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zram_drv: allow reclaim on bio_alloc

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The read_from_bdev_async is not called on atomic context.  So GFP_NOIO
is available rather than GFP_ATOMIC.  If there were reclaimable pages
with GFP_NOIO, we can avoid allocation failure and page fault failure.

Link: https://lkml.kernel.org/r/20210908005241.28062-1-jaewon31.kim@samsung.com
Signed-off-by: Jaewon Kim <jaewon31.kim@samsung.com>
Reported-by: Yong-Taek Lee <ytk.lee@samsung.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jaewon Kim 2021-11-05 13:45:09 -07:00 committed by Linus Torvalds
parent d2c20e51e3
commit 4aabdc14c4
1 changed files with 1 additions and 1 deletions
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2
drivers/block/zram/zram_drv.c
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@ -587,7 +587,7 @@ static int read_from_bdev_async(struct zram *zram, struct bio_vec *bvec,
{
struct bio *bio;
bio = bio_alloc(GFP_ATOMIC, 1);
bio = bio_alloc(GFP_NOIO, 1);
if (!bio)
return -ENOMEM;