From: Eric Paris <eparis@redhat.com>
Date: Wed, 13 Oct 2010 21:50:02 +0000 (-0400)
Subject: kernel: rounddown helper function
X-Git-Tag: v2.6.37-rc1~218^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=686a0f3d71203bbfcc186900bbb8ac2cfc3d803c;p=pandora-kernel.git

kernel: rounddown helper function

The roundup() helper function will round a given value up to a multiple of
another given value.  aka  roundup(11, 7) would give 14 = 7 * 2.  This new
function does the opposite.  It will round a given number down to the
nearest multiple of the second number: rounddown(11, 7) would give 7.

I need this in some future SELinux code and can carry the macro myself, but
figured I would put it in the core kernel so others might find and use it
if need be.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
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