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2012-01-18CIFS: Rename *UCS* functions to *UTF16*Steve French8-138/+146
to reflect the unicode encoding used by CIFS protocol. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Acked-by: Jeff Layton <jlayton@samba.org> Reviewed-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
2012-01-18[CIFS] ACL and FSCACHE support no longer EXPERIMENTALSteve French1-2/+1
CIFS ACL support and FSCACHE support have been in long enough to be no longer considered experimental. Remove obsolete Kconfig dependency. Signed-off-by: Steve French <sfrench@us.ibm.com> Acked-by: Jeff Layton <jlayton@redhat.com>
2012-01-18[CIFS] Fix build break with multiuser patch when LANMAN disabledSteve French1-0/+2
CC: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-01-17cifs: warn about impending deprecation of legacy MultiuserMount codeJeff Layton1-1/+10
We'll allow a grace period of 2 releases (3.3 and 3.4) and then remove the legacy code in 3.5. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-01-17cifs: fetch credentials out of keyring for non-krb5 auth multiuser mountsJeff Layton1-10/+165
Fix up multiuser mounts to set the secType and set the username and password from the key payload in the vol info for non-krb5 auth types. Look for a key of type "secret" with a description of "cifs:a:<server address>" or "cifs:d:<domainname>". If that's found, then scrape the username and password out of the key payload and use that to create a new user session. Finally, don't have the code enforce krb5 auth on multiuser mounts, but do require a kernel with keys support. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-01-17cifs: sanitize username handlingJeff Layton3-13/+27
Currently, it's not very clear whether you're allowed to have a NULL vol->username or ses->user_name. Some places check for it and some don't. Make it clear that a NULL pointer is OK in these fields, and ensure that all the callers check for that. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-01-17cifs: lower default wsize when unix extensions are not usedJeff Layton1-4/+19
We've had some reports of servers (namely, the Solaris in-kernel CIFS server) that don't deal properly with writes that are "too large" even though they set CAP_LARGE_WRITE_ANDX. Change the default to better mirror what windows clients do. Cc: stable@vger.kernel.org Cc: Pavel Shilovsky <piastry@etersoft.ru> Reported-by: Nick Davis <phireph0x@yahoo.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-01-17cifs: better instrumentation for coalesce_t2Jeff Layton1-34/+50
When coalesce_t2 returns an error, have it throw a cFYI message that explains the reason. Also rename some variables to clarify what they represent. Reported-and-Tested-by: Konstantinos Skarlatos <k.skarlatos@gmail.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-01-12cifs: integer overflow in parse_dacl()Dan Carpenter1-0/+2
On 32 bit systems num_aces * sizeof(struct cifs_ace *) could overflow leading to a smaller ppace buffer than we expected. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Jeff Layton <jlayton@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-01-08Merge branch 'for-linus2' of ↵Linus Torvalds7-17/+17
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs * 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (165 commits) reiserfs: Properly display mount options in /proc/mounts vfs: prevent remount read-only if pending removes vfs: count unlinked inodes vfs: protect remounting superblock read-only vfs: keep list of mounts for each superblock vfs: switch ->show_options() to struct dentry * vfs: switch ->show_path() to struct dentry * vfs: switch ->show_devname() to struct dentry * vfs: switch ->show_stats to struct dentry * switch security_path_chmod() to struct path * vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb vfs: trim includes a bit switch mnt_namespace ->root to struct mount vfs: take /proc/*/mounts and friends to fs/proc_namespace.c vfs: opencode mntget() mnt_set_mountpoint() vfs: spread struct mount - remaining argument of next_mnt() vfs: move fsnotify junk to struct mount vfs: move mnt_devname vfs: move mnt_list to struct mount vfs: switch pnode.h macros to struct mount * ...
2012-01-06vfs: switch ->show_options() to struct dentry *Al Viro1-3/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-06vfs: switch ->show_stats to struct dentry *Al Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04[CIFS] default ntlmv2 for cifs mount delayed to 3.3Steve French1-1/+1
Turned out the ntlmv2 (default security authentication) upgrade was harder to test than expected, and we ran out of time to test against Apple and a few other servers that we wanted to. Delay upgrade of default security from ntlm to ntlmv2 (on mount) to 3.3. Still works fine to specify it explicitly via "sec=ntlmv2" so this should be fine. Acked-by: Jeff Layton <jlayton@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-01-03cifs: propagate umode_tAl Viro4-6/+6
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03switch ->mknod() to umode_tAl Viro2-2/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03switch ->create() to umode_tAl Viro2-2/+2
vfs_create() ignores everything outside of 16bit subset of its mode argument; switching it to umode_t is obviously equivalent and it's the only caller of the method Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03switch vfs_mkdir() and ->mkdir() to umode_tAl Viro2-3/+3
vfs_mkdir() gets int, but immediately drops everything that might not fit into umode_t and that's the only caller of ->mkdir()... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03cifs: fix bad buffer length check in coalesce_t2Jeff Layton1-1/+1
The current check looks to see if the RFC1002 length is larger than CIFSMaxBufSize, and fails if it is. The buffer is actually larger than that by MAX_CIFS_HDR_SIZE. This bug has been around for a long time, but the fact that we used to cap the clients MaxBufferSize at the same level as the server tended to paper over it. Commit c974befa changed that however and caused this bug to bite in more cases. Reported-and-Tested-by: Konstantinos Skarlatos <k.skarlatos@gmail.com> Tested-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2011-12-08cifs: check for NULL last_entry before calling cifs_save_resume_keyJeff Layton1-2/+8
Prior to commit eaf35b1, cifs_save_resume_key had some NULL pointer checks at the top. It turns out that at least one of those NULL pointer checks is needed after all. When the LastNameOffset in a FIND reply appears to be beyond the end of the buffer, CIFSFindFirst and CIFSFindNext will set srch_inf.last_entry to NULL. Since eaf35b1, the code will now oops in this situation. Fix this by having the callers check for a NULL last entry pointer before calling cifs_save_resume_key. No change is needed for the call site in cifs_readdir as it's not reachable with a NULL current_entry pointer. This should fix: https://bugzilla.redhat.com/show_bug.cgi?id=750247 Cc: stable@vger.kernel.org Cc: Christoph Hellwig <hch@infradead.org> Reported-by: Adam G. Metzler <adamgmetzler@gmail.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2011-12-08cifs: attempt to freeze while looping on a receive attemptJeff Layton1-0/+2
In the recent overhaul of the demultiplex thread receive path, I neglected to ensure that we attempt to freeze on each pass through the receive loop. Reported-and-Tested-by: Woody Suwalski <terraluna977@gmail.com> Reported-and-Tested-by: Adam Williamson <awilliam@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2011-12-08cifs: Fix sparse warning when calling cifs_strtoUCSSteve French1-3/+3
Fix sparse endian check warning while calling cifs_strtoUCS CHECK fs/cifs/smbencrypt.c fs/cifs/smbencrypt.c:216:37: warning: incorrect type in argument 1 (different base types) fs/cifs/smbencrypt.c:216:37: expected restricted __le16 [usertype] *<noident> fs/cifs/smbencrypt.c:216:37: got unsigned short *<noident> Signed-off-by: Steve French <smfrench@gmail.com> Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com
2011-12-08CIFS: Add descriptions to the brlock cache functionsPavel Shilovsky1-0/+26
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-11-07Merge git://git.samba.org/sfrench/cifs-2.6Linus Torvalds1-55/+50
* git://git.samba.org/sfrench/cifs-2.6: CIFS: Cleanup byte-range locking code style CIFS: Simplify setlk error handling for mandatory locking
2011-11-06Merge branch 'modsplit-Oct31_2011' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux * 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include <linux/module.h> acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include <linux/module.h> net: sch_generic remove redundant use of <linux/module.h> net: inet_timewait_sock doesnt need <linux/module.h> ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h
2011-11-04CIFS: Cleanup byte-range locking code stylePavel Shilovsky1-24/+19
Reorder parms of cifs_lock_init, trivially simplify getlk code and remove extra {} in cifs_lock_add_if. Cc: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Jeff Layton <jlayton@samba.org> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-11-04CIFS: Simplify setlk error handling for mandatory lockingPavel Shilovsky1-32/+32
Now we allocate a lock structure at first, then we request to the server and save the lock if server returned OK though void function - it prevents the situation when we locked a file on the server and then return -ENOMEM from setlk. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Acked-by: Jeff Layton <jlayton@samba.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-11-03Merge git://git.samba.org/sfrench/cifs-2.6Linus Torvalds7-64/+32
* git://git.samba.org/sfrench/cifs-2.6: cifs: Assume passwords are encoded according to iocharset (try #2) CIFS: Fix the VFS brlock cache usage in posix locking case [CIFS] Update cifs version to 1.76 CIFS: Remove extra mutex_unlock in cifs_lock_add_if
2011-11-02filesystems: add set_nlink()Miklos Szeredi1-3/+3
Replace remaining direct i_nlink updates with a new set_nlink() updater function. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2011-11-02filesystems: add missing nlink wrappersMiklos Szeredi1-1/+1
Replace direct i_nlink updates with the respective updater function (inc_nlink, drop_nlink, clear_nlink, inode_dec_link_count). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2011-10-31fs: add module.h to files that were implicitly using itPaul Gortmaker1-0/+1
Some files were using the complete module.h infrastructure without actually including the header at all. Fix them up in advance so once the implicit presence is removed, we won't get failures like this: CC [M] fs/nfsd/nfssvc.o fs/nfsd/nfssvc.c: In function 'nfsd_create_serv': fs/nfsd/nfssvc.c:335: error: 'THIS_MODULE' undeclared (first use in this function) fs/nfsd/nfssvc.c:335: error: (Each undeclared identifier is reported only once fs/nfsd/nfssvc.c:335: error: for each function it appears in.) fs/nfsd/nfssvc.c: In function 'nfsd': fs/nfsd/nfssvc.c:555: error: implicit declaration of function 'module_put_and_exit' make[3]: *** [fs/nfsd/nfssvc.o] Error 1 Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-29cifs: Assume passwords are encoded according to iocharset (try #2)Shirish Pargaonkar5-60/+23
Re-posting a patch originally posted by Oskar Liljeblad after rebasing on 3.2. Modify cifs to assume that the supplied password is encoded according to iocharset. Before this patch passwords would be treated as raw 8-bit data, which made authentication with Unicode passwords impossible (at least passwords with characters > 0xFF). The previous code would as a side effect accept passwords encoded with ISO 8859-1, since Unicode < 0x100 basically is ISO 8859-1. Software which relies on that will no longer support password chars > 0x7F unless it also uses iocharset=iso8859-1. (mount.cifs does not care about the encoding so it will work as expected.) Signed-off-by: Oskar Liljeblad <oskar@osk.mine.nu> Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru> Tested-by: A <nimbus1_03087@yahoo.com> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-29CIFS: Fix the VFS brlock cache usage in posix locking casePavel Shilovsky1-2/+8
Request to the cache in FL_POSIX case only. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-28[CIFS] Update cifs version to 1.76Steve French1-1/+1
Update cifs version to 1.76 now that async read, lock caching, and changes to oplock enabled interface are in. Thanks to Pavel for reminding me. Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-28CIFS: Remove extra mutex_unlock in cifs_lock_add_ifPavel Shilovsky1-1/+0
to prevent the mutex being unlocked twice if we interrupt a blocked lock. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-28Merge branch 'for-next' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue: (21 commits) leases: fix write-open/read-lease race nfs: drop unnecessary locking in llseek ext4: replace cut'n'pasted llseek code with generic_file_llseek_size vfs: add generic_file_llseek_size vfs: do (nearly) lockless generic_file_llseek direct-io: merge direct_io_walker into __blockdev_direct_IO direct-io: inline the complete submission path direct-io: separate map_bh from dio direct-io: use a slab cache for struct dio direct-io: rearrange fields in dio/dio_submit to avoid holes direct-io: fix a wrong comment direct-io: separate fields only used in the submission path from struct dio vfs: fix spinning prevention in prune_icache_sb vfs: add a comment to inode_permission() vfs: pass all mask flags check_acl and posix_acl_permission vfs: add hex format for MAY_* flag values vfs: indicate that the permission functions take all the MAY_* flags compat: sync compat_stats with statfs. vfs: add "device" tag to /proc/self/mountstats cleanup: vfs: small comment fix for block_invalidatepage ... Fix up trivial conflict in fs/gfs2/file.c (llseek changes)
2011-10-28Merge branch '3.2-without-smb2' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds22-1015/+2229
* '3.2-without-smb2' of git://git.samba.org/sfrench/cifs-2.6: (52 commits) Fix build break when freezer not configured Add definition for share encryption CIFS: Make cifs_push_locks send as many locks at once as possible CIFS: Send as many mandatory unlock ranges at once as possible CIFS: Implement caching mechanism for posix brlocks CIFS: Implement caching mechanism for mandatory brlocks CIFS: Fix DFS handling in cifs_get_file_info CIFS: Fix error handling in cifs_readv_complete [CIFS] Fixup trivial checkpatch warning [CIFS] Show nostrictsync and noperm mount options in /proc/mounts cifs, freezer: add wait_event_freezekillable and have cifs use it cifs: allow cifs_max_pending to be readable under /sys/module/cifs/parameters cifs: tune bdi.ra_pages in accordance with the rsize cifs: allow for larger rsize= options and change defaults cifs: convert cifs_readpages to use async reads cifs: add cifs_async_readv cifs: fix protocol definition for READ_RSP cifs: add a callback function to receive the rest of the frame cifs: break out 3rd receive phase into separate function cifs: find mid earlier in receive codepath ...
2011-10-28vfs: do (nearly) lockless generic_file_llseekAndi Kleen1-1/+1
The i_mutex lock use of generic _file_llseek hurts. Independent processes accessing the same file synchronize over a single lock, even though they have no need for synchronization at all. Under high utilization this can cause llseek to scale very poorly on larger systems. This patch does some rethinking of the llseek locking model: First the 64bit f_pos is not necessarily atomic without locks on 32bit systems. This can already cause races with read() today. This was discussed on linux-kernel in the past and deemed acceptable. The patch does not change that. Let's look at the different seek variants: SEEK_SET: Doesn't really need any locking. If there's a race one writer wins, the other loses. For 32bit the non atomic update races against read() stay the same. Without a lock they can also happen against write() now. The read() race was deemed acceptable in past discussions, and I think if it's ok for read it's ok for write too. => Don't need a lock. SEEK_END: This behaves like SEEK_SET plus it reads the maximum size too. Reading the maximum size would have the 32bit atomic problem. But luckily we already have a way to read the maximum size without locking (i_size_read), so we can just use that instead. Without i_mutex there is no synchronization with write() anymore, however since the write() update is atomic on 64bit it just behaves like another racy SEEK_SET. On non atomic 32bit it's the same as SEEK_SET. => Don't need a lock, but need to use i_size_read() SEEK_CUR: This has a read-modify-write race window on the same file. One could argue that any application doing unsynchronized seeks on the same file is already broken. But for the sake of not adding a regression here I'm using the file->f_lock to synchronize this. Using this lock is much better than the inode mutex because it doesn't synchronize between processes. => So still need a lock, but can use a f_lock. This patch implements this new scheme in generic_file_llseek. I dropped generic_file_llseek_unlocked and changed all callers. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2011-10-27Add definition for share encryptionSteve French1-7/+37
Samba supports a setfs info level to negotiate encrypted shares. This patch adds the defines so we recognize this info level. Later patches will add the enablement for it. Acked-by: Jeremy Allison <jra@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-25Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (59 commits) MAINTAINERS: linux-m32r is moderated for non-subscribers linux@lists.openrisc.net is moderated for non-subscribers Drop default from "DM365 codec select" choice parisc: Kconfig: cleanup Kernel page size default Kconfig: remove redundant CONFIG_ prefix on two symbols cris: remove arch/cris/arch-v32/lib/nand_init.S microblaze: add missing CONFIG_ prefixes h8300: drop puzzling Kconfig dependencies MAINTAINERS: microblaze-uclinux@itee.uq.edu.au is moderated for non-subscribers tty: drop superfluous dependency in Kconfig ARM: mxc: fix Kconfig typo 'i.MX51' Fix file references in Kconfig files aic7xxx: fix Kconfig references to READMEs Fix file references in drivers/ide/ thinkpad_acpi: Fix printk typo 'bluestooth' bcmring: drop commented out line in Kconfig btmrvl_sdio: fix typo 'btmrvl_sdio_sd6888' doc: raw1394: Trivial typo fix CIFS: Don't free volume_info->UNC until we are entirely done with it. treewide: Correct spelling of successfully in comments ...
2011-10-25Merge branch 'next' of git://selinuxproject.org/~jmorris/linux-securityLinus Torvalds1-22/+18
* 'next' of git://selinuxproject.org/~jmorris/linux-security: (95 commits) TOMOYO: Fix incomplete read after seek. Smack: allow to access /smack/access as normal user TOMOYO: Fix unused kernel config option. Smack: fix: invalid length set for the result of /smack/access Smack: compilation fix Smack: fix for /smack/access output, use string instead of byte Smack: domain transition protections (v3) Smack: Provide information for UDS getsockopt(SO_PEERCRED) Smack: Clean up comments Smack: Repair processing of fcntl Smack: Rule list lookup performance Smack: check permissions from user space (v2) TOMOYO: Fix quota and garbage collector. TOMOYO: Remove redundant tasklist_lock. TOMOYO: Fix domain transition failure warning. TOMOYO: Remove tomoyo_policy_memory_lock spinlock. TOMOYO: Simplify garbage collector. TOMOYO: Fix make namespacecheck warnings. target: check hex2bin result encrypted-keys: check hex2bin result ...
2011-10-24CIFS: Make cifs_push_locks send as many locks at once as possiblePavel Shilovsky1-6/+43
that reduces a traffic and increases a performance. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-24CIFS: Send as many mandatory unlock ranges at once as possiblePavel Shilovsky3-36/+167
that reduces a traffic and increases a performance. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-24CIFS: Implement caching mechanism for posix brlocksPavel Shilovsky3-15/+147
to handle all lock requests on the client in an exclusive oplock case. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-24CIFS: Implement caching mechanism for mandatory brlocksPavel Shilovsky2-11/+197
If we have an oplock and negotiate mandatory locking style we handle all brlock requests on the client. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Acked-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-22CIFS: Fix DFS handling in cifs_get_file_infoPavel Shilovsky1-7/+12
We should call cifs_all_info_to_fattr in rc == 0 case only. Cc: <stable@kernel.org> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-21CIFS: Fix error handling in cifs_readv_completePavel Shilovsky1-1/+1
In cifs_readv_receive we don't update rdata->result to error value after kmap'ing a page. We should kunmap the page in the no error case only. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-19Merge branch 'cifs-3.2' of git://git.samba.org/jlayton/linux into temp-3.2-jeffSteve French8-366/+880
2011-10-19[CIFS] Show nostrictsync and noperm mount options in /proc/mountsSteve French1-0/+4
Add support to print nostrictsync and noperm mount options in /proc/mounts for shares mounted with these options. (cleanup merge conflict in Sachin's original patch) Suggested-by: Sachin Prabhu <sprabhu@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-19cifs, freezer: add wait_event_freezekillable and have cifs use itJeff Layton1-1/+2
CIFS currently uses wait_event_killable to put tasks to sleep while they await replies from the server. That function though does not allow the freezer to run. In many cases, the network interface may be going down anyway, in which case the reply will never come. The client then ends up blocking the computer from suspending. Fix this by adding a new wait_event_freezable variant -- wait_event_freezekillable. The idea is to combine the behavior of wait_event_killable and wait_event_freezable -- put the task to sleep and only allow it to be awoken by fatal signals, but also allow the freezer to do its job. Signed-off-by: Jeff Layton <jlayton@redhat.com>
2011-10-19cifs: allow cifs_max_pending to be readable under /sys/module/cifs/parametersJeff Layton1-1/+1
Signed-off-by: Jeff Layton <jlayton@redhat.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 02:01:37 +0000