gfs2: Reconfiguring frozen filesystem already rejected

jira LE-1907
Rebuild_History Non-Buildable kernel-4.18.0-477.27.1.el8_8
commit-author Andreas Gruenbacher <[email protected]>
commit 9e4f095

Reconfiguring a frozen filesystem is already rejected in
reconfigure_super(), so there is no need to check for that condition
again at the filesystem level.

	Signed-off-by: Andreas Gruenbacher <[email protected]>
(cherry picked from commit 9e4f095)
	Signed-off-by: Jonathan Maple <[email protected]>

Author: PlaidCat

fs/gfs2/ops_fstype.c

@@ -1564,20 +1564,13 @@ static int gfs2_reconfigure(struct fs_context *fc)
 		fc->sb_flags |= SB_RDONLY;
 
 	if ((sb->s_flags ^ fc->sb_flags) & SB_RDONLY) {
-		struct gfs2_holder freeze_gh;
-
-		error = gfs2_freeze_lock_shared(sdp, &freeze_gh, 0);
-		if (error)
-			return -EINVAL;
-
 		if (fc->sb_flags & SB_RDONLY) {
 			gfs2_make_fs_ro(sdp);
 		} else {
 			error = gfs2_make_fs_rw(sdp);
 			if (error)
 				errorfc(fc, "unable to remount read-write");
 		}
-		gfs2_freeze_unlock(&freeze_gh);
 	}
 	sdp->sd_args = *newargs;