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authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-27 13:41:51 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-27 13:41:51 -0700
commit597a67e0ba758e3d2239c81fbb648c6e69ec30a2 (patch)
treee2b6146df41943e7f87168fe3f5825722b434223 /fs/xfs
parent28890d3598c352ae065b560e0fded3e79c800ba1 (diff)
parent510792ee29770a38dd409bf2b469ade2fea9eb52 (diff)
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* '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
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.c3
-rw-r--r--fs/xfs/linux-2.6/xfs_file.c2
-rw-r--r--fs/xfs/linux-2.6/xfs_iops.c9
-rw-r--r--fs/xfs/xfs_da_btree.c32
4 files changed, 33 insertions, 13 deletions
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index b2b411985591..d1fe74506c4c 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -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);
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 825390e1c138..7f7b42469ea7 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -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) {
/*
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 6544c3236bc8..b9c172b3fbbe 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -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();
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index 2925726529f8..5bfcb8779f9f 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -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);