From: Huang Shijie <shijie8@gmail.com>
Date: Tue, 22 Sep 2009 00:03:41 +0000 (-0700)
Subject: mmap: save some cycles for the shared anonymous mapping
X-Git-Tag: v2.6.32-rc1~480
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f8dbf0a7a4c5d98e8b70da9f7f4f6a89f3b7a7bb;p=pandora-kernel.git

mmap: save some cycles for the shared anonymous mapping

shmem_zero_setup() does not change vm_start, pgoff or vm_flags, only some
drivers change them (such as /driver/video/bfin-t350mcqb-fb.c).

Move these codes to a more proper place to save cycles for shared
anonymous mapping.

Signed-off-by: Huang Shijie <shijie8@gmail.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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