diff options
| author | David S. Miller <davem@davemloft.net> | 2008-03-17 23:44:31 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-03-17 23:44:31 -0700 |
| commit | 2f633928cbba8a5858bb39b11e7219a41b0fbef5 (patch) | |
| tree | 9a82f4b7f2c3afe4b0208d8e44ea61bae90a7d22 /fs | |
| parent | 5e226e4d9016daee170699f8a4188a5505021756 (diff) | |
| parent | bde4f8fa8db2abd5ac9c542d76012d0fedab050f (diff) | |
| download | linux-2f633928cbba8a5858bb39b11e7219a41b0fbef5.tar.bz2 | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'fs')
83 files changed, 1144 insertions, 926 deletions
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index 41a958a7585e..5e1a4fb5cacb 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -1424,6 +1424,18 @@ struct elf_note_info { int thread_notes; }; +/* + * When a regset has a writeback hook, we call it on each thread before + * dumping user memory. On register window machines, this makes sure the + * user memory backing the register data is up to date before we read it. + */ +static void do_thread_regset_writeback(struct task_struct *task, + const struct user_regset *regset) +{ + if (regset->writeback) + regset->writeback(task, regset, 1); +} + static int fill_thread_core_info(struct elf_thread_core_info *t, const struct user_regset_view *view, long signr, size_t *total) @@ -1445,6 +1457,8 @@ static int fill_thread_core_info(struct elf_thread_core_info *t, sizeof(t->prstatus), &t->prstatus); *total += notesize(&t->notes[0]); + do_thread_regset_writeback(t->task, &view->regsets[0]); + /* * Each other regset might generate a note too. For each regset * that has no core_note_type or is inactive, we leave t->notes[i] @@ -1452,6 +1466,7 @@ static int fill_thread_core_info(struct elf_thread_core_info *t, */ for (i = 1; i < view->n; ++i) { const struct user_regset *regset = &view->regsets[i]; + do_thread_regset_writeback(t->task, regset); if (regset->core_note_type && (!regset->active || regset->active(t->task, regset))) { int ret; diff --git a/fs/buffer.c b/fs/buffer.c index 3ebccf4aa7e3..ddfdd2c80bf9 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -627,8 +627,7 @@ repeat: } /** - * sync_mapping_buffers - write out and wait upon a mapping's "associated" - * buffers + * sync_mapping_buffers - write out & wait upon a mapping's "associated" buffers * @mapping: the mapping which wants those buffers written * * Starts I/O against the buffers at mapping->private_list, and waits upon @@ -836,7 +835,7 @@ static int fsync_buffers_list(spinlock_t *lock, struct list_head *list) smp_mb(); if (buffer_dirty(bh)) { list_add(&bh->b_assoc_buffers, - &bh->b_assoc_map->private_list); + &mapping->private_list); bh->b_assoc_map = mapping; } spin_unlock(lock); diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index edd248367b36..dbd91461853c 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -6,7 +6,9 @@ and sync so that events like out of disk space get reported properly on cached files. Fix setxattr failure to certain Samba versions. Fix mount of second share to disconnected server session (autoreconnect on this). Add ability to modify cifs acls for handling chmod (when mounted with -cifsacl flag). +cifsacl flag). Fix prefixpath path separator so we can handle mounts +with prefixpaths longer than one directory (one path component) when +mounted to Windows servers. Version 1.51 ------------ diff --git a/fs/cifs/README b/fs/cifs/README index c623e2f9c5db..50306229b0f9 100644 --- a/fs/cifs/README +++ b/fs/cifs/README @@ -461,7 +461,7 @@ A partial list of the supported mount options follows: cifsacl Report mode bits (e.g. on stat) based on the Windows ACL for the file. (EXPERIMENTAL) servern Specify the server 's netbios name (RFC1001 name) to use - when attempting to setup a session to the server. This is + when attempting to setup a session to the server. This is needed for mounting to some older servers (such as OS/2 or Windows 98 and Windows ME) since they do not support a default server name. A server name can be up diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index 73c4c419663c..0228ed06069e 100644 --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -98,8 +98,7 @@ void cifs_dump_mids(struct TCP_Server_Info *server) if (mid_entry->resp_buf) { cifs_dump_detail(mid_entry->resp_buf); cifs_dump_mem("existing buf: ", - mid_entry->resp_buf, - 62 /* fixme */); + mid_entry->resp_buf, 62); } } } @@ -439,7 +438,7 @@ cifs_stats_read(char *buf, char **beginBuffer, off_t offset, return length; } -#endif +#endif /* STATS */ static struct proc_dir_entry *proc_fs_cifs; read_proc_t cifs_txanchor_read; @@ -482,7 +481,7 @@ cifs_proc_init(void) cifs_stats_read, NULL); if (pde) pde->write_proc = cifs_stats_write; -#endif +#endif /* STATS */ pde = create_proc_read_entry("cifsFYI", 0, proc_fs_cifs, cifsFYI_read, NULL); if (pde) @@ -918,4 +917,12 @@ security_flags_write(struct file *file, const char __user *buffer, /* BB should we turn on MAY flags for other MUST options? */ return count; } -#endif +#else +inline void cifs_proc_init(void) +{ +} + +inline void cifs_proc_clean(void) +{ +} +#endif /* PROC_FS */ diff --git a/fs/cifs/cifs_debug.h b/fs/cifs/cifs_debug.h index c26cd0d2c6d5..5eb3b83bbfa7 100644 --- a/fs/cifs/cifs_debug.h +++ b/fs/cifs/cifs_debug.h @@ -25,8 +25,11 @@ void cifs_dump_mem(char *label, void *data, int length); #ifdef CONFIG_CIFS_DEBUG2 +#define DBG2 2 void cifs_dump_detail(struct smb_hdr *); void cifs_dump_mids(struct TCP_Server_Info *); +#else +#define DBG2 0 #endif extern int traceSMB; /* flag which enables the function below */ void dump_smb(struct smb_hdr *, int); @@ -64,10 +67,10 @@ extern int cifsERROR; * --------- */ #else /* _CIFS_DEBUG */ -#define cERROR(button,prspec) -#define cEVENT(format,arg...) +#define cERROR(button, prspec) +#define cEVENT(format, arg...) #define cFYI(button, prspec) -#define cifserror(format,arg...) +#define cifserror(format, arg...) #endif /* _CIFS_DEBUG */ #endif /* _H_CIFS_DEBUG */ diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c index 6ad447529961..7f8838253410 100644 --- a/fs/cifs/cifs_dfs_ref.c +++ b/fs/cifs/cifs_dfs_ref.c @@ -286,7 +286,7 @@ static void dump_referral(const struct dfs_info3_param *ref) cFYI(1, ("DFS: node path: %s", ref->node_name)); cFYI(1, ("DFS: fl: %hd, srv_type: %hd", ref->flags, ref->server_type)); cFYI(1, ("DFS: ref_flags: %hd, path_consumed: %hd", ref->ref_flag, - ref->PathConsumed)); + ref->path_consumed)); } diff --git a/fs/cifs/cifs_spnego.c b/fs/cifs/cifs_spnego.c index d543accc10dd..6653e29637a7 100644 --- a/fs/cifs/cifs_spnego.c +++ b/fs/cifs/cifs_spnego.c @@ -125,7 +125,7 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo) #ifdef CONFIG_CIFS_DEBUG2 if (cifsFYI && !IS_ERR(spnego_key)) { struct cifs_spnego_msg *msg = spnego_key->payload.data; - cifs_dump_mem("SPNEGO reply blob:", msg->data, min(1024, + cifs_dump_mem("SPNEGO reply blob:", msg->data, min(1024U, msg->secblob_len + msg->sesskey_len)); } #endif /* CONFIG_CIFS_DEBUG2 */ diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c index b5903b89250d..7d75272a6b3f 100644 --- a/fs/cifs/cifs_unicode.c +++ b/fs/cifs/cifs_unicode.c @@ -32,7 +32,7 @@ * */ int -cifs_strfromUCS_le(char *to, const __le16 * from, +cifs_strfromUCS_le(char *to, const __le16 *from, int len, const struct nls_table *codepage) { int i; @@ -61,7 +61,7 @@ cifs_strfromUCS_le(char *to, const __le16 * from, * */ int -cifs_strtoUCS(__le16 * to, const char *from, int len, +cifs_strtoUCS(__le16 *to, const char *from, int len, const struct nls_table *codepage) { int charlen; diff --git a/fs/cifs/cifs_unicode.h b/fs/cifs/cifs_unicode.h index 614c11fcdcb6..14eb9a2395d3 100644 --- a/fs/cifs/cifs_unicode.h +++ b/fs/cifs/cifs_unicode.h @@ -254,7 +254,8 @@ UniStrstr(const wchar_t *ucs1, const wchar_t *ucs2) const wchar_t *anchor2 = ucs2; while (*ucs1) { - if (*ucs1 == *ucs2) { /* Partial match found */ + if (*ucs1 == *ucs2) { + /* Partial match found */ ucs1++; ucs2++; } else { @@ -279,7 +280,8 @@ UniToupper(register wchar_t uc) { register const struct UniCaseRange *rp; - if (uc < sizeof (CifsUniUpperTable)) { /* Latin characters */ + if (uc < sizeof(CifsUniUpperTable)) { + /* Latin characters */ return uc + CifsUniUpperTable[uc]; /* Use base tables */ } else { rp = CifsUniUpperRange; /* Use range tables */ @@ -320,7 +322,8 @@ UniTolower(wchar_t uc) { register struct UniCaseRange *rp; - if (uc < sizeof (UniLowerTable)) { /* Latin characters */ + if (uc < sizeof(UniLowerTable)) { + /* Latin characters */ return uc + UniLowerTable[uc]; /* Use base tables */ } else { rp = UniLowerRange; /* Use range tables */ diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c index a7035bd18e4e..f93932c21772 100644 --- a/fs/cifs/cifsacl.c +++ b/fs/cifs/cifsacl.c @@ -46,8 +46,7 @@ static struct cifs_wksid wksidarr[NUM_WK_SIDS] = { static const struct cifs_sid sid_everyone = { 1, 1, {0, 0, 0, 0, 0, 1}, {0} }; /* group users */ -static const struct cifs_sid sid_user = - {1, 2 , {0, 0, 0, 0, 0, 5}, {} }; +static const struct cifs_sid sid_user = {1, 2 , {0, 0, 0, 0, 0, 5}, {} }; int match_sid(struct cifs_sid *ctsid) @@ -195,9 +194,9 @@ static void access_flags_to_mode(__le32 ace_flags, int type, umode_t *pmode, /* For deny ACEs we change the mask so that subsequent allow access control entries do not turn on the bits we are denying */ if (type == ACCESS_DENIED) { - if (flags & GENERIC_ALL) { + if (flags & GENERIC_ALL) *pbits_to_set &= ~S_IRWXUGO; - } + if ((flags & GENERIC_WRITE) || ((flags & FILE_WRITE_RIGHTS) == FILE_WRITE_RIGHTS)) *pbits_to_set &= ~S_IWUGO; @@ -216,9 +215,7 @@ static void access_flags_to_mode(__le32 ace_flags, int type, umode_t *pmode, if (flags & GENERIC_ALL) { *pmode |= (S_IRWXUGO & (*pbits_to_set)); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("all perms")); -#endif + cFYI(DBG2, ("all perms")); return; } if ((flags & GENERIC_WRITE) || @@ -231,9 +228,7 @@ static void access_flags_to_mode(__le32 ace_flags, int type, umode_t *pmode, ((flags & FILE_EXEC_RIGHTS) == FILE_EXEC_RIGHTS)) *pmode |= (S_IXUGO & (*pbits_to_set)); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("access flags 0x%x mode now 0x%x", flags, *pmode)); -#endif + cFYI(DBG2, ("access flags 0x%x mode now 0x%x", flags, *pmode)); return; } @@ -262,9 +257,7 @@ static void mode_to_access_flags(umode_t mode, umode_t bits_to_use, if (mode & S_IXUGO) *pace_flags |= SET_FILE_EXEC_RIGHTS; -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("mode: 0x%x, access flags now 0x%x", mode, *pace_flags)); -#endif + cFYI(DBG2, ("mode: 0x%x, access flags now 0x%x", mode, *pace_flags)); return; } @@ -358,11 +351,9 @@ static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl, return; } -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("DACL revision %d size %d num aces %d", + cFYI(DBG2, ("DACL revision %d size %d num aces %d", le16_to_cpu(pdacl->revision), le16_to_cpu(pdacl->size), le32_to_cpu(pdacl->num_aces))); -#endif /* reset rwx permissions for user/group/other. Also, if num_aces is 0 i.e. DACL has no ACEs, @@ -381,10 +372,6 @@ static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl, ppace = kmalloc(num_aces * sizeof(struct cifs_ace *), GFP_KERNEL); -/* cifscred->cecount = pdacl->num_aces; - cifscred->aces = kmalloc(num_aces * - sizeof(struct cifs_ace *), GFP_KERNEL);*/ - for (i = 0; i < num_aces; ++i) { ppace[i] = (struct cifs_ace *) (acl_base + acl_size); #ifdef CONFIG_CIFS_DEBUG2 @@ -437,7 +424,7 @@ static int set_chmod_dacl(struct cifs_acl *pndacl, struct cifs_sid *pownersid, &sid_everyone, nmode, S_IRWXO); pndacl->size = cpu_to_le16(size + sizeof(struct cifs_acl)); - pndacl->num_aces = 3; + pndacl->num_aces = cpu_to_le32(3); return (0); } @@ -495,13 +482,11 @@ static int parse_sec_desc(struct cifs_ntsd *pntsd, int acl_len, le32_to_cpu(pntsd->gsidoffset)); dacloffset = le32_to_cpu(pntsd->dacloffset); dacl_ptr = (struct cifs_acl *)((char *)pntsd + dacloffset); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("revision %d type 0x%x ooffset 0x%x goffset 0x%x " + cFYI(DBG2, ("revision %d type 0x%x ooffset 0x%x goffset 0x%x " "sacloffset 0x%x dacloffset 0x%x", pntsd->revision, pntsd->type, le32_to_cpu(pntsd->osidoffset), le32_to_cpu(pntsd->gsidoffset), le32_to_cpu(pntsd->sacloffset), dacloffset)); -#endif /* cifs_dump_mem("owner_sid: ", owner_sid_ptr, 64); */ rc = parse_sid(owner_sid_ptr, end_of_acl); if (rc) @@ -636,9 +621,7 @@ static int set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen, struct super_block *sb; struct cifs_sb_info *cifs_sb; -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("set ACL for %s from mode 0x%x", path, inode->i_mode)); -#endif + cFYI(DBG2, ("set ACL for %s from mode 0x%x", path, inode->i_mode)); if (!inode) return (rc); @@ -669,9 +652,7 @@ static int set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen, } rc = CIFSSMBSetCIFSACL(xid, cifs_sb->tcon, fid, pnntsd, acllen); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("SetCIFSACL rc = %d", rc)); -#endif + cFYI(DBG2, ("SetCIFSACL rc = %d", rc)); if (unlock_file == TRUE) atomic_dec(&open_file->wrtPending); else @@ -689,9 +670,7 @@ void acl_to_uid_mode(struct inode *inode, const char *path) u32 acllen = 0; int rc = 0; -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("converting ACL to mode for %s", path)); -#endif + cFYI(DBG2, ("converting ACL to mode for %s", path)); pntsd = get_cifs_acl(&acllen, inode, path); /* if we can retrieve the ACL, now parse Access Control Entries, ACEs */ @@ -712,9 +691,7 @@ int mode_to_acl(struct inode *inode, const char *path, __u64 nmode) struct cifs_ntsd *pntsd = NULL; /* acl obtained from server */ struct cifs_ntsd *pnntsd = NULL; /* modified acl to be sent to server */ -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("set ACL from mode for %s", path)); -#endif + cFYI(DBG2, ("set ACL from mode for %s", path)); /* Get the security descriptor */ pntsd = get_cifs_acl(&acllen, inode, path); @@ -736,16 +713,12 @@ int mode_to_acl(struct inode *inode, const char *path, __u64 nmode) rc = build_sec_desc(pntsd, pnntsd, acllen, inode, nmode); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("build_sec_desc rc: %d", rc)); -#endif + cFYI(DBG2, ("build_sec_desc rc: %d", rc)); if (!rc) { /* Set the security descriptor */ rc = set_cifs_acl(pnntsd, acllen, inode, path); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("set_cifs_acl rc: %d", rc)); -#endif + cFYI(DBG2, ("set_cifs_acl rc: %d", rc)); } kfree(pnntsd); diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index fcc434227691..a04b17e5a9d0 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -204,9 +204,8 @@ cifs_put_super(struct super_block *sb) return; } rc = cifs_umount(sb, cifs_sb); - if (rc) { + if (rc) cERROR(1, ("cifs_umount failed with return code %d", rc)); - } #ifdef CONFIG_CIFS_DFS_UPCALL if (cifs_sb->mountdata) { kfree(cifs_sb->mountdata); @@ -461,7 +460,7 @@ int cifs_xstate_get(struct super_block *sb, struct fs_quota_stat *qstats) static struct quotactl_ops cifs_quotactl_ops = { .set_xquota = cifs_xquota_set, - .get_xquota = cifs_xquota_set, + .get_xquota = cifs_xquota_get, .set_xstate = cifs_xstate_set, .get_xstate = cifs_xstate_get, }; @@ -472,9 +471,7 @@ static void cifs_umount_begin(struct vfsmount *vfsmnt, int flags) struct cifs_sb_info *cifs_sb; struct cifsTconInfo *tcon; -#ifdef CONFIG_CIFS_DFS_UPCALL dfs_shrink_umount_helper(vfsmnt); -#endif /* CONFIG CIFS_DFS_UPCALL */ if (!(flags & MNT_FORCE)) return; @@ -992,9 +989,7 @@ static int __init init_cifs(void) { int rc = 0; -#ifdef CONFIG_PROC_FS cifs_proc_init(); -#endif /* INIT_LIST_HEAD(&GlobalServerList);*/ /* BB not implemented yet */ INIT_LIST_HEAD(&GlobalSMBSessionList); INIT_LIST_HEAD(&GlobalTreeConnectionList); @@ -1095,19 +1090,15 @@ init_cifs(void) out_destroy_inodecache: cifs_destroy_inodecache(); out_clean_proc: -#ifdef CONFIG_PROC_FS cifs_proc_clean(); -#endif return rc; } static void __exit exit_cifs(void) { - cFYI(0, ("exit_cifs")); -#ifdef CONFIG_PROC_FS + cFYI(DBG2, ("exit_cifs")); cifs_proc_clean(); -#endif #ifdef CONFIG_CIFS_DFS_UPCALL unregister_key_type(&key_type_dns_resolver); #endif diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 5d32d8ddc82e..69a2e1942542 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -454,7 +454,7 @@ struct dir_notify_req { struct dfs_info3_param { int flags; /* DFSREF_REFERRAL_SERVER, DFSREF_STORAGE_SERVER*/ - int PathConsumed; + int path_consumed; int server_type; int ref_flag; char *path_name; diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 2f09f565a3d9..0af63e6b426b 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -53,11 +53,11 @@ extern int SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses, extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *, struct kvec *, int /* nvec to send */, int * /* type of buf returned */ , const int flags); -extern int SendReceiveBlockingLock(const unsigned int /* xid */ , - struct cifsTconInfo *, - struct smb_hdr * /* input */ , - struct smb_hdr * /* out */ , - int * /* bytes returned */); +extern int SendReceiveBlockingLock(const unsigned int xid, + struct cifsTconInfo *ptcon, + struct smb_hdr *in_buf , + struct smb_hdr *out_buf, + int *bytes_returned); extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length); extern int is_valid_oplock_break(struct smb_hdr *smb, struct TCP_Server_Info *); extern int is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof); @@ -84,7 +84,7 @@ extern __u16 GetNextMid(struct TCP_Server_Info *server); extern struct oplock_q_entry *AllocOplockQEntry(struct inode *, u16, struct cifsTconInfo *); extern void DeleteOplockQEntry(struct oplock_q_entry *); -extern struct timespec cifs_NTtimeToUnix(u64 /* utc nanoseconds since 1601 */ ); +extern struct timespec cifs_NTtimeToUnix(u64 utc_nanoseconds_since_1601); extern u64 cifs_UnixTimeToNT(struct timespec); extern __le64 cnvrtDosCifsTm(__u16 date, __u16 time); extern struct timespec cnvrtDosUnixTm(__u16 date, __u16 time); @@ -104,7 +104,11 @@ extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *, extern int cifs_umount(struct super_block *, struct cifs_sb_info *); #ifdef CONFIG_CIFS_DFS_UPCALL extern void dfs_shrink_umount_helper(struct vfsmount *vfsmnt); -#endif +#else +static inline void dfs_shrink_umount_helper(struct vfsmount *vfsmnt) +{ +} +#endif /* DFS_UPCALL */ void cifs_proc_init(void); void cifs_proc_clean(void); @@ -175,11 +179,11 @@ extern int CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData); extern int CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, - const char *fileName, const FILE_BASIC_INFO * data, + const char *fileName, const FILE_BASIC_INFO *data, const struct nls_table *nls_codepage, int remap_special_chars); extern int CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, - const FILE_BASIC_INFO * data, __u16 fid); + const FILE_BASIC_INFO *data, __u16 fid); #if 0 extern int CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName, __u16 dos_attributes, diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 9409524e4bf8..30bbe448e260 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -1,7 +1,7 @@ /* * fs/cifs/cifssmb.c * - * Copyright (C) International Business Machines Corp., 2002,2007 + * Copyright (C) International Business Machines Corp., 2002,2008 * Author(s): Steve French (sfrench@us.ibm.com) * * Contains the routines for constructing the SMB PDUs themselves @@ -102,10 +102,12 @@ static void mark_open_files_invalid(struct cifsTconInfo *pTcon) to this tcon */ } -/* If the return code is zero, this function must fill in request_buf pointer */ +/* Allocate and return pointer to an SMB request buffer, and set basic + SMB information in the SMB header. If the return code is zero, this + function must have filled in request_buf pointer */ static int small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, - void **request_buf /* returned */) + void **request_buf) { int rc = 0; @@ -363,7 +365,7 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, *response_buf = *request_buf; header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, - wct /*wct */ ); + wct); if (tcon != NULL) cifs_stats_inc(&tcon->num_smbs_sent); @@ -523,7 +525,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) if (remain >= (MIN_TZ_ADJ / 2)) result += MIN_TZ_ADJ; if (val < 0) - result = - result; + result = -result; server->timeAdj = result; } else { server->timeAdj = (int)tmp; @@ -600,7 +602,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize), (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); server->maxRw = le32_to_cpu(pSMBr->MaxRawSize); - cFYI(0, ("Max buf = %d", ses->server->maxBuf)); + cFYI(DBG2, ("Max buf = %d", ses->server->maxBuf)); GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey); server->capabilities = le32_to_cpu(pSMBr->Capabilities); server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone); @@ -868,9 +870,8 @@ PsxDelete: pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { + if (rc) cFYI(1, ("Posix delete returned %d", rc)); - } cifs_buf_release(pSMB); cifs_stats_inc(&tcon->num_deletes); @@ -916,9 +917,8 @@ DelFileRetry: rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_deletes); - if (rc) { + if (rc) cFYI(1, ("Error in RMFile = %d", rc)); - } cifs_buf_release(pSMB); if (rc == -EAGAIN) @@ -961,9 +961,8 @@ RmDirRetry: rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_rmdirs); - if (rc) { + if (rc) cFYI(1, ("Error in RMDir = %d", rc)); - } cifs_buf_release(pSMB); if (rc == -EAGAIN) @@ -1005,9 +1004,8 @@ MkDirRetry: rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_mkdirs); - if (rc) { + if (rc) cFYI(1, ("Error in Mkdir = %d", rc)); - } cifs_buf_release(pSMB); if (rc == -EAGAIN) @@ -1017,7 +1015,7 @@ MkDirRetry: int CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, - __u64 mode, __u16 * netfid, FILE_UNIX_BASIC_INFO *pRetData, + __u64 mode, __u16 *netfid, FILE_UNIX_BASIC_INFO *pRetData, __u32 *pOplock, const char *name, const struct nls_table *nls_codepage, int remap) { @@ -1027,8 +1025,8 @@ CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, int rc = 0; int bytes_returned = 0; __u16 params, param_offset, offset, byte_count, count; - OPEN_PSX_REQ * pdata; - OPEN_PSX_RSP * psx_rsp; + OPEN_PSX_REQ *pdata; + OPEN_PSX_RSP *psx_rsp; cFYI(1, ("In POSIX Create")); PsxCreat: @@ -1110,9 +1108,7 @@ PsxCreat: /* check to make sure response data is there */ if (psx_rsp->ReturnedLevel != cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC)) { pRetData->Type = cpu_to_le32(-1); /* unknown */ -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("unknown type")); -#endif + cFYI(DBG2, ("unknown type")); } else { if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP) + sizeof(FILE_UNIX_BASIC_INFO)) { @@ -1169,8 +1165,8 @@ static __u16 convert_disposition(int disposition) int SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, const char *fileName, const int openDisposition, - const int access_flags, const int create_options, __u16 * netfid, - int *pOplock, FILE_ALL_INFO * pfile_info, + const int access_flags, const int create_options, __u16 *netfid, + int *pOplock, FILE_ALL_INFO *pfile_info, const struct nls_table *nls_codepage, int remap) { int rc = -EACCES; @@ -1221,8 +1217,8 @@ OldOpenRetry: if (create_options & CREATE_OPTION_SPECIAL) pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); - else - pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* BB FIXME */ + else /* BB FIXME BB */ + pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* if ((omode & S_IWUGO) == 0) pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ @@ -1284,8 +1280,8 @@ OldOpenRetry: int CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, const char *fileName, const int openDisposition, - const int access_flags, const int create_options, __u16 * netfid, - int *pOplock, FILE_ALL_INFO * pfile_info, + const int access_flags, const int create_options, __u16 *netfid, + int *pOplock, FILE_ALL_INFO *pfile_info, const struct nls_table *nls_codepage, int remap) { int rc = -EACCES; @@ -1556,9 +1552,9 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, } /* else setting file size with write of zero bytes */ if (wct == 14) byte_count = bytes_sent + 1; /* pad */ - else /* wct == 12 */ { + else /* wct == 12 */ byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ - } + pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF); pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); pSMB->hdr.smb_buf_length += byte_count; @@ -1663,7 +1659,7 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, rc = -EIO; *nbytes = 0; } else { - WRITE_RSP * pSMBr = (WRITE_RSP *)iov[0].iov_base; + WRITE_RSP *pSMBr = (WRITE_RSP *)iov[0].iov_base; *nbytes = le16_to_cpu(pSMBr->CountHigh); *nbytes = (*nbytes) << 16; *nbytes += le16_to_cpu(pSMBr->Count); @@ -1744,9 +1740,8 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, /* SMB buffer freed by function above */ } cifs_stats_inc(&tcon->num_locks); - if (rc) { + if (rc) cFYI(1, ("Send error in Lock = %d", rc)); - } /* Note: On -EAGAIN error only caller can retry on handle based calls since file handle passed in no longer valid */ @@ -1791,7 +1786,7 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, count = sizeof(struct cifs_posix_lock); pSMB->MaxParameterCount = cpu_to_le16(2); - pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ + pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ pSMB->SetupCount = 1; pSMB->Reserved3 = 0; if (get_flag) @@ -1972,9 +1967,8 @@ renameRetry: rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_renames); - if (rc) { + if (rc) cFYI(1, ("Send error in rename = %d", rc)); - } cifs_buf_release(pSMB); @@ -2016,7 +2010,7 @@ int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, data_offset = (char *) (&pSMB->hdr.Protocol) + offset; rename_info = (struct set_file_rename *) data_offset; pSMB->MaxParameterCount = cpu_to_le16(2); - pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ + pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ pSMB->SetupCount = 1; pSMB->Reserved3 = 0; pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); @@ -2052,9 +2046,8 @@ int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&pTcon->num_t2renames); - if (rc) { + if (rc) cFYI(1, ("Send error in Rename (by file handle) = %d", rc)); - } cifs_buf_release(pSMB); @@ -2211,9 +2204,8 @@ createSymLinkRetry: rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_symlinks); - if (rc) { + if (rc) cFYI(1, ("Send error in SetPathInfo create symlink = %d", rc)); - } if (pSMB) cifs_buf_release(pSMB); @@ -2299,9 +2291,8 @@ createHardLinkRetry: rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_hardlinks); - if (rc) { + if (rc) cFYI(1, ("Send error in SetPathInfo (hard link) = %d", rc)); - } cifs_buf_release(pSMB); if (rc == -EAGAIN) @@ -2370,9 +2361,9 @@ winCreateHardLinkRetry: rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_hardlinks); - if (rc) { + if (rc) cFYI(1, ("Send error in hard link (NT rename) = %d", rc)); - } + cifs_buf_release(pSMB); if (rc == -EAGAIN) goto winCreateHardLinkRetry; @@ -2968,9 +2959,8 @@ setAclRetry: pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { + if (rc) cFYI(1, ("Set POSIX ACL returned %d", rc)); - } setACLerrorExit: cifs_buf_release(pSMB); @@ -2982,7 +2972,7 @@ setACLerrorExit: /* BB fix tabs in this function FIXME BB */ int CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, - const int netfid, __u64 * pExtAttrBits, __u64 *pMask) + const int netfid, __u64 *pExtAttrBits, __u64 *pMask) { int rc = 0; struct smb_t2_qfi_req *pSMB = NULL; @@ -3000,7 +2990,7 @@ GetExtAttrRetry: if (rc) return rc; - params = 2 /* level */ +2 /* fid */; + params = 2 /* level */ + 2 /* fid */; pSMB->t2.TotalDataCount = 0; pSMB->t2.MaxParameterCount = cpu_to_le16(4); /* BB find exact max data count below from sess structure BB */ @@ -3071,7 +3061,7 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, { int rc = 0; int buf_type = 0; - QUERY_SEC_DESC_REQ * pSMB; + QUERY_SEC_DESC_REQ *pSMB; struct kvec iov[1]; cFYI(1, ("GetCifsACL")); @@ -3101,7 +3091,7 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, if (rc) { cFYI(1, ("Send error in QuerySecDesc = %d", rc)); } else { /* decode response */ - __le32 * parm; + __le32 *parm; __u32 parm_len; __u32 acl_len; struct smb_com_ntransact_rsp *pSMBr; @@ -3230,8 +3220,8 @@ int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, FILE_ALL_INFO *pFinfo, const struct nls_table *nls_codepage, int remap) { - QUERY_INFORMATION_REQ * pSMB; - QUERY_INFORMATION_RSP * pSMBr; + QUERY_INFORMATION_REQ *pSMB; + QUERY_INFORMATION_RSP *pSMBr; int rc = 0; int bytes_returned; int name_len; @@ -3263,9 +3253,11 @@ QInfRetry: (struct smb_hdr *) pSMBr, &bytes_returned, 0); if (rc) { cFYI(1, ("Send error in QueryInfo = %d", rc)); - } else if (pFinfo) { /* decode response */ + } else if (pFinfo) { struct timespec ts; __u32 time = le32_to_cpu(pSMBr->last_write_time); + + /* decode response */ /* BB FIXME - add time zone adjustment BB */ memset(pFinfo, 0, sizeof(FILE_ALL_INFO)); ts.tv_nsec = 0; @@ -3296,7 +3288,7 @@ QInfRetry: int CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, - FILE_ALL_INFO * pFindData, + FILE_ALL_INFO *pFindData, int legacy /* old style infolevel */, const struct nls_table *nls_codepage, int remap) { @@ -3371,10 +3363,12 @@ QPathInfoRetry: else if (pFindData) { int size; __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); - if (legacy) /* we do not read the last field, EAsize, - fortunately since it varies by subdialect - and on Set vs. Get, is two bytes or 4 - bytes depending but we don't care here */ + + /* On legacy responses we do not read the last field, + EAsize, fortunately since it varies by subdialect and + also note it differs on Set vs. Get, ie two bytes or 4 + bytes depending but we don't care here */ + if (legacy) size = sizeof(FILE_INFO_STANDARD); else size = sizeof(FILE_ALL_INFO); @@ -3476,85 +3470,6 @@ UnixQPathInfoRetry: return rc; } -#if 0 /* function unused at present */ -int CIFSFindSingle(const int xid, struct cifsTconInfo *tcon, - const char *searchName, FILE_ALL_INFO * findData, - const struct nls_table *nls_codepage) -{ -/* level 257 SMB_ */ - TRANSACTION2_FFIRST_REQ *pSMB = NULL; - TRANSACTION2_FFIRST_RSP *pSMBr = NULL; - int rc = 0; - int bytes_returned; - int name_len; - __u16 params, byte_count; - - cFYI(1, ("In FindUnique")); -findUniqueRetry: - rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, - (void **) &pSMBr); - if (rc) - return rc; - - if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { - name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, - PATH_MAX, nls_codepage); - name_len++; /* trailing null */ - name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ - name_len = strnlen(searchName, PATH_MAX); - name_len++; /* trailing null */ - strncpy(pSMB->FileName, searchName, name_len); - } - - params = 12 + name_len /* includes null */ ; - pSMB->TotalDataCount = 0; /* no EAs */ - pSMB->MaxParameterCount = cpu_to_le16(2); - pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ - pSMB->MaxSetupCount = 0; - pSMB->Reserved = 0; - pSMB->Flags = 0; - pSMB->Timeout = 0; - pSMB->Reserved2 = 0; - pSMB->ParameterOffset = cpu_to_le16( - offsetof(struct smb_com_transaction2_ffirst_req, InformationLevel)-4); - pSMB->DataCount = 0; - pSMB->DataOffset = 0; - pSMB->SetupCount = 1; /* one byte, no need to le convert */ - pSMB->Reserved3 = 0; - pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); - byte_count = params + 1 /* pad */ ; - pSMB->TotalParameterCount = cpu_to_le16(params); - pSMB->ParameterCount = pSMB->TotalParameterCount; - pSMB->SearchAttributes = - cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | - ATTR_DIRECTORY); - pSMB->SearchCount = cpu_to_le16(16); /* BB increase */ - pSMB->SearchFlags = cpu_to_le16(1); - pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); - pSMB->SearchStorageType = 0; /* BB what should we set this to? BB */ - pSMB->hdr.smb_buf_length += byte_count; - pSMB->ByteCount = cpu_to_le16(byte_count); - - rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, - (struct smb_hdr *) pSMBr, &bytes_returned, 0); - - if (rc) { - cFYI(1, ("Send error in FindFileDirInfo = %d", rc)); - } else { /* decode response */ - cifs_stats_inc(&tcon->num_ffirst); - /* BB fill in */ - } - - cifs_buf_release(pSMB); - if (rc == -EAGAIN) - goto findUniqueRetry; - - return rc; -} -#endif /* end unused (temporarily) function */ - /* xid, tcon, searchName and codepage are input parms, rest are returned */ int CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, @@ -3566,7 +3481,7 @@ CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, /* level 257 SMB_ */ TRANSACTION2_FFIRST_REQ *pSMB = NULL; TRANSACTION2_FFIRST_RSP *pSMBr = NULL; - T2_FFIRST_RSP_PARMS * parms; + T2_FFIRST_RSP_PARMS *parms; int rc = 0; int bytes_returned = 0; int name_len; @@ -3697,7 +3612,7 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, { TRANSACTION2_FNEXT_REQ *pSMB = NULL; TRANSACTION2_FNEXT_RSP *pSMBr = NULL; - T2_FNEXT_RSP_PARMS * parms; + T2_FNEXT_RSP_PARMS *parms; char *response_data; int rc = 0; int bytes_returned, name_len; @@ -3836,9 +3751,9 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon, pSMB->FileID = searchHandle; pSMB->ByteCount = 0; rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); - if (rc) { + if (rc) cERROR(1, ("Send error in FindClose = %d", rc)); - } + cifs_stats_inc(&tcon->num_fclose); /* Since session is dead, search handle closed on server already */ @@ -3851,7 +3766,7 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon, int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, - __u64 * inode_number, + __u64 *inode_number, const struct nls_table *nls_codepage, int remap) { int rc = 0; @@ -4560,9 +4475,8 @@ SETFSUnixRetry: cERROR(1, ("Send error in SETFSUnixInfo = %d", rc)); } else { /* decode response */ rc = validate_t2((struct smb_t2_rsp *)pSMBr); - if (rc) { + if (rc) rc = -EIO; /* bad smb */ - } } cifs_buf_release(pSMB); @@ -4744,9 +4658,8 @@ SetEOFRetry: pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { + if (rc) cFYI(1, ("SetPathInfo (file size) returned %d", rc)); - } cifs_buf_release(pSMB); @@ -4897,9 +4810,8 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, pSMB->ByteCount = cpu_to_le16(byte_count); memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); - if (rc) { + if (rc) cFYI(1, ("Send error in Set Time (SetFileInfo) = %d", rc)); - } /* Note: On -EAGAIN error only caller can retry on handle based calls since file handle passed in no longer valid */ @@ -4975,9 +4887,8 @@ SetTimesRetry: pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { + if (rc) cFYI(1, ("SetPathInfo (times) returned %d", rc)); - } cifs_buf_release(pSMB); @@ -5027,9 +4938,8 @@ SetAttrLgcyRetry: pSMB->ByteCount = cpu_to_le16(name_len + 1); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { + if (rc) cFYI(1, ("Error in LegacySetAttr = %d", rc)); - } cifs_buf_release(pSMB); @@ -5138,9 +5048,8 @@ setPermsRetry: pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { + if (rc) cFYI(1, ("SetPathInfo (perms) returned %d", rc)); - } if (pSMB) cifs_buf_release(pSMB); @@ -5615,9 +5524,8 @@ SetEARetry: pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { + if (rc) cFYI(1, ("SetPathInfo (EA) returned %d", rc)); - } cifs_buf_release(pSMB); diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 65d0ba72e78f..8dbfa97cd18c 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1722,8 +1722,15 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon, originally at mount time */ if ((saved_cap & CIFS_UNIX_POSIX_ACL_CAP) == 0) cap &= ~CIFS_UNIX_POSIX_ACL_CAP; - if ((saved_cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0) + if ((saved_cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0) { + if (cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) + cERROR(1, ("POSIXPATH support change")); cap &= ~CIFS_UNIX_POSIX_PATHNAMES_CAP; + } else if ((cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0) { + cERROR(1, ("possible reconnect error")); + cERROR(1, + ("server disabled POSIX path support")); + } } cap &= CIFS_UNIX_CAP_MASK; @@ -1753,9 +1760,8 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon, if (sb && (CIFS_SB(sb)->rsize > 127 * 1024)) { if ((cap & CIFS_UNIX_LARGE_READ_CAP) == 0) { CIFS_SB(sb)->rsize = 127 * 1024; -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("larger reads not supported by srv")); -#endif + cFYI(DBG2, + ("larger reads not supported by srv")); } } @@ -1792,6 +1798,26 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon, } } +static void +convert_delimiter(char *path, char delim) +{ + int i; + char old_delim; + + if (path == NULL) + return; + + if (delim == '/') + old_delim = '\\'; + else + old_delim = '/'; + + for (i = 0; path[i] != '\0'; i++) { + if (path[i] == old_delim) + path[i] = delim; + } +} + int cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, char *mount_data, const char *devname) @@ -2057,7 +2083,11 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, cifs_sb->prepath = volume_info.prepath; if (cifs_sb->prepath) { cifs_sb->prepathlen = strlen(cifs_sb->prepath); - cifs_sb->prepath[0] = CIFS_DIR_SEP(cifs_sb); + /* we can not convert the / to \ in the path + separators in the prefixpath yet because we do not + know (until reset_cifs_unix_caps is called later) + whether POSIX PATH CAP is available. We normalize + the / to \ after reset_cifs_unix_caps is called */ volume_info.prepath = NULL; } else cifs_sb->prepathlen = 0; @@ -2225,11 +2255,15 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, else tcon->unix_ext = 0; /* server does not support them */ + /* convert forward to back slashes in prepath here if needed */ + if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) == 0) + convert_delimiter(cifs_sb->prepath, + CIFS_DIR_SEP(cifs_sb)); + if ((tcon->unix_ext == 0) && (cifs_sb->rsize > (1024 * 127))) { cifs_sb->rsize = 1024 * 127; -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("no very large read support, rsize now 127K")); -#endif + cFYI(DBG2, + ("no very large read support, rsize now 127K")); } if (!(tcon->ses->capabilities & CAP_LARGE_WRITE_X)) cifs_sb->wsize = min(cifs_sb->wsize, diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index 699ec1198409..4e83b47c4b34 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -3,7 +3,7 @@ * * vfs operations that deal with dentries * - * Copyright (C) International Business Machines Corp., 2002,2007 + * Copyright (C) International Business Machines Corp., 2002,2008 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -111,16 +111,6 @@ cifs_bp_rename_retry: return full_path; } -/* char * build_wildcard_path_from_dentry(struct dentry *direntry) -{ - if(full_path == NULL) - return full_path; - - full_path[namelen] = '\\'; - full_path[namelen+1] = '*'; - full_path[namelen+2] = 0; -BB remove above eight lines BB */ - /* Inode operations in similar order to how they appear in Linux file fs.h */ int @@ -171,9 +161,8 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, disposition = FILE_OVERWRITE_IF; else if ((oflags & O_CREAT) == O_CREAT) disposition = FILE_OPEN_IF; - else { + else cFYI(1, ("Create flag not set in create function")); - } } /* BB add processing to set equivalent of mode - e.g. via CreateX with @@ -367,7 +356,7 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode, if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) { int oplock = 0; u16 fileHandle; - FILE_ALL_INFO * buf; + FILE_ALL_INFO *buf; cFYI(1, ("sfu compat create special file")); @@ -534,9 +523,8 @@ cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd) int isValid = 1; if (direntry->d_inode) { - if (cifs_revalidate(direntry)) { + if (cifs_revalidate(direntry)) return 0; - } } else { cFYI(1, ("neg dentry 0x%p name = %s", direntry, direntry->d_name.name)); diff --git a/fs/cifs/dns_resolve.h b/fs/cifs/dns_resolve.h index 073fdc3db419..966e9288930b 100644 --- a/fs/cifs/dns_resolve.h +++ b/fs/cifs/dns_resolve.h @@ -1,7 +1,7 @@ /* * fs/cifs/dns_resolve.h -- DNS Resolver upcall management for CIFS DFS * Handles host name to IP address resolution - * + * * Copyright (c) International Business Machines Corp., 2008 * Author(s): Steve French (sfrench@us.ibm.com) * diff --git a/fs/cifs/fcntl.c b/fs/cifs/fcntl.c index 995474c90885..7d1d5aa4c430 100644 --- a/fs/cifs/fcntl.c +++ b/fs/cifs/fcntl.c @@ -35,9 +35,8 @@ static __u32 convert_to_cifs_notify_flags(unsigned long fcntl_notify_flags) /* No way on Linux VFS to ask to monitor xattr changes (and no stream support either */ - if (fcntl_notify_flags & DN_ACCESS) { + if (fcntl_notify_flags & DN_ACCESS) cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_ACCESS; - } if (fcntl_notify_flags & DN_MODIFY) { /* What does this mean on directories? */ cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_WRITE | @@ -47,9 +46,8 @@ static __u32 convert_to_cifs_notify_flags(unsigned long fcntl_notify_flags) cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_CREATION | FILE_NOTIFY_CHANGE_LAST_WRITE; } - if (fcntl_notify_flags & DN_DELETE) { + if (fcntl_notify_flags & DN_DELETE) cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_WRITE; - } if (fcntl_notify_flags & DN_RENAME) { /* BB review this - checking various server behaviors */ cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_DIR_NAME | diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 5f7c374ae89c..fa849c91d323 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -353,9 +353,9 @@ static int cifs_reopen_file(struct file *file, int can_flush) int disposition = FILE_OPEN; __u16 netfid; - if (file->private_data) { + if (file->private_data) pCifsFile = (struct cifsFileInfo *)file->private_data; - } else + else return -EBADF; xid = GetXid(); @@ -499,9 +499,8 @@ int cifs_close(struct inode *inode, struct file *file) the struct would be in each open file, but this should give enough time to clear the socket */ -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("close delay, write pending")); -#endif /* DEBUG2 */ + cFYI(DBG2, + ("close delay, write pending")); msleep(timeout); timeout *= 4; } @@ -1423,9 +1422,8 @@ static int cifs_writepage(struct page *page, struct writeback_control *wbc) xid = GetXid(); /* BB add check for wbc flags */ page_cache_get(page); - if (!PageUptodate(page)) { + if (!PageUptodate(page)) cFYI(1, ("ppw - page not up to date")); - } /* * Set the "writeback" flag, and clear "dirty" in the radix tree. @@ -1460,9 +1458,9 @@ static int cifs_commit_write(struct file *file, struct page *page, cFYI(1, ("commit write for page %p up to position %lld for %d", page, position, to)); spin_lock(&inode->i_lock); - if (position > inode->i_size) { + if (position > inode->i_size) i_size_write(inode, position); - } + spin_unlock(&inode->i_lock); if (!PageUptodate(page)) { position = ((loff_t)page->index << PAGE_CACHE_SHIFT) + offset; @@ -1596,9 +1594,9 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data, } open_file = (struct cifsFileInfo *)file->private_data; - if ((file->f_flags & O_ACCMODE) == O_WRONLY) { + if ((file->f_flags & O_ACCMODE) == O_WRONLY) cFYI(1, ("attempting read on write only file instance")); - } + for (total_read = 0, current_offset = read_data; read_size > total_read; total_read += bytes_read, current_offset += bytes_read) { @@ -1625,9 +1623,8 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data, smb_read_data + 4 /* RFC1001 length field */ + le16_to_cpu(pSMBr->DataOffset), - bytes_read)) { + bytes_read)) rc = -EFAULT; - } if (buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(smb_read_data); @@ -1814,9 +1811,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, pTcon = cifs_sb->tcon; pagevec_init(&lru_pvec, 0); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("rpages: num pages %d", num_pages)); -#endif + cFYI(DBG2, ("rpages: num pages %d", num_pages)); for (i = 0; i < num_pages; ) { unsigned contig_pages; struct page *tmp_page; @@ -1849,10 +1844,8 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, /* Read size needs to be in multiples of one page */ read_size = min_t(const unsigned int, read_size, cifs_sb->rsize & PAGE_CACHE_MASK); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("rpages: read size 0x%x contiguous pages %d", + cFYI(DBG2, ("rpages: read size 0x%x contiguous pages %d", read_size, contig_pages)); -#endif rc = -EAGAIN; while (rc == -EAGAIN) { if ((open_file->invalidHandle) && @@ -2026,7 +2019,7 @@ int is_size_safe_to_change(struct cifsInodeInfo *cifsInode, __u64 end_of_file) struct cifs_sb_info *cifs_sb; cifs_sb = CIFS_SB(cifsInode->vfs_inode.i_sb); - if ( cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO ) { + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { /* since no page cache to corrupt on directio we can change size safely */ return 1; diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index b1a4a65eaa08..24eb4d392155 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -29,6 +29,130 @@ #include "cifs_debug.h" #include "cifs_fs_sb.h" + +static void cifs_set_ops(struct inode *inode) +{ + struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); + + switch (inode->i_mode & S_IFMT) { + case S_IFREG: + inode->i_op = &cifs_file_inode_ops; + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) + inode->i_fop = &cifs_file_direct_nobrl_ops; + else + inode->i_fop = &cifs_file_direct_ops; + } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) + inode->i_fop = &cifs_file_nobrl_ops; + else { /* not direct, send byte range locks */ + inode->i_fop = &cifs_file_ops; + } + + + /* check if server can support readpages */ + if (cifs_sb->tcon->ses->server->maxBuf < + PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE) + inode->i_data.a_ops = &cifs_addr_ops_smallbuf; + else + inode->i_data.a_ops = &cifs_addr_ops; + break; + case S_IFDIR: + inode->i_op = &cifs_dir_inode_ops; + inode->i_fop = &cifs_dir_ops; + break; + case S_IFLNK: + inode->i_op = &cifs_symlink_inode_ops; + break; + default: + init_special_inode(inode, inode->i_mode, inode->i_rdev); + break; + } +} + +static void cifs_unix_info_to_inode(struct inode *inode, + FILE_UNIX_BASIC_INFO *info, int force_uid_gid) +{ + struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); + struct cifsInodeInfo *cifsInfo = CIFS_I(inode); + __u64 num_of_bytes = le64_to_cpu(info->NumOfBytes); + __u64 end_of_file = le64_to_cpu(info->EndOfFile); + + inode->i_atime = cifs_NTtimeToUnix(le64_to_cpu(info->LastAccessTime)); + inode->i_mtime = + cifs_NTtimeToUnix(le64_to_cpu(info->LastModificationTime)); + inode->i_ctime = cifs_NTtimeToUnix(le64_to_cpu(info->LastStatusChange)); + inode->i_mode = le64_to_cpu(info->Permissions); + + /* + * Since we set the inode type below we need to mask off + * to avoid strange results if bits set above. + */ + inode->i_mode &= ~S_IFMT; + switch (le32_to_cpu(info->Type)) { + case UNIX_FILE: + inode->i_mode |= S_IFREG; + break; + case UNIX_SYMLINK: + inode->i_mode |= S_IFLNK; + break; + case UNIX_DIR: + inode->i_mode |= S_IFDIR; + break; + case UNIX_CHARDEV: + inode->i_mode |= S_IFCHR; + inode->i_rdev = MKDEV(le64_to_cpu(info->DevMajor), + le64_to_cpu(info->DevMinor) & MINORMASK); + break; + case UNIX_BLOCKDEV: + inode->i_mode |= S_IFBLK; + inode->i_rdev = MKDEV(le64_to_cpu(info->DevMajor), + le64_to_cpu(info->DevMinor) & MINORMASK); + break; + case UNIX_FIFO: + inode->i_mode |= S_IFIFO; + break; + case UNIX_SOCKET: + inode->i_mode |= S_IFSOCK; + break; + default: + /* safest to call it a file if we do not know */ + inode->i_mode |= S_IFREG; + cFYI(1, ("unknown type %d", le32_to_cpu(info->Type))); + break; + } + + if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) && + !force_uid_gid) + inode->i_uid = cifs_sb->mnt_uid; + else + inode->i_uid = le64_to_cpu(info->Uid); + + if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) && + !force_uid_gid) + inode->i_gid = cifs_sb->mnt_gid; + else + inode->i_gid = le64_to_cpu(info->Gid); + + inode->i_nlink = le64_to_cpu(info->Nlinks); + + spin_lock(&inode->i_lock); + if (is_size_safe_to_change(cifsInfo, end_of_file)) { + /* + * We can not safely change the file size here if the client + * is writing to it due to potential races. + */ + i_size_write(inode, end_of_file); + + /* + * i_blocks is not related to (i_size / i_blksize), + * but instead 512 byte (2**9) size is required for + * calculating num blocks. + */ + inode->i_blocks = (512 - 1 + num_of_bytes) >> 9; + } + spin_unlock(&inode->i_lock); +} + int cifs_get_inode_info_unix(struct inode **pinode, const unsigned char *search_path, struct super_block *sb, int xid) { @@ -74,7 +198,6 @@ int cifs_get_inode_info_unix(struct inode **pinode, } } else { struct cifsInodeInfo *cifsInfo; - __u32 type = le32_to_cpu(findData.Type); __u64 num_of_bytes = le64_to_cpu(findData.NumOfBytes); __u64 end_of_file = le64_to_cpu(findData.EndOfFile); @@ -105,112 +228,16 @@ int cifs_get_inode_info_unix(struct inode **pinode, /* this is ok to set on every inode revalidate */ atomic_set(&cifsInfo->inUse, 1); - inode->i_atime = - cifs_NTtimeToUnix(le64_to_cpu(findData.LastAccessTime)); - inode->i_mtime = - cifs_NTtimeToUnix(le64_to_cpu - (findData.LastModificationTime)); - inode->i_ctime = - cifs_NTtimeToUnix(le64_to_cpu(findData.LastStatusChange)); - inode->i_mode = le64_to_cpu(findData.Permissions); - /* since we set the inode type below we need to mask off - to avoid strange results if bits set above */ - inode->i_mode &= ~S_IFMT; - if (type == UNIX_FILE) { - inode->i_mode |= S_IFREG; - } else if (type == UNIX_SYMLINK) { - inode->i_mode |= S_IFLNK; - } else if (type == UNIX_DIR) { - inode->i_mode |= S_IFDIR; - } else if (type == UNIX_CHARDEV) { - inode->i_mode |= S_IFCHR; - inode->i_rdev = MKDEV(le64_to_cpu(findData.DevMajor), - le64_to_cpu(findData.DevMinor) & MINORMASK); - } else if (type == UNIX_BLOCKDEV) { - inode->i_mode |= S_IFBLK; - inode->i_rdev = MKDEV(le64_to_cpu(findData.DevMajor), - le64_to_cpu(findData.DevMinor) & MINORMASK); - } else if (type == UNIX_FIFO) { - inode->i_mode |= S_IFIFO; - } else if (type == UNIX_SOCKET) { - inode->i_mode |= S_IFSOCK; - } else { - /* safest to call it a file if we do not know */ - inode->i_mode |= S_IFREG; - cFYI(1, ("unknown type %d", type)); - } + cifs_unix_info_to_inode(inode, &findData, 0); - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) - inode->i_uid = cifs_sb->mnt_uid; - else - inode->i_uid = le64_to_cpu(findData.Uid); - - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) - inode->i_gid = cifs_sb->mnt_gid; - else - inode->i_gid = le64_to_cpu(findData.Gid); - - inode->i_nlink = le64_to_cpu(findData.Nlinks); - - spin_lock(&inode->i_lock); - if (is_size_safe_to_change(cifsInfo, end_of_file)) { - /* can not safely change the file size here if the - client is writing to it due to potential races */ - i_size_write(inode, end_of_file); - - /* blksize needs to be multiple of two. So safer to default to - blksize and blkbits set in superblock so 2**blkbits and blksize - will match rather than setting to: - (pTcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFE00;*/ - - /* This seems incredibly stupid but it turns out that i_blocks - is not related to (i_size / i_blksize), instead 512 byte size - is required for calculating num blocks */ - - /* 512 bytes (2**9) is the fake blocksize that must be used */ - /* for this calculation */ - inode->i_blocks = (512 - 1 + num_of_bytes) >> 9; - } - spin_unlock(&inode->i_lock); if (num_of_bytes < end_of_file) cFYI(1, ("allocation size less than end of file")); cFYI(1, ("Size %ld and blocks %llu", (unsigned long) inode->i_size, (unsigned long long)inode->i_blocks)); - if (S_ISREG(inode->i_mode)) { - cFYI(1, ("File inode")); - inode->i_op = &cifs_file_inode_ops; - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) - inode->i_fop = - &cifs_file_direct_nobrl_ops; - else - inode->i_fop = &cifs_file_direct_ops; - } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) - inode->i_fop = &cifs_file_nobrl_ops; - else /* not direct, send byte range locks */ - inode->i_fop = &cifs_file_ops; - - /* check if server can support readpages */ - if (pTcon->ses->server->maxBuf < - PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE) - inode->i_data.a_ops = &cifs_addr_ops_smallbuf; - else - inode->i_data.a_ops = &cifs_addr_ops; - } else if (S_ISDIR(inode->i_mode)) { - cFYI(1, ("Directory inode")); - inode->i_op = &cifs_dir_inode_ops; - inode->i_fop = &cifs_dir_ops; - } else if (S_ISLNK(inode->i_mode)) { - cFYI(1, ("Symbolic Link inode")); - inode->i_op = &cifs_symlink_inode_ops; - /* tmp_inode->i_fop = */ /* do not need to set to anything */ - } else { - cFYI(1, ("Init special inode")); - init_special_inode(inode, inode->i_mode, - inode->i_rdev); - } + + cifs_set_ops(inode); } return rc; } @@ -490,9 +517,9 @@ int cifs_get_inode_info(struct inode **pinode, if (decode_sfu_inode(inode, le64_to_cpu(pfindData->EndOfFile), search_path, - cifs_sb, xid)) { + cifs_sb, xid)) cFYI(1, ("Unrecognized sfu inode type")); - } + cFYI(1, ("sfu mode 0%o", inode->i_mode)); } else { inode->i_mode |= S_IFREG; @@ -546,36 +573,7 @@ int cifs_get_inode_info(struct inode **pinode, atomic_set(&cifsInfo->inUse, 1); } - if (S_ISREG(inode->i_mode)) { - cFYI(1, ("File inode")); - inode->i_op = &cifs_file_inode_ops; - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) - inode->i_fop = - &cifs_file_direct_nobrl_ops; - else - inode->i_fop = &cifs_file_direct_ops; - } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) - inode->i_fop = &cifs_file_nobrl_ops; - else /* not direct, send byte range locks */ - inode->i_fop = &cifs_file_ops; - - if (pTcon->ses->server->maxBuf < - PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE) - inode->i_data.a_ops = &cifs_addr_ops_smallbuf; - else - inode->i_data.a_ops = &cifs_addr_ops; - } else if (S_ISDIR(inode->i_mode)) { - cFYI(1, ("Directory inode")); - inode->i_op = &cifs_dir_inode_ops; - inode->i_fop = &cifs_dir_ops; - } else if (S_ISLNK(inode->i_mode)) { - cFYI(1, ("Symbolic Link inode")); - inode->i_op = &cifs_symlink_inode_ops; - } else { - init_special_inode(inode, inode->i_mode, - inode->i_rdev); - } + cifs_set_ops(inode); } kfree(buf); return rc; @@ -792,17 +790,12 @@ psx_del_no_retry: } static void posix_fill_in_inode(struct inode *tmp_inode, - FILE_UNIX_BASIC_INFO *pData, int *pobject_type, int isNewInode) + FILE_UNIX_BASIC_INFO *pData, int isNewInode) { + struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode); loff_t local_size; struct timespec local_mtime; - struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode); - struct cifs_sb_info *cifs_sb = CIFS_SB(tmp_inode->i_sb); - - __u32 type = le32_to_cpu(pData->Type); - __u64 num_of_bytes = le64_to_cpu(pData->NumOfBytes); - __u64 end_of_file = le64_to_cpu(pData->EndOfFile); cifsInfo->time = jiffies; atomic_inc(&cifsInfo->inUse); @@ -810,115 +803,27 @@ static void posix_fill_in_inode(struct inode *tmp_inode, local_mtime = tmp_inode->i_mtime; local_size = tmp_inode->i_size; - tmp_inode->i_atime = - cifs_NTtimeToUnix(le64_to_cpu(pData->LastAccessTime)); - tmp_inode->i_mtime = - cifs_NTtimeToUnix(le64_to_cpu(pData->LastModificationTime)); - tmp_inode->i_ctime = - cifs_NTtimeToUnix(le64_to_cpu(pData->LastStatusChange)); - - tmp_inode->i_mode = le64_to_cpu(pData->Permissions); - /* since we set the inode type below we need to mask off type - to avoid strange results if bits above were corrupt */ - tmp_inode->i_mode &= ~S_IFMT; - if (type == UNIX_FILE) { - *pobject_type = DT_REG; - tmp_inode->i_mode |= S_IFREG; - } else if (type == UNIX_SYMLINK) { - *pobject_type = DT_LNK; - tmp_inode->i_mode |= S_IFLNK; - } else if (type == UNIX_DIR) { - *pobject_type = DT_DIR; - tmp_inode->i_mode |= S_IFDIR; - } else if (type == UNIX_CHARDEV) { - *pobject_type = DT_CHR; - tmp_inode->i_mode |= S_IFCHR; - tmp_inode->i_rdev = MKDEV(le64_to_cpu(pData->DevMajor), - le64_to_cpu(pData->DevMinor) & MINORMASK); - } else if (type == UNIX_BLOCKDEV) { - *pobject_type = DT_BLK; - tmp_inode->i_mode |= S_IFBLK; - tmp_inode->i_rdev = MKDEV(le64_to_cpu(pData->DevMajor), - le64_to_cpu(pData->DevMinor) & MINORMASK); - } else if (type == UNIX_FIFO) { - *pobject_type = DT_FIFO; - tmp_inode->i_mode |= S_IFIFO; - } else if (type == UNIX_SOCKET) { - *pobject_type = DT_SOCK; - tmp_inode->i_mode |= S_IFSOCK; - } else { - /* safest to just call it a file */ - *pobject_type = DT_REG; - tmp_inode->i_mode |= S_IFREG; - cFYI(1, ("unknown inode type %d", type)); - } - -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("object type: %d", type)); -#endif - tmp_inode->i_uid = le64_to_cpu(pData->Uid); - tmp_inode->i_gid = le64_to_cpu(pData->Gid); - tmp_inode->i_nlink = le64_to_cpu(pData->Nlinks); - - spin_lock(&tmp_inode->i_lock); - if (is_size_safe_to_change(cifsInfo, end_of_file)) { - /* can not safely change the file size here if the - client is writing to it due to potential races */ - i_size_write(tmp_inode, end_of_file); + cifs_unix_info_to_inode(tmp_inode, pData, 1); + cifs_set_ops(tmp_inode); - /* 512 bytes (2**9) is the fake blocksize that must be used */ - /* for this calculation, not the real blocksize */ - tmp_inode->i_blocks = (512 - 1 + num_of_bytes) >> 9; - } - spin_unlock(&tmp_inode->i_lock); - - if (S_ISREG(tmp_inode->i_mode)) { - cFYI(1, ("File inode")); - tmp_inode->i_op = &cifs_file_inode_ops; - - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) - tmp_inode->i_fop = &cifs_file_direct_nobrl_ops; - else - tmp_inode->i_fop = &cifs_file_direct_ops; + if (!S_ISREG(tmp_inode->i_mode)) + return; - } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) - tmp_inode->i_fop = &cifs_file_nobrl_ops; - else - tmp_inode->i_fop = &cifs_file_ops; - - if ((cifs_sb->tcon) && (cifs_sb->tcon->ses) && - (cifs_sb->tcon->ses->server->maxBuf < - PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)) - tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf; - else - tmp_inode->i_data.a_ops = &cifs_addr_ops; - - if (isNewInode) - return; /* No sense invalidating pages for new inode - since we we have not started caching - readahead file data yet */ + /* + * No sense invalidating pages for new inode + * since we we have not started caching + * readahead file data yet. + */ + if (isNewInode) + return; - if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) && - (local_size == tmp_inode->i_size)) { - cFYI(1, ("inode exists but unchanged")); - } else { - /* file may have changed on server */ - cFYI(1, ("invalidate inode, readdir detected change")); - invalidate_remote_inode(tmp_inode); - } - } else if (S_ISDIR(tmp_inode->i_mode)) { - cFYI(1, ("Directory inode")); - tmp_inode->i_op = &cifs_dir_inode_ops; - tmp_inode->i_fop = &cifs_dir_ops; - } else if (S_ISLNK(tmp_inode->i_mode)) { - cFYI(1, ("Symbolic Link inode")); - tmp_inode->i_op = &cifs_symlink_inode_ops; -/* tmp_inode->i_fop = *//* do not need to set to anything */ + if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) && + (local_size == tmp_inode->i_size)) { + cFYI(1, ("inode exists but unchanged")); } else { - cFYI(1, ("Special inode")); - init_special_inode(tmp_inode, tmp_inode->i_mode, - tmp_inode->i_rdev); + /* file may have changed on server */ + cFYI(1, ("invalidate inode, readdir detected change")); + invalidate_remote_inode(tmp_inode); } } @@ -968,7 +873,6 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) cFYI(1, ("posix mkdir returned 0x%x", rc)); d_drop(direntry); } else { - int obj_type; if (pInfo->Type == cpu_to_le32(-1)) { /* no return info, go query for it */ kfree(pInfo); @@ -1004,7 +908,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) /* we already checked in POSIXCreate whether frame was long enough */ posix_fill_in_inode(direntry->d_inode, - pInfo, &obj_type, 1 /* NewInode */); + pInfo, 1 /* NewInode */); #ifdef CONFIG_CIFS_DEBUG2 cFYI(1, ("instantiated dentry %p %s to inode %p", direntry, direntry->d_name.name, newinode)); @@ -1214,9 +1118,8 @@ int cifs_rename(struct inode *source_inode, struct dentry *source_direntry, } /* if we can not get memory just leave rc as EEXIST */ } - if (rc) { + if (rc) cFYI(1, ("rename rc %d", rc)); - } if ((rc == -EIO) || (rc == -EEXIST)) { int oplock = FALSE; diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c index d24fe6880a04..5c792df13d62 100644 --- a/fs/cifs/ioctl.c +++ b/fs/cifs/ioctl.c @@ -30,7 +30,7 @@ #define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2) -int cifs_ioctl (struct inode *inode, struct file *filep, +int cifs_ioctl(struct inode *inode, struct file *filep, unsigned int command, unsigned long arg) { int rc = -ENOTTY; /* strange error - but the precedent */ diff --git a/fs/cifs/md4.c b/fs/cifs/md4.c index a2415c1a14db..a725c2609d67 100644 --- a/fs/cifs/md4.c +++ b/fs/cifs/md4.c @@ -56,7 +56,7 @@ lshift(__u32 x, int s) /* this applies md4 to 64 byte chunks */ static void -mdfour64(__u32 * M, __u32 * A, __u32 *B, __u32 * C, __u32 *D) +mdfour64(__u32 *M, __u32 *A, __u32 *B, __u32 *C, __u32 *D) { int j; __u32 AA, BB, CC, DD; @@ -137,7 +137,7 @@ mdfour64(__u32 * M, __u32 * A, __u32 *B, __u32 * C, __u32 *D) } static void -copy64(__u32 * M, unsigned char *in) +copy64(__u32 *M, unsigned char *in) { int i; diff --git a/fs/cifs/md5.c b/fs/cifs/md5.c index f13f96d42fcf..462bbfefd4b6 100644 --- a/fs/cifs/md5.c +++ b/fs/cifs/md5.c @@ -161,7 +161,7 @@ MD5Final(unsigned char digest[16], struct MD5Context *ctx) /* This is the central step in the MD5 algorithm. */ #define MD5STEP(f, w, x, y, z, data, s) \ - ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x ) + (w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x) /* * The core of the MD5 algorithm, this alters an existing MD5 hash to @@ -302,9 +302,8 @@ hmac_md5_init_limK_to_64(const unsigned char *key, int key_len, int i; /* if key is longer than 64 bytes truncate it */ - if (key_len > 64) { + if (key_len > 64) key_len = 64; - } /* start out by storing key in pads */ memset(ctx->k_ipad, 0, sizeof(ctx->k_ipad)); @@ -359,9 +358,9 @@ hmac_md5(unsigned char key[16], unsigned char *data, int data_len, { struct HMACMD5Context ctx; hmac_md5_init_limK_to_64(key, 16, &ctx); - if (data_len != 0) { + if (data_len != 0) hmac_md5_update(data, data_len, &ctx); - } + hmac_md5_final(digest, &ctx); } #endif diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c index 15546c2354c5..2a42d9fedbb2 100644 --- a/fs/cifs/misc.c +++ b/fs/cifs/misc.c @@ -1,7 +1,7 @@ /* * fs/cifs/misc.c * - * Copyright (C) International Business Machines Corp., 2002,2007 + * Copyright (C) International Business Machines Corp., 2002,2008 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -320,9 +320,9 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ , if (treeCon->ses) { if (treeCon->ses->capabilities & CAP_UNICODE) buffer->Flags2 |= SMBFLG2_UNICODE; - if (treeCon->ses->capabilities & CAP_STATUS32) { + if (treeCon->ses->capabilities & CAP_STATUS32) buffer->Flags2 |= SMBFLG2_ERR_STATUS; - } + /* Uid is not converted */ buffer->Uid = treeCon->ses->Suid; buffer->Mid = GetNextMid(treeCon->ses->server); @@ -610,7 +610,8 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length) buffer = (unsigned char *) smb_buf; for (i = 0, j = 0; i < smb_buf_length; i++, j++) { - if (i % 8 == 0) { /* have reached the beginning of line */ + if (i % 8 == 0) { + /* have reached the beginning of line */ printk(KERN_DEBUG "| "); j = 0; } @@ -621,7 +622,8 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length) else debug_line[1 + (2 * j)] = '_'; - if (i % 8 == 7) { /* reached end of line, time to print ascii */ + if (i % 8 == 7) { + /* reached end of line, time to print ascii */ debug_line[16] = 0; printk(" | %s\n", debug_line); } @@ -631,7 +633,7 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length) debug_line[2 * j] = ' '; debug_line[1 + (2 * j)] = ' '; } - printk( " | %s\n", debug_line); + printk(" | %s\n", debug_line); return; } diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index 646e1f06941b..3b5a5ce882b6 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -1,7 +1,7 @@ /* * fs/cifs/netmisc.c * - * Copyright (c) International Business Machines Corp., 2002 + * Copyright (c) International Business Machines Corp., 2002,2008 * Author(s): Steve French (sfrench@us.ibm.com) * * Error mapping routines from Samba libsmb/errormap.c @@ -150,9 +150,7 @@ static int canonicalize_unc(char *cp) if (cp[i] == '\\') break; if (cp[i] == '/') { -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("change slash to backslash in malformed UNC")); -#endif + cFYI(DBG2, ("change slash to \\ in malformed UNC")); cp[i] = '\\'; return 1; } @@ -178,9 +176,7 @@ cifs_inet_pton(int address_family, char *cp, void *dst) } else if (address_family == AF_INET6) { ret = in6_pton(cp, -1 /* len */, dst , '\\', NULL); } -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("address conversion returned %d for %s", ret, cp)); -#endif + cFYI(DBG2, ("address conversion returned %d for %s", ret, cp)); if (ret > 0) ret = 1; return ret; @@ -253,7 +249,8 @@ static const struct { ERRDOS, 87, NT_STATUS_INVALID_PARAMETER_MIX}, { ERRHRD, ERRgeneral, NT_STATUS_INVALID_QUOTA_LOWER}, { ERRHRD, ERRgeneral, NT_STATUS_DISK_CORRUPT_ERROR}, { - ERRDOS, ERRbadfile, NT_STATUS_OBJECT_NAME_INVALID}, { /* mapping changed since shell does lookup on * and expects file not found */ + /* mapping changed since shell does lookup on * expects FileNotFound */ + ERRDOS, ERRbadfile, NT_STATUS_OBJECT_NAME_INVALID}, { ERRDOS, ERRbadfile, NT_STATUS_OBJECT_NAME_NOT_FOUND}, { ERRDOS, ERRalreadyexists, NT_STATUS_OBJECT_NAME_COLLISION}, { ERRHRD, ERRgeneral, NT_STATUS_HANDLE_NOT_WAITABLE}, { @@ -820,7 +817,8 @@ map_smb_to_linux_error(struct smb_hdr *smb, int logErr) /* old style errors */ /* DOS class smb error codes - map DOS */ - if (smberrclass == ERRDOS) { /* 1 byte field no need to byte reverse */ + if (smberrclass == ERRDOS) { + /* 1 byte field no need to byte reverse */ for (i = 0; i < sizeof(mapping_table_ERRDOS) / @@ -834,7 +832,8 @@ map_smb_to_linux_error(struct smb_hdr *smb, int logErr) } /* else try next error mapping one to see if match */ } - } else if (smberrclass == ERRSRV) { /* server class of error codes */ + } else if (smberrclass == ERRSRV) { + /* server class of error codes */ for (i = 0; i < sizeof(mapping_table_ERRSRV) / @@ -922,8 +921,8 @@ struct timespec cnvrtDosUnixTm(__u16 date, __u16 time) { struct timespec ts; int sec, min, days, month, year; - SMB_TIME * st = (SMB_TIME *)&time; - SMB_DATE * sd = (SMB_DATE *)&date; + SMB_TIME *st = (SMB_TIME *)&time; + SMB_DATE *sd = (SMB_DATE *)&date; cFYI(1, ("date %d time %d", date, time)); diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index 0f22def4bdff..32b445edc882 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -3,7 +3,7 @@ * * Directory search handling * - * Copyright (C) International Business Machines Corp., 2004, 2007 + * Copyright (C) International Business Machines Corp., 2004, 2008 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -42,17 +42,18 @@ static void dump_cifs_file_struct(struct file *file, char *label) cFYI(1, ("empty cifs private file data")); return; } - if (cf->invalidHandle) { + if (cf->invalidHandle) cFYI(1, ("invalid handle")); - } - if (cf->srch_inf.endOfSearch) { + if (cf->srch_inf.endOfSearch) cFYI(1, ("end of search")); - } - if (cf->srch_inf.emptyDir) { + if (cf->srch_inf.emptyDir) cFYI(1, ("empty dir")); - } } } +#else +static inline void dump_cifs_file_struct(struct file *file, char *label) +{ +} #endif /* DEBUG2 */ /* Returns one if new inode created (which therefore needs to be hashed) */ @@ -150,7 +151,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime)); } else { /* legacy, OS2 and DOS style */ /* struct timespec ts;*/ - FIND_FILE_STANDARD_INFO * pfindData = + FIND_FILE_STANDARD_INFO *pfindData = (FIND_FILE_STANDARD_INFO *)buf; tmp_inode->i_mtime = cnvrtDosUnixTm( @@ -198,9 +199,8 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, if (attr & ATTR_DIRECTORY) { *pobject_type = DT_DIR; /* override default perms since we do not lock dirs */ - if (atomic_read(&cifsInfo->inUse) == 0) { + if (atomic_read(&cifsInfo->inUse) == 0) tmp_inode->i_mode = cifs_sb->mnt_dir_mode; - } tmp_inode->i_mode |= S_IFDIR; } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) && (attr & ATTR_SYSTEM)) { @@ -231,9 +231,8 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, } /* could add code here - to validate if device or weird share type? */ /* can not fill in nlink here as in qpathinfo version and Unx search */ - if (atomic_read(&cifsInfo->inUse) == 0) { + if (atomic_read(&cifsInfo->inUse) == 0) atomic_set(&cifsInfo->inUse, 1); - } spin_lock(&tmp_inode->i_lock); if (is_size_safe_to_change(cifsInfo, end_of_file)) { @@ -461,9 +460,8 @@ static int initiate_cifs_search(const int xid, struct file *file) full_path = build_path_from_dentry(file->f_path.dentry); - if (full_path == NULL) { + if (full_path == NULL) return -ENOMEM; - } cFYI(1, ("Full path: %s start at: %lld", full_path, file->f_pos)); @@ -471,9 +469,9 @@ ffirst_retry: /* test for Unix extensions */ /* but now check for them on the share/mount not on the SMB session */ /* if (pTcon->ses->capabilities & CAP_UNIX) { */ - if (pTcon->unix_ext) { + if (pTcon->unix_ext) cifsFile->srch_inf.info_level = SMB_FIND_FILE_UNIX; - } else if ((pTcon->ses->capabilities & + else if ((pTcon->ses->capabilities & (CAP_NT_SMBS | CAP_NT_FIND)) == 0) { cifsFile->srch_inf.info_level = SMB_FIND_FILE_INFO_STANDARD; } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { @@ -514,10 +512,10 @@ static int cifs_unicode_bytelen(char *str) static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level) { char *new_entry; - FILE_DIRECTORY_INFO * pDirInfo = (FILE_DIRECTORY_INFO *)old_entry; + FILE_DIRECTORY_INFO *pDirInfo = (FILE_DIRECTORY_INFO *)old_entry; if (level == SMB_FIND_FILE_INFO_STANDARD) { - FIND_FILE_STANDARD_INFO * pfData; + FIND_FILE_STANDARD_INFO *pfData; pfData = (FIND_FILE_STANDARD_INFO *)pDirInfo; new_entry = old_entry + sizeof(FIND_FILE_STANDARD_INFO) + @@ -553,7 +551,7 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) int len = 0; if (cfile->srch_inf.info_level == SMB_FIND_FILE_UNIX) { - FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry; + FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry; filename = &pFindData->FileName[0]; if (cfile->srch_inf.unicode) { len = cifs_unicode_bytelen(filename); @@ -562,30 +560,30 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) len = strnlen(filename, 5); } } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_DIRECTORY_INFO) { - FILE_DIRECTORY_INFO * pFindData = + FILE_DIRECTORY_INFO *pFindData = (FILE_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { - FILE_FULL_DIRECTORY_INFO * pFindData = + FILE_FULL_DIRECTORY_INFO *pFindData = (FILE_FULL_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { - SEARCH_ID_FULL_DIR_INFO * pFindData = + SEARCH_ID_FULL_DIR_INFO *pFindData = (SEARCH_ID_FULL_DIR_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { - FILE_BOTH_DIRECTORY_INFO * pFindData = + FILE_BOTH_DIRECTORY_INFO *pFindData = (FILE_BOTH_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD) { - FIND_FILE_STANDARD_INFO * pFindData = + FIND_FILE_STANDARD_INFO *pFindData = (FIND_FILE_STANDARD_INFO *)current_entry; filename = &pFindData->FileName[0]; len = pFindData->FileNameLength; @@ -666,9 +664,7 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, . and .. for the root of a drive and for those we need to start two entries earlier */ -#ifdef CONFIG_CIFS_DEBUG2 dump_cifs_file_struct(file, "In fce "); -#endif if (((index_to_find < cifsFile->srch_inf.index_of_last_entry) && is_dir_changed(file)) || (index_to_find < first_entry_in_buffer)) { @@ -718,7 +714,7 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, pos_in_buf = index_to_find - first_entry_in_buffer; cFYI(1, ("found entry - pos_in_buf %d", pos_in_buf)); - for (i=0; (i < (pos_in_buf)) && (current_entry != NULL); i++) { + for (i = 0; (i < (pos_in_buf)) && (current_entry != NULL); i++) { /* go entry by entry figuring out which is first */ current_entry = nxt_dir_entry(current_entry, end_of_smb, cifsFile->srch_inf.info_level); @@ -793,7 +789,7 @@ static int cifs_get_name_from_search_buf(struct qstr *pqst, filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (level == SMB_FIND_FILE_INFO_STANDARD) { - FIND_FILE_STANDARD_INFO * pFindData = + FIND_FILE_STANDARD_INFO *pFindData = (FIND_FILE_STANDARD_INFO *)current_entry; filename = &pFindData->FileName[0]; /* one byte length, no name conversion */ @@ -928,7 +924,7 @@ static int cifs_save_resume_key(const char *current_entry, level = cifsFile->srch_inf.info_level; if (level == SMB_FIND_FILE_UNIX) { - FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry; + FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry; filename = &pFindData->FileName[0]; if (cifsFile->srch_inf.unicode) { diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index d2153abcba6d..ed150efbe27c 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -417,10 +417,6 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, calc_lanman_hash(ses, lnm_session_key); ses->flags |= CIFS_SES_LANMAN; -/* #ifdef CONFIG_CIFS_DEBUG2 - cifs_dump_mem("cryptkey: ",ses->server->cryptKey, - CIFS_SESS_KEY_SIZE); -#endif */ memcpy(bcc_ptr, (char *)lnm_session_key, CIFS_SESS_KEY_SIZE); bcc_ptr += CIFS_SESS_KEY_SIZE; diff --git a/fs/cifs/smbdes.c b/fs/cifs/smbdes.c index cfa6d21fb4e8..04943c976f98 100644 --- a/fs/cifs/smbdes.c +++ b/fs/cifs/smbdes.c @@ -114,42 +114,42 @@ static uchar sbox[8][4][16] = { {{14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7}, {0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8}, {4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0}, - {15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13}}, + {15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13} }, {{15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10}, {3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5}, {0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15}, - {13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9}}, + {13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9} }, {{10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8}, {13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1}, {13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7}, - {1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12}}, + {1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12} }, {{7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15}, {13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9}, {10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4}, - {3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14}}, + {3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14} }, {{2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9}, {14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6}, {4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14}, - {11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3}}, + {11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3} }, {{12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11}, {10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8}, {9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6}, - {4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13}}, + {4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13} }, {{4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1}, {13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6}, {1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2}, - {6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12}}, + {6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12} }, {{13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7}, {1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2}, {7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8}, - {2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11}} + {2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11} } }; static void @@ -313,9 +313,8 @@ str_to_key(unsigned char *str, unsigned char *key) key[5] = ((str[4] & 0x1F) << 2) | (str[5] >> 6); key[6] = ((str[5] & 0x3F) << 1) | (str[6] >> 7); key[7] = str[6] & 0x7F; - for (i = 0; i < 8; i++) { + for (i = 0; i < 8; i++) key[i] = (key[i] << 1); - } } static void @@ -344,9 +343,8 @@ smbhash(unsigned char *out, unsigned char *in, unsigned char *key, int forw) dohash(outb, inb, keyb, forw); - for (i = 0; i < 8; i++) { + for (i = 0; i < 8; i++) out[i] = 0; - } for (i = 0; i < 64; i++) { if (outb[i]) diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 50b623ad9320..3612d6c0a0bb 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -1,7 +1,7 @@ /* * fs/cifs/transport.c * - * Copyright (C) International Business Machines Corp., 2002,2007 + * Copyright (C) International Business Machines Corp., 2002,2008 * Author(s): Steve French (sfrench@us.ibm.com) * Jeremy Allison (jra@samba.org) 2006. * @@ -358,9 +358,9 @@ static int allocate_mid(struct cifsSesInfo *ses, struct smb_hdr *in_buf, } else if (ses->status != CifsGood) { /* check if SMB session is bad because we are setting it up */ if ((in_buf->Command != SMB_COM_SESSION_SETUP_ANDX) && - (in_buf->Command != SMB_COM_NEGOTIATE)) { + (in_buf->Command != SMB_COM_NEGOTIATE)) return -EAGAIN; - } /* else ok - we are setting up session */ + /* else ok - we are setting up session */ } *ppmidQ = AllocMidQEntry(in_buf, ses); if (*ppmidQ == NULL) @@ -437,9 +437,8 @@ SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses, iov[0].iov_len = in_buf->smb_buf_length + 4; flags |= CIFS_NO_RESP; rc = SendReceive2(xid, ses, iov, 1, &resp_buf_type, flags); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("SendRcvNoR flags %d rc %d", flags, rc)); -#endif + cFYI(DBG2, ("SendRcvNoRsp flags %d rc %d", flags, rc)); + return rc; } diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c index 54e8ef96cb79..8cd6a445b017 100644 --- a/fs/cifs/xattr.c +++ b/fs/cifs/xattr.c @@ -139,9 +139,9 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name, } else if (strncmp(ea_name, CIFS_XATTR_USER_PREFIX, 5) == 0) { if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) goto set_ea_exit; - if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0) { + if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0) cFYI(1, ("attempt to set cifs inode metadata")); - } + ea_name += 5; /* skip past user. prefix */ rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, ea_value, (__u16)value_size, cifs_sb->local_nls, @@ -262,7 +262,7 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); #ifdef CONFIG_CIFS_EXPERIMENTAL - else if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { + else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { __u16 fid; int oplock = FALSE; struct cifs_ntsd *pacl = NULL; @@ -303,11 +303,10 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name, } else if (strncmp(ea_name, CIFS_XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) == 0) { cFYI(1, ("Security xattr namespace not supported yet")); - } else { + } else cFYI(1, ("illegal xattr request %s (only user namespace supported)", ea_name)); - } /* We could add an additional check for streams ie if proc/fs/cifs/streamstoxattr is set then diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index d26e2826ba5b..e9602d85c11d 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -29,10 +29,6 @@ #define DEBUGFS_MAGIC 0x64626720 -/* declared over in file.c */ -extern struct file_operations debugfs_file_operations; -extern struct inode_operations debugfs_link_operations; - static struct vfsmount *debugfs_mount; static int debugfs_mount_count; diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c index dc74b186145d..6df1debdccce 100644 --- a/fs/ecryptfs/mmap.c +++ b/fs/ecryptfs/mmap.c @@ -263,52 +263,102 @@ out: return 0; } -/* This function must zero any hole we create */ +/** + * ecryptfs_prepare_write + * @file: The eCryptfs file + * @page: The eCryptfs page + * @from: The start byte from which we will write + * @to: The end byte to which we will write + * + * This function must zero any hole we create + * + * Returns zero on success; non-zero otherwise + */ static int ecryptfs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to) { - int rc = 0; loff_t prev_page_end_size; + int rc = 0; if (!PageUptodate(page)) { - rc = ecryptfs_read_lower_page_segment(page, page->index, 0, - PAGE_CACHE_SIZE, - page->mapping->host); - if (rc) { - printk(KERN_ERR "%s: Error attemping to read lower " - "page segment; rc = [%d]\n", __FUNCTION__, rc); - ClearPageUptodate(page); - goto out; - } else + struct ecryptfs_crypt_stat *crypt_stat = + &ecryptfs_inode_to_private( + file->f_path.dentry->d_inode)->crypt_stat; + + if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED) + || (crypt_stat->flags & ECRYPTFS_NEW_FILE)) { + rc = ecryptfs_read_lower_page_segment( + page, page->index, 0, PAGE_CACHE_SIZE, + page->mapping->host); + if (rc) { + printk(KERN_ERR "%s: Error attemping to read " + "lower page segment; rc = [%d]\n", + __FUNCTION__, rc); + ClearPageUptodate(page); + goto out; + } else + SetPageUptodate(page); + } else if (crypt_stat->flags & ECRYPTFS_VIEW_AS_ENCRYPTED) { + if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR) { + rc = ecryptfs_copy_up_encrypted_with_header( + page, crypt_stat); + if (rc) { + printk(KERN_ERR "%s: Error attempting " + "to copy the encrypted content " + "from the lower file whilst " + "inserting the metadata from " + "the xattr into the header; rc " + "= [%d]\n", __FUNCTION__, rc); + ClearPageUptodate(page); + goto out; + } + SetPageUptodate(page); + } else { + rc = ecryptfs_read_lower_page_segment( + page, page->index, 0, PAGE_CACHE_SIZE, + page->mapping->host); + if (rc) { + printk(KERN_ERR "%s: Error reading " + "page; rc = [%d]\n", + __FUNCTION__, rc); + ClearPageUptodate(page); + goto out; + } + SetPageUptodate(page); + } + } else { + rc = ecryptfs_decrypt_page(page); + if (rc) { + printk(KERN_ERR "%s: Error decrypting page " + "at index [%ld]; rc = [%d]\n", + __FUNCTION__, page->index, rc); + ClearPageUptodate(page); + goto out; + } SetPageUptodate(page); + } } - prev_page_end_size = ((loff_t)page->index << PAGE_CACHE_SHIFT); - - /* - * If creating a page or more of holes, zero them out via truncate. - * Note, this will increase i_size. - */ + /* If creating a page or more of holes, zero them out via truncate. + * Note, this will increase i_size. */ if (page->index != 0) { if (prev_page_end_size > i_size_read(page->mapping->host)) { rc = ecryptfs_truncate(file->f_path.dentry, prev_page_end_size); if (rc) { - printk(KERN_ERR "Error on attempt to " + printk(KERN_ERR "%s: Error on attempt to " "truncate to (higher) offset [%lld];" - " rc = [%d]\n", prev_page_end_size, rc); + " rc = [%d]\n", __FUNCTION__, + prev_page_end_size, rc); goto out; } } } - /* - * Writing to a new page, and creating a small hole from start of page? - * Zero it out. - */ - if ((i_size_read(page->mapping->host) == prev_page_end_size) && - (from != 0)) { + /* Writing to a new page, and creating a small hole from start + * of page? Zero it out. */ + if ((i_size_read(page->mapping->host) == prev_page_end_size) + && (from != 0)) zero_user(page, 0, PAGE_CACHE_SIZE); - } out: return rc; } diff --git a/fs/exec.c b/fs/exec.c index a44b142fb460..54a0a557b678 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -173,8 +173,15 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, return NULL; if (write) { - struct rlimit *rlim = current->signal->rlim; unsigned long size = bprm->vma->vm_end - bprm->vma->vm_start; + struct rlimit *rlim; + + /* + * We've historically supported up to 32 pages (ARG_MAX) + * of argument strings even with small stacks + */ + if (size <= ARG_MAX) + return page; /* * Limit to 1/4-th the stack size for the argv+env strings. @@ -183,6 +190,7 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, * - the program will have a reasonable amount of stack left * to work from. */ + rlim = current->signal->rlim; if (size > rlim[RLIMIT_STACK].rlim_cur / 4) { put_page(page); return NULL; diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 18769cc32377..ad5360664082 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -806,8 +806,8 @@ static match_table_t tokens = { {Opt_quota, "quota"}, {Opt_usrquota, "usrquota"}, {Opt_barrier, "barrier=%u"}, - {Opt_err, NULL}, {Opt_resize, "resize"}, + {Opt_err, NULL}, }; static ext3_fsblk_t get_sb_block(void **data) diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c index 33888bb58144..2c23bade9aa6 100644 --- a/fs/ext4/dir.c +++ b/fs/ext4/dir.c @@ -46,7 +46,7 @@ const struct file_operations ext4_dir_operations = { #ifdef CONFIG_COMPAT .compat_ioctl = ext4_compat_ioctl, #endif - .fsync = ext4_sync_file, /* BKL held */ + .fsync = ext4_sync_file, .release = ext4_release_dir, }; diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index bc7081f1fbe8..9ae6e67090cd 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -148,6 +148,7 @@ static ext4_fsblk_t ext4_ext_find_goal(struct inode *inode, { struct ext4_inode_info *ei = EXT4_I(inode); ext4_fsblk_t bg_start; + ext4_fsblk_t last_block; ext4_grpblk_t colour; int depth; @@ -169,8 +170,13 @@ static ext4_fsblk_t ext4_ext_find_goal(struct inode *inode, /* OK. use inode's group */ bg_start = (ei->i_block_group * EXT4_BLOCKS_PER_GROUP(inode->i_sb)) + le32_to_cpu(EXT4_SB(inode->i_sb)->s_es->s_first_data_block); - colour = (current->pid % 16) * + last_block = ext4_blocks_count(EXT4_SB(inode->i_sb)->s_es) - 1; + + if (bg_start + EXT4_BLOCKS_PER_GROUP(inode->i_sb) <= last_block) + colour = (current->pid % 16) * (EXT4_BLOCKS_PER_GROUP(inode->i_sb) / 16); + else + colour = (current->pid % 16) * ((last_block - bg_start) / 16); return bg_start + colour + block; } @@ -349,7 +355,7 @@ static void ext4_ext_show_leaf(struct inode *inode, struct ext4_ext_path *path) #define ext4_ext_show_leaf(inode,path) #endif -static void ext4_ext_drop_refs(struct ext4_ext_path *path) +void ext4_ext_drop_refs(struct ext4_ext_path *path) { int depth = path->p_depth; int i; @@ -2168,6 +2174,10 @@ static int ext4_ext_convert_to_initialized(handle_t *handle, newblock = iblock - ee_block + ext_pblock(ex); ex2 = ex; + err = ext4_ext_get_access(handle, inode, path + depth); + if (err) + goto out; + /* ex1: ee_block to iblock - 1 : uninitialized */ if (iblock > ee_block) { ex1 = ex; @@ -2200,16 +2210,20 @@ static int ext4_ext_convert_to_initialized(handle_t *handle, newdepth = ext_depth(inode); if (newdepth != depth) { depth = newdepth; - path = ext4_ext_find_extent(inode, iblock, NULL); + ext4_ext_drop_refs(path); + path = ext4_ext_find_extent(inode, iblock, path); if (IS_ERR(path)) { err = PTR_ERR(path); - path = NULL; goto out; } eh = path[depth].p_hdr; ex = path[depth].p_ext; if (ex2 != &newex) ex2 = ex; + + err = ext4_ext_get_access(handle, inode, path + depth); + if (err) + goto out; } allocated = max_blocks; } @@ -2230,9 +2244,6 @@ static int ext4_ext_convert_to_initialized(handle_t *handle, ex2->ee_len = cpu_to_le16(allocated); if (ex2 != ex) goto insert; - err = ext4_ext_get_access(handle, inode, path + depth); - if (err) - goto out; /* * New (initialized) extent starts from the first block * in the current extent. i.e., ex2 == ex @@ -2276,9 +2287,22 @@ out: } /* + * Block allocation/map/preallocation routine for extents based files + * + * * Need to be called with * down_read(&EXT4_I(inode)->i_data_sem) if not allocating file system block * (ie, create is zero). Otherwise down_write(&EXT4_I(inode)->i_data_sem) + * + * return > 0, number of of blocks already mapped/allocated + * if create == 0 and these are pre-allocated blocks + * buffer head is unmapped + * otherwise blocks are mapped + * + * return = 0, if plain look up failed (blocks have not been allocated) + * buffer head is unmapped + * + * return < 0, error case. */ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, ext4_lblk_t iblock, @@ -2623,7 +2647,7 @@ long ext4_fallocate(struct inode *inode, int mode, loff_t offset, loff_t len) * modify 1 super block, 1 block bitmap and 1 group descriptor. */ credits = EXT4_DATA_TRANS_BLOCKS(inode->i_sb) + 3; - down_write((&EXT4_I(inode)->i_data_sem)); + mutex_lock(&inode->i_mutex); retry: while (ret >= 0 && ret < max_blocks) { block = block + ret; @@ -2634,16 +2658,17 @@ retry: break; } - ret = ext4_ext_get_blocks(handle, inode, block, + ret = ext4_get_blocks_wrap(handle, inode, block, max_blocks, &map_bh, EXT4_CREATE_UNINITIALIZED_EXT, 0); - WARN_ON(ret <= 0); if (ret <= 0) { - ext4_error(inode->i_sb, "ext4_fallocate", - "ext4_ext_get_blocks returned error: " - "inode#%lu, block=%u, max_blocks=%lu", +#ifdef EXT4FS_DEBUG + WARN_ON(ret <= 0); + printk(KERN_ERR "%s: ext4_ext_get_blocks " + "returned error inode#%lu, block=%u, " + "max_blocks=%lu", __func__, inode->i_ino, block, max_blocks); - ret = -EIO; +#endif ext4_mark_inode_dirty(handle, inode); ret2 = ext4_journal_stop(handle); break; @@ -2680,7 +2705,6 @@ retry: if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)) goto retry; - up_write((&EXT4_I(inode)->i_data_sem)); /* * Time to update the file size. * Update only when preallocation was requested beyond the file size. @@ -2692,21 +2716,18 @@ retry: * if no error, we assume preallocation succeeded * completely */ - mutex_lock(&inode->i_mutex); i_size_write(inode, offset + len); EXT4_I(inode)->i_disksize = i_size_read(inode); - mutex_unlock(&inode->i_mutex); } else if (ret < 0 && nblocks) { /* Handle partial allocation scenario */ loff_t newsize; - mutex_lock(&inode->i_mutex); newsize = (nblocks << blkbits) + i_size_read(inode); i_size_write(inode, EXT4_BLOCK_ALIGN(newsize, blkbits)); EXT4_I(inode)->i_disksize = i_size_read(inode); - mutex_unlock(&inode->i_mutex); } } + mutex_unlock(&inode->i_mutex); return ret > 0 ? ret2 : ret; } diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index da18a74b966a..8036b9b5376b 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -702,7 +702,12 @@ got: ei->i_dir_start_lookup = 0; ei->i_disksize = 0; - ei->i_flags = EXT4_I(dir)->i_flags & ~EXT4_INDEX_FL; + /* + * Don't inherit extent flag from directory. We set extent flag on + * newly created directory and file only if -o extent mount option is + * specified + */ + ei->i_flags = EXT4_I(dir)->i_flags & ~(EXT4_INDEX_FL|EXT4_EXTENTS_FL); if (S_ISLNK(mode)) ei->i_flags &= ~(EXT4_IMMUTABLE_FL|EXT4_APPEND_FL); /* dirsync only applies to directories */ @@ -745,12 +750,15 @@ got: goto fail_free_drop; } if (test_opt(sb, EXTENTS)) { - EXT4_I(inode)->i_flags |= EXT4_EXTENTS_FL; - ext4_ext_tree_init(handle, inode); - err = ext4_update_incompat_feature(handle, sb, - EXT4_FEATURE_INCOMPAT_EXTENTS); - if (err) - goto fail; + /* set extent flag only for directory and file */ + if (S_ISDIR(mode) || S_ISREG(mode)) { + EXT4_I(inode)->i_flags |= EXT4_EXTENTS_FL; + ext4_ext_tree_init(handle, inode); + err = ext4_update_incompat_feature(handle, sb, + EXT4_FEATURE_INCOMPAT_EXTENTS); + if (err) + goto fail; + } } ext4_debug("allocating inode %lu\n", inode->i_ino); diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 7dd9b50d5ebc..945cbf6cb1fc 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -403,6 +403,7 @@ static ext4_fsblk_t ext4_find_near(struct inode *inode, Indirect *ind) __le32 *start = ind->bh ? (__le32*) ind->bh->b_data : ei->i_data; __le32 *p; ext4_fsblk_t bg_start; + ext4_fsblk_t last_block; ext4_grpblk_t colour; /* Try to find previous block */ @@ -420,8 +421,13 @@ static ext4_fsblk_t ext4_find_near(struct inode *inode, Indirect *ind) * into the same cylinder group then. */ bg_start = ext4_group_first_block_no(inode->i_sb, ei->i_block_group); - colour = (current->pid % 16) * + last_block = ext4_blocks_count(EXT4_SB(inode->i_sb)->s_es) - 1; + + if (bg_start + EXT4_BLOCKS_PER_GROUP(inode->i_sb) <= last_block) + colour = (current->pid % 16) * (EXT4_BLOCKS_PER_GROUP(inode->i_sb) / 16); + else + colour = (current->pid % 16) * ((last_block - bg_start) / 16); return bg_start + colour; } @@ -768,7 +774,6 @@ err_out: * * `handle' can be NULL if create == 0. * - * The BKL may not be held on entry here. Be sure to take it early. * return > 0, # of blocks mapped or allocated. * return = 0, if plain lookup failed. * return < 0, error case. @@ -903,11 +908,38 @@ out: */ #define DIO_CREDITS 25 + +/* + * + * + * ext4_ext4 get_block() wrapper function + * It will do a look up first, and returns if the blocks already mapped. + * Otherwise it takes the write lock of the i_data_sem and allocate blocks + * and store the allocated blocks in the result buffer head and mark it + * mapped. + * + * If file type is extents based, it will call ext4_ext_get_blocks(), + * Otherwise, call with ext4_get_blocks_handle() to handle indirect mapping + * based files + * + * On success, it returns the number of blocks being mapped or allocate. + * if create==0 and the blocks are pre-allocated and uninitialized block, + * the result buffer head is unmapped. If the create ==1, it will make sure + * the buffer head is mapped. + * + * It returns 0 if plain look up failed (blocks have not been allocated), in + * that casem, buffer head is unmapped + * + * It returns the error in case of allocation failure. + */ int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block, unsigned long max_blocks, struct buffer_head *bh, int create, int extend_disksize) { int retval; + + clear_buffer_mapped(bh); + /* * Try to see if we can get the block without requesting * for new file system block. @@ -921,12 +953,26 @@ int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block, inode, block, max_blocks, bh, 0, 0); } up_read((&EXT4_I(inode)->i_data_sem)); - if (!create || (retval > 0)) + + /* If it is only a block(s) look up */ + if (!create) + return retval; + + /* + * Returns if the blocks have already allocated + * + * Note that if blocks have been preallocated + * ext4_ext_get_block() returns th create = 0 + * with buffer head unmapped. + */ + if (retval > 0 && buffer_mapped(bh)) return retval; /* - * We need to allocate new blocks which will result - * in i_data update + * New blocks allocate and/or writing to uninitialized extent + * will possibly result in updating i_data, so we take + * the write lock of i_data_sem, and call get_blocks() + * with create == 1 flag. */ down_write((&EXT4_I(inode)->i_data_sem)); /* diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index dd0fcfcb35ce..ef97f19c2f9d 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -627,21 +627,19 @@ static ext4_fsblk_t ext4_grp_offs_to_block(struct super_block *sb, return block; } +static inline void *mb_correct_addr_and_bit(int *bit, void *addr) +{ #if BITS_PER_LONG == 64 -#define mb_correct_addr_and_bit(bit, addr) \ -{ \ - bit += ((unsigned long) addr & 7UL) << 3; \ - addr = (void *) ((unsigned long) addr & ~7UL); \ -} + *bit += ((unsigned long) addr & 7UL) << 3; + addr = (void *) ((unsigned long) addr & ~7UL); #elif BITS_PER_LONG == 32 -#define mb_correct_addr_and_bit(bit, addr) \ -{ \ - bit += ((unsigned long) addr & 3UL) << 3; \ - addr = (void *) ((unsigned long) addr & ~3UL); \ -} + *bit += ((unsigned long) addr & 3UL) << 3; + addr = (void *) ((unsigned long) addr & ~3UL); #else #error "how many bits you are?!" #endif + return addr; +} static inline int mb_test_bit(int bit, void *addr) { @@ -649,34 +647,54 @@ static inline int mb_test_bit(int bit, void *addr) * ext4_test_bit on architecture like powerpc * needs unsigned long aligned address */ - mb_correct_addr_and_bit(bit, addr); + addr = mb_correct_addr_and_bit(&bit, addr); return ext4_test_bit(bit, addr); } static inline void mb_set_bit(int bit, void *addr) { - mb_correct_addr_and_bit(bit, addr); + addr = mb_correct_addr_and_bit(&bit, addr); ext4_set_bit(bit, addr); } static inline void mb_set_bit_atomic(spinlock_t *lock, int bit, void *addr) { - mb_correct_addr_and_bit(bit, addr); + addr = mb_correct_addr_and_bit(&bit, addr); ext4_set_bit_atomic(lock, bit, addr); } static inline void mb_clear_bit(int bit, void *addr) { - mb_correct_addr_and_bit(bit, addr); + addr = mb_correct_addr_and_bit(&bit, addr); ext4_clear_bit(bit, addr); } static inline void mb_clear_bit_atomic(spinlock_t *lock, int bit, void *addr) { - mb_correct_addr_and_bit(bit, addr); + addr = mb_correct_addr_and_bit(&bit, addr); ext4_clear_bit_atomic(lock, bit, addr); } +static inline int mb_find_next_zero_bit(void *addr, int max, int start) +{ + int fix = 0; + addr = mb_correct_addr_and_bit(&fix, addr); + max += fix; + start += fix; + + return ext4_find_next_zero_bit(addr, max, start) - fix; +} + +static inline int mb_find_next_bit(void *addr, int max, int start) +{ + int fix = 0; + addr = mb_correct_addr_and_bit(&fix, addr); + max += fix; + start += fix; + + return ext4_find_next_bit(addr, max, start) - fix; +} + static void *mb_find_buddy(struct ext4_buddy *e4b, int order, int *max) { char *bb; @@ -906,7 +924,7 @@ static void ext4_mb_mark_free_simple(struct super_block *sb, unsigned short chunk; unsigned short border; - BUG_ON(len >= EXT4_BLOCKS_PER_GROUP(sb)); + BUG_ON(len > EXT4_BLOCKS_PER_GROUP(sb)); border = 2 << sb->s_blocksize_bits; @@ -946,12 +964,12 @@ static void ext4_mb_generate_buddy(struct super_block *sb, /* initialize buddy from bitmap which is aggregation * of on-disk bitmap and preallocations */ - i = ext4_find_next_zero_bit(bitmap, max, 0); + i = mb_find_next_zero_bit(bitmap, max, 0); grp->bb_first_free = i; while (i < max) { fragments++; first = i; - i = ext4_find_next_bit(bitmap, max, i); + i = mb_find_next_bit(bitmap, max, i); len = i - first; free += len; if (len > 1) @@ -959,7 +977,7 @@ static void ext4_mb_generate_buddy(struct super_block *sb, else grp->bb_counters[0]++; if (i < max) - i = ext4_find_next_zero_bit(bitmap, max, i); + i = mb_find_next_zero_bit(bitmap, max, i); } grp->bb_fragments = fragments; @@ -967,6 +985,10 @@ static void ext4_mb_generate_buddy(struct super_block *sb, ext4_error(sb, __FUNCTION__, "EXT4-fs: group %lu: %u blocks in bitmap, %u in gd\n", group, free, grp->bb_free); + /* + * If we intent to continue, we consider group descritor + * corrupt and update bb_free using bitmap value + */ grp->bb_free = free; } @@ -1778,7 +1800,7 @@ static void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac, buddy = mb_find_buddy(e4b, i, &max); BUG_ON(buddy == NULL); - k = ext4_find_next_zero_bit(buddy, max, 0); + k = mb_find_next_zero_bit(buddy, max, 0); BUG_ON(k >= max); ac->ac_found++; @@ -1818,11 +1840,11 @@ static void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac, i = e4b->bd_info->bb_first_free; while (free && ac->ac_status == AC_STATUS_CONTINUE) { - i = ext4_find_next_zero_bit(bitmap, + i = mb_find_next_zero_bit(bitmap, EXT4_BLOCKS_PER_GROUP(sb), i); if (i >= EXT4_BLOCKS_PER_GROUP(sb)) { /* - * IF we corrupt the bitmap we won't find any + * IF we have corrupt bitmap, we won't find any * free blocks even though group info says we * we have free blocks */ @@ -1838,6 +1860,12 @@ static void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac, ext4_error(sb, __FUNCTION__, "%d free blocks as per " "group info. But got %d blocks\n", free, ex.fe_len); + /* + * The number of free blocks differs. This mostly + * indicate that the bitmap is corrupt. So exit + * without claiming the space. + */ + break; } ext4_mb_measure_extent(ac, &ex, e4b); @@ -3740,10 +3768,10 @@ static int ext4_mb_release_inode_pa(struct ext4_buddy *e4b, } while (bit < end) { - bit = ext4_find_next_zero_bit(bitmap_bh->b_data, end, bit); + bit = mb_find_next_zero_bit(bitmap_bh->b_data, end, bit); if (bit >= end) break; - next = ext4_find_next_bit(bitmap_bh->b_data, end, bit); + next = mb_find_next_bit(bitmap_bh->b_data, end, bit); if (next > end) next = end; start = group * EXT4_BLOCKS_PER_GROUP(sb) + bit + @@ -3771,6 +3799,10 @@ static int ext4_mb_release_inode_pa(struct ext4_buddy *e4b, (unsigned long) pa->pa_len); ext4_error(sb, __FUNCTION__, "free %u, pa_free %u\n", free, pa->pa_free); + /* + * pa is already deleted so we use the value obtained + * from the bitmap and continue. + */ } atomic_add(free, &sbi->s_mb_discarded); if (ac) diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c index 8c6c685b9d22..5c1e27de7755 100644 --- a/fs/ext4/migrate.c +++ b/fs/ext4/migrate.c @@ -43,6 +43,7 @@ static int finish_range(handle_t *handle, struct inode *inode, if (IS_ERR(path)) { retval = PTR_ERR(path); + path = NULL; goto err_out; } @@ -74,6 +75,10 @@ static int finish_range(handle_t *handle, struct inode *inode, } retval = ext4_ext_insert_extent(handle, inode, path, &newext); err_out: + if (path) { + ext4_ext_drop_refs(path); + kfree(path); + } lb->first_pblock = 0; return retval; } diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index a9347fb43bcc..28aa2ed4297e 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1804,12 +1804,8 @@ retry: inode->i_fop = &ext4_dir_operations; inode->i_size = EXT4_I(inode)->i_disksize = inode->i_sb->s_blocksize; dir_block = ext4_bread (handle, inode, 0, 1, &err); - if (!dir_block) { - ext4_dec_count(handle, inode); /* is this nlink == 0? */ - ext4_mark_inode_dirty(handle, inode); - iput (inode); - goto out_stop; - } + if (!dir_block) + goto out_clear_inode; BUFFER_TRACE(dir_block, "get_write_access"); ext4_journal_get_write_access(handle, dir_block); de = (struct ext4_dir_entry_2 *) dir_block->b_data; @@ -1832,7 +1828,8 @@ retry: ext4_mark_inode_dirty(handle, inode); err = ext4_add_entry (handle, dentry, inode); if (err) { - inode->i_nlink = 0; +out_clear_inode: + clear_nlink(inode); ext4_mark_inode_dirty(handle, inode); iput (inode); goto out_stop; @@ -2164,7 +2161,7 @@ static int ext4_unlink(struct inode * dir, struct dentry *dentry) dir->i_ctime = dir->i_mtime = ext4_current_time(dir); ext4_update_dx_flag(dir); ext4_mark_inode_dirty(handle, dir); - ext4_dec_count(handle, inode); + drop_nlink(inode); if (!inode->i_nlink) ext4_orphan_add(handle, inode); inode->i_ctime = ext4_current_time(inode); @@ -2214,7 +2211,7 @@ retry: err = __page_symlink(inode, symname, l, mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS); if (err) { - ext4_dec_count(handle, inode); + clear_nlink(inode); ext4_mark_inode_dirty(handle, inode); iput (inode); goto out_stop; @@ -2223,7 +2220,6 @@ retry: inode->i_op = &ext4_fast_symlink_inode_operations; memcpy((char*)&EXT4_I(inode)->i_data,symname,l); inode->i_size = l-1; - EXT4_I(inode)->i_flags &= ~EXT4_EXTENTS_FL; } EXT4_I(inode)->i_disksize = inode->i_size; err = ext4_add_nondir(handle, dentry, inode); @@ -2407,7 +2403,7 @@ static int ext4_rename (struct inode * old_dir, struct dentry *old_dentry, ext4_dec_count(handle, old_dir); if (new_inode) { /* checked empty_dir above, can't have another parent, - * ext3_dec_count() won't work for many-linked dirs */ + * ext4_dec_count() won't work for many-linked dirs */ new_inode->i_nlink = 0; } else { ext4_inc_count(handle, new_dir); diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 9477a2bd6ff2..e29efa0f9d62 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -1037,6 +1037,7 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es, ext4_warning(sb, __FUNCTION__, "multiple resizers run on filesystem!"); unlock_super(sb); + ext4_journal_stop(handle); err = -EBUSY; goto exit_put; } diff --git a/fs/hfs/brec.c b/fs/hfs/brec.c index 878bf25dbc6a..92fb358ce824 100644 --- a/fs/hfs/brec.c +++ b/fs/hfs/brec.c @@ -229,7 +229,7 @@ skip: static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd) { struct hfs_btree *tree; - struct hfs_bnode *node, *new_node; + struct hfs_bnode *node, *new_node, *next_node; struct hfs_bnode_desc node_desc; int num_recs, new_rec_off, new_off, old_rec_off; int data_start, data_end, size; @@ -248,6 +248,17 @@ static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd) new_node->type = node->type; new_node->height = node->height; + if (node->next) + next_node = hfs_bnode_find(tree, node->next); + else + next_node = NULL; + + if (IS_ERR(next_node)) { + hfs_bnode_put(node); + hfs_bnode_put(new_node); + return next_node; + } + size = tree->node_size / 2 - node->num_recs * 2 - 14; old_rec_off = tree->node_size - 4; num_recs = 1; @@ -261,6 +272,8 @@ static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd) /* panic? */ hfs_bnode_put(node); hfs_bnode_put(new_node); + if (next_node) + hfs_bnode_put(next_node); return ERR_PTR(-ENOSPC); } @@ -315,8 +328,7 @@ static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd) hfs_bnode_write(node, &node_desc, 0, sizeof(node_desc)); /* update next bnode header */ - if (new_node->next) { - struct hfs_bnode *next_node = hfs_bnode_find(tree, new_node->next); + if (next_node) { next_node->prev = new_node->this; hfs_bnode_read(next_node, &node_desc, 0, sizeof(node_desc)); node_desc.prev = cpu_to_be32(next_node->prev); diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c index 038ed7436199..c6cbb6cd59b2 100644 --- a/fs/jbd/transaction.c +++ b/fs/jbd/transaction.c @@ -369,7 +369,7 @@ out: /** - * int journal_restart() - restart a handle . + * int journal_restart() - restart a handle. * @handle: handle to restart * @nblocks: nr credits requested * @@ -844,8 +844,7 @@ out: } /** - * int journal_get_undo_access() - Notify intent to modify metadata with - * non-rewindable consequences + * int journal_get_undo_access() - Notify intent to modify metadata with non-rewindable consequences * @handle: transaction * @bh: buffer to undo * @credits: store the number of taken credits here (if not NULL) @@ -921,12 +920,14 @@ out: } /** - * int journal_dirty_data() - mark a buffer as containing dirty data which - * needs to be flushed before we can commit the - * current transaction. + * int journal_dirty_data() - mark a buffer as containing dirty data to be flushed * @handle: transaction * @bh: bufferhead to mark * + * Description: + * Mark a buffer as containing dirty data which needs to be flushed before + * we can commit the current transaction. + * * The buffer is placed on the transaction's data list and is marked as * belonging to the transaction. * @@ -1098,11 +1099,11 @@ no_journal: } /** - * int journal_dirty_metadata() - mark a buffer as containing dirty metadata + * int journal_dirty_metadata() - mark a buffer as containing dirty metadata * @handle: transaction to add buffer to. * @bh: buffer to mark * - * mark dirty metadata which needs to be journaled as part of the current + * Mark dirty metadata which needs to be journaled as part of the current * transaction. * * The buffer is placed on the transaction's metadata list and is marked diff --git a/fs/mpage.c b/fs/mpage.c index 5df564366f36..235e4d3873a8 100644 --- a/fs/mpage.c +++ b/fs/mpage.c @@ -325,16 +325,12 @@ confused: } /** - * mpage_readpages - populate an address space with some pages, and - * start reads against them. - * + * mpage_readpages - populate an address space with some pages & start reads against them * @mapping: the address_space * @pages: The address of a list_head which contains the target pages. These * pages have their ->index populated and are otherwise uninitialised. - * * The page at @pages->prev has the lowest file offset, and reads should be * issued in @pages->prev to @pages->next order. - * * @nr_pages: The number of pages at *@pages * @get_block: The filesystem's block mapper function. * @@ -360,6 +356,7 @@ confused: * So an mpage read of the first 16 blocks of an ext2 file will cause I/O to be * submitted in the following order: * 12 0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 16 + * * because the indirect block has to be read to get the mappings of blocks * 13,14,15,16. Obviously, this impacts performance. * @@ -656,9 +653,7 @@ out: } /** - * mpage_writepages - walk the list of dirty pages of the given - * address space and writepage() all of them. - * + * mpage_writepages - walk the list of dirty pages of the given address space & writepage() all of them * @mapping: address space structure to write * @wbc: subtract the number of written pages from *@wbc->nr_to_write * @get_block: the filesystem's block mapper function. diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index ae04892a5e5d..6cea7479c5b4 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -710,6 +710,8 @@ int nfs_lookup_verify_inode(struct inode *inode, struct nameidata *nd) { struct nfs_server *server = NFS_SERVER(inode); + if (test_bit(NFS_INO_MOUNTPOINT, &NFS_I(inode)->flags)) + return 0; if (nd != NULL) { /* VFS wants an on-the-wire revalidation */ if (nd->flags & LOOKUP_REVAL) diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 966a8850aa30..a4c7cf2bff3a 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -299,6 +299,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr) else inode->i_op = &nfs_mountpoint_inode_operations; inode->i_fop = NULL; + set_bit(NFS_INO_MOUNTPOINT, &nfsi->flags); } } else if (S_ISLNK(inode->i_mode)) inode->i_op = &nfs_symlink_inode_operations; @@ -1003,8 +1004,9 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) server = NFS_SERVER(inode); /* Update the fsid? */ - if (S_ISDIR(inode->i_mode) - && !nfs_fsid_equal(&server->fsid, &fattr->fsid)) + if (S_ISDIR(inode->i_mode) && + !nfs_fsid_equal(&server->fsid, &fattr->fsid) && + !test_bit(NFS_INO_MOUNTPOINT, &nfsi->flags)) server->fsid = fattr->fsid; /* diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 0f5619611b8d..931992763e68 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -3,6 +3,7 @@ */ #include <linux/mount.h> +#include <linux/security.h> struct nfs_string; @@ -57,6 +58,8 @@ struct nfs_parsed_mount_data { char *export_path; int protocol; } nfs_server; + + struct security_mnt_opts lsm_opts; }; /* client.c */ diff --git a/fs/nfs/super.c b/fs/nfs/super.c index bdcf6d3ef62f..dd4dfcd632ec 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -684,8 +684,9 @@ static void nfs_parse_server_address(char *value, static int nfs_parse_mount_options(char *raw, struct nfs_parsed_mount_data *mnt) { - char *p, *string; + char *p, *string, *secdata; unsigned short port = 0; + int rc; if (!raw) { dfprintk(MOUNT, "NFS: mount options string was NULL.\n"); @@ -693,6 +694,20 @@ static int nfs_parse_mount_options(char *raw, } dfprintk(MOUNT, "NFS: nfs mount opts='%s'\n", raw); + secdata = alloc_secdata(); + if (!secdata) + goto out_nomem; + + rc = security_sb_copy_data(raw, secdata); + if (rc) + goto out_security_failure; + + rc = security_sb_parse_opts_str(secdata, &mnt->lsm_opts); + if (rc) + goto out_security_failure; + + free_secdata(secdata); + while ((p = strsep(&raw, ",")) != NULL) { substring_t args[MAX_OPT_ARGS]; int option, token; @@ -1042,7 +1057,10 @@ static int nfs_parse_mount_options(char *raw, out_nomem: printk(KERN_INFO "NFS: not enough memory to parse option\n"); return 0; - +out_security_failure: + free_secdata(secdata); + printk(KERN_INFO "NFS: security options invalid: %d\n", rc); + return 0; out_unrec_vers: printk(KERN_INFO "NFS: unrecognized NFS version number\n"); return 0; @@ -1214,6 +1232,33 @@ static int nfs_validate_mount_data(void *options, args->namlen = data->namlen; args->bsize = data->bsize; args->auth_flavors[0] = data->pseudoflavor; + + /* + * The legacy version 6 binary mount data from userspace has a + * field used only to transport selinux information into the + * the kernel. To continue to support that functionality we + * have a touch of selinux knowledge here in the NFS code. The + * userspace code converted context=blah to just blah so we are + * converting back to the full string selinux understands. + */ + if (data->context[0]){ +#ifdef CONFIG_SECURITY_SELINUX + int rc; + char *opts_str = kmalloc(sizeof(data->context) + 8, GFP_KERNEL); + if (!opts_str) + return -ENOMEM; + strcpy(opts_str, "context="); + data->context[NFS_MAX_CONTEXT_LEN] = '\0'; + strcat(opts_str, &data->context[0]); + rc = security_sb_parse_opts_str(opts_str, &args->lsm_opts); + kfree(opts_str); + if (rc) + return rc; +#else + return -EINVAL; +#endif + } + break; default: { unsigned int len; @@ -1476,6 +1521,8 @@ static int nfs_get_sb(struct file_system_type *fs_type, }; int error; + security_init_mnt_opts(&data.lsm_opts); + /* Validate the mount data */ error = nfs_validate_mount_data(raw_data, &data, &mntfh, dev_name); if (error < 0) @@ -1515,6 +1562,10 @@ static int nfs_get_sb(struct file_system_type *fs_type, goto error_splat_super; } + error = security_sb_set_mnt_opts(s, &data.lsm_opts); + if (error) + goto error_splat_root; + s->s_flags |= MS_ACTIVE; mnt->mnt_sb = s; mnt->mnt_root = mntroot; @@ -1523,12 +1574,15 @@ static int nfs_get_sb(struct file_system_type *fs_type, out: kfree(data.nfs_server.hostname); kfree(data.mount_server.hostname); + security_free_mnt_opts(&data.lsm_opts); return error; out_err_nosb: nfs_free_server(server); goto out; +error_splat_root: + dput(mntroot); error_splat_super: up_write(&s->s_umount); deactivate_super(s); @@ -1608,6 +1662,9 @@ static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags, mnt->mnt_sb = s; mnt->mnt_root = mntroot; + /* clone any lsm security options from the parent to the new sb */ + security_sb_clone_mnt_opts(data->sb, s); + dprintk("<-- nfs_xdev_get_sb() = 0\n"); return 0; @@ -1850,6 +1907,8 @@ static int nfs4_get_sb(struct file_system_type *fs_type, }; int error; + security_init_mnt_opts(&data.lsm_opts); + /* Validate the mount data */ error = nfs4_validate_mount_data(raw_data, &data, dev_name); if (error < 0) @@ -1898,6 +1957,7 @@ out: kfree(data.client_address); kfree(data.nfs_server.export_path); kfree(data.nfs_server.hostname); + security_free_mnt_opts(&data.lsm_opts); return error; out_free: diff --git a/fs/nfs/write.c b/fs/nfs/write.c index f55c437124a2..80c61fdb2720 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -734,7 +734,7 @@ int nfs_updatepage(struct file *file, struct page *page, */ if (nfs_write_pageuptodate(page, inode) && inode->i_flock == NULL && - !(file->f_mode & O_SYNC)) { + !(file->f_flags & O_SYNC)) { count = max(count + offset, nfs_page_length(page)); offset = 0; } diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c index 1eb771d79cca..3e6b3f41ee1f 100644 --- a/fs/nfsd/nfsfh.c +++ b/fs/nfsd/nfsfh.c @@ -232,6 +232,7 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access) fhp->fh_dentry = dentry; fhp->fh_export = exp; nfsd_nr_verified++; + cache_get(&exp->h); } else { /* * just rechecking permissions @@ -241,6 +242,7 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access) dprintk("nfsd: fh_verify - just checking\n"); dentry = fhp->fh_dentry; exp = fhp->fh_export; + cache_get(&exp->h); /* * Set user creds for this exportpoint; necessary even * in the "just checking" case because this may be a @@ -252,8 +254,6 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access) if (error) goto out; } - cache_get(&exp->h); - error = nfsd_mode_check(rqstp, dentry->d_inode->i_mode, type); if (error) diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index 82243127eebf..90383ed61005 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -257,7 +257,7 @@ static int ocfs2_readpage_inline(struct inode *inode, struct page *page) struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); BUG_ON(!PageLocked(page)); - BUG_ON(!OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL); + BUG_ON(!(OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL)); ret = ocfs2_read_block(osb, OCFS2_I(inode)->ip_blkno, &di_bh, OCFS2_BH_CACHED, inode); diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c index ee50c9610e7f..b8057c51b205 100644 --- a/fs/ocfs2/cluster/tcp.c +++ b/fs/ocfs2/cluster/tcp.c @@ -451,9 +451,9 @@ static void o2net_set_nn_state(struct o2net_node *nn, /* delay if we're withing a RECONNECT_DELAY of the * last attempt */ delay = (nn->nn_last_connect_attempt + - msecs_to_jiffies(o2net_reconnect_delay(sc->sc_node))) + msecs_to_jiffies(o2net_reconnect_delay(NULL))) - jiffies; - if (delay > msecs_to_jiffies(o2net_reconnect_delay(sc->sc_node))) + if (delay > msecs_to_jiffies(o2net_reconnect_delay(NULL))) delay = 0; mlog(ML_CONN, "queueing conn attempt in %lu jiffies\n", delay); queue_delayed_work(o2net_wq, &nn->nn_connect_work, delay); @@ -1552,12 +1552,11 @@ static void o2net_connect_expired(struct work_struct *work) spin_lock(&nn->nn_lock); if (!nn->nn_sc_valid) { - struct o2nm_node *node = nn->nn_sc->sc_node; mlog(ML_ERROR, "no connection established with node %u after " "%u.%u seconds, giving up and returning errors.\n", o2net_num_from_nn(nn), - o2net_idle_timeout(node) / 1000, - o2net_idle_timeout(node) % 1000); + o2net_idle_timeout(NULL) / 1000, + o2net_idle_timeout(NULL) % 1000); o2net_set_nn_state(nn, NULL, 0, -ENOTCONN); } diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c index e280833ceb9a..8a1875848080 100644 --- a/fs/ocfs2/dir.c +++ b/fs/ocfs2/dir.c @@ -390,9 +390,8 @@ static int __ocfs2_delete_entry(handle_t *handle, struct inode *dir, goto bail; } if (pde) - pde->rec_len = - cpu_to_le16(le16_to_cpu(pde->rec_len) + - le16_to_cpu(de->rec_len)); + le16_add_cpu(&pde->rec_len, + le16_to_cpu(de->rec_len)); else de->inode = 0; dir->i_version++; diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h index 9843ee17ea27..dc8ea666efdb 100644 --- a/fs/ocfs2/dlm/dlmcommon.h +++ b/fs/ocfs2/dlm/dlmcommon.h @@ -176,6 +176,7 @@ struct dlm_mig_lockres_priv { struct dlm_lock_resource *lockres; u8 real_master; + u8 extra_ref; }; struct dlm_assert_master_priv @@ -602,17 +603,19 @@ enum dlm_query_join_response_code { JOIN_PROTOCOL_MISMATCH, }; +struct dlm_query_join_packet { + u8 code; /* Response code. dlm_minor and fs_minor + are only valid if this is JOIN_OK */ + u8 dlm_minor; /* The minor version of the protocol the + dlm is speaking. */ + u8 fs_minor; /* The minor version of the protocol the + filesystem is speaking. */ + u8 reserved; +}; + union dlm_query_join_response { u32 intval; - struct { - u8 code; /* Response code. dlm_minor and fs_minor - are only valid if this is JOIN_OK */ - u8 dlm_minor; /* The minor version of the protocol the - dlm is speaking. */ - u8 fs_minor; /* The minor version of the protocol the - filesystem is speaking. */ - u8 reserved; - } packet; + struct dlm_query_join_packet packet; }; struct dlm_lock_request diff --git a/fs/ocfs2/dlm/dlmconvert.c b/fs/ocfs2/dlm/dlmconvert.c index ecb4d997221e..75997b4deaf3 100644 --- a/fs/ocfs2/dlm/dlmconvert.c +++ b/fs/ocfs2/dlm/dlmconvert.c @@ -487,7 +487,7 @@ int dlm_convert_lock_handler(struct o2net_msg *msg, u32 len, void *data, "cookie=%u:%llu\n", dlm_get_lock_cookie_node(be64_to_cpu(cnv->cookie)), dlm_get_lock_cookie_seq(be64_to_cpu(cnv->cookie))); - __dlm_print_one_lock_resource(res); + dlm_print_one_lock_resource(res); goto leave; } diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index 638d2ebb892b..0879d86113e3 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -713,14 +713,46 @@ static int dlm_query_join_proto_check(char *proto_type, int node, return rc; } +/* + * struct dlm_query_join_packet is made up of four one-byte fields. They + * are effectively in big-endian order already. However, little-endian + * machines swap them before putting the packet on the wire (because + * query_join's response is a status, and that status is treated as a u32 + * on the wire). Thus, a big-endian and little-endian machines will treat + * this structure differently. + * + * The solution is to have little-endian machines swap the structure when + * converting from the structure to the u32 representation. This will + * result in the structure having the correct format on the wire no matter + * the host endian format. + */ +static void dlm_query_join_packet_to_wire(struct dlm_query_join_packet *packet, + u32 *wire) +{ + union dlm_query_join_response response; + + response.packet = *packet; + *wire = cpu_to_be32(response.intval); +} + +static void dlm_query_join_wire_to_packet(u32 wire, + struct dlm_query_join_packet *packet) +{ + union dlm_query_join_response response; + + response.intval = cpu_to_be32(wire); + *packet = response.packet; +} + static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data, void **ret_data) { struct dlm_query_join_request *query; - union dlm_query_join_response response = { - .packet.code = JOIN_DISALLOW, + struct dlm_query_join_packet packet = { + .code = JOIN_DISALLOW, }; struct dlm_ctxt *dlm = NULL; + u32 response; u8 nodenum; query = (struct dlm_query_join_request *) msg->buf; @@ -737,11 +769,11 @@ static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data, mlog(0, "node %u is not in our live map yet\n", query->node_idx); - response.packet.code = JOIN_DISALLOW; + packet.code = JOIN_DISALLOW; goto respond; } - response.packet.code = JOIN_OK_NO_MAP; + packet.code = JOIN_OK_NO_MAP; spin_lock(&dlm_domain_lock); dlm = __dlm_lookup_domain_full(query->domain, query->name_len); @@ -760,7 +792,7 @@ static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data, mlog(0, "disallow join as node %u does not " "have node %u in its nodemap\n", query->node_idx, nodenum); - response.packet.code = JOIN_DISALLOW; + packet.code = JOIN_DISALLOW; goto unlock_respond; } } @@ -780,23 +812,23 @@ static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data, /*If this is a brand new context and we * haven't started our join process yet, then * the other node won the race. */ - response.packet.code = JOIN_OK_NO_MAP; + packet.code = JOIN_OK_NO_MAP; } else if (dlm->joining_node != DLM_LOCK_RES_OWNER_UNKNOWN) { /* Disallow parallel joins. */ - response.packet.code = JOIN_DISALLOW; + packet.code = JOIN_DISALLOW; } else if (dlm->reco.state & DLM_RECO_STATE_ACTIVE) { mlog(0, "node %u trying to join, but recovery " "is ongoing.\n", bit); - response.packet.code = JOIN_DISALLOW; + packet.code = JOIN_DISALLOW; } else if (test_bit(bit, dlm->recovery_map)) { mlog(0, "node %u trying to join, but it " "still needs recovery.\n", bit); - response.packet.code = JOIN_DISALLOW; + packet.code = JOIN_DISALLOW; } else if (test_bit(bit, dlm->domain_map)) { mlog(0, "node %u trying to join, but it " "is still in the domain! needs recovery?\n", bit); - response.packet.code = JOIN_DISALLOW; + packet.code = JOIN_DISALLOW; } else { /* Alright we're fully a part of this domain * so we keep some state as to who's joining @@ -807,19 +839,15 @@ static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data, if (dlm_query_join_proto_check("DLM", bit, &dlm->dlm_locking_proto, &query->dlm_proto)) { - response.packet.code = - JOIN_PROTOCOL_MISMATCH; + packet.code = JOIN_PROTOCOL_MISMATCH; } else if (dlm_query_join_proto_check("fs", bit, &dlm->fs_locking_proto, &query->fs_proto)) { - response.packet.code = - JOIN_PROTOCOL_MISMATCH; + packet.code = JOIN_PROTOCOL_MISMATCH; } else { - response.packet.dlm_minor = - query->dlm_proto.pv_minor; - response.packet.fs_minor = - query->fs_proto.pv_minor; - response.packet.code = JOIN_OK; + packet.dlm_minor = query->dlm_proto.pv_minor; + packet.fs_minor = query->fs_proto.pv_minor; + packet.code = JOIN_OK; __dlm_set_joining_node(dlm, query->node_idx); } } @@ -830,9 +858,10 @@ unlock_respond: spin_unlock(&dlm_domain_lock); respond: - mlog(0, "We respond with %u\n", response.packet.code); + mlog(0, "We respond with %u\n", packet.code); - return response.intval; + dlm_query_join_packet_to_wire(&packet, &response); + return response; } static int dlm_assert_joined_handler(struct o2net_msg *msg, u32 len, void *data, @@ -937,7 +966,7 @@ static int dlm_send_join_cancels(struct dlm_ctxt *dlm, sizeof(unsigned long))) { mlog(ML_ERROR, "map_size %u != BITS_TO_LONGS(O2NM_MAX_NODES) %u\n", - map_size, BITS_TO_LONGS(O2NM_MAX_NODES)); + map_size, (unsigned)BITS_TO_LONGS(O2NM_MAX_NODES)); return -EINVAL; } @@ -968,7 +997,8 @@ static int dlm_request_join(struct dlm_ctxt *dlm, { int status; struct dlm_query_join_request join_msg; - union dlm_query_join_response join_resp; + struct dlm_query_join_packet packet; + u32 join_resp; mlog(0, "querying node %d\n", node); @@ -984,11 +1014,12 @@ static int dlm_request_join(struct dlm_ctxt *dlm, status = o2net_send_message(DLM_QUERY_JOIN_MSG, DLM_MOD_KEY, &join_msg, sizeof(join_msg), node, - &join_resp.intval); + &join_resp); if (status < 0 && status != -ENOPROTOOPT) { mlog_errno(status); goto bail; } + dlm_query_join_wire_to_packet(join_resp, &packet); /* -ENOPROTOOPT from the net code means the other side isn't listening for our message type -- that's fine, it means @@ -997,10 +1028,10 @@ static int dlm_request_join(struct dlm_ctxt *dlm, if (status == -ENOPROTOOPT) { status = 0; *response = JOIN_OK_NO_MAP; - } else if (join_resp.packet.code == JOIN_DISALLOW || - join_resp.packet.code == JOIN_OK_NO_MAP) { - *response = join_resp.packet.code; - } else if (join_resp.packet.code == JOIN_PROTOCOL_MISMATCH) { + } else if (packet.code == JOIN_DISALLOW || + packet.code == JOIN_OK_NO_MAP) { + *response = packet.code; + } else if (packet.code == JOIN_PROTOCOL_MISMATCH) { mlog(ML_NOTICE, "This node requested DLM locking protocol %u.%u and " "filesystem locking protocol %u.%u. At least one of " @@ -1012,14 +1043,12 @@ static int dlm_request_join(struct dlm_ctxt *dlm, dlm->fs_locking_proto.pv_minor, node); status = -EPROTO; - *response = join_resp.packet.code; - } else if (join_resp.packet.code == JOIN_OK) { - *response = join_resp.packet.code; + *response = packet.code; + } else if (packet.code == JOIN_OK) { + *response = packet.code; /* Use the same locking protocol as the remote node */ - dlm->dlm_locking_proto.pv_minor = - join_resp.packet.dlm_minor; - dlm->fs_locking_proto.pv_minor = - join_resp.packet.fs_minor; + dlm->dlm_locking_proto.pv_minor = packet.dlm_minor; + dlm->fs_locking_proto.pv_minor = packet.fs_minor; mlog(0, "Node %d responds JOIN_OK with DLM locking protocol " "%u.%u and fs locking protocol %u.%u\n", @@ -1031,11 +1060,11 @@ static int dlm_request_join(struct dlm_ctxt *dlm, } else { status = -EINVAL; mlog(ML_ERROR, "invalid response %d from node %u\n", - join_resp.packet.code, node); + packet.code, node); } mlog(0, "status %d, node %d response is %d\n", status, node, - *response); + *response); bail: return status; diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index a54d33d95ada..ea6b89577860 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -1663,7 +1663,12 @@ way_up_top: dlm_put_mle(tmpmle); } send_response: - + /* + * __dlm_lookup_lockres() grabbed a reference to this lockres. + * The reference is released by dlm_assert_master_worker() under + * the call to dlm_dispatch_assert_master(). If + * dlm_assert_master_worker() isn't called, we drop it here. + */ if (dispatch_assert) { if (response != DLM_MASTER_RESP_YES) mlog(ML_ERROR, "invalid response %d\n", response); @@ -1678,7 +1683,11 @@ send_response: if (ret < 0) { mlog(ML_ERROR, "failed to dispatch assert master work\n"); response = DLM_MASTER_RESP_ERROR; + dlm_lockres_put(res); } + } else { + if (res) + dlm_lockres_put(res); } dlm_put(dlm); @@ -1695,9 +1704,9 @@ send_response: * can periodically run all locks owned by this node * and re-assert across the cluster... */ -int dlm_do_assert_master(struct dlm_ctxt *dlm, - struct dlm_lock_resource *res, - void *nodemap, u32 flags) +static int dlm_do_assert_master(struct dlm_ctxt *dlm, + struct dlm_lock_resource *res, + void *nodemap, u32 flags) { struct dlm_assert_master assert; int to, tmpret; @@ -2348,7 +2357,7 @@ int dlm_deref_lockres_handler(struct o2net_msg *msg, u32 len, void *data, mlog(ML_ERROR, "%s:%.*s: node %u trying to drop ref " "but it is already dropped!\n", dlm->name, res->lockname.len, res->lockname.name, node); - __dlm_print_one_lock_resource(res); + dlm_print_one_lock_resource(res); } ret = 0; goto done; @@ -2408,7 +2417,7 @@ static void dlm_deref_lockres_worker(struct dlm_work_item *item, void *data) mlog(ML_ERROR, "%s:%.*s: node %u trying to drop ref " "but it is already dropped!\n", dlm->name, res->lockname.len, res->lockname.name, node); - __dlm_print_one_lock_resource(res); + dlm_print_one_lock_resource(res); } dlm_lockres_put(res); @@ -2933,6 +2942,9 @@ static void dlm_remove_nonlocal_locks(struct dlm_ctxt *dlm, dlm_lockres_clear_refmap_bit(lock->ml.node, res); list_del_init(&lock->list); dlm_lock_put(lock); + /* In a normal unlock, we would have added a + * DLM_UNLOCK_FREE_LOCK action. Force it. */ + dlm_lock_put(lock); } } queue++; diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index 91f747b8a538..bcb9260c3735 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -519,9 +519,9 @@ static int dlm_do_recovery(struct dlm_ctxt *dlm) return 0; master_here: - mlog(0, "(%d) mastering recovery of %s:%u here(this=%u)!\n", - task_pid_nr(dlm->dlm_reco_thread_task), - dlm->name, dlm->reco.dead_node, dlm->node_num); + mlog(ML_NOTICE, "(%d) Node %u is the Recovery Master for the Dead Node " + "%u for Domain %s\n", task_pid_nr(dlm->dlm_reco_thread_task), + dlm->node_num, dlm->reco.dead_node, dlm->name); status = dlm_remaster_locks(dlm, dlm->reco.dead_node); if (status < 0) { @@ -1191,7 +1191,7 @@ static int dlm_add_lock_to_array(struct dlm_lock *lock, (ml->type == LKM_EXMODE || memcmp(mres->lvb, lock->lksb->lvb, DLM_LVB_LEN))) { mlog(ML_ERROR, "mismatched lvbs!\n"); - __dlm_print_one_lock_resource(lock->lockres); + dlm_print_one_lock_resource(lock->lockres); BUG(); } memcpy(mres->lvb, lock->lksb->lvb, DLM_LVB_LEN); @@ -1327,6 +1327,7 @@ int dlm_mig_lockres_handler(struct o2net_msg *msg, u32 len, void *data, (struct dlm_migratable_lockres *)msg->buf; int ret = 0; u8 real_master; + u8 extra_refs = 0; char *buf = NULL; struct dlm_work_item *item = NULL; struct dlm_lock_resource *res = NULL; @@ -1404,16 +1405,28 @@ int dlm_mig_lockres_handler(struct o2net_msg *msg, u32 len, void *data, __dlm_insert_lockres(dlm, res); spin_unlock(&dlm->spinlock); + /* Add an extra ref for this lock-less lockres lest the + * dlm_thread purges it before we get the chance to add + * locks to it */ + dlm_lockres_get(res); + + /* There are three refs that need to be put. + * 1. Taken above. + * 2. kref_init in dlm_new_lockres()->dlm_init_lockres(). + * 3. dlm_lookup_lockres() + * The first one is handled at the end of this function. The + * other two are handled in the worker thread after locks have + * been attached. Yes, we don't wait for purge time to match + * kref_init. The lockres will still have atleast one ref + * added because it is in the hash __dlm_insert_lockres() */ + extra_refs++; + /* now that the new lockres is inserted, * make it usable by other processes */ spin_lock(&res->spinlock); res->state &= ~DLM_LOCK_RES_IN_PROGRESS; spin_unlock(&res->spinlock); wake_up(&res->wq); - - /* add an extra ref for just-allocated lockres - * otherwise the lockres will be purged immediately */ - dlm_lockres_get(res); } /* at this point we have allocated everything we need, @@ -1443,12 +1456,17 @@ int dlm_mig_lockres_handler(struct o2net_msg *msg, u32 len, void *data, dlm_init_work_item(dlm, item, dlm_mig_lockres_worker, buf); item->u.ml.lockres = res; /* already have a ref */ item->u.ml.real_master = real_master; + item->u.ml.extra_ref = extra_refs; spin_lock(&dlm->work_lock); list_add_tail(&item->list, &dlm->work_list); spin_unlock(&dlm->work_lock); queue_work(dlm->dlm_worker, &dlm->dispatched_work); leave: + /* One extra ref taken needs to be put here */ + if (extra_refs) + dlm_lockres_put(res); + dlm_put(dlm); if (ret < 0) { if (buf) @@ -1464,17 +1482,19 @@ leave: static void dlm_mig_lockres_worker(struct dlm_work_item *item, void *data) { - struct dlm_ctxt *dlm = data; + struct dlm_ctxt *dlm; struct dlm_migratable_lockres *mres; int ret = 0; struct dlm_lock_resource *res; u8 real_master; + u8 extra_ref; dlm = item->dlm; mres = (struct dlm_migratable_lockres *)data; res = item->u.ml.lockres; real_master = item->u.ml.real_master; + extra_ref = item->u.ml.extra_ref; if (real_master == DLM_LOCK_RES_OWNER_UNKNOWN) { /* this case is super-rare. only occurs if @@ -1517,6 +1537,12 @@ again: } leave: + /* See comment in dlm_mig_lockres_handler() */ + if (res) { + if (extra_ref) + dlm_lockres_put(res); + dlm_lockres_put(res); + } kfree(data); mlog_exit(ret); } @@ -1644,7 +1670,8 @@ int dlm_master_requery_handler(struct o2net_msg *msg, u32 len, void *data, /* retry!? */ BUG(); } - } + } else /* put.. incase we are not the master */ + dlm_lockres_put(res); spin_unlock(&res->spinlock); } spin_unlock(&dlm->spinlock); @@ -1921,6 +1948,7 @@ void dlm_move_lockres_to_recovery_list(struct dlm_ctxt *dlm, "Recovering res %s:%.*s, is already on recovery list!\n", dlm->name, res->lockname.len, res->lockname.name); list_del_init(&res->recovering); + dlm_lockres_put(res); } /* We need to hold a reference while on the recovery list */ dlm_lockres_get(res); @@ -2130,11 +2158,16 @@ static void dlm_free_dead_locks(struct dlm_ctxt *dlm, assert_spin_locked(&dlm->spinlock); assert_spin_locked(&res->spinlock); + /* We do two dlm_lock_put(). One for removing from list and the other is + * to force the DLM_UNLOCK_FREE_LOCK action so as to free the locks */ + /* TODO: check pending_asts, pending_basts here */ list_for_each_entry_safe(lock, next, &res->granted, list) { if (lock->ml.node == dead_node) { list_del_init(&lock->list); dlm_lock_put(lock); + /* Can't schedule DLM_UNLOCK_FREE_LOCK - do manually */ + dlm_lock_put(lock); freed++; } } @@ -2142,6 +2175,8 @@ static void dlm_free_dead_locks(struct dlm_ctxt *dlm, if (lock->ml.node == dead_node) { list_del_init(&lock->list); dlm_lock_put(lock); + /* Can't schedule DLM_UNLOCK_FREE_LOCK - do manually */ + dlm_lock_put(lock); freed++; } } @@ -2149,6 +2184,8 @@ static void dlm_free_dead_locks(struct dlm_ctxt *dlm, if (lock->ml.node == dead_node) { list_del_init(&lock->list); dlm_lock_put(lock); + /* Can't schedule DLM_UNLOCK_FREE_LOCK - do manually */ + dlm_lock_put(lock); freed++; } } diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c index cebd089f8955..4060bb328bc8 100644 --- a/fs/ocfs2/dlm/dlmthread.c +++ b/fs/ocfs2/dlm/dlmthread.c @@ -176,12 +176,14 @@ static int dlm_purge_lockres(struct dlm_ctxt *dlm, res->lockname.name, master); if (!master) { + /* drop spinlock... retake below */ + spin_unlock(&dlm->spinlock); + spin_lock(&res->spinlock); /* This ensures that clear refmap is sent after the set */ __dlm_wait_on_lockres_flags(res, DLM_LOCK_RES_SETREF_INPROG); spin_unlock(&res->spinlock); - /* drop spinlock to do messaging, retake below */ - spin_unlock(&dlm->spinlock); + /* clear our bit from the master's refmap, ignore errors */ ret = dlm_drop_lockres_ref(dlm, res); if (ret < 0) { diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 351130c9b734..1f1873bf41fb 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -2409,7 +2409,7 @@ static int ocfs2_dlm_seq_show(struct seq_file *m, void *v) return 0; } -static struct seq_operations ocfs2_dlm_seq_ops = { +static const struct seq_operations ocfs2_dlm_seq_ops = { .start = ocfs2_dlm_seq_start, .stop = ocfs2_dlm_seq_stop, .next = ocfs2_dlm_seq_next, @@ -3042,7 +3042,7 @@ static int ocfs2_data_convert_worker(struct ocfs2_lock_res *lockres, inode = ocfs2_lock_res_inode(lockres); mapping = inode->i_mapping; - if (S_ISREG(inode->i_mode)) + if (!S_ISREG(inode->i_mode)) goto out; /* @@ -3219,8 +3219,8 @@ static int ocfs2_dentry_convert_worker(struct ocfs2_lock_res *lockres, return UNBLOCK_CONTINUE_POST; } -void ocfs2_process_blocked_lock(struct ocfs2_super *osb, - struct ocfs2_lock_res *lockres) +static void ocfs2_process_blocked_lock(struct ocfs2_super *osb, + struct ocfs2_lock_res *lockres) { int status; struct ocfs2_unblock_ctl ctl = {0, 0,}; @@ -3356,7 +3356,7 @@ static int ocfs2_downconvert_thread_should_wake(struct ocfs2_super *osb) return should_wake; } -int ocfs2_downconvert_thread(void *arg) +static int ocfs2_downconvert_thread(void *arg) { int status = 0; struct ocfs2_super *osb = arg; diff --git a/fs/ocfs2/dlmglue.h b/fs/ocfs2/dlmglue.h index 1d5b0699d0a9..e3cf902404b4 100644 --- a/fs/ocfs2/dlmglue.h +++ b/fs/ocfs2/dlmglue.h @@ -109,8 +109,6 @@ void ocfs2_simple_drop_lockres(struct ocfs2_super *osb, struct ocfs2_lock_res *lockres); /* for the downconvert thread */ -void ocfs2_process_blocked_lock(struct ocfs2_super *osb, - struct ocfs2_lock_res *lockres); void ocfs2_wake_downconvert_thread(struct ocfs2_super *osb); struct ocfs2_dlm_debug *ocfs2_new_dlm_debug(void); diff --git a/fs/ocfs2/heartbeat.c b/fs/ocfs2/heartbeat.c index c0efd9489fe8..0758daf64da0 100644 --- a/fs/ocfs2/heartbeat.c +++ b/fs/ocfs2/heartbeat.c @@ -49,10 +49,15 @@ static inline void __ocfs2_node_map_set_bit(struct ocfs2_node_map *map, static inline void __ocfs2_node_map_clear_bit(struct ocfs2_node_map *map, int bit); static inline int __ocfs2_node_map_is_empty(struct ocfs2_node_map *map); -static void __ocfs2_node_map_dup(struct ocfs2_node_map *target, - struct ocfs2_node_map *from); -static void __ocfs2_node_map_set(struct ocfs2_node_map *target, - struct ocfs2_node_map *from); + +/* special case -1 for now + * TODO: should *really* make sure the calling func never passes -1!! */ +static void ocfs2_node_map_init(struct ocfs2_node_map *map) +{ + map->num_nodes = OCFS2_NODE_MAP_MAX_NODES; + memset(map->map, 0, BITS_TO_LONGS(OCFS2_NODE_MAP_MAX_NODES) * + sizeof(unsigned long)); +} void ocfs2_init_node_maps(struct ocfs2_super *osb) { @@ -136,15 +141,6 @@ void ocfs2_stop_heartbeat(struct ocfs2_super *osb) mlog_errno(ret); } -/* special case -1 for now - * TODO: should *really* make sure the calling func never passes -1!! */ -void ocfs2_node_map_init(struct ocfs2_node_map *map) -{ - map->num_nodes = OCFS2_NODE_MAP_MAX_NODES; - memset(map->map, 0, BITS_TO_LONGS(OCFS2_NODE_MAP_MAX_NODES) * - sizeof(unsigned long)); -} - static inline void __ocfs2_node_map_set_bit(struct ocfs2_node_map *map, int bit) { @@ -216,6 +212,8 @@ int ocfs2_node_map_is_empty(struct ocfs2_super *osb, return ret; } +#if 0 + static void __ocfs2_node_map_dup(struct ocfs2_node_map *target, struct ocfs2_node_map *from) { @@ -254,6 +252,8 @@ static void __ocfs2_node_map_set(struct ocfs2_node_map *target, target->map[i] = from->map[i]; } +#endif /* 0 */ + /* Returns whether the recovery bit was actually set - it may not be * if a node is still marked as needing recovery */ int ocfs2_recovery_map_set(struct ocfs2_super *osb, diff --git a/fs/ocfs2/heartbeat.h b/fs/ocfs2/heartbeat.h index 56859211888a..eac63aed7611 100644 --- a/fs/ocfs2/heartbeat.h +++ b/fs/ocfs2/heartbeat.h @@ -33,7 +33,6 @@ void ocfs2_stop_heartbeat(struct ocfs2_super *osb); /* node map functions - used to keep track of mounted and in-recovery * nodes. */ -void ocfs2_node_map_init(struct ocfs2_node_map *map); int ocfs2_node_map_is_empty(struct ocfs2_super *osb, struct ocfs2_node_map *map); void ocfs2_node_map_set_bit(struct ocfs2_super *osb, @@ -57,9 +56,5 @@ int ocfs2_recovery_map_set(struct ocfs2_super *osb, int num); void ocfs2_recovery_map_clear(struct ocfs2_super *osb, int num); -/* returns 1 if bit is the only bit set in target, 0 otherwise */ -int ocfs2_node_map_is_only(struct ocfs2_super *osb, - struct ocfs2_node_map *target, - int bit); #endif /* OCFS2_HEARTBEAT_H */ diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c index add1ffdc5c6c..ab83fd562429 100644 --- a/fs/ocfs2/localalloc.c +++ b/fs/ocfs2/localalloc.c @@ -120,9 +120,6 @@ int ocfs2_load_local_alloc(struct ocfs2_super *osb) mlog_entry_void(); - if (ocfs2_mount_local(osb)) - goto bail; - if (osb->local_alloc_size == 0) goto bail; @@ -588,8 +585,7 @@ int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb, while(bits_wanted--) ocfs2_set_bit(start++, bitmap); - alloc->id1.bitmap1.i_used = cpu_to_le32(*num_bits + - le32_to_cpu(alloc->id1.bitmap1.i_used)); + le32_add_cpu(&alloc->id1.bitmap1.i_used, *num_bits); status = ocfs2_journal_dirty(handle, osb->local_alloc_bh); if (status < 0) { diff --git a/fs/ocfs2/resize.c b/fs/ocfs2/resize.c index 37835ffcb039..8166968e9015 100644 --- a/fs/ocfs2/resize.c +++ b/fs/ocfs2/resize.c @@ -597,7 +597,7 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input) memset(cr, 0, sizeof(struct ocfs2_chain_rec)); } - cr->c_blkno = le64_to_cpu(input->group); + cr->c_blkno = cpu_to_le64(input->group); le32_add_cpu(&cr->c_total, input->clusters * cl_bpc); le32_add_cpu(&cr->c_free, input->frees * cl_bpc); diff --git a/fs/proc/base.c b/fs/proc/base.c index 3217774d269f..9a4da0aae02e 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -314,9 +314,12 @@ static int proc_pid_schedstat(struct task_struct *task, char *buffer) static int lstats_show_proc(struct seq_file *m, void *v) { int i; - struct task_struct *task = m->private; - seq_puts(m, "Latency Top version : v0.1\n"); + struct inode *inode = m->private; + struct task_struct *task = get_proc_task(inode); + if (!task) + return -ESRCH; + seq_puts(m, "Latency Top version : v0.1\n"); for (i = 0; i < 32; i++) { if (task->latency_record[i].backtrace[0]) { int q; @@ -341,32 +344,24 @@ static int lstats_show_proc(struct seq_file *m, void *v) } } + put_task_struct(task); return 0; } static int lstats_open(struct inode *inode, struct file *file) { - int ret; - struct seq_file *m; - struct task_struct *task = get_proc_task(inode); - - ret = single_open(file, lstats_show_proc, NULL); - if (!ret) { - m = file->private_data; - m->private = task; - } - return ret; + return single_open(file, lstats_show_proc, inode); } static ssize_t lstats_write(struct file *file, const char __user *buf, size_t count, loff_t *offs) { - struct seq_file *m; - struct task_struct *task; + struct task_struct *task = get_proc_task(file->f_dentry->d_inode); - m = file->private_data; - task = m->private; + if (!task) + return -ESRCH; clear_all_latency_tracing(task); + put_task_struct(task); return count; } diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c index 468805d40e2b..2d563979cb02 100644 --- a/fs/proc/proc_misc.c +++ b/fs/proc/proc_misc.c @@ -32,6 +32,7 @@ #include <linux/interrupt.h> #include <linux/swap.h> #include <linux/slab.h> +#include <linux/genhd.h> #include <linux/smp.h> #include <linux/signal.h> #include <linux/module.h> @@ -377,7 +378,6 @@ static int stram_read_proc(char *page, char **start, off_t off, #endif #ifdef CONFIG_BLOCK -extern const struct seq_operations partitions_op; static int partitions_open(struct inode *inode, struct file *file) { return seq_open(file, &partitions_op); @@ -389,7 +389,6 @@ static const struct file_operations proc_partitions_operations = { .release = seq_release, }; -extern const struct seq_operations diskstats_op; static int diskstats_open(struct inode *inode, struct file *file) { return seq_open(file, &diskstats_op); diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 6dc0334815f7..4206454734e0 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -640,17 +640,17 @@ static ssize_t pagemap_read(struct file *file, char __user *buf, ret = -EACCES; if (!ptrace_may_attach(task)) - goto out; + goto out_task; ret = -EINVAL; /* file position must be aligned */ if (*ppos % PM_ENTRY_BYTES) - goto out; + goto out_task; ret = 0; mm = get_task_mm(task); if (!mm) - goto out; + goto out_task; ret = -ENOMEM; uaddr = (unsigned long)buf & PAGE_MASK; @@ -658,7 +658,7 @@ static ssize_t pagemap_read(struct file *file, char __user *buf, pagecount = (PAGE_ALIGN(uend) - uaddr) / PAGE_SIZE; pages = kmalloc(pagecount * sizeof(struct page *), GFP_KERNEL); if (!pages) - goto out_task; + goto out_mm; down_read(¤t->mm->mmap_sem); ret = get_user_pages(current, current->mm, uaddr, pagecount, @@ -668,6 +668,12 @@ static ssize_t pagemap_read(struct file *file, char __user *buf, if (ret < 0) goto out_free; + if (ret != pagecount) { + pagecount = ret; + ret = -EFAULT; + goto out_pages; + } + pm.out = buf; pm.end = buf + count; @@ -699,15 +705,17 @@ static ssize_t pagemap_read(struct file *file, char __user *buf, ret = pm.out - buf; } +out_pages: for (; pagecount; pagecount--) { page = pages[pagecount-1]; if (!PageReserved(page)) SetPageDirty(page); page_cache_release(page); } - mmput(mm); out_free: kfree(pages); +out_mm: + mmput(mm); out_task: put_task_struct(task); out: diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index 6841452e0dea..393cc22c1717 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -2031,7 +2031,7 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id, return -EXDEV; } /* We must not pack tails for quota files on reiserfs for quota IO to work */ - if (!REISERFS_I(nd.path.dentry->d_inode)->i_flags & i_nopack_mask) { + if (!(REISERFS_I(nd.path.dentry->d_inode)->i_flags & i_nopack_mask)) { reiserfs_warning(sb, "reiserfs: Quota file must have tail packing disabled."); path_put(&nd.path); diff --git a/fs/splice.c b/fs/splice.c index 9b559ee711a8..0670c915cd35 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -1669,6 +1669,13 @@ static int link_pipe(struct pipe_inode_info *ipipe, i++; } while (len); + /* + * return EAGAIN if we have the potential of some data in the + * future, otherwise just return 0 + */ + if (!ret && ipipe->waiting_writers && (flags & SPLICE_F_NONBLOCK)) + ret = -EAGAIN; + inode_double_unlock(ipipe->inode, opipe->inode); /* @@ -1709,11 +1716,8 @@ static long do_tee(struct file *in, struct file *out, size_t len, ret = link_ipipe_prep(ipipe, flags); if (!ret) { ret = link_opipe_prep(opipe, flags); - if (!ret) { + if (!ret) ret = link_pipe(ipipe, opipe, len, flags); - if (!ret && (flags & SPLICE_F_NONBLOCK)) - ret = -EAGAIN; - } } } diff --git a/fs/super.c b/fs/super.c index 88811f60c8de..010446d8c40a 100644 --- a/fs/super.c +++ b/fs/super.c @@ -870,12 +870,12 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void if (!mnt) goto out; - if (data) { + if (data && !(type->fs_flags & FS_BINARY_MOUNTDATA)) { secdata = alloc_secdata(); if (!secdata) goto out_mnt; - error = security_sb_copy_data(type, data, secdata); + error = security_sb_copy_data(data, secdata); if (error) goto out_free_secdata; } diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c index 21dfc9da235e..8831d9518790 100644 --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -171,7 +171,7 @@ xfs_parseargs( char *this_char, *value, *eov; int dsunit, dswidth, vol_dsunit, vol_dswidth; int iosize; - int ikeep = 0; + int dmapi_implies_ikeep = 1; args->flags |= XFSMNT_BARRIER; args->flags2 |= XFSMNT2_COMPAT_IOSIZE; @@ -302,10 +302,10 @@ xfs_parseargs( } else if (!strcmp(this_char, MNTOPT_NOBARRIER)) { args->flags &= ~XFSMNT_BARRIER; } else if (!strcmp(this_char, MNTOPT_IKEEP)) { - ikeep = 1; - args->flags &= ~XFSMNT_IDELETE; + args->flags |= XFSMNT_IKEEP; } else if (!strcmp(this_char, MNTOPT_NOIKEEP)) { - args->flags |= XFSMNT_IDELETE; + dmapi_implies_ikeep = 0; + args->flags &= ~XFSMNT_IKEEP; } else if (!strcmp(this_char, MNTOPT_LARGEIO)) { args->flags2 &= ~XFSMNT2_COMPAT_IOSIZE; } else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) { @@ -410,8 +410,8 @@ xfs_parseargs( * Note that if "ikeep" or "noikeep" mount options are * supplied, then they are honored. */ - if (!(args->flags & XFSMNT_DMAPI) && !ikeep) - args->flags |= XFSMNT_IDELETE; + if ((args->flags & XFSMNT_DMAPI) && dmapi_implies_ikeep) + args->flags |= XFSMNT_IKEEP; if ((args->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) { if (dsunit) { @@ -446,6 +446,7 @@ xfs_showargs( { static struct proc_xfs_info xfs_info_set[] = { /* the few simple ones we can get from the mount struct */ + { XFS_MOUNT_IKEEP, "," MNTOPT_IKEEP }, { XFS_MOUNT_WSYNC, "," MNTOPT_WSYNC }, { XFS_MOUNT_INO64, "," MNTOPT_INO64 }, { XFS_MOUNT_NOALIGN, "," MNTOPT_NOALIGN }, @@ -461,7 +462,6 @@ xfs_showargs( }; static struct proc_xfs_info xfs_info_unset[] = { /* the few simple ones we can get from the mount struct */ - { XFS_MOUNT_IDELETE, "," MNTOPT_IKEEP }, { XFS_MOUNT_COMPAT_IOSIZE, "," MNTOPT_LARGEIO }, { XFS_MOUNT_BARRIER, "," MNTOPT_NOBARRIER }, { XFS_MOUNT_SMALL_INUMS, "," MNTOPT_64BITINODE }, diff --git a/fs/xfs/xfs_bit.c b/fs/xfs/xfs_bit.c index 48228848f5ae..fab0b6d5a41b 100644 --- a/fs/xfs/xfs_bit.c +++ b/fs/xfs/xfs_bit.c @@ -25,6 +25,109 @@ * XFS bit manipulation routines, used in non-realtime code. */ +#ifndef HAVE_ARCH_HIGHBIT +/* + * Index of high bit number in byte, -1 for none set, 0..7 otherwise. + */ +static const char xfs_highbit[256] = { + -1, 0, 1, 1, 2, 2, 2, 2, /* 00 .. 07 */ + 3, 3, 3, 3, 3, 3, 3, 3, /* 08 .. 0f */ + 4, 4, 4, 4, 4, 4, 4, 4, /* 10 .. 17 */ + 4, 4, 4, 4, 4, 4, 4, 4, /* 18 .. 1f */ + 5, 5, 5, 5, 5, 5, 5, 5, /* 20 .. 27 */ + 5, 5, 5, 5, 5, 5, 5, 5, /* 28 .. 2f */ + 5, 5, 5, 5, 5, 5, 5, 5, /* 30 .. 37 */ + 5, 5, 5, 5, 5, 5, 5, 5, /* 38 .. 3f */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 40 .. 47 */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 48 .. 4f */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 50 .. 57 */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 58 .. 5f */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 60 .. 67 */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 68 .. 6f */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 70 .. 77 */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 78 .. 7f */ + 7, 7, 7, 7, 7, 7, 7, 7, /* 80 .. 87 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* 88 .. 8f */ + 7, 7, 7, 7, 7, 7, 7, 7, /* 90 .. 97 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* 98 .. 9f */ + 7, 7, 7, 7, 7, 7, 7, 7, /* a0 .. a7 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* a8 .. af */ + 7, 7, 7, 7, 7, 7, 7, 7, /* b0 .. b7 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* b8 .. bf */ + 7, 7, 7, 7, 7, 7, 7, 7, /* c0 .. c7 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* c8 .. cf */ + 7, 7, 7, 7, 7, 7, 7, 7, /* d0 .. d7 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* d8 .. df */ + 7, 7, 7, 7, 7, 7, 7, 7, /* e0 .. e7 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* e8 .. ef */ + 7, 7, 7, 7, 7, 7, 7, 7, /* f0 .. f7 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* f8 .. ff */ +}; +#endif + +/* + * xfs_highbit32: get high bit set out of 32-bit argument, -1 if none set. + */ +inline int +xfs_highbit32( + __uint32_t v) +{ +#ifdef HAVE_ARCH_HIGHBIT + return highbit32(v); +#else + int i; + + if (v & 0xffff0000) + if (v & 0xff000000) + i = 24; + else + i = 16; + else if (v & 0x0000ffff) + if (v & 0x0000ff00) + i = 8; + else + i = 0; + else + return -1; + return i + xfs_highbit[(v >> i) & 0xff]; +#endif +} + +/* + * xfs_lowbit64: get low bit set out of 64-bit argument, -1 if none set. + */ +int +xfs_lowbit64( + __uint64_t v) +{ + __uint32_t w = (__uint32_t)v; + int n = 0; + + if (w) { /* lower bits */ + n = ffs(w); + } else { /* upper bits */ + w = (__uint32_t)(v >> 32); + if (w && (n = ffs(w))) + n += 32; + } + return n - 1; +} + +/* + * xfs_highbit64: get high bit set out of 64-bit argument, -1 if none set. + */ +int +xfs_highbit64( + __uint64_t v) +{ + __uint32_t h = (__uint32_t)(v >> 32); + + if (h) + return xfs_highbit32(h) + 32; + return xfs_highbit32((__uint32_t)v); +} + + /* * Return whether bitmap is empty. * Size is number of words in the bitmap, which is padded to word boundary diff --git a/fs/xfs/xfs_bit.h b/fs/xfs/xfs_bit.h index 325a007dec91..082641a9782c 100644 --- a/fs/xfs/xfs_bit.h +++ b/fs/xfs/xfs_bit.h @@ -47,30 +47,13 @@ static inline __uint64_t xfs_mask64lo(int n) } /* Get high bit set out of 32-bit argument, -1 if none set */ -static inline int xfs_highbit32(__uint32_t v) -{ - return fls(v) - 1; -} - -/* Get high bit set out of 64-bit argument, -1 if none set */ -static inline int xfs_highbit64(__uint64_t v) -{ - return fls64(v) - 1; -} - -/* Get low bit set out of 32-bit argument, -1 if none set */ -static inline int xfs_lowbit32(__uint32_t v) -{ - __uint32_t t = v; - return (t) ? find_first_bit((unsigned long *)&t, 32) : -1; -} +extern int xfs_highbit32(__uint32_t v); /* Get low bit set out of 64-bit argument, -1 if none set */ -static inline int xfs_lowbit64(__uint64_t v) -{ - __uint64_t t = v; - return (t) ? find_first_bit((unsigned long *)&t, 64) : -1; -} +extern int xfs_lowbit64(__uint64_t v); + +/* Get high bit set out of 64-bit argument, -1 if none set */ +extern int xfs_highbit64(__uint64_t); /* Return whether bitmap is empty (1 == empty) */ extern int xfs_bitmap_empty(uint *map, uint size); diff --git a/fs/xfs/xfs_clnt.h b/fs/xfs/xfs_clnt.h index d16c1b971074..d5d1e60ee224 100644 --- a/fs/xfs/xfs_clnt.h +++ b/fs/xfs/xfs_clnt.h @@ -86,7 +86,7 @@ struct xfs_mount_args { #define XFSMNT_NOUUID 0x01000000 /* Ignore fs uuid */ #define XFSMNT_DMAPI 0x02000000 /* enable dmapi/xdsm */ #define XFSMNT_BARRIER 0x04000000 /* use write barriers */ -#define XFSMNT_IDELETE 0x08000000 /* inode cluster delete */ +#define XFSMNT_IKEEP 0x08000000 /* inode cluster delete */ #define XFSMNT_SWALLOC 0x10000000 /* turn on stripe width * allocation */ #define XFSMNT_DIRSYNC 0x40000000 /* sync creat,link,unlink,rename diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index c5836b951d0c..db9d5fa600af 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -1053,7 +1053,7 @@ xfs_difree( /* * When an inode cluster is free, it becomes eligible for removal */ - if ((mp->m_flags & XFS_MOUNT_IDELETE) && + if (!(mp->m_flags & XFS_MOUNT_IKEEP) && (rec.ir_freecount == XFS_IALLOC_INODES(mp))) { *delete = 1; diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index f01b07687faf..8e09b71f4104 100644 --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -235,6 +235,7 @@ finish_inode: */ new_icl = kmem_zone_alloc(xfs_icluster_zone, KM_SLEEP); if (radix_tree_preload(GFP_KERNEL)) { + xfs_idestroy(ip); delay(1); goto again; } diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index f7c620ec6e69..1d8a4728d847 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -366,7 +366,7 @@ typedef struct xfs_mount { #define XFS_MOUNT_SMALL_INUMS (1ULL << 15) /* users wants 32bit inodes */ #define XFS_MOUNT_NOUUID (1ULL << 16) /* ignore uuid during mount */ #define XFS_MOUNT_BARRIER (1ULL << 17) -#define XFS_MOUNT_IDELETE (1ULL << 18) /* delete empty inode clusters*/ +#define XFS_MOUNT_IKEEP (1ULL << 18) /* keep empty inode clusters*/ #define XFS_MOUNT_SWALLOC (1ULL << 19) /* turn on stripe width * allocation */ #define XFS_MOUNT_RDONLY (1ULL << 20) /* read-only fs */ diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index ca83ddf72af4..47082c01872d 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -73,6 +73,18 @@ STATIC int xfs_rtmodify_summary(xfs_mount_t *, xfs_trans_t *, int, */ /* + * xfs_lowbit32: get low bit set out of 32-bit argument, -1 if none set. + */ +STATIC int +xfs_lowbit32( + __uint32_t v) +{ + if (v) + return ffs(v) - 1; + return -1; +} + +/* * Allocate space to the bitmap or summary file, and zero it, for growfs. */ STATIC int /* error */ @@ -432,7 +444,6 @@ xfs_rtallocate_extent_near( } bbno = XFS_BITTOBLOCK(mp, bno); i = 0; - ASSERT(minlen != 0); log2len = xfs_highbit32(minlen); /* * Loop over all bitmap blocks (bbno + i is current block). @@ -601,8 +612,6 @@ xfs_rtallocate_extent_size( xfs_suminfo_t sum; /* summary information for extents */ ASSERT(minlen % prod == 0 && maxlen % prod == 0); - ASSERT(maxlen != 0); - /* * Loop over all the levels starting with maxlen. * At each level, look at all the bitmap blocks, to see if there @@ -660,9 +669,6 @@ xfs_rtallocate_extent_size( *rtblock = NULLRTBLOCK; return 0; } - ASSERT(minlen != 0); - ASSERT(maxlen != 0); - /* * Loop over sizes, from maxlen down to minlen. * This time, when we do the allocations, allow smaller ones @@ -1948,7 +1954,6 @@ xfs_growfs_rt( nsbp->sb_blocksize * nsbp->sb_rextsize); nsbp->sb_rextents = nsbp->sb_rblocks; do_div(nsbp->sb_rextents, nsbp->sb_rextsize); - ASSERT(nsbp->sb_rextents != 0); nsbp->sb_rextslog = xfs_highbit32(nsbp->sb_rextents); nrsumlevels = nmp->m_rsumlevels = nsbp->sb_rextslog + 1; nrsumsize = diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c index 4d6330eddc8d..76d470d8a1e6 100644 --- a/fs/xfs/xfs_trans_ail.c +++ b/fs/xfs/xfs_trans_ail.c @@ -261,16 +261,19 @@ xfsaild_push( xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE); } - /* - * We reached the target so wait a bit longer for I/O to complete and - * remove pushed items from the AIL before we start the next scan from - * the start of the AIL. - */ - if ((XFS_LSN_CMP(lsn, target) >= 0)) { + if (!count) { + /* We're past our target or empty, so idle */ + tout = 1000; + } else if (XFS_LSN_CMP(lsn, target) >= 0) { + /* + * We reached the target so wait a bit longer for I/O to + * complete and remove pushed items from the AIL before we + * start the next scan from the start of the AIL. + */ tout += 20; last_pushed_lsn = 0; } else if ((restarts > XFS_TRANS_PUSH_AIL_RESTARTS) || - (count && ((stuck * 100) / count > 90))) { + ((stuck * 100) / count > 90)) { /* * Either there is a lot of contention on the AIL or we * are stuck due to operations in progress. "Stuck" in this diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c index 413587f02155..7321304a69cc 100644 --- a/fs/xfs/xfs_vfsops.c +++ b/fs/xfs/xfs_vfsops.c @@ -281,8 +281,8 @@ xfs_start_flags( mp->m_readio_log = mp->m_writeio_log = ap->iosizelog; } - if (ap->flags & XFSMNT_IDELETE) - mp->m_flags |= XFS_MOUNT_IDELETE; + if (ap->flags & XFSMNT_IKEEP) + mp->m_flags |= XFS_MOUNT_IKEEP; if (ap->flags & XFSMNT_DIRSYNC) mp->m_flags |= XFS_MOUNT_DIRSYNC; if (ap->flags & XFSMNT_ATTR2) |