On Mon, Aug 06, 2012 at 03:08:39PM -0700, Kent Overstreet wrote:
How about the following?
There was no API to kmalloc bio and clone and osdblk was using
explicit bio_kmalloc() + __bio_clone(). (my guess here) As this is
inconvenient and there will be more users of it in the future, add
bio_clone_kmalloc() and use it in osdblk.
> Acked-by: Boaz Harrosh <bharr...@panasas.com>
> Signed-off-by: Kent Overstreet <koverstr...@google.com>
> ---
> drivers/block/osdblk.c | 3 +--
> fs/bio.c | 13 +++++++++++++
> fs/exofs/ore.c | 5 ++---
> include/linux/bio.h | 1 +
> 4 files changed, 17 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/block/osdblk.c b/drivers/block/osdblk.c
> index 87311eb..1bbc681 100644
> --- a/drivers/block/osdblk.c
> +++ b/drivers/block/osdblk.c
> @@ -266,11 +266,10 @@ static struct bio *bio_chain_clone(struct bio
> *old_chain, gfp_t gfpmask)
> struct bio *tmp, *new_chain = NULL, *tail = NULL;
>
> while (old_chain) {
> - tmp = bio_kmalloc(gfpmask, old_chain->bi_max_vecs);
> + tmp = bio_clone_kmalloc(old_chain, gfpmask);
> if (!tmp)
> goto err_out;
>
> - __bio_clone(tmp, old_chain);
> tmp->bi_bdev = NULL;
> gfpmask &= ~__GFP_WAIT;
> tmp->bi_next = NULL;
> diff --git a/fs/bio.c b/fs/bio.c
> index f0c865b..77b9313 100644
> --- a/fs/bio.c
> +++ b/fs/bio.c
> @@ -497,6 +497,19 @@ struct bio *bio_clone(struct bio *bio, gfp_t gfp_mask)
> }
> EXPORT_SYMBOL(bio_clone);
>
/**
PLEASE.
> +struct bio *bio_clone_kmalloc(struct bio *bio, gfp_t gfp_mask)
> +{
> + struct bio *b = bio_kmalloc(gfp_mask, bio->bi_max_vecs);
Can't we use %NULL bioset as an indication to allocate from kmalloc
instead of duping interfaces like this?
Thanks.
--
tejun
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