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Message-ID: <1c7936ea-7bbc-49b7-bc85-b877129272f9@huaweicloud.com>
Date: Mon, 30 Sep 2024 10:37:19 +0800
From: Zhang Yi <yi.zhang@...weicloud.com>
To: Ye Bin <yebin@...weicloud.com>
Cc: jack@...e.cz, zhangxiaoxu5@...wei.com, tytso@....edu,
adilger.kernel@...ger.ca, linux-ext4@...r.kernel.org
Subject: Re: [PATCH v2 3/6] jbd2: refactor JBD2_COMMIT_BLOCK process in
do_one_pass()
On 2024/9/30 8:59, Ye Bin wrote:
> From: Ye Bin <yebin10@...wei.com>
>
> To make JBD2_COMMIT_BLOCK process more clean, no functional change.
>
> Signed-off-by: Ye Bin <yebin10@...wei.com>
> Reviewed-by: Jan Kara <jack@...e.cz>
Looks good to me.
Reviewed-by: Zhang Yi <yi.zhang@...wei.com>
> ---
> fs/jbd2/recovery.c | 55 ++++++++++++++++++++++++----------------------
> 1 file changed, 29 insertions(+), 26 deletions(-)
>
> diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
> index 0adf0cb31a03..0d697979d83e 100644
> --- a/fs/jbd2/recovery.c
> +++ b/fs/jbd2/recovery.c
> @@ -728,6 +728,11 @@ static int do_one_pass(journal_t *journal,
> continue;
>
> case JBD2_COMMIT_BLOCK:
> + if (pass != PASS_SCAN) {
> + next_commit_ID++;
> + continue;
> + }
> +
> /* How to differentiate between interrupted commit
> * and journal corruption ?
> *
> @@ -790,8 +795,7 @@ static int do_one_pass(journal_t *journal,
> * much to do other than move on to the next sequence
> * number.
> */
> - if (pass == PASS_SCAN &&
> - jbd2_has_feature_checksum(journal)) {
> + if (jbd2_has_feature_checksum(journal)) {
> struct commit_header *cbh =
> (struct commit_header *)bh->b_data;
> unsigned found_chksum =
> @@ -815,34 +819,33 @@ static int do_one_pass(journal_t *journal,
> goto chksum_error;
>
> crc32_sum = ~0;
> + goto chksum_ok;
> }
> - if (pass == PASS_SCAN &&
> - !jbd2_commit_block_csum_verify(journal,
> - bh->b_data)) {
> - if (jbd2_commit_block_csum_verify_partial(
> - journal,
> - bh->b_data)) {
> - pr_notice("JBD2: Find incomplete commit block in transaction %u block %lu\n",
> - next_commit_ID, next_log_block);
> - goto chksum_ok;
> - }
> - chksum_error:
> - if (commit_time < last_trans_commit_time)
> - goto ignore_crc_mismatch;
> - info->end_transaction = next_commit_ID;
> - info->head_block = head_block;
>
> - if (!jbd2_has_feature_async_commit(journal)) {
> - journal->j_failed_commit =
> - next_commit_ID;
> - break;
> - }
> + if (jbd2_commit_block_csum_verify(journal, bh->b_data))
> + goto chksum_ok;
> +
> + if (jbd2_commit_block_csum_verify_partial(journal,
> + bh->b_data)) {
> + pr_notice("JBD2: Find incomplete commit block in transaction %u block %lu\n",
> + next_commit_ID, next_log_block);
> + goto chksum_ok;
> }
> - if (pass == PASS_SCAN) {
> - chksum_ok:
> - last_trans_commit_time = commit_time;
> - head_block = next_log_block;
> +
> +chksum_error:
> + if (commit_time < last_trans_commit_time)
> + goto ignore_crc_mismatch;
> + info->end_transaction = next_commit_ID;
> + info->head_block = head_block;
> +
> + if (!jbd2_has_feature_async_commit(journal)) {
> + journal->j_failed_commit = next_commit_ID;
> + break;
> }
> +
> +chksum_ok:
> + last_trans_commit_time = commit_time;
> + head_block = next_log_block;
> next_commit_ID++;
> continue;
>
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