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

This patch was dropped because it was merged into the mm-nonmm-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 la space leak when unmounting an ocfs2 volume Date: Fri, 19 Jul 2024 19:43:10 +0800

This bug has existed since the initial OCFS2 code. The code logic in ocfs2_sync_local_to_main() is wrong, as it ignores the last contiguous free bits, which causes an OCFS2 volume to lose the last free clusters of LA window on each umount command.

Link: https://lkml.kernel.org/r/20240719114310.14245-1-heming.zhao@suse.com Signed-off-by: Heming Zhao heming.zhao@suse.com Reviewed-by: Su Yue glass.su@suse.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: Gang He ghe@suse.com Cc: Jun Piao piaojun@huawei.com Cc: Heming Zhao heming.zhao@suse.com Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

fs/ocfs2/localalloc.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)

--- a/fs/ocfs2/localalloc.c~ocfs2-fix-the-la-space-leak-when-unmounting-an-ocfs2-volume +++ a/fs/ocfs2/localalloc.c @@ -1002,6 +1002,25 @@ static int ocfs2_sync_local_to_main(stru start = bit_off + 1; }

+ /* clear the contiguous bits until the end boundary */ + if (count) { + blkno = la_start_blk + + ocfs2_clusters_to_blocks(osb->sb, + start - count); + + trace_ocfs2_sync_local_to_main_free( + count, start - count, + (unsigned long long)la_start_blk, + (unsigned long long)blkno); + + status = ocfs2_release_clusters(handle, + main_bm_inode, + main_bm_bh, blkno, + count); + if (status < 0) + mlog_errno(status); + } + bail: if (status) mlog_errno(status); _

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