[PATCH] crypto: allow to assign gfp_t for __crypto_alloc_tfm
Theodore Ts'o
tytso at mit.edu
Tue May 19 07:39:04 PDT 2015
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:
> >
> > 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've
>
> A 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
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