From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 14 Sep 2010 19:35:07 +0000 (-0300)
Subject: V4L/DVB: dvb-core: kill the big kernel lock
X-Git-Tag: v2.6.37-rc1~64^2~359
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e4e62b35b8cf008f47ffd240d04bde654d289a46;p=pandora-kernel.git

V4L/DVB: dvb-core: kill the big kernel lock

The dvb core only uses the big kernel lock in the open
and ioctl functions, which means it can be replaced with
a dvb specific mutex. Fortunately, all the ioctl functions
go through dvb_usercopy, so we can move the serialization
in there.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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