This is a note to let you know that I've just added the patch titled
ext4: correct inconsistent error msg in nojournal mode
to the 5.15-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:
ext4-correct-inconsistent-error-msg-in-nojournal-mod.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 32a8e0136c13e7cdf6183188dee2e50c3d69b6f6
Author: Baokun Li <libaokun1@xxxxxxxxxx>
Date: Wed Nov 9 15:43:43 2022 +0800
ext4: correct inconsistent error msg in nojournal mode
[ Upstream commit 89481b5fa8c0640e62ba84c6020cee895f7ac643 ]
When we used the journal_async_commit mounting option in nojournal mode,
the kernel told me that "can't mount with journal_checksum", was very
confusing. I find that when we mount with journal_async_commit, both the
JOURNAL_ASYNC_COMMIT and EXPLICIT_JOURNAL_CHECKSUM flags are set. However,
in the error branch, CHECKSUM is checked before ASYNC_COMMIT. As a result,
the above inconsistency occurs, and the ASYNC_COMMIT branch becomes dead
code that cannot be executed. Therefore, we exchange the positions of the
two judgments to make the error msg more accurate.
Signed-off-by: Baokun Li <libaokun1@xxxxxxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
Link: https://lore.kernel.org/r/20221109074343.4184862-1-libaokun1@xxxxxxxxxx
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Cc: stable@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index fd7565707975..1bb2e902667d 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4667,14 +4667,15 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
goto failed_mount3a;
} else {
/* Nojournal mode, all journal mount options are illegal */
- if (test_opt2(sb, EXPLICIT_JOURNAL_CHECKSUM)) {
+ if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) {
ext4_msg(sb, KERN_ERR, "can't mount with "
- "journal_checksum, fs mounted w/o journal");
+ "journal_async_commit, fs mounted w/o journal");
goto failed_mount3a;
}
- if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) {
+
+ if (test_opt2(sb, EXPLICIT_JOURNAL_CHECKSUM)) {
ext4_msg(sb, KERN_ERR, "can't mount with "
- "journal_async_commit, fs mounted w/o journal");
+ "journal_checksum, fs mounted w/o journal");
goto failed_mount3a;
}
if (sbi->s_commit_interval != JBD2_DEFAULT_MAX_COMMIT_AGE*HZ) {
