[PATCH 2/2] block: bio_set_pages_dirty can't see NULL bv_page in a valid bio_vec
From: Christoph Hellwig <hch@lst.de>
Date: 2018-07-24 12:04:13
Subsystem:
block layer, the rest · Maintainers:
Jens Axboe, Linus Torvalds
So don't bother handling it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Ming Lei <redacted> --- block/bio.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/block/bio.c b/block/bio.c
index 504b42278099..07d3ffd95989 100644
--- a/block/bio.c
+++ b/block/bio.c@@ -1636,10 +1636,8 @@ 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);
--
2.18.0