From: Rusty Russell <rusty@rustcorp.com.au>
Date: Thu, 12 Aug 2010 05:04:19 +0000 (-0600)
Subject: param: locking for kernel parameters
X-Git-Tag: v2.6.36-rc1~57^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=907b29eb41aa604477a655bff7345731da94514d;p=pandora-kernel.git

param: locking for kernel parameters

There may be cases (most obviously, sysfs-writable charp parameters) where
a module needs to prevent sysfs access to parameters.

Rather than express this in terms of a big lock, the functions are
expressed in terms of what they protect against.  This is clearer, esp.
if the implementation changes to a module-level or even param-level lock.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
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