Commit 666e6550 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

block: add a bvec_set_virt helper 



A small wrapper around bvec_set_page for callers that have a virtual
address.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarChaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: default avatarJohannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20230203150634.3199647-4-hch@lst.de


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 26db5ee1

include/linux/bvec.h

+12 −0
Original line number Diff line number Diff line
@@ -62,6 +62,18 @@ static inline void bvec_set_folio(struct bio_vec *bv, struct folio *folio, 
	bvec_set_page(bv, &folio->page, len, offset);

}



/**

 * bvec_set_virt - initialize a bvec based on a virtual address

 * @bv:		bvec to initialize

 * @vaddr:	virtual address to set the bvec to

 * @len:	length of the bvec

 */

static inline void bvec_set_virt(struct bio_vec *bv, void *vaddr,

		unsigned int len)

{

	bvec_set_page(bv, virt_to_page(vaddr), len, offset_in_page(vaddr));

}



struct bvec_iter {

	sector_t		bi_sector;	/* device address in 512 byte

						   sectors */