[PATCH V6 02/30] block: bio_set_pages_dirty can't see NULL bv_page in a valid bio_vec

Ming Lei
2018-06-09T12:31:12Z

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(-)

diff --git a/block/bio.c b/block/bio.c
index 3e7d117c3346..ebd3ca62e037 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1634,10 +1634,8 @@ 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);
--
2.9.5