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[V7,08/24] block: bio_set_pages_dirty can't see NULL bv_page in a valid bio_vec

Message ID 20180627124548.3456-9-ming.lei@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ming Lei June 27, 2018, 12:45 p.m. UTC 
From: Christoph Hellwig <hch@lst.de>

So don't bother handling it.

Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 block/bio.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
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Patch

diff --git a/block/bio.c b/block/bio.c
index 77f991688810..de6cbaedfb65 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1557,10 +1557,8 @@  void bio_set_pages_dirty(struct bio *bio)
 	int i;
 
 	bio_for_each_segment_all(bvec, bio, i) {
-		struct page *page = bvec->bv_page;
-
-		if (page && !PageCompound(page))
-			set_page_dirty_lock(page);
+		if (!PageCompound(bvec->bv_page))
+			set_page_dirty_lock(bvec->bv_page);
 	}
 }
 EXPORT_SYMBOL_GPL(bio_set_pages_dirty);