[RFC][v3][PATCH 1/7] Factor out code to allocate pidmap page

[Amerigo Wang]

On Sat, May 30, 2009 at 04:57:14PM -0700, Sukadev Bhattiprolu wrote:
>
>From: Sukadev Bhattiprolu <sukadev at linux.vnet.ibm.com>
>Date: Mon, 4 May 2009 01:17:39 -0700
>Subject: [RFC][v3][PATCH 1/7] Factor out code to allocate pidmap page
>
>To implement support for clone_with_pids() system call we would
>need to allocate pidmap page in more than one place. Move this
>code to a new function alloc_pidmap_page().
>
>Changelog[v2]:
>	- (Matt Helsley, Dave Hansen) Have alloc_pidmap_page() return
>	  -ENOMEM on error instead of -1.
>
>Signed-off-by: Sukadev Bhattiprolu <sukadev at linux.vnet.ibm.com>
>Acked-by: Serge Hallyn <serue at us.ibm.com>
>Reviewed-by: Oren Laadan <orenl at cs.columbia.edu>

Looks good!

Reviewed-by: WANG Cong <xiyou.wangcong at gmail.com>