[PATCH 3/4] block: remove BIO_PAGE_REFFED

[Christoph Hellwig <hch@lst.de>]

Now that all block direct I/O helpers use page pinning, this flag is
unused.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 block/blk.h               | 2 --
 include/linux/bio.h       | 3 +--
 include/linux/blk_types.h | 1 -
 3 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/block/blk.h b/block/blk.h
index 768852a84fefb3..608c5dcc516b55 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -445,8 +445,6 @@ static inline void bio_release_page(struct bio *bio, struct page *page)
 {
 	if (bio_flagged(bio, BIO_PAGE_PINNED))
 		unpin_user_page(page);
-	else if (bio_flagged(bio, BIO_PAGE_REFFED))
-		put_page(page);
 }
 
 struct request_queue *blk_alloc_queue(int node_id);
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 61752292896494..c4f5b5228105fe 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -492,8 +492,7 @@ void zero_fill_bio(struct bio *bio);
 
 static inline void bio_release_pages(struct bio *bio, bool mark_dirty)
 {
-	if (bio_flagged(bio, BIO_PAGE_REFFED) ||
-	    bio_flagged(bio, BIO_PAGE_PINNED))
+	if (bio_flagged(bio, BIO_PAGE_PINNED))
 		__bio_release_pages(bio, mark_dirty);
 }
 
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index deb69eeab6bd7b..752a54e3284b27 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -326,7 +326,6 @@ struct bio {
  */
 enum {
 	BIO_PAGE_PINNED,	/* Unpin pages in bio_release_pages() */
-	BIO_PAGE_REFFED,	/* put pages in bio_release_pages() */
 	BIO_CLONED,		/* doesn't own data */
 	BIO_BOUNCED,		/* bio is a bounce bio */
 	BIO_QUIET,		/* Make BIO Quiet */
-- 
2.39.2