Messages in this thread | | | Date | Wed, 30 Oct 2013 15:20:57 +0000 | From | Mel Gorman <> | Subject | Re: [PATCH] mm: get rid of unnecessary overhead of trace_mm_page_alloc_extfrag() |
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On Fri, Oct 25, 2013 at 12:42:47PM -0400, kosaki.motohiro@gmail.com wrote: > From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> > > In general, every tracepoint should be zero overhead if it is disabled. > However, trace_mm_page_alloc_extfrag() is one of exception. It evaluate > "new_type == start_migratetype" even if tracepoint is disabled. > > However, the code can be moved into tracepoint's TP_fast_assign() and > TP_fast_assign exist exactly such purpose. This patch does it. > > Cc: Mel Gorman <mgorman@suse.de> > Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Mel Gorman <mgorman@suse.de>
-- Mel Gorman SUSE Labs
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