On Mon, Sep 30, 2024 at 06:41:45PM +0200, Christoph Hellwig wrote:
> XFS currently does not support reducing the agcount, so error out if
> a logged sb buffer tries to shrink the agcount.
>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Looks good,
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
/me notes that cem is the release manager now, not chandan. Patches
should go to him.
/me updates his scripts
--D
> ---
> fs/xfs/xfs_log_recover.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
> index 03701409c7dcd6..3b5cd240bb62ef 100644
> --- a/fs/xfs/xfs_log_recover.c
> +++ b/fs/xfs/xfs_log_recover.c
> @@ -3343,6 +3343,10 @@ xlog_recover_update_agcount(
> int error;
>
> xfs_sb_from_disk(&mp->m_sb, dsb);
> + if (mp->m_sb.sb_agcount < old_agcount) {
> + xfs_alert(mp, "Shrinking AG count in log recovery");
> + return -EFSCORRUPTED;
> + }
> error = xfs_initialize_perag(mp, old_agcount, mp->m_sb.sb_agcount,
> mp->m_sb.sb_dblocks, &mp->m_maxagi);
> if (error) {
> --
> 2.45.2
>
>
