[merged mm-hotfixes-stable] ocfs2-fix-the-space-leak-in-la-when-releasing-la.patch removed from -mm tree

[merged mm-hotfixes-stable] ocfs2-fix-the-space-leak-in-la-when-releasing-la.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: ocfs2: fix the space leak in LA when releasing LA
has been removed from the -mm tree.  Its filename was
     ocfs2-fix-the-space-leak-in-la-when-releasing-la.patch

This patch was dropped because it was merged into the mm-hotfixes-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Heming Zhao <heming.zhao@suse.com>
Subject: ocfs2: fix the space leak in LA when releasing LA
Date: Thu, 5 Dec 2024 18:48:33 +0800

Commit 30dd3478c3cd ("ocfs2: correctly use ocfs2_find_next_zero_bit()")
introduced an issue, the ocfs2_sync_local_to_main() ignores the last
contiguous free bits, which causes an OCFS2 volume to lose the last free
clusters of LA window during the release routine.

Please note, because commit dfe6c5692fb5 ("ocfs2: fix the la space leak
when unmounting an ocfs2 volume") was reverted, this commit is a
replacement fix for commit dfe6c5692fb5.

Link: https://lkml.kernel.org/r/20241205104835.18223-3-heming.zhao@suse.com
Fixes: 30dd3478c3cd ("ocfs2: correctly use ocfs2_find_next_zero_bit()")
Signed-off-by: Heming Zhao <heming.zhao@suse.com>
Suggested-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/ocfs2/localalloc.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

--- a/fs/ocfs2/localalloc.c~ocfs2-fix-the-space-leak-in-la-when-releasing-la
+++ a/fs/ocfs2/localalloc.c
@@ -971,9 +971,9 @@ static int ocfs2_sync_local_to_main(stru
 	start = count = 0;
 	left = le32_to_cpu(alloc->id1.bitmap1.i_total);
 
-	while ((bit_off = ocfs2_find_next_zero_bit(bitmap, left, start)) <
-	       left) {
-		if (bit_off == start) {
+	while (1) {
+		bit_off = ocfs2_find_next_zero_bit(bitmap, left, start);
+		if ((bit_off < left) && (bit_off == start)) {
 			count++;
 			start++;
 			continue;
@@ -998,6 +998,8 @@ static int ocfs2_sync_local_to_main(stru
 			}
 		}
 
+		if (bit_off >= left)
+			break;
 		count = 1;
 		start = bit_off + 1;
 	}
_

Patches currently in -mm which might be from heming.zhao@suse.com are