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block: make max_integrity_io_size public 

File systems that generate integrity will need this, so move it out
of the block private or blk-mq specific headers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Tested-by: Anuj Gupta <anuj20.g@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
master
Christoph Hellwig 2026-02-23 05:20:05 -08:00 committed by Jens Axboe
parent 3f00626832
commit 8c56ef1015
3 changed files with 18 additions and 18 deletions
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13
block/blk-settings.c
View File

@ -123,19 +123,6 @@ static int blk_validate_zoned_limits(struct queue_limits *lim)
return 0;
}
/*
* Maximum size of I/O that needs a block layer integrity buffer. Limited
* by the number of intervals for which we can fit the integrity buffer into
* the buffer size. Because the buffer is a single segment it is also limited
* by the maximum segment size.
*/
static inline unsigned int max_integrity_io_size(struct queue_limits *lim)
{
return min_t(unsigned int, lim->max_segment_size,
(BLK_INTEGRITY_MAX_SIZE / lim->integrity.metadata_size) <<
lim->integrity.interval_exp);
}
static int blk_validate_integrity_limits(struct queue_limits *lim)
{
struct blk_integrity *bi = &lim->integrity;

5
include/linux/blk-integrity.h
View File

@ -8,11 +8,6 @@
struct request;
/*
* Maximum contiguous integrity buffer allocation.
*/
#define BLK_INTEGRITY_MAX_SIZE SZ_2M
enum blk_integrity_flags {
BLK_INTEGRITY_NOVERIFY = 1 << 0,
BLK_INTEGRITY_NOGENERATE = 1 << 1,

18
include/linux/blkdev.h
View File

@ -1881,6 +1881,24 @@ static inline int bio_split_rw_at(struct bio *bio,
return bio_split_io_at(bio, lim, segs, max_bytes, lim->dma_alignment);
}
/*
* Maximum contiguous integrity buffer allocation.
*/
#define BLK_INTEGRITY_MAX_SIZE SZ_2M
/*
* Maximum size of I/O that needs a block layer integrity buffer. Limited
* by the number of intervals for which we can fit the integrity buffer into
* the buffer size. Because the buffer is a single segment it is also limited
* by the maximum segment size.
*/
static inline unsigned int max_integrity_io_size(struct queue_limits *lim)
{
return min_t(unsigned int, lim->max_segment_size,
(BLK_INTEGRITY_MAX_SIZE / lim->integrity.metadata_size) <<
lim->integrity.interval_exp);
}
#define DEFINE_IO_COMP_BATCH(name) struct io_comp_batch name = { }
#endif /* _LINUX_BLKDEV_H */