[PATCH 03/23] block: add a bvec_set_virt helper
From: Christoph Hellwig <hch@lst.de>
Date: 2023-01-30 09:23:54
Also in:
ceph-devel, io-uring, kvm, linux-block, linux-cifs, linux-fsdevel, linux-mm, linux-nfs, linux-nvme, linux-scsi, target-devel, virtualization
Subsystem:
the rest · Maintainer:
Linus Torvalds
A small wrapper around bvec_set_page for callers that have a virtual address. Signed-off-by: Christoph Hellwig <hch@lst.de> --- include/linux/bvec.h | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/include/linux/bvec.h b/include/linux/bvec.h
index f094512ce3bda9..7031d83af02267 100644
--- a/include/linux/bvec.h
+++ b/include/linux/bvec.h@@ -63,6 +63,18 @@ 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 */
--
2.39.0