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V4L/DVB: dvb-core: kill the big kernel lock
authorArnd Bergmann <arnd@arndb.de>
Tue, 14 Sep 2010 19:35:07 +0000 (16:35 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Thu, 21 Oct 2010 03:06:11 +0000 (01:06 -0200)
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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