From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 25 Jun 2009 12:27:58 +0000 (+0200)
Subject: futex: request only one page from get_user_pages()
X-Git-Tag: v2.6.31-rc2~86^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aa715284b4d28cabde6c25c568d769a6be712bc8;p=pandora-kernel.git

futex: request only one page from get_user_pages()

Yanmin noticed that fault_in_user_writeable() requests 4 pages instead
of one.

That's the result of blindly trusting Linus' proposal :) I even looked
up the prototype to verify the correctness: the argument in question
is confusingly enough named "len" while in reality it means number of
pages.

Pointed-out-by: Yanmin Zhang <yanmin_zhang@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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