From 4aabdc14c4d2a01c2968bdc8919f81d9f9b4f790 Mon Sep 17 00:00:00 2001
From: Jaewon Kim <jaewon31.kim@samsung.com>
Date: Fri, 5 Nov 2021 13:45:09 -0700
Subject: zram_drv: allow reclaim on bio_alloc
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>
---
drivers/block/zram/zram_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'drivers/block/zram')
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index fcaf2750f68f..081e77d595d7 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -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;
--
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