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authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-14 02:17:49 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-14 02:17:49 +0400
commit9ea319b61613085f501a79cf8d405cb221d084f3 (patch)
tree5bf7e1b9f104a0df029d355927fa9eb398db37bb /fs/xfs/xfs_attr.c
parent3e11acd4306d558249c31cf6cac09f218f2de52e (diff)
parentc6a7b0f8a49aa71792dd108efc535435f462bf79 (diff)
downloadlinux-9ea319b61613085f501a79cf8d405cb221d084f3.tar.xz
Merge git://oss.sgi.com:8090/xfs/linux-2.6
* git://oss.sgi.com:8090/xfs/linux-2.6: (45 commits) [XFS] Fix use after free in xfs_log_done(). [XFS] Make xfs_bmap_*_count_leaves void. [XFS] Use KM_NOFS for debug trace buffers [XFS] use KM_MAYFAIL in xfs_mountfs [XFS] refactor xfs_mount_free [XFS] don't call xfs_freesb from xfs_unmountfs [XFS] xfs_unmountfs should return void [XFS] cleanup xfs_mountfs [XFS] move root inode IRELE into xfs_unmountfs [XFS] stop using file_update_time [XFS] optimize xfs_ichgtime [XFS] update timestamp in xfs_ialloc manually [XFS] remove the sema_t from XFS. [XFS] replace dquot flush semaphore with a completion [XFS] replace inode flush semaphore with a completion [XFS] extend completions to provide XFS object flush requirements [XFS] replace the XFS buf iodone semaphore with a completion [XFS] clean up stale references to semaphores [XFS] use get_unaligned_* helpers [XFS] Fix compile failure in xfs_buf_trace() ...
Diffstat (limited to 'fs/xfs/xfs_attr.c')
-rw-r--r--fs/xfs/xfs_attr.c110
1 files changed, 68 insertions, 42 deletions
diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index 78de80e3caa2..f7cdc28aff41 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -194,6 +194,46 @@ xfs_attr_get(
return(error);
}
+/*
+ * Calculate how many blocks we need for the new attribute,
+ */
+int
+xfs_attr_calc_size(
+ struct xfs_inode *ip,
+ int namelen,
+ int valuelen,
+ int *local)
+{
+ struct xfs_mount *mp = ip->i_mount;
+ int size;
+ int nblks;
+
+ /*
+ * Determine space new attribute will use, and if it would be
+ * "local" or "remote" (note: local != inline).
+ */
+ size = xfs_attr_leaf_newentsize(namelen, valuelen,
+ mp->m_sb.sb_blocksize, local);
+
+ nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK);
+ if (*local) {
+ if (size > (mp->m_sb.sb_blocksize >> 1)) {
+ /* Double split possible */
+ nblks *= 2;
+ }
+ } else {
+ /*
+ * Out of line attribute, cannot double split, but
+ * make room for the attribute value itself.
+ */
+ uint dblocks = XFS_B_TO_FSB(mp, valuelen);
+ nblks += dblocks;
+ nblks += XFS_NEXTENTADD_SPACE_RES(mp, dblocks, XFS_ATTR_FORK);
+ }
+
+ return nblks;
+}
+
STATIC int
xfs_attr_set_int(xfs_inode_t *dp, struct xfs_name *name,
char *value, int valuelen, int flags)
@@ -202,10 +242,9 @@ xfs_attr_set_int(xfs_inode_t *dp, struct xfs_name *name,
xfs_fsblock_t firstblock;
xfs_bmap_free_t flist;
int error, err2, committed;
- int local, size;
- uint nblks;
xfs_mount_t *mp = dp->i_mount;
int rsvd = (flags & ATTR_ROOT) != 0;
+ int local;
/*
* Attach the dquots to the inode.
@@ -241,30 +280,8 @@ xfs_attr_set_int(xfs_inode_t *dp, struct xfs_name *name,
args.whichfork = XFS_ATTR_FORK;
args.op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT;
- /*
- * Determine space new attribute will use, and if it would be
- * "local" or "remote" (note: local != inline).
- */
- size = xfs_attr_leaf_newentsize(name->len, valuelen,
- mp->m_sb.sb_blocksize, &local);
-
- nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK);
- if (local) {
- if (size > (mp->m_sb.sb_blocksize >> 1)) {
- /* Double split possible */
- nblks <<= 1;
- }
- } else {
- uint dblocks = XFS_B_TO_FSB(mp, valuelen);
- /* Out of line attribute, cannot double split, but make
- * room for the attribute value itself.
- */
- nblks += dblocks;
- nblks += XFS_NEXTENTADD_SPACE_RES(mp, dblocks, XFS_ATTR_FORK);
- }
-
/* Size is now blocks for attribute data */
- args.total = nblks;
+ args.total = xfs_attr_calc_size(dp, name->len, valuelen, &local);
/*
* Start our first transaction of the day.
@@ -286,18 +303,17 @@ xfs_attr_set_int(xfs_inode_t *dp, struct xfs_name *name,
if (rsvd)
args.trans->t_flags |= XFS_TRANS_RESERVE;
- if ((error = xfs_trans_reserve(args.trans, (uint) nblks,
- XFS_ATTRSET_LOG_RES(mp, nblks),
- 0, XFS_TRANS_PERM_LOG_RES,
- XFS_ATTRSET_LOG_COUNT))) {
+ if ((error = xfs_trans_reserve(args.trans, args.total,
+ XFS_ATTRSET_LOG_RES(mp, args.total), 0,
+ XFS_TRANS_PERM_LOG_RES, XFS_ATTRSET_LOG_COUNT))) {
xfs_trans_cancel(args.trans, 0);
return(error);
}
xfs_ilock(dp, XFS_ILOCK_EXCL);
- error = XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, args.trans, dp, nblks, 0,
- rsvd ? XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_FORCE_RES :
- XFS_QMOPT_RES_REGBLKS);
+ error = XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, args.trans, dp, args.total, 0,
+ rsvd ? XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_FORCE_RES :
+ XFS_QMOPT_RES_REGBLKS);
if (error) {
xfs_iunlock(dp, XFS_ILOCK_EXCL);
xfs_trans_cancel(args.trans, XFS_TRANS_RELEASE_LOG_RES);
@@ -384,7 +400,9 @@ xfs_attr_set_int(xfs_inode_t *dp, struct xfs_name *name,
* Commit the leaf transformation. We'll need another (linked)
* transaction to add the new attribute to the leaf.
*/
- if ((error = xfs_attr_rolltrans(&args.trans, dp)))
+
+ error = xfs_trans_roll(&args.trans, dp);
+ if (error)
goto out;
}
@@ -964,7 +982,8 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
* Commit the current trans (including the inode) and start
* a new one.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+ error = xfs_trans_roll(&args->trans, dp);
+ if (error)
return (error);
/*
@@ -978,7 +997,8 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
* Commit the transaction that added the attr name so that
* later routines can manage their own transactions.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+ error = xfs_trans_roll(&args->trans, dp);
+ if (error)
return (error);
/*
@@ -1067,7 +1087,7 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
/*
* Commit the remove and start the next trans in series.
*/
- error = xfs_attr_rolltrans(&args->trans, dp);
+ error = xfs_trans_roll(&args->trans, dp);
} else if (args->rmtblkno > 0) {
/*
@@ -1298,7 +1318,8 @@ restart:
* Commit the node conversion and start the next
* trans in the chain.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+ error = xfs_trans_roll(&args->trans, dp);
+ if (error)
goto out;
goto restart;
@@ -1349,7 +1370,8 @@ restart:
* Commit the leaf addition or btree split and start the next
* trans in the chain.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+ error = xfs_trans_roll(&args->trans, dp);
+ if (error)
goto out;
/*
@@ -1449,7 +1471,8 @@ restart:
/*
* Commit and start the next trans in the chain.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+ error = xfs_trans_roll(&args->trans, dp);
+ if (error)
goto out;
} else if (args->rmtblkno > 0) {
@@ -1581,7 +1604,8 @@ xfs_attr_node_removename(xfs_da_args_t *args)
/*
* Commit the Btree join operation and start a new trans.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+ error = xfs_trans_roll(&args->trans, dp);
+ if (error)
goto out;
}
@@ -2082,7 +2106,8 @@ xfs_attr_rmtval_set(xfs_da_args_t *args)
/*
* Start the next trans in the chain.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+ error = xfs_trans_roll(&args->trans, dp);
+ if (error)
return (error);
}
@@ -2232,7 +2257,8 @@ xfs_attr_rmtval_remove(xfs_da_args_t *args)
/*
* Close out trans and start the next one in the chain.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, args->dp)))
+ error = xfs_trans_roll(&args->trans, args->dp);
+ if (error)
return (error);
}
return(0);