linux-kernel - Re: [PATCH 1/7] jbd2: correctly compare tids with tid_geq function in jbd2_fc_begin

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <2209e7b1-999f-ce69-6d9f-4b825fa6f7d9@huaweicloud.com>
Date: Wed, 31 Jul 2024 11:24:46 +0800
From: Zhang Yi <yi.zhang@...weicloud.com>
To: Kemeng Shi <shikemeng@...weicloud.com>, tytso@....edu, jack@...e.com
Cc: linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/7] jbd2: correctly compare tids with tid_geq function in
 jbd2_fc_begin_commit

On 2024/7/30 19:33, Kemeng Shi wrote:
> Use tid_geq to compare tids to work over sequence number wraps.
> 
> Signed-off-by: Kemeng Shi <shikemeng@...weicloud.com>

Looks good to me.

Reviewed-by: Zhang Yi <yi.zhang@...wei.com>

> ---
>  fs/jbd2/journal.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
> index 1ebf2393bfb7..da5a56d700f1 100644
> --- a/fs/jbd2/journal.c
> +++ b/fs/jbd2/journal.c
> @@ -710,7 +710,7 @@ int jbd2_fc_begin_commit(journal_t *journal, tid_t tid)
>  		return -EINVAL;
>  
>  	write_lock(&journal->j_state_lock);
> -	if (tid <= journal->j_commit_sequence) {
> +	if (tid_geq(journal->j_commit_sequence, tid)) {
>  		write_unlock(&journal->j_state_lock);
>  		return -EALREADY;
>  	}
>