[PATCH] crypto: allow to assign gfp_t for __crypto_alloc_tfm
From: tytso@mit.edu (Theodore Ts'o)
Date: 2015-05-19 14:39:37
Also in:
linux-crypto, linux-ext4, linux-f2fs-devel, lkml
On Tue, May 19, 2015 at 10:27:55PM +0800, Herbert Xu wrote:
On Tue, May 19, 2015 at 10:14:30AM -0400, Theodore Ts'o wrote:quoted
There can be multiple reads going on in parallel, so we're currently creating tfm's as necessary. In fact one of the things that we'veA single tfm is fully-reentrant (as long as you don't change the key). So multiple reads/writes on a single file can all use one tfm with no locking at all.
Cool, we didn't realize this was the case. Excellent, this makes life much simpler for us! :-) Thanks, - Ted