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authorChristoph Hellwig <hch@infradead.org>2013-12-07 00:30:16 +0400
committerBen Myers <bpm@sgi.com>2013-12-19 02:08:04 +0400
commit568d994e9f53657cb6b3e9c95a83c130d36f83c9 (patch)
treea4246ce0b646bc7859e04eaf601ab55e6cd23cdf /fs/xfs
parent683cb941598d1d81283c940c100e0ce40f494105 (diff)
downloadlinux-568d994e9f53657cb6b3e9c95a83c130d36f83c9.tar.xz
xfs: use xfs_ilock_attr_map_shared in xfs_attr_list_int
We might not have read in the extent list at this point, so make sure we take the ilock exclusively if we have to do so. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/xfs_attr_list.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/fs/xfs/xfs_attr_list.c b/fs/xfs/xfs_attr_list.c
index 2d174b128153..01db96f60cf0 100644
--- a/fs/xfs/xfs_attr_list.c
+++ b/fs/xfs/xfs_attr_list.c
@@ -507,17 +507,17 @@ xfs_attr_list_int(
{
int error;
xfs_inode_t *dp = context->dp;
+ uint lock_mode;
XFS_STATS_INC(xs_attr_list);
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return EIO;
- xfs_ilock(dp, XFS_ILOCK_SHARED);
-
/*
* Decide on what work routines to call based on the inode size.
*/
+ lock_mode = xfs_ilock_attr_map_shared(dp);
if (!xfs_inode_hasattr(dp)) {
error = 0;
} else if (dp->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) {
@@ -527,9 +527,7 @@ xfs_attr_list_int(
} else {
error = xfs_attr_node_list(context);
}
-
- xfs_iunlock(dp, XFS_ILOCK_SHARED);
-
+ xfs_iunlock(dp, lock_mode);
return error;
}