On Wed, 2009-06-10 at 16:38 +0200, Geert Uytterhoeven wrote:
> Introduce bio_list_peek(), to obtain a pointer to the first bio on the
> bio_list
> without actually removing it from the list. This is needed when you want to
> serialize based on the list being empty or not.
Leaving that one (and the next one) out for now until Jens Ack them.
Cheers,
Ben.
> Signed-off-by: Geert Uytterhoeven <geert.uytterhoe...@sonycom.com>
> Cc: Jens Axboe <ax...@kernel.dk>
> ---
> include/linux/bio.h | 5 +++++
> 1 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/include/linux/bio.h b/include/linux/bio.h
> index 7b214fd..618bb7d 100644
> --- a/include/linux/bio.h
> +++ b/include/linux/bio.h
> @@ -590,6 +590,11 @@ static inline void bio_list_merge_head(struct bio_list
> *bl,
> bl->head = bl2->head;
> }
>
> +static inline struct bio *bio_list_peek(struct bio_list *bl)
> +{
> + return bl->head;
> +}
> +
> static inline struct bio *bio_list_pop(struct bio_list *bl)
> {
> struct bio *bio = bl->head;
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