ext2_remount: don't bother with invalidate_inodes()

It's pointless - we *do* have busy inodes (root directory,
for one), so that call will fail and attempt to change
XIP flag will be ignored.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

fs/ext2/super.c

@@ -1221,9 +1221,7 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
 	}
 
 	es = sbi->s_es;
-	if (((sbi->s_mount_opt & EXT2_MOUNT_XIP) !=
-	    (old_mount_opt & EXT2_MOUNT_XIP)) &&
-	    invalidate_inodes(sb)) {
+	if ((sbi->s_mount_opt ^ old_mount_opt) & EXT2_MOUNT_XIP) {
 		ext2_msg(sb, KERN_WARNING, "warning: refusing change of "
 			 "xip flag with busy inodes while remounting");
 		sbi->s_mount_opt &= ~EXT2_MOUNT_XIP;