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| author | Mike Snitzer <snitzer@kernel.org> | 2022-03-24 16:35:24 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-04-17 16:49:40 -0600 |
| commit | 0df71650c051ab106c921de257f4b38e9e3dd251 (patch) | |
| tree | 39bed0b9aae98b2357378bbfb077a192d2f4dcbd /block/fops.c | |
| parent | b2d229d4ddb17db541098b83524d901257e93845 (diff) | |
| download | lwn-0df71650c051ab106c921de257f4b38e9e3dd251.tar.gz lwn-0df71650c051ab106c921de257f4b38e9e3dd251.zip | |
block: allow using the per-cpu bio cache from bio_alloc_bioset
Replace the BIO_PERCPU_CACHE bio-internal flag with a REQ_ALLOC_CACHE
one that can be passed to bio_alloc / bio_alloc_bioset, and implement
the percpu cache allocation logic in a helper called from
bio_alloc_bioset. This allows any bio_alloc_bioset user to use the
percpu caches instead of having the functionality tied to struct kiocb.
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
[hch: refactored a bit]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220324203526.62306-2-snitzer@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/fops.c')
| -rw-r--r-- | block/fops.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/block/fops.c b/block/fops.c index 9f2ecec406b0..ba5e7d5ff9a5 100644 --- a/block/fops.c +++ b/block/fops.c @@ -197,8 +197,10 @@ static ssize_t __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, (bdev_logical_block_size(bdev) - 1)) return -EINVAL; - bio = bio_alloc_kiocb(iocb, bdev, nr_pages, opf, &blkdev_dio_pool); - + if (iocb->ki_flags & IOCB_ALLOC_CACHE) + opf |= REQ_ALLOC_CACHE; + bio = bio_alloc_bioset(bdev, nr_pages, opf, GFP_KERNEL, + &blkdev_dio_pool); dio = container_of(bio, struct blkdev_dio, bio); atomic_set(&dio->ref, 1); /* @@ -320,7 +322,10 @@ static ssize_t __blkdev_direct_IO_async(struct kiocb *iocb, (bdev_logical_block_size(bdev) - 1)) return -EINVAL; - bio = bio_alloc_kiocb(iocb, bdev, nr_pages, opf, &blkdev_dio_pool); + if (iocb->ki_flags & IOCB_ALLOC_CACHE) + opf |= REQ_ALLOC_CACHE; + bio = bio_alloc_bioset(bdev, nr_pages, opf, GFP_KERNEL, + &blkdev_dio_pool); dio = container_of(bio, struct blkdev_dio, bio); dio->flags = 0; dio->iocb = iocb; |