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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 /include/linux/blk_types.h | |
| parent | b2d229d4ddb17db541098b83524d901257e93845 (diff) | |
| download | linux-0df71650c051ab106c921de257f4b38e9e3dd251.tar.bz2 | |
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 'include/linux/blk_types.h')
| -rw-r--r-- | include/linux/blk_types.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index 1973ef9bd40f..4968cb17b13b 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -329,7 +329,6 @@ enum { BIO_QOS_MERGED, /* but went through rq_qos merge path */ BIO_REMAPPED, BIO_ZONE_WRITE_LOCKED, /* Owns a zoned device zone write lock */ - BIO_PERCPU_CACHE, /* can participate in per-cpu alloc cache */ BIO_FLAG_LAST }; @@ -414,6 +413,7 @@ enum req_flag_bits { __REQ_NOUNMAP, /* do not free blocks when zeroing */ __REQ_POLLED, /* caller polls for completion using bio_poll */ + __REQ_ALLOC_CACHE, /* allocate IO from cache if available */ /* for driver use */ __REQ_DRV, @@ -439,6 +439,7 @@ enum req_flag_bits { #define REQ_NOUNMAP (1ULL << __REQ_NOUNMAP) #define REQ_POLLED (1ULL << __REQ_POLLED) +#define REQ_ALLOC_CACHE (1ULL << __REQ_ALLOC_CACHE) #define REQ_DRV (1ULL << __REQ_DRV) #define REQ_SWAP (1ULL << __REQ_SWAP) |