This is a note to let you know that I've just added the patch titled
ext4: handle error of ext4_setup_system_zone() on remount
to the 4.14-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-handle-error-of-ext4_setup_system_zone-on-remount.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Wed Mar 17 06:08:26 PM CET 2021
From: Jan Kara <jack@xxxxxxx>
Date: Wed, 17 Mar 2021 17:44:12 +0100
Subject: ext4: handle error of ext4_setup_system_zone() on remount
To: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>, Jan Kara <jack@xxxxxxx>, Lukas Czerner <lczerner@xxxxxxxxxx>, Theodore Ts'o <tytso@xxxxxxx>
Message-ID: <20210317164414.17364-2-jack@xxxxxxx>
From: Jan Kara <jack@xxxxxxx>
commit d176b1f62f242ab259ff665a26fbac69db1aecba upstream.
ext4_setup_system_zone() can fail. Handle the failure in ext4_remount().
Reviewed-by: Lukas Czerner <lczerner@xxxxxxxxxx>
Signed-off-by: Jan Kara <jack@xxxxxxx>
Link: https://lore.kernel.org/r/20200728130437.7804-2-jack@xxxxxxx
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ext4/super.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5364,7 +5364,10 @@ static int ext4_remount(struct super_blo
ext4_register_li_request(sb, first_not_zeroed);
}
- ext4_setup_system_zone(sb);
+ err = ext4_setup_system_zone(sb);
+ if (err)
+ goto restore_opts;
+
if (sbi->s_journal == NULL && !(old_sb_flags & MS_RDONLY))
ext4_commit_super(sb, 1);
Patches currently in stable-queue which might be from jack@xxxxxxx are
queue-4.14/ext4-handle-error-of-ext4_setup_system_zone-on-remount.patch
queue-4.14/ext4-check-journal-inode-extents-more-carefully.patch
queue-4.14/ext4-don-t-allow-overlapping-system-zones.patch
