6.6-stable review patch. If anyone has any objections, please let me know.

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From: Mikulas Patocka mpatocka@redhat.com

commit fe680d8c747f4e676ac835c8c7fb0f287cd98758 upstream.

GFP_NOWAIT allocation may fail anytime. It needs to be changed to GFP_NOIO. There's no need to handle an error because mempool_alloc with GFP_NOIO can't fail.

Signed-off-by: Mikulas Patocka mpatocka@redhat.com Cc: stable@vger.kernel.org Reviewed-by: Eric Biggers ebiggers@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/md/dm-verity-fec.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)

--- a/drivers/md/dm-verity-fec.c +++ b/drivers/md/dm-verity-fec.c @@ -330,11 +330,7 @@ static int fec_alloc_bufs(struct dm_veri if (fio->bufs[n]) continue;

- fio->bufs[n] = mempool_alloc(&v->fec->prealloc_pool, GFP_NOWAIT); - if (unlikely(!fio->bufs[n])) { - DMERR("failed to allocate FEC buffer"); - return -ENOMEM; - } + fio->bufs[n] = mempool_alloc(&v->fec->prealloc_pool, GFP_NOIO); }

/* try to allocate the maximum number of buffers */