diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/Makefile | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_error.c | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_filestream.c | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_inode.c | 279 | ||||
| -rw-r--r-- | fs/xfs/xfs_inode.h | 7 | ||||
| -rw-r--r-- | fs/xfs/xfs_inode_fork.c | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_ioctl.c | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_iomap.c | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_iops.c | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_log_recover.c | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_mount.c | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_qm.c | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_qm_syscalls.c | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_rtalloc.c | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_super.c | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_symlink.c | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_utils.c | 316 | ||||
| -rw-r--r-- | fs/xfs/xfs_utils.h | 27 |
18 files changed, 285 insertions, 358 deletions
diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile index e5a0758fd20c..201c61df3c45 100644 --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -53,7 +53,6 @@ xfs-y += xfs_aops.o \ xfs_super.o \ xfs_symlink.o \ xfs_trans.o \ - xfs_utils.o \ xfs_xattr.o \ kmem.o \ uuid.o diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c index 35d3f5b041dd..1123d93ff795 100644 --- a/fs/xfs/xfs_error.c +++ b/fs/xfs/xfs_error.c @@ -26,7 +26,6 @@ #include "xfs_bmap_btree.h" #include "xfs_dinode.h" #include "xfs_inode.h" -#include "xfs_utils.h" #include "xfs_error.h" #ifdef DEBUG diff --git a/fs/xfs/xfs_filestream.c b/fs/xfs/xfs_filestream.c index d0e8890dac86..ce78e654d37b 100644 --- a/fs/xfs/xfs_filestream.c +++ b/fs/xfs/xfs_filestream.c @@ -28,7 +28,6 @@ #include "xfs_bmap.h" #include "xfs_bmap_util.h" #include "xfs_alloc.h" -#include "xfs_utils.h" #include "xfs_mru_cache.h" #include "xfs_filestream.h" #include "xfs_trace.h" diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 279ac3fdfde5..e83d3af3dfd4 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -46,7 +46,6 @@ #include "xfs_bmap.h" #include "xfs_bmap_util.h" #include "xfs_error.h" -#include "xfs_utils.h" #include "xfs_quota.h" #include "xfs_filestream.h" #include "xfs_cksum.h" @@ -862,6 +861,284 @@ xfs_ialloc( return 0; } +/* + * Allocates a new inode from disk and return a pointer to the + * incore copy. This routine will internally commit the current + * transaction and allocate a new one if the Space Manager needed + * to do an allocation to replenish the inode free-list. + * + * This routine is designed to be called from xfs_create and + * xfs_create_dir. + * + */ +int +xfs_dir_ialloc( + xfs_trans_t **tpp, /* input: current transaction; + output: may be a new transaction. */ + xfs_inode_t *dp, /* directory within whose allocate + the inode. */ + umode_t mode, + xfs_nlink_t nlink, + xfs_dev_t rdev, + prid_t prid, /* project id */ + int okalloc, /* ok to allocate new space */ + xfs_inode_t **ipp, /* pointer to inode; it will be + locked. */ + int *committed) + +{ + xfs_trans_t *tp; + xfs_trans_t *ntp; + xfs_inode_t *ip; + xfs_buf_t *ialloc_context = NULL; + int code; + uint log_res; + uint log_count; + void *dqinfo; + uint tflags; + + tp = *tpp; + ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES); + + /* + * xfs_ialloc will return a pointer to an incore inode if + * the Space Manager has an available inode on the free + * list. Otherwise, it will do an allocation and replenish + * the freelist. Since we can only do one allocation per + * transaction without deadlocks, we will need to commit the + * current transaction and start a new one. We will then + * need to call xfs_ialloc again to get the inode. + * + * If xfs_ialloc did an allocation to replenish the freelist, + * it returns the bp containing the head of the freelist as + * ialloc_context. We will hold a lock on it across the + * transaction commit so that no other process can steal + * the inode(s) that we've just allocated. + */ + code = xfs_ialloc(tp, dp, mode, nlink, rdev, prid, okalloc, + &ialloc_context, &ip); + + /* + * Return an error if we were unable to allocate a new inode. + * This should only happen if we run out of space on disk or + * encounter a disk error. + */ + if (code) { + *ipp = NULL; + return code; + } + if (!ialloc_context && !ip) { + *ipp = NULL; + return XFS_ERROR(ENOSPC); + } + + /* + * If the AGI buffer is non-NULL, then we were unable to get an + * inode in one operation. We need to commit the current + * transaction and call xfs_ialloc() again. It is guaranteed + * to succeed the second time. + */ + if (ialloc_context) { + /* + * Normally, xfs_trans_commit releases all the locks. + * We call bhold to hang on to the ialloc_context across + * the commit. Holding this buffer prevents any other + * processes from doing any allocations in this + * allocation group. + */ + xfs_trans_bhold(tp, ialloc_context); + /* + * Save the log reservation so we can use + * them in the next transaction. + */ + log_res = xfs_trans_get_log_res(tp); + log_count = xfs_trans_get_log_count(tp); + + /* + * We want the quota changes to be associated with the next + * transaction, NOT this one. So, detach the dqinfo from this + * and attach it to the next transaction. + */ + dqinfo = NULL; + tflags = 0; + if (tp->t_dqinfo) { + dqinfo = (void *)tp->t_dqinfo; + tp->t_dqinfo = NULL; + tflags = tp->t_flags & XFS_TRANS_DQ_DIRTY; + tp->t_flags &= ~(XFS_TRANS_DQ_DIRTY); + } + + ntp = xfs_trans_dup(tp); + code = xfs_trans_commit(tp, 0); + tp = ntp; + if (committed != NULL) { + *committed = 1; + } + /* + * If we get an error during the commit processing, + * release the buffer that is still held and return + * to the caller. + */ + if (code) { + xfs_buf_relse(ialloc_context); + if (dqinfo) { + tp->t_dqinfo = dqinfo; + xfs_trans_free_dqinfo(tp); + } + *tpp = ntp; + *ipp = NULL; + return code; + } + + /* + * transaction commit worked ok so we can drop the extra ticket + * reference that we gained in xfs_trans_dup() + */ + xfs_log_ticket_put(tp->t_ticket); + code = xfs_trans_reserve(tp, 0, log_res, 0, + XFS_TRANS_PERM_LOG_RES, log_count); + /* + * Re-attach the quota info that we detached from prev trx. + */ + if (dqinfo) { + tp->t_dqinfo = dqinfo; + tp->t_flags |= tflags; + } + + if (code) { + xfs_buf_relse(ialloc_context); + *tpp = ntp; + *ipp = NULL; + return code; + } + xfs_trans_bjoin(tp, ialloc_context); + + /* + * Call ialloc again. Since we've locked out all + * other allocations in this allocation group, + * this call should always succeed. + */ + code = xfs_ialloc(tp, dp, mode, nlink, rdev, prid, + okalloc, &ialloc_context, &ip); + + /* + * If we get an error at this point, return to the caller + * so that the current transaction can be aborted. + */ + if (code) { + *tpp = tp; + *ipp = NULL; + return code; + } + ASSERT(!ialloc_context && ip); + + } else { + if (committed != NULL) + *committed = 0; + } + + *ipp = ip; + *tpp = tp; + + return 0; +} + +/* + * Decrement the link count on an inode & log the change. + * If this causes the link count to go to zero, initiate the + * logging activity required to truncate a file. + */ +int /* error */ +xfs_droplink( + xfs_trans_t *tp, + xfs_inode_t *ip) +{ + int error; + + xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG); + + ASSERT (ip->i_d.di_nlink > 0); + ip->i_d.di_nlink--; + drop_nlink(VFS_I(ip)); + xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); + + error = 0; + if (ip->i_d.di_nlink == 0) { + /* + * We're dropping the last link to this file. + * Move the on-disk inode to the AGI unlinked list. + * From xfs_inactive() we will pull the inode from + * the list and free it. + */ + error = xfs_iunlink(tp, ip); + } + return error; +} + +/* + * This gets called when the inode's version needs to be changed from 1 to 2. + * Currently this happens when the nlink field overflows the old 16-bit value + * or when chproj is called to change the project for the first time. + * As a side effect the superblock version will also get rev'd + * to contain the NLINK bit. + */ +void +xfs_bump_ino_vers2( + xfs_trans_t *tp, + xfs_inode_t *ip) +{ + xfs_mount_t *mp; + + ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); + ASSERT(ip->i_d.di_version == 1); + + ip->i_d.di_version = 2; + ip->i_d.di_onlink = 0; + memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad)); + mp = tp->t_mountp; + if (!xfs_sb_version_hasnlink(&mp->m_sb)) { + spin_lock(&mp->m_sb_lock); + if (!xfs_sb_version_hasnlink(&mp->m_sb)) { + xfs_sb_version_addnlink(&mp->m_sb); + spin_unlock(&mp->m_sb_lock); + xfs_mod_sb(tp, XFS_SB_VERSIONNUM); + } else { + spin_unlock(&mp->m_sb_lock); + } + } + /* Caller must log the inode */ +} + +/* + * Increment the link count on an inode & log the change. + */ +int +xfs_bumplink( + xfs_trans_t *tp, + xfs_inode_t *ip) +{ + xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG); + + ASSERT(ip->i_d.di_nlink > 0); + ip->i_d.di_nlink++; + inc_nlink(VFS_I(ip)); + if ((ip->i_d.di_version == 1) && + (ip->i_d.di_nlink > XFS_MAXLINK_1)) { + /* + * The inode has increased its number of links beyond + * what can fit in an old format inode. It now needs + * to be converted to a version 2 inode with a 32 bit + * link count. If this is the first inode in the file + * system to do this, then we need to bump the superblock + * version number as well. + */ + xfs_bump_ino_vers2(tp, ip); + } + + xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); + return 0; +} + int xfs_create( xfs_inode_t *dp, diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index 2a6347038cd8..4a91358c1470 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -360,6 +360,13 @@ void xfs_lock_two_inodes(xfs_inode_t *, xfs_inode_t *, uint); xfs_extlen_t xfs_get_extsz_hint(struct xfs_inode *ip); +int xfs_dir_ialloc(struct xfs_trans **, struct xfs_inode *, umode_t, + xfs_nlink_t, xfs_dev_t, prid_t, int, + struct xfs_inode **, int *); +int xfs_droplink(struct xfs_trans *, struct xfs_inode *); +int xfs_bumplink(struct xfs_trans *, struct xfs_inode *); +void xfs_bump_ino_vers2(struct xfs_trans *, struct xfs_inode *); + /* from xfs_file.c */ int xfs_zero_eof(struct xfs_inode *, xfs_off_t, xfs_fsize_t); int xfs_iozero(struct xfs_inode *, loff_t, size_t); diff --git a/fs/xfs/xfs_inode_fork.c b/fs/xfs/xfs_inode_fork.c index 3f9ff99d6007..123971b31fbe 100644 --- a/fs/xfs/xfs_inode_fork.c +++ b/fs/xfs/xfs_inode_fork.c @@ -40,7 +40,6 @@ #include "xfs_ialloc.h" #include "xfs_bmap.h" #include "xfs_error.h" -#include "xfs_utils.h" #include "xfs_quota.h" #include "xfs_filestream.h" #include "xfs_cksum.h" diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index ce636bf0d550..557c7b8b2425 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -35,7 +35,6 @@ #include "xfs_bmap.h" #include "xfs_bmap_util.h" #include "xfs_buf_item.h" -#include "xfs_utils.h" #include "xfs_dfrag.h" #include "xfs_fsops.h" #include "xfs_discard.h" diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index b04a60f66411..cf8f74407660 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -40,7 +40,6 @@ #include "xfs_attr.h" #include "xfs_buf_item.h" #include "xfs_trans_space.h" -#include "xfs_utils.h" #include "xfs_iomap.h" #include "xfs_trace.h" #include "xfs_icache.h" diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index e0cefd417bf8..24be68d82f11 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -36,7 +36,6 @@ #include "xfs_itable.h" #include "xfs_attr.h" #include "xfs_buf_item.h" -#include "xfs_utils.h" #include "xfs_inode_item.h" #include "xfs_trace.h" #include "xfs_icache.h" diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 62ddae32b991..81c04eb90521 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -41,7 +41,6 @@ #include "xfs_extfree_item.h" #include "xfs_trans_priv.h" #include "xfs_quota.h" -#include "xfs_utils.h" #include "xfs_cksum.h" #include "xfs_trace.h" #include "xfs_icache.h" diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 3b6fe4ffd724..7a9986db47e2 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -42,7 +42,6 @@ #include "xfs_error.h" #include "xfs_quota.h" #include "xfs_fsops.h" -#include "xfs_utils.h" #include "xfs_trace.h" #include "xfs_icache.h" #include "xfs_cksum.h" diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c index 92c36ac4bb23..35a6f568e9c9 100644 --- a/fs/xfs/xfs_qm.c +++ b/fs/xfs/xfs_qm.c @@ -38,7 +38,6 @@ #include "xfs_attr.h" #include "xfs_buf_item.h" #include "xfs_trans_space.h" -#include "xfs_utils.h" #include "xfs_qm.h" #include "xfs_trace.h" #include "xfs_icache.h" diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c index 18519392c486..6fdccc324f7e 100644 --- a/fs/xfs/xfs_qm_syscalls.c +++ b/fs/xfs/xfs_qm_syscalls.c @@ -38,7 +38,6 @@ #include "xfs_error.h" #include "xfs_attr.h" #include "xfs_buf_item.h" -#include "xfs_utils.h" #include "xfs_qm.h" #include "xfs_trace.h" #include "xfs_icache.h" diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index 7a445e68c35b..48228067b0d2 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -35,7 +35,6 @@ #include "xfs_error.h" #include "xfs_inode_item.h" #include "xfs_trans_space.h" -#include "xfs_utils.h" #include "xfs_trace.h" #include "xfs_buf.h" #include "xfs_icache.h" diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 978a2845f9af..979a77d4b87d 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -40,7 +40,6 @@ #include "xfs_fsops.h" #include "xfs_attr.h" #include "xfs_buf_item.h" -#include "xfs_utils.h" #include "xfs_log_priv.h" #include "xfs_trans_priv.h" #include "xfs_filestream.h" diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c index 1ce2756dfb71..e6facbf7043e 100644 --- a/fs/xfs/xfs_symlink.c +++ b/fs/xfs/xfs_symlink.c @@ -38,7 +38,6 @@ #include "xfs_bmap_util.h" #include "xfs_error.h" #include "xfs_quota.h" -#include "xfs_utils.h" #include "xfs_trans_space.h" #include "xfs_trace.h" #include "xfs_symlink.h" diff --git a/fs/xfs/xfs_utils.c b/fs/xfs/xfs_utils.c deleted file mode 100644 index fde7d2231ee8..000000000000 --- a/fs/xfs/xfs_utils.c +++ /dev/null @@ -1,316 +0,0 @@ -/* - * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. - * All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it would be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ -#include "xfs.h" -#include "xfs_fs.h" -#include "xfs_format.h" -#include "xfs_log.h" -#include "xfs_trans.h" -#include "xfs_sb.h" -#include "xfs_ag.h" -#include "xfs_mount.h" -#include "xfs_da_btree.h" -#include "xfs_dir2_format.h" -#include "xfs_dir2.h" -#include "xfs_bmap_btree.h" -#include "xfs_dinode.h" -#include "xfs_inode.h" -#include "xfs_inode_item.h" -#include "xfs_bmap.h" -#include "xfs_error.h" -#include "xfs_quota.h" -#include "xfs_itable.h" -#include "xfs_utils.h" - - -/* - * Allocates a new inode from disk and return a pointer to the - * incore copy. This routine will internally commit the current - * transaction and allocate a new one if the Space Manager needed - * to do an allocation to replenish the inode free-list. - * - * This routine is designed to be called from xfs_create and - * xfs_create_dir. - * - */ -int -xfs_dir_ialloc( - xfs_trans_t **tpp, /* input: current transaction; - output: may be a new transaction. */ - xfs_inode_t *dp, /* directory within whose allocate - the inode. */ - umode_t mode, - xfs_nlink_t nlink, - xfs_dev_t rdev, - prid_t prid, /* project id */ - int okalloc, /* ok to allocate new space */ - xfs_inode_t **ipp, /* pointer to inode; it will be - locked. */ - int *committed) - -{ - xfs_trans_t *tp; - xfs_trans_t *ntp; - xfs_inode_t *ip; - xfs_buf_t *ialloc_context = NULL; - int code; - uint log_res; - uint log_count; - void *dqinfo; - uint tflags; - - tp = *tpp; - ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES); - - /* - * xfs_ialloc will return a pointer to an incore inode if - * the Space Manager has an available inode on the free - * list. Otherwise, it will do an allocation and replenish - * the freelist. Since we can only do one allocation per - * transaction without deadlocks, we will need to commit the - * current transaction and start a new one. We will then - * need to call xfs_ialloc again to get the inode. - * - * If xfs_ialloc did an allocation to replenish the freelist, - * it returns the bp containing the head of the freelist as - * ialloc_context. We will hold a lock on it across the - * transaction commit so that no other process can steal - * the inode(s) that we've just allocated. - */ - code = xfs_ialloc(tp, dp, mode, nlink, rdev, prid, okalloc, - &ialloc_context, &ip); - - /* - * Return an error if we were unable to allocate a new inode. - * This should only happen if we run out of space on disk or - * encounter a disk error. - */ - if (code) { - *ipp = NULL; - return code; - } - if (!ialloc_context && !ip) { - *ipp = NULL; - return XFS_ERROR(ENOSPC); - } - - /* - * If the AGI buffer is non-NULL, then we were unable to get an - * inode in one operation. We need to commit the current - * transaction and call xfs_ialloc() again. It is guaranteed - * to succeed the second time. - */ - if (ialloc_context) { - /* - * Normally, xfs_trans_commit releases all the locks. - * We call bhold to hang on to the ialloc_context across - * the commit. Holding this buffer prevents any other - * processes from doing any allocations in this - * allocation group. - */ - xfs_trans_bhold(tp, ialloc_context); - /* - * Save the log reservation so we can use - * them in the next transaction. - */ - log_res = xfs_trans_get_log_res(tp); - log_count = xfs_trans_get_log_count(tp); - - /* - * We want the quota changes to be associated with the next - * transaction, NOT this one. So, detach the dqinfo from this - * and attach it to the next transaction. - */ - dqinfo = NULL; - tflags = 0; - if (tp->t_dqinfo) { - dqinfo = (void *)tp->t_dqinfo; - tp->t_dqinfo = NULL; - tflags = tp->t_flags & XFS_TRANS_DQ_DIRTY; - tp->t_flags &= ~(XFS_TRANS_DQ_DIRTY); - } - - ntp = xfs_trans_dup(tp); - code = xfs_trans_commit(tp, 0); - tp = ntp; - if (committed != NULL) { - *committed = 1; - } - /* - * If we get an error during the commit processing, - * release the buffer that is still held and return - * to the caller. - */ - if (code) { - xfs_buf_relse(ialloc_context); - if (dqinfo) { - tp->t_dqinfo = dqinfo; - xfs_trans_free_dqinfo(tp); - } - *tpp = ntp; - *ipp = NULL; - return code; - } - - /* - * transaction commit worked ok so we can drop the extra ticket - * reference that we gained in xfs_trans_dup() - */ - xfs_log_ticket_put(tp->t_ticket); - code = xfs_trans_reserve(tp, 0, log_res, 0, - XFS_TRANS_PERM_LOG_RES, log_count); - /* - * Re-attach the quota info that we detached from prev trx. - */ - if (dqinfo) { - tp->t_dqinfo = dqinfo; - tp->t_flags |= tflags; - } - - if (code) { - xfs_buf_relse(ialloc_context); - *tpp = ntp; - *ipp = NULL; - return code; - } - xfs_trans_bjoin(tp, ialloc_context); - - /* - * Call ialloc again. Since we've locked out all - * other allocations in this allocation group, - * this call should always succeed. - */ - code = xfs_ialloc(tp, dp, mode, nlink, rdev, prid, - okalloc, &ialloc_context, &ip); - - /* - * If we get an error at this point, return to the caller - * so that the current transaction can be aborted. - */ - if (code) { - *tpp = tp; - *ipp = NULL; - return code; - } - ASSERT(!ialloc_context && ip); - - } else { - if (committed != NULL) - *committed = 0; - } - - *ipp = ip; - *tpp = tp; - - return 0; -} - -/* - * Decrement the link count on an inode & log the change. - * If this causes the link count to go to zero, initiate the - * logging activity required to truncate a file. - */ -int /* error */ -xfs_droplink( - xfs_trans_t *tp, - xfs_inode_t *ip) -{ - int error; - - xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG); - - ASSERT (ip->i_d.di_nlink > 0); - ip->i_d.di_nlink--; - drop_nlink(VFS_I(ip)); - xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); - - error = 0; - if (ip->i_d.di_nlink == 0) { - /* - * We're dropping the last link to this file. - * Move the on-disk inode to the AGI unlinked list. - * From xfs_inactive() we will pull the inode from - * the list and free it. - */ - error = xfs_iunlink(tp, ip); - } - return error; -} - -/* - * This gets called when the inode's version needs to be changed from 1 to 2. - * Currently this happens when the nlink field overflows the old 16-bit value - * or when chproj is called to change the project for the first time. - * As a side effect the superblock version will also get rev'd - * to contain the NLINK bit. - */ -void -xfs_bump_ino_vers2( - xfs_trans_t *tp, - xfs_inode_t *ip) -{ - xfs_mount_t *mp; - - ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); - ASSERT(ip->i_d.di_version == 1); - - ip->i_d.di_version = 2; - ip->i_d.di_onlink = 0; - memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad)); - mp = tp->t_mountp; - if (!xfs_sb_version_hasnlink(&mp->m_sb)) { - spin_lock(&mp->m_sb_lock); - if (!xfs_sb_version_hasnlink(&mp->m_sb)) { - xfs_sb_version_addnlink(&mp->m_sb); - spin_unlock(&mp->m_sb_lock); - xfs_mod_sb(tp, XFS_SB_VERSIONNUM); - } else { - spin_unlock(&mp->m_sb_lock); - } - } - /* Caller must log the inode */ -} - -/* - * Increment the link count on an inode & log the change. - */ -int -xfs_bumplink( - xfs_trans_t *tp, - xfs_inode_t *ip) -{ - xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG); - - ASSERT(ip->i_d.di_nlink > 0); - ip->i_d.di_nlink++; - inc_nlink(VFS_I(ip)); - if ((ip->i_d.di_version == 1) && - (ip->i_d.di_nlink > XFS_MAXLINK_1)) { - /* - * The inode has increased its number of links beyond - * what can fit in an old format inode. It now needs - * to be converted to a version 2 inode with a 32 bit - * link count. If this is the first inode in the file - * system to do this, then we need to bump the superblock - * version number as well. - */ - xfs_bump_ino_vers2(tp, ip); - } - - xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); - return 0; -} diff --git a/fs/xfs/xfs_utils.h b/fs/xfs/xfs_utils.h deleted file mode 100644 index 5eeab4690cfe..000000000000 --- a/fs/xfs/xfs_utils.h +++ /dev/null @@ -1,27 +0,0 @@ -/* - * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. - * All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it would be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ -#ifndef __XFS_UTILS_H__ -#define __XFS_UTILS_H__ - -extern int xfs_dir_ialloc(xfs_trans_t **, xfs_inode_t *, umode_t, xfs_nlink_t, - xfs_dev_t, prid_t, int, xfs_inode_t **, int *); -extern int xfs_droplink(xfs_trans_t *, xfs_inode_t *); -extern int xfs_bumplink(xfs_trans_t *, xfs_inode_t *); -extern void xfs_bump_ino_vers2(xfs_trans_t *, xfs_inode_t *); - -#endif /* __XFS_UTILS_H__ */ |