Messages in this thread | | | Date | Mon, 7 Aug 2017 08:11:02 -0700 | From | Tejun Heo <> | Subject | Re: [PATCH] mm/vmalloc: reduce half comparison during pcpu_get_vm_areas() |
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On Thu, Aug 03, 2017 at 02:38:22PM +0800, Wei Yang wrote: > In pcpu_get_vm_areas(), it checks each range is not overlapped. To make > sure it is, only (N^2)/2 comparison is necessary, while current code does > N^2 times. By starting from the next range, it achieves the goal and the > continue could be removed. > > At the mean time, other two work in this patch: > * the overlap check of two ranges could be done with one clause > * one typo in comment is fixed. > > Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Thanks.
-- tejun
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