Thread (8 messages) 8 messages, 3 authors, 2017-08-03

Re: [PATCH v2 0/3] crypto: scompress - defer allocation of percpu scratch buffers

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From: Herbert Xu <herbert@gondor.apana.org.au>
Date: 2017-08-03 06:24:48

On Fri, Jul 21, 2017 at 04:42:35PM +0100, Ard Biesheuvel wrote:
This is a followup to 'crypto: scompress - eliminate percpu scratch buffers',
which attempted to replace the scompress per-CPU buffer entirely, but as
Herbert pointed out, this is not going to fly in the targeted use cases.

Instead, move the alloc/free of the buffers into the tfm init/exit hooks,
so that we only have the per-CPU buffers allocated if their are any
acomp ciphers of the right kind (i.e, ones that encapsulate a synchronous
implementation) in use (#3)

Patches #1 and #2 are fixes for issues I spotted when working on this code.

Ard Biesheuvel (3):
  crypto: scompress - don't sleep with preemption disabled
  crypto: scompress - free partially allocated scratch buffers on
    failure
  crypto: scompress - defer allocation of scratch buffer to first use
All patches applied.  Thanks.
-- 
Email: Herbert Xu [off-list ref]
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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