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authorHaimin Zhang <tcs.kernel@gmail.com>2022-02-16 16:40:38 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-03-08 19:14:03 +0100
commitf8c61361a4f52c2a186269982587facc852dba62 (patch)
tree9ed36ace92b93fab8bf9f8af61184dcd88680592 /block
parent10c20c53556d5e021caaf7b2892e211c40921748 (diff)
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block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern
[ Upstream commit cc8f7fe1f5eab010191aa4570f27641876fa1267 ] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'block')
-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;