[XFS] Add a comment about the use of XFS_SIZE_TOKEN_WANT.
SGI-PV: 936331
SGI-Modid: xfs-linux:xfs-kern:23827a
Signed-off-by: Nathan Scott <nathans@sgi.com>
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 54d9e54..6ec8a0d 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -388,6 +388,7 @@
#define XFS_ILOCK_EXCL 0x004
#define XFS_ILOCK_SHARED 0x008
#define XFS_IUNLOCK_NONOTIFY 0x010
+/* XFS_IOLOCK_NESTED 0x020 */
#define XFS_EXTENT_TOKEN_RD 0x040
#define XFS_SIZE_TOKEN_RD 0x080
#define XFS_EXTSIZE_RD (XFS_EXTENT_TOKEN_RD|XFS_SIZE_TOKEN_RD)
@@ -395,7 +396,7 @@
#define XFS_EXTENT_TOKEN_WR (XFS_EXTENT_TOKEN_RD | XFS_WILLLEND)
#define XFS_SIZE_TOKEN_WR (XFS_SIZE_TOKEN_RD | XFS_WILLLEND)
#define XFS_EXTSIZE_WR (XFS_EXTSIZE_RD | XFS_WILLLEND)
-
+/* XFS_SIZE_TOKEN_WANT 0x200 */
#define XFS_LOCK_MASK \
(XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED | XFS_ILOCK_EXCL | \