diff options
| author | Mike Snitzer <snitzer@kernel.org> | 2022-03-24 21:35:25 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-04-18 00:49:40 +0200 |
| commit | b53f3dcd705e52a07bd0311870dbfb6842e88c91 (patch) | |
| tree | 0178a6d8ffcda464a458ae3f6ba7a21b337c01f2 /block | |
| parent | block: allow using the per-cpu bio cache from bio_alloc_bioset (diff) | |
| download | linux-b53f3dcd705e52a07bd0311870dbfb6842e88c91.tar.xz 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 'block')
| -rw-r--r-- | block/bio.c | 2 | ||||
| -rw-r--r-- | block/blk.h | 6 |
2 files changed, 2 insertions, 6 deletions
diff --git a/block/bio.c b/block/bio.c index c67f47c6cc8c..643a3a052c7e 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1767,6 +1767,8 @@ int bioset_init_from_src(struct bio_set *bs, struct bio_set *src) flags |= BIOSET_NEED_BVECS; if (src->rescue_workqueue) flags |= BIOSET_NEED_RESCUER; + if (src->cache) + flags |= BIOSET_PERCPU_CACHE; return bioset_init(bs, src->bio_pool.min_nr, src->front_pad, flags); } diff --git a/block/blk.h b/block/blk.h index 0d33e4ca2c52..4ea5167dc339 100644 --- a/block/blk.h +++ b/block/blk.h @@ -450,12 +450,6 @@ extern struct device_attribute dev_attr_events; extern struct device_attribute dev_attr_events_async; extern struct device_attribute dev_attr_events_poll_msecs; -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); -} - long blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg); long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg); |