On Fri, Feb 24, 2023 at 10:08:44AM -0700, Jens Axboe wrote:
> This isn't strictly needed in terms of correctness, but it does allow
> polling to know if the bio has been put already by a different task
> and hence avoid polling something that we don't need to.
>
> Cc: stable@xxxxxxxxxxxxxxx
> Fixes: be4d234d7aeb ("bio: add allocation cache abstraction")
> Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Looks good.
Reviewed-by: Keith Busch <kbusch@xxxxxxxxxx>
> ---
> block/bio.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/block/bio.c b/block/bio.c
> index 2693f34afb7e..605c40025068 100644
> --- a/block/bio.c
> +++ b/block/bio.c
> @@ -772,6 +772,7 @@ static inline void bio_put_percpu_cache(struct bio *bio)
>
> if ((bio->bi_opf & REQ_POLLED) && !WARN_ON_ONCE(in_interrupt())) {
> bio->bi_next = cache->free_list;
> + bio->bi_bdev = NULL;
> cache->free_list = bio;
> cache->nr++;
> } else {
> --
> 2.39.1
>
