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@xxxxxx>
diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index b861270..5343034 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -164,6 +164,7 @@ xfs_attr_get(
{
int error;
struct xfs_name xname;
+ uint lock_mode;
XFS_STATS_INC(xs_attr_get);
@@ -174,9 +175,9 @@ xfs_attr_get(
if (error)
return error;
- xfs_ilock(ip, XFS_ILOCK_SHARED);
+ lock_mode = xfs_ilock_map_shared(ip);
error = xfs_attr_get_int(ip, &xname, value, valuelenp, flags);
- xfs_iunlock(ip, XFS_ILOCK_SHARED);
+ xfs_iunlock_map_shared(ip, lock_mode);
return(error);
}
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