[RFC,09/16] bvec: introduce bvec_page and bvec_set_page accessors

Commit Message

Logan Gunthorpe May 24, 2017, 9:42 p.m. UTC

Introduce two accessor functions for bv_page: bvec_page to return the
page and bvec_set_page. A follow on patch will mechanically convert all the
individual uses within the kernel.

Signed-off-by: Logan Gunthorpe <[e-mail]>
Signed-off-by: Stephen Bates <[e-mail]>
---
 include/linux/bvec.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

Patch

diff --git a/include/linux/bvec.h b/include/linux/bvec.h
index 89b65b8..b5369a0 100644
--- a/include/linux/bvec.h
+++ b/include/linux/bvec.h
@@ -43,6 +43,16 @@  struct bvec_iter {
 						   current bvec */
 };
 
+static inline struct page *bvec_page(const struct bio_vec *bvec)
+{
+	return bvec->bv_page;
+}
+
+static inline void bvec_set_page(struct bio_vec *bvec, struct page *page)
+{
+	bvec->bv_page = page;
+}
+
 /*
  * various member access, note that bio_data should of course not be used
  * on highmem page vectors