Re: [PATCH v2 3/6] super: skip dying superblocks early
From: Jan Kara
Date: Mon Mar 31 2025 - 06:00:28 EST
On Sat 29-03-25 09:42:16, Christian Brauner wrote:
> Make all iterators uniform by performing an early check whether the
> superblock is dying.
>
> Signed-off-by: Christian Brauner <brauner@xxxxxxxxxx>
Looks good. Feel free to add:
Reviewed-by: Jan Kara <jack@xxxxxxx>
Honza
> ---
> fs/super.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/fs/super.c b/fs/super.c
> index b1acfc38ba0c..c67ea3cdda41 100644
> --- a/fs/super.c
> +++ b/fs/super.c
> @@ -925,6 +925,9 @@ void iterate_supers(void (*f)(struct super_block *, void *), void *arg)
> list_for_each_entry(sb, &super_blocks, s_list) {
> bool locked;
>
> + if (super_flags(sb, SB_DYING))
> + continue;
> +
> sb->s_count++;
> spin_unlock(&sb_lock);
>
> @@ -962,6 +965,9 @@ void iterate_supers_type(struct file_system_type *type,
> hlist_for_each_entry(sb, &type->fs_supers, s_instances) {
> bool locked;
>
> + if (super_flags(sb, SB_DYING))
> + continue;
> +
> sb->s_count++;
> spin_unlock(&sb_lock);
>
>
> --
> 2.47.2
>
--
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR