diff mbox series

[03/23] block: add a bvec_set_virt helper

Message ID 20230203150634.3199647-4-hch@lst.de (mailing list archive)
State Not Applicable
Headers show
Series [01/23] block: factor out a bvec_set_page helper | expand

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Context Check Description
netdev/tree_selection success Guessed tree name to be net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter warning Series does not have a cover letter
netdev/patch_count fail Series longer than 15 patches (and no cover letter)
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 13596 this patch: 13596
netdev/cc_maintainers success CCed 2 of 2 maintainers
netdev/build_clang success Errors and warnings before: 3087 this patch: 3087
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 14333 this patch: 14333
netdev/checkpatch warning CHECK: Alignment should match open parenthesis
netdev/kdoc success Errors and warnings before: 2 this patch: 2
netdev/source_inline success Was 0 now: 0

Commit Message

Christoph Hellwig Feb. 3, 2023, 3:06 p.m. UTC 
A small wrapper around bvec_set_page for callers that have a virtual
address.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
 include/linux/bvec.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)
diff mbox series

Patch

diff --git a/include/linux/bvec.h b/include/linux/bvec.h
index 2bae1134499e7f..f2d22931f3030a 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 */