From: David Howells <dhowells@redhat.com>
Date: Sat, 16 Jan 2010 01:01:33 +0000 (-0800)
Subject: nommu: struct vm_region's vm_usage count need not be atomic
X-Git-Tag: v2.6.33-rc5~38
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1e2ae599d37e60958c03ca5e46b1f657619a30cd;p=pandora-kernel.git

nommu: struct vm_region's vm_usage count need not be atomic

The vm_usage count field in struct vm_region does not need to be atomic as
it's only even modified whilst nommu_region_sem is write locked.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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