This is a note to let you know that I've just added the patch titled
ext4: fix bad checksum after online resize
to the 6.1-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-fix-bad-checksum-after-online-resize.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a408f33e895e455f16cf964cb5cd4979b658db7b Mon Sep 17 00:00:00 2001
From: Baokun Li <libaokun1@xxxxxxxxxx>
Date: Thu, 17 Nov 2022 12:03:39 +0800
Subject: ext4: fix bad checksum after online resize
From: Baokun Li <libaokun1@xxxxxxxxxx>
commit a408f33e895e455f16cf964cb5cd4979b658db7b upstream.
When online resizing is performed twice consecutively, the error message
"Superblock checksum does not match superblock" is displayed for the
second time. Here's the reproducer:
mkfs.ext4 -F /dev/sdb 100M
mount /dev/sdb /tmp/test
resize2fs /dev/sdb 5G
resize2fs /dev/sdb 6G
To solve this issue, we moved the update of the checksum after the
es->s_overhead_clusters is updated.
Fixes: 026d0d27c488 ("ext4: reduce computation of overhead during resize")
Fixes: de394a86658f ("ext4: update s_overhead_clusters in the superblock during an on-line resize")
Signed-off-by: Baokun Li <libaokun1@xxxxxxxxxx>
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
Cc: stable@xxxxxxxxxx
Link: https://lore.kernel.org/r/20221117040341.1380702-2-libaokun1@xxxxxxxxxx
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ext4/resize.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -1476,8 +1476,6 @@ static void ext4_update_super(struct sup
* active. */
ext4_r_blocks_count_set(es, ext4_r_blocks_count(es) +
reserved_blocks);
- ext4_superblock_csum_set(sb);
- unlock_buffer(sbi->s_sbh);
/* Update the free space counts */
percpu_counter_add(&sbi->s_freeclusters_counter,
@@ -1513,6 +1511,8 @@ static void ext4_update_super(struct sup
ext4_calculate_overhead(sb);
es->s_overhead_clusters = cpu_to_le32(sbi->s_overhead);
+ ext4_superblock_csum_set(sb);
+ unlock_buffer(sbi->s_sbh);
if (test_opt(sb, DEBUG))
printk(KERN_DEBUG "EXT4-fs: added group %u:"
"%llu blocks(%llu free %llu reserved)\n", flex_gd->count,
Patches currently in stable-queue which might be from libaokun1@xxxxxxxxxx are
queue-6.1/ext4-fix-use-after-free-in-ext4_orphan_cleanup.patch
queue-6.1/ext4-fix-bug_on-in-__es_tree_search-caused-by-bad-boot-loader-inode.patch
queue-6.1/ext4-add-inode-table-check-in-__ext4_get_inode_loc-to-aovid-possible-infinite-loop.patch
queue-6.1/ext4-add-helper-to-check-quota-inums.patch
queue-6.1/ext4-fix-corruption-when-online-resizing-a-1k-bigalloc-fs.patch
queue-6.1/ext4-fix-corrupt-backup-group-descriptors-after-online-resize.patch
queue-6.1/ext4-add-ext4_iget_bad-flag-to-prevent-unexpected-bad-inode.patch
queue-6.1/ext4-correct-inconsistent-error-msg-in-nojournal-mode.patch
queue-6.1/ext4-fix-bug_on-in-__es_tree_search-caused-by-bad-quota-inode.patch
queue-6.1/ext4-fix-bad-checksum-after-online-resize.patch
