cifs starts an async. crypto op and waits for their completion.
Move it over to generic code doing the same.
Signed-off-by: NGilad Ben-Yossef <gilad@benyossef.com>
Acked-by: NPavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>