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block: lift bio_is_zone_append to bio.h

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Make bio_is_zone_append globally available, because file systems need
to use to check for a zone append bio in their end_io handlers to deal
with the block layer emulation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20241104062647.91160-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2024-11-04 07:26:31 +01:00 committed by Jens Axboe
parent 7ecd2cd4fa
commit 0ef2b9e698
2 changed files with 17 additions and 9 deletions
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9
block/blk.h
View File

@ -457,11 +457,6 @@ static inline bool bio_zone_write_plugging(struct bio *bio)
{
return bio_flagged(bio, BIO_ZONE_WRITE_PLUGGING);
}
static inline bool bio_is_zone_append(struct bio *bio)
{
return bio_op(bio) == REQ_OP_ZONE_APPEND ||
bio_flagged(bio, BIO_EMULATES_ZONE_APPEND);
}
void blk_zone_write_plug_bio_merged(struct bio *bio);
void blk_zone_write_plug_init_request(struct request *rq);
static inline void blk_zone_update_request_bio(struct request *rq,
@ -510,10 +505,6 @@ static inline bool bio_zone_write_plugging(struct bio *bio)
{
return false;
}
static inline bool bio_is_zone_append(struct bio *bio)
{
return false;
}
static inline void blk_zone_write_plug_bio_merged(struct bio *bio)
{
}

17
include/linux/bio.h
View File

@ -675,6 +675,23 @@ static inline void bio_clear_polled(struct bio *bio)
bio->bi_opf &= ~REQ_POLLED;
}
/**
* bio_is_zone_append - is this a zone append bio?
* @bio: bio to check
*
* Check if @bio is a zone append operation. Core block layer code and end_io
* handlers must use this instead of an open coded REQ_OP_ZONE_APPEND check
* because the block layer can rewrite REQ_OP_ZONE_APPEND to REQ_OP_WRITE if
* it is not natively supported.
*/
static inline bool bio_is_zone_append(struct bio *bio)
{
if (!IS_ENABLED(CONFIG_BLK_DEV_ZONED))
return false;
return bio_op(bio) == REQ_OP_ZONE_APPEND ||
bio_flagged(bio, BIO_EMULATES_ZONE_APPEND);
}
struct bio *blk_next_bio(struct bio *bio, struct block_device *bdev,
unsigned int nr_pages, blk_opf_t opf, gfp_t gfp);
struct bio *bio_chain_and_submit(struct bio *prev, struct bio *new);