Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 5.16 30/30] block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern | Date | Tue, 22 Feb 2022 21:28:19 -0500 |
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From: Haimin Zhang <tcs.kernel@gmail.com>
[ 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> --- block/blk-map.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/blk-map.c b/block/blk-map.c index 4526adde01564..c7f71d83eff18 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; -- 2.34.1
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