commit aa715284b4d28cabde6c25c568d769a6be712bc8
author Thomas Gleixner <tglx@linutronix.de> Thu Jun 25 14:27:58 2009 +0200
committer Thomas Gleixner <tglx@linutronix.de> Thu Jun 25 14:33:46 2009 +0200
tree c308ab1cdf8d0d7b6b1a01a1a233183670d62f9f
parent 28d0325ce6e0a52f53d8af687e6427fee59004d3

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>