[XFS] XFS propagates MS_NOATIME through two levels internally but doesn't

actually use it.  Kill this dead code.	Signed-off-by: Christoph Hellwig
<hch@lst.de>

SGI-PV: 904196
SGI-Modid: xfs-linux-melb:xfs-kern:25086a
Signed-off-by: Nathan Scott <nathans@sgi.com>

fs/xfs/linux-2.6/xfs_super.c

@@ -76,8 +76,6 @@ xfs_args_allocate(
 	strncpy(args->fsname, sb->s_id, MAXNAMELEN);
 
 	/* Copy the already-parsed mount(2) flags we're interested in */
-	if (sb->s_flags & MS_NOATIME)
-		args->flags |= XFSMNT_NOATIME;
 	if (sb->s_flags & MS_DIRSYNC)
 		args->flags |= XFSMNT_DIRSYNC;
 	if (sb->s_flags & MS_SYNCHRONOUS)

fs/xfs/xfs_clnt.h

@@ -68,8 +68,6 @@ struct xfs_mount_args {
 						 * enforcement */
 #define XFSMNT_PQUOTAENF	0x00000040	/* IRIX project quota limit
 						 * enforcement */
-#define XFSMNT_NOATIME		0x00000100	/* don't modify access
-						 * times on reads */
 #define XFSMNT_NOALIGN		0x00000200	/* don't allocate at
 						 * stripe boundaries*/
 #define XFSMNT_RETERR		0x00000400	/* return error to user */

fs/xfs/xfs_mount.h

@@ -386,8 +386,6 @@ typedef struct xfs_mount {
 #define XFS_MOUNT_FS_SHUTDOWN	(1ULL << 4)	/* atomic stop of all filesystem
 						   operations, typically for
 						   disk errors in metadata */
-#define XFS_MOUNT_NOATIME	(1ULL << 5)	/* don't modify inode access
-						   times on reads */
 #define XFS_MOUNT_RETERR	(1ULL << 6)     /* return alignment errors to
 						   user */
 #define XFS_MOUNT_NOALIGN	(1ULL << 7)	/* turn off stripe alignment

fs/xfs/xfs_vfsops.c

@@ -258,8 +258,6 @@ xfs_start_flags(
 		mp->m_inoadd = XFS_INO64_OFFSET;
 	}
 #endif
-	if (ap->flags & XFSMNT_NOATIME)
-		mp->m_flags |= XFS_MOUNT_NOATIME;
 	if (ap->flags & XFSMNT_RETERR)
 		mp->m_flags |= XFS_MOUNT_RETERR;
 	if (ap->flags & XFSMNT_NOALIGN)
@@ -654,11 +652,6 @@ xfs_mntupdate(
 	xfs_mount_t	*mp = XFS_BHVTOM(bdp);
 	int		error;
 
-	if (args->flags & XFSMNT_NOATIME)
-		mp->m_flags |= XFS_MOUNT_NOATIME;
-	else
-		mp->m_flags &= ~XFS_MOUNT_NOATIME;
-
 	if (args->flags & XFSMNT_BARRIER)
 		mp->m_flags |= XFS_MOUNT_BARRIER;
 	else