This is a note to let you know that I've just added the patch titled
f2fs: compress: fix to assign compress_level for lz4 correctly
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:
f2fs-compress-fix-to-assign-compress_level-for-lz4-c.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 f71e5cdcdfb8ae8db29873f2dcae30a3970cf259
Author: Chao Yu <chao@xxxxxxxxxx>
Date: Mon Aug 21 23:22:25 2023 +0800
f2fs: compress: fix to assign compress_level for lz4 correctly
[ Upstream commit 091a4dfbb1d32b06c031edbfe2a44af100c4604f ]
After remount, F2FS_OPTION().compress_level was assgin to
LZ4HC_DEFAULT_CLEVEL incorrectly, result in lz4hc:9 was enabled, fix it.
1. mount /dev/vdb
/dev/vdb on /mnt/f2fs type f2fs (...,compress_algorithm=lz4,compress_log_size=2,...)
2. mount -t f2fs -o remount,compress_log_size=3 /mnt/f2fs/
3. mount|grep f2fs
/dev/vdb on /mnt/f2fs type f2fs (...,compress_algorithm=lz4:9,compress_log_size=3,...)
Fixes: 00e120b5e4b5 ("f2fs: assign default compression level")
Signed-off-by: Chao Yu <chao@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index a067466a694c9..8d9d2ee7f3c7f 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -591,7 +591,7 @@ static int f2fs_set_lz4hc_level(struct f2fs_sb_info *sbi, const char *str)
unsigned int level;
if (strlen(str) == 3) {
- F2FS_OPTION(sbi).compress_level = LZ4HC_DEFAULT_CLEVEL;
+ F2FS_OPTION(sbi).compress_level = 0;
return 0;
}
