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Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

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* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: optimize the negative xattr caching
  xfs: prevent against ioend livelocks in xfs_file_fsync
  xfs: flag all buffers as metadata
  xfs: encapsulate a block of debug code
This commit is contained in:
Linus Torvalds 2011-07-27 13:41:51 -07:00
commit 597a67e0ba
4 changed files with 33 additions and 13 deletions
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3
fs/xfs/linux-2.6/xfs_buf.c
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@ -1224,6 +1224,9 @@ _xfs_buf_ioapply(
rw = READ;
}
/* we only use the buffer cache for meta-data */
rw |= REQ_META;
next_chunk:
atomic_inc(&bp->b_io_remaining);
nr_pages = BIO_MAX_SECTORS >> (PAGE_SHIFT - BBSHIFT);

2
fs/xfs/linux-2.6/xfs_file.c
View File

@ -149,7 +149,9 @@ xfs_file_fsync(
xfs_iflags_clear(ip, XFS_ITRUNCATED);
xfs_ilock(ip, XFS_IOLOCK_SHARED);
xfs_ioend_wait(ip);
xfs_iunlock(ip, XFS_IOLOCK_SHARED);
if (mp->m_flags & XFS_MOUNT_BARRIER) {
/*

9
fs/xfs/linux-2.6/xfs_iops.c
View File

@ -1194,9 +1194,14 @@ xfs_setup_inode(
break;
}
/* if there is no attribute fork no ACL can exist on this inode */
if (!XFS_IFORK_Q(ip))
/*
* If there is no attribute fork no ACL can exist on this inode,
* and it can't have any file capabilities attached to it either.
*/
if (!XFS_IFORK_Q(ip)) {
inode_has_no_xattr(inode);
cache_no_acl(inode);
}
xfs_iflags_clear(ip, XFS_INEW);
barrier();

32
fs/xfs/xfs_da_btree.c
View File

@ -692,6 +692,24 @@ xfs_da_join(xfs_da_state_t *state)
return(error);
}
#ifdef DEBUG
static void
xfs_da_blkinfo_onlychild_validate(struct xfs_da_blkinfo *blkinfo, __u16 level)
{
__be16 magic = blkinfo->magic;
if (level == 1) {
ASSERT(magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC) ||
magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
} else
ASSERT(magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
ASSERT(!blkinfo->forw);
ASSERT(!blkinfo->back);
}
#else /* !DEBUG */
#define xfs_da_blkinfo_onlychild_validate(blkinfo, level)
#endif /* !DEBUG */
/*
* We have only one entry in the root. Copy the only remaining child of
* the old root to block 0 as the new root node.
@ -700,8 +718,6 @@ STATIC int
xfs_da_root_join(xfs_da_state_t *state, xfs_da_state_blk_t *root_blk)
{
xfs_da_intnode_t *oldroot;
/* REFERENCED */
xfs_da_blkinfo_t *blkinfo;
xfs_da_args_t *args;
xfs_dablk_t child;
xfs_dabuf_t *bp;
@ -732,15 +748,9 @@ xfs_da_root_join(xfs_da_state_t *state, xfs_da_state_blk_t *root_blk)
if (error)
return(error);
ASSERT(bp != NULL);
blkinfo = bp->data;
if (be16_to_cpu(oldroot->hdr.level) == 1) {
ASSERT(blkinfo->magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC) ||
blkinfo->magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
} else {
ASSERT(blkinfo->magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
}
ASSERT(!blkinfo->forw);
ASSERT(!blkinfo->back);
xfs_da_blkinfo_onlychild_validate(bp->data,
be16_to_cpu(oldroot->hdr.level));
memcpy(root_blk->bp->data, bp->data, state->blocksize);
xfs_da_log_buf(args->trans, root_blk->bp, 0, state->blocksize - 1);
error = xfs_da_shrink_inode(args, child, bp);