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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-08-31 04:30:30 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-08-31 04:30:30 +0200 |
| commit | 3b629f8d6dc04d3af94429c18fe17239d6fbe2c3 (patch) | |
| tree | f67dd6ef5c662927ee4c6533450c7b2c5724f69e /block/blk.h | |
| parent | Merge tag 'for-5.15/io_uring-2021-08-30' of git://git.kernel.dk/linux-block (diff) | |
| parent | bio: improve kerneldoc documentation for bio_alloc_kiocb() (diff) | |
| download | linux-3b629f8d6dc04d3af94429c18fe17239d6fbe2c3.tar.xz linux-3b629f8d6dc04d3af94429c18fe17239d6fbe2c3.zip | |
Merge tag 'io_uring-bio-cache.5-2021-08-30' of git://git.kernel.dk/linux-block
Pull support for struct bio recycling from Jens Axboe:
"This adds bio recycling support for polled IO, allowing quick reuse of
a bio for high IOPS scenarios via a percpu bio_set list.
It's good for almost a 10% improvement in performance, bumping our
per-core IO limit from ~3.2M IOPS to ~3.5M IOPS"
* tag 'io_uring-bio-cache.5-2021-08-30' of git://git.kernel.dk/linux-block:
bio: improve kerneldoc documentation for bio_alloc_kiocb()
block: provide bio_clear_hipri() helper
block: use the percpu bio cache in __blkdev_direct_IO
io_uring: enable use of bio alloc cache
block: clear BIO_PERCPU_CACHE flag if polling isn't supported
bio: add allocation cache abstraction
fs: add kiocb alloc cache flag
bio: optimize initialization of a bio
Diffstat (limited to 'block/blk.h')
| -rw-r--r-- | block/blk.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/block/blk.h b/block/blk.h index 346d184c82b0..8c96b0c90c48 100644 --- a/block/blk.h +++ b/block/blk.h @@ -366,4 +366,11 @@ 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_hipri(struct bio *bio) +{ + /* can't support alloc cache if we turn off polling */ + bio_clear_flag(bio, BIO_PERCPU_CACHE); + bio->bi_opf &= ~REQ_HIPRI; +} + #endif /* BLK_INTERNAL_H */ |