Messages in this thread Patch in this message | | | From | Dragos-Marian Panait <> | Subject | [PATCH 4.14 1/1] block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern | Date | Thu, 2 Jun 2022 18:01:57 +0300 |
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From: Haimin Zhang <tcs.kernel@gmail.com>
commit cc8f7fe1f5eab010191aa4570f27641876fa1267 upstream.
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> [DP: Backported to 4.14: Manually added __GFP_ZERO flag] Signed-off-by: Dragos-Marian Panait <dragos.panait@windriver.com> --- block/bio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/bio.c b/block/bio.c index 30df1b45dde8..1eaf31976702 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1657,7 +1657,7 @@ struct bio *bio_copy_kern(struct request_queue *q, void *data, unsigned int len, if (bytes > len) bytes = len; - page = alloc_page(q->bounce_gfp | gfp_mask); + page = alloc_page(q->bounce_gfp | __GFP_ZERO | gfp_mask); if (!page) goto cleanup; -- 2.36.1
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