From: Jaroslav Kysela <perex@perex.cz>
Date: Thu, 7 Jan 2010 14:36:31 +0000 (+0100)
Subject: ALSA: pcm_lib - optimize wake_up() calls for PCM I/O
X-Git-Tag: v2.6.34-rc1~243^2~2^2~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1250932e48d3b698415b1f04775433cf1da688d6;p=pandora-kernel.git

ALSA: pcm_lib - optimize wake_up() calls for PCM I/O

As noted by pl bossart <bossart.nospam@gmail.com>, the PCM I/O routines
(snd_pcm_lib_write1, snd_pcm_lib_read1) should block wake_up() calls
until all samples are not processed.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
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