The quilt patch titled
Subject: nilfs2: do not propagate ENOENT error from nilfs_sufile_mark_dirty()
has been removed from the -mm tree. Its filename was
nilfs2-do-not-propagate-enoent-error-from-nilfs_sufile_mark_dirty.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: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxx>
Subject: nilfs2: do not propagate ENOENT error from nilfs_sufile_mark_dirty()
Date: Thu, 22 Aug 2024 00:46:27 +0900
nilfs_sufile_mark_dirty(), which marks a block in the sufile metadata file
as dirty in preparation for log writing, returns -ENOENT to the caller if
the block containing the segment usage of the specified segment is
missing.
This internal code can propagate through the log writer to system calls
such as fsync. To prevent this, treat this case as a filesystem error and
return -EIO instead.
Link: https://lkml.kernel.org/r/20240821154627.11848-6-konishi.ryusuke@xxxxxxxxx
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/nilfs2/sufile.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
--- a/fs/nilfs2/sufile.c~nilfs2-do-not-propagate-enoent-error-from-nilfs_sufile_mark_dirty
+++ a/fs/nilfs2/sufile.c
@@ -513,8 +513,15 @@ int nilfs_sufile_mark_dirty(struct inode
down_write(&NILFS_MDT(sufile)->mi_sem);
ret = nilfs_sufile_get_segment_usage_block(sufile, segnum, 0, &bh);
- if (ret)
+ if (unlikely(ret)) {
+ if (ret == -ENOENT) {
+ nilfs_error(sufile->i_sb,
+ "segment usage for segment %llu is unreadable due to a hole block",
+ (unsigned long long)segnum);
+ ret = -EIO;
+ }
goto out_sem;
+ }
kaddr = kmap_local_page(bh->b_page);
su = nilfs_sufile_block_get_segment_usage(sufile, segnum, bh, kaddr);
_
Patches currently in -mm which might be from konishi.ryusuke@xxxxxxxxx are
