diff options
| author | Haimin Zhang <tcs.kernel@gmail.com> | 2022-02-16 16:40:38 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-06 08:20:57 +0200 |
| commit | 4f3ea768c56e8dce55ae538f18b37420366c5c22 (patch) | |
| tree | 05ad9a9ad09c08e0e19a5d5ec78355f41007644b | |
| parent | b1709d3697ef28e5a55dd0aea29804173fd7e185 (diff) | |
block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern
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 4.19: Manually added __GFP_ZERO flag]
Signed-off-by: Dragos-Marian Panait <dragos.panait@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | block/bio.c | 2 |
1 files changed, 1 insertions, 1 deletions
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; |