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dm crypt: fix GFP flags passed to skcipher_request_alloc() 

commit 9402e95901 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: 39d13a1ac4 ("dm crypt: reuse eboiv skcipher for IV generation")
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Mikulas Patocka 2020-01-02 08:23:32 -05:00 committed by Greg Kroah-Hartman
parent 1781fa54a4
commit b805ec7d08
1 changed files with 1 additions and 1 deletions
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2
drivers/md/dm-crypt.c
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@ -717,7 +717,7 @@ static int crypt_iv_eboiv_gen(struct crypt_config *cc, u8 *iv,
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;