Commit cc8f7fe1 authored Feb 16, 2022 by Haimin Zhang Committed by Jens Axboe Feb 17, 2022

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>

parent 06582bc8

block/blk-map.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;