[PATCH 02/23] block: add a bvec_set_folio helper

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A smaller wrapper around bvec_set_page that takes a folio instead.
There are only two potential users for this in the tree, but the number
will grow in the future.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 include/linux/bvec.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/include/linux/bvec.h b/include/linux/bvec.h
index 9e3dac51eb26b6..f094512ce3bda9 100644
--- a/include/linux/bvec.h
+++ b/include/linux/bvec.h
@@ -50,6 +50,19 @@ static inline void bvec_set_page(struct bio_vec *bv, struct page *page,
 	bv->bv_offset = offset;
 }
 
+/**
+ * bvec_set_folio - initialize a bvec based off a struct folio
+ * @bv:		bvec to initialize
+ * @page:	folio the bvec should point to
+ * @len:	length of the bvec
+ * @offset:	offset into the folio
+ */
+static inline void bvec_set_folio(struct bio_vec *bv, struct folio *folio,
+		unsigned int len, unsigned int offset)
+{
+	bvec_set_page(bv, &folio->page, len, offset);
+}
+
 struct bvec_iter {
 	sector_t		bi_sector;	/* device address in 512 byte
 						   sectors */
-- 
2.39.0




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