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| author |  Mike Snitzer <snitzer@kernel.org>
| 2022-03-24 16:35:25 -0400 |
|---|---|---|
| committer |  Jens Axboe <axboe@kernel.dk>
| 2022-04-17 16:49:40 -0600 |
| commit | b53f3dcd705e52a07bd0311870dbfb6842e88c91 (patch) | |
| tree | 0178a6d8ffcda464a458ae3f6ba7a21b337c01f2 /include | |
| parent | block: allow using the per-cpu bio cache from bio_alloc_bioset (diff) | |
| download | linux-b53f3dcd705e52a07bd0311870dbfb6842e88c91.tar.gz linux-b53f3dcd705e52a07bd0311870dbfb6842e88c91.tar.bz2 linux-b53f3dcd705e52a07bd0311870dbfb6842e88c91.zip | |
block: allow use of per-cpu bio alloc cache by block drivers
Refine per-cpu bio alloc cache interfaces so that DM and other block
drivers can properly create and use the cache:
DM uses bioset_init_from_src() to do its final bioset initialization,
so must update bioset_init_from_src() to set BIOSET_PERCPU_CACHE if
%src bioset has a cache.
Also move bio_clear_polled() to include/linux/bio.h to allow users
outside of block core.
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220324203526.62306-3-snitzer@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bio.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h index 0fe8a51a0778..8e87f3065042 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -780,6 +780,12 @@ static inline void bio_set_polled(struct bio *bio, struct kiocb *kiocb) bio->bi_opf |= REQ_NOWAIT; } +static inline void bio_clear_polled(struct bio *bio) +{ + /* can't support alloc cache if we turn off polling */ + bio->bi_opf &= ~(REQ_POLLED | REQ_ALLOC_CACHE); +} + struct bio *blk_next_bio(struct bio *bio, struct block_device *bdev, unsigned int nr_pages, unsigned int opf, gfp_t gfp); |