tree 0a0c9ff0370fbefd4eb8fe3a44106880c1aae8cb
parent ed5e5894b234ce4793d78078c026915b853e0678
author David Howells <dhowells@redhat.com> 1263603693 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1263672940 -0800

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>