From: Robin Getz <rgetz@blackfin.uclinux.org>
Date: Tue, 2 Jun 2009 07:00:47 +0000 (-0400)
Subject: debugfs: use specified mode to possibly mark files read/write only
X-Git-Tag: v2.6.31-rc1~305^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e4792aa30f9d33584d7192685ed149cc5fee737f;p=pandora-kernel.git

debugfs: use specified mode to possibly mark files read/write only

In many SoC implementations there are hardware registers can be read or
write only.  This extends the debugfs to enforce the file permissions for
these types of registers by providing a set of fops which are read or
write only.  This assumes that the kernel developer knows more about the
hardware than the user (even root users) -- which is normally true.

Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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