This is a note to let you know that I've just added the patch titled
erofs: allow empty device tags in flatdev mode
to the 6.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
erofs-allow-empty-device-tags-in-flatdev-mode.patch
and it can be found in the queue-6.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit dc70e568297472a081ac7b1348245573dc266029
Author: Jingbo Xu <jefflexu@xxxxxxxxxxxxxxxxx>
Date: Fri Sep 15 16:27:28 2023 +0800
erofs: allow empty device tags in flatdev mode
[ Upstream commit f939aeea7ab7d96cd321e7ac107f5a070836b66f ]
Device tags aren't actually required in flatdev mode, thus fix mount
failure due to empty device tags in flatdev mode.
Signed-off-by: Jingbo Xu <jefflexu@xxxxxxxxxxxxxxxxx>
Fixes: 8b465fecc35a ("erofs: support flattened block device for multi-blob images")
Reviewed-by: Jia Zhu <zhujia.zj@xxxxxxxxxxxxx>
Reviewed-by: Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230915082728.56588-1-jefflexu@xxxxxxxxxxxxxxxxx
Signed-off-by: Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 566f68ddfa36e..31a103399412e 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -238,7 +238,7 @@ static int erofs_init_device(struct erofs_buf *buf, struct super_block *sb,
return PTR_ERR(ptr);
dis = ptr + erofs_blkoff(sb, *pos);
- if (!dif->path) {
+ if (!sbi->devs->flatdev && !dif->path) {
if (!dis->tag[0]) {
erofs_err(sb, "empty device tag @ pos %llu", *pos);
return -EINVAL;
