Re: [PATCH -next v2 3/6] ext4: compare to local seq and nodename when check conflict

From: Jan Kara
Date: Thu Oct 07 2021 - 08:36:28 EST


On Sat 11-09-21 17:00:56, Ye Bin wrote:
> As mmp and check_mmp is point to the same data, so there will never
> detect conflict.
> To solve this issue just compare to local data.
>
> Signed-off-by: Ye Bin <yebin10@xxxxxxxxxx>

Good spotting! Just one nit below.

> ---
> fs/ext4/mmp.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
> index c781b09a78c9..4433fe7e9e86 100644
> --- a/fs/ext4/mmp.c
> +++ b/fs/ext4/mmp.c
> @@ -154,6 +154,7 @@ static int kmmpd(void *data)
> unsigned long last_update_time;
> unsigned long last_check_time;
> unsigned long diff;
> + char nodename[64];

Perhaps define a constant for the length of nodename and use it here as
well as in the declaration of mmp_struct->mmp_nodename?

Honza
--
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR