From: Herbert Xu <herbert@gondor.apana.org.au>
To: Stephan Mueller <smueller@chronox.de>
Cc: pebolle@tiscali.nl, andreas.steffen@strongswan.org,
tytso@mit.edu, sandyinchina@gmail.com,
linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v9 3/5] crypto: drbg - add async seeding operation
Date: Thu, 21 May 2015 05:44:08 +0800 [thread overview]
Message-ID: <20150520214408.GA17264@gondor.apana.org.au> (raw)
In-Reply-To: <12904468.qCSNRrkb6t@tachyon.chronox.de>
On Wed, May 20, 2015 at 10:03:45PM +0200, Stephan Mueller wrote:
>> @@ -1487,6 +1514,7 @@ unlock:
> */
> static int drbg_uninstantiate(struct drbg_state *drbg)
> {
> + cancel_work_sync(&drbg->seed_work);
This will just block until the work is done, i.e., until the
pool is ready. It's no different to an uninterruptible sleep.
So either just do an uninterruptible sleep, or allow the async
seed to fail.
Cheers,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
next prev parent reply other threads:[~2015-05-20 21:44 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-20 20:02 [PATCH v9 0/5] Seeding DRBG with more entropy Stephan Mueller
2015-05-20 20:02 ` [PATCH v9 1/5] random: Blocking API for accessing nonblocking_pool Stephan Mueller
2015-05-20 20:03 ` [PATCH v9 2/5] crypto: drbg - prepare for async seeding Stephan Mueller
2015-05-20 20:03 ` [PATCH v9 3/5] crypto: drbg - add async seeding operation Stephan Mueller
2015-05-20 21:44 ` Herbert Xu [this message]
2015-05-21 6:10 ` Stephan Mueller
2015-05-21 6:36 ` Herbert Xu
2015-05-21 6:53 ` Stephan Mueller
2015-05-21 6:56 ` Herbert Xu
2015-05-21 7:55 ` Stephan Mueller
2015-05-21 8:19 ` random: Wake up all getrandom(2) callers when pool is ready Herbert Xu
2015-05-21 8:36 ` Stephan Mueller
2015-05-21 19:17 ` Theodore Ts'o
2015-05-22 0:23 ` Herbert Xu
2015-05-20 20:04 ` [PATCH v9 4/5] crypto: drbg - use Jitter RNG to obtain seed Stephan Mueller
2015-05-20 20:04 ` [PATCH v9 5/5] crypto: add jitterentropy RNG Stephan Mueller
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