diff options
| author | Jens Axboe <axboe@kernel.dk> | 2021-03-09 09:25:47 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-08-10 13:57:19 -0600 |
| commit | 8cf954fd6f6f684a2b10680c3816c486c02b0375 (patch) | |
| tree | b1ec853682dd732d76d0207aeef7e0ea7038fbab | |
| parent | 0d476bc7ae4a036f9ffc8270db2845a298583f40 (diff) | |
| download | linux-block-io_uring-bio-cache.3.tar.gz | |
iomap: enable use of bio allocation cacheio_uring-bio-cache.3
If the kiocb passed in has a bio cache specified, then use that to allocate
a (and free) new bio if possible.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | fs/iomap/direct-io.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 9398b8c31323b3..ccef77fec4a073 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -154,7 +154,10 @@ static void iomap_dio_bio_end_io(struct bio *bio) { struct iomap_dio *dio = bio->bi_private; bool should_dirty = (dio->flags & IOMAP_DIO_DIRTY); + struct bio_alloc_cache *cache = dio->iocb->ki_bio_cache; + if (!(dio->iocb->ki_flags & IOCB_ALLOC_CACHE)) + cache = NULL; if (bio->bi_status) iomap_dio_set_error(dio, blk_status_to_errno(bio->bi_status)); @@ -177,7 +180,7 @@ static void iomap_dio_bio_end_io(struct bio *bio) bio_check_pages_dirty(bio); } else { bio_release_pages(bio, false); - bio_put(bio); + bio_cache_put(cache, bio); } } @@ -305,7 +308,15 @@ iomap_dio_bio_actor(struct inode *inode, loff_t pos, loff_t length, goto out; } - bio = bio_alloc(GFP_KERNEL, nr_pages); + bio = NULL; + if (dio->iocb->ki_flags & IOCB_ALLOC_CACHE) { + bio = bio_cache_get(dio->iocb->ki_bio_cache, GFP_KERNEL, + nr_pages, &fs_bio_set); + if (!bio) + dio->iocb->ki_flags &= ~IOCB_ALLOC_CACHE; + } + if (!bio) + bio = bio_alloc(GFP_KERNEL, nr_pages); bio_set_dev(bio, iomap->bdev); bio->bi_iter.bi_sector = iomap_sector(iomap, pos); bio->bi_write_hint = dio->iocb->ki_hint; |