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From: Dominik Brodowski <linux@dominikbrodowski.net>
To: "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc: linux-kernel@vger.kernel.org, tytso@mit.edu
Subject: Re: [PATCH] random: wake up /dev/random writers after zap
Date: Sat, 29 Jan 2022 16:08:46 +0100	[thread overview]
Message-ID: <YfVYfsDCVnKSfDSc@owl.dominikbrodowski.net> (raw)
In-Reply-To: <20220128224906.104235-1-Jason@zx2c4.com>

Am Fri, Jan 28, 2022 at 11:49:06PM +0100 schrieb Jason A. Donenfeld:
> When account() is called, and the amount of entropy dips below
> random_write_wakeup_bits, we wake up the random writers, so that they
> can write some more in. However, the RNDZAPENTCNT/RNDCLEARPOOL ioctl
> sets the entropy count to zero -- a potential reduction just like
> account() -- but does not unblock writers. This commit adds the missing
> logic to that ioctl to unblock waiting writers.
> 
> Cc: Dominik Brodowski <linux@dominikbrodowski.net>
> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net>

Thanks,
	Dominik

      reply	other threads:[~2022-01-29 15:09 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-28 22:49 Jason A. Donenfeld
2022-01-29 15:08 ` Dominik Brodowski [this message]

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