This patch is to provide extra check in acct_update_integrals() function.
The routine would return if 'delta' is 0 to take quick exit if nothing to
be done.
Signed-off-by: Jay Lan <jlan@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>