This is a note to let you know that I've just added the patch titled
dm crypt: fix GFP flags passed to skcipher_request_alloc()
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
dm-crypt-fix-gfp-flags-passed-to-skcipher_request_alloc.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 9402e959014a18b4ebf7558733076875808dd66c Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mpatocka@xxxxxxxxxx>
Date: Thu, 2 Jan 2020 08:23:32 -0500
Subject: dm crypt: fix GFP flags passed to skcipher_request_alloc()
From: Mikulas Patocka <mpatocka@xxxxxxxxxx>
commit 9402e959014a18b4ebf7558733076875808dd66c upstream.
GFP_KERNEL is not supposed to be or'd with GFP_NOFS (the result is
equivalent to GFP_KERNEL). Also, we use GFP_NOIO instead of GFP_NOFS
because we don't want any I/O being submitted in the direct reclaim
path.
Fixes: 39d13a1ac41d ("dm crypt: reuse eboiv skcipher for IV generation")
Cc: stable@xxxxxxxxxxxxxxx # v5.4+
Signed-off-by: Mikulas Patocka <mpatocka@xxxxxxxxxx>
Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/md/dm-crypt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -717,7 +717,7 @@ static int crypt_iv_eboiv_gen(struct cry
struct crypto_wait wait;
int err;
- req = skcipher_request_alloc(any_tfm(cc), GFP_KERNEL | GFP_NOFS);
+ req = skcipher_request_alloc(any_tfm(cc), GFP_NOIO);
if (!req)
return -ENOMEM;
Patches currently in stable-queue which might be from mpatocka@xxxxxxxxxx are
queue-5.4/dm-crypt-fix-gfp-flags-passed-to-skcipher_request_alloc.patch
queue-5.4/dm-writecache-fix-incorrect-flush-sequence-when-doing-ssd-mode-commit.patch
