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authorHaimin Zhang2022-02-16 16:40:38 +0800
committerJens Axboe2022-02-17 07:54:03 -0700
commitcc8f7fe1f5eab010191aa4570f27641876fa1267 (patch)
treede43dc8b2628882dc69818ea72fa7b968df15842
parent06582bc86d7f48d35cd044098ca1e246e8c7c52e (diff)
block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern
Add __GFP_ZERO flag for alloc_page in function bio_copy_kern to initialize the buffer of a bio. Signed-off-by: Haimin Zhang <tcs.kernel@gmail.com> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20220216084038.15635-1-tcs.kernel@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--block/blk-map.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-map.c b/block/blk-map.c
index 4526adde0156..c7f71d83eff1 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -446,7 +446,7 @@ static struct bio *bio_copy_kern(struct request_queue *q, void *data,
if (bytes > len)
bytes = len;
- page = alloc_page(GFP_NOIO | gfp_mask);
+ page = alloc_page(GFP_NOIO | __GFP_ZERO | gfp_mask);
if (!page)
goto cleanup;