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Commit 3aa23851 authored by yalin wang's avatar yalin wang Committed by Linus Torvalds
Browse files

mm/vmscan.c: change trace_mm_vmscan_writepage() proto type 



Move trace_reclaim_flags() into trace function, so that we don't need
caculate these flags if the trace is disabled.

Signed-off-by: default avataryalin wang <yalin.wang2010@gmail.com>
Reviewed-by: default avatarSteven Rostedt <rostedt@goodmis.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 0b57d6ba

include/trace/events/vmscan.h

+3 −4
Original line number Diff line number Diff line
@@ -330,10 +330,9 @@ DEFINE_EVENT(mm_vmscan_lru_isolate_template, mm_vmscan_memcg_isolate, 


TRACE_EVENT(mm_vmscan_writepage,



	TP_PROTO(struct page *page,

		int reclaim_flags),

	TP_PROTO(struct page *page),



	TP_ARGS(page, reclaim_flags),

	TP_ARGS(page),



	TP_STRUCT__entry(

		__field(unsigned long, pfn)
@@ -342,7 +341,7 @@ TRACE_EVENT(mm_vmscan_writepage, 


	TP_fast_assign(

		__entry->pfn = page_to_pfn(page);

		__entry->reclaim_flags = reclaim_flags;

		__entry->reclaim_flags = trace_reclaim_flags(page);

	),



	TP_printk("page=%p pfn=%lu flags=%s",

mm/vmscan.c

+1 −1
Original line number Diff line number Diff line
@@ -594,7 +594,7 @@ static pageout_t pageout(struct page *page, struct address_space *mapping, 
			/* synchronous write or broken a_ops? */

			ClearPageReclaim(page);

		}

		trace_mm_vmscan_writepage(page, trace_reclaim_flags(page));

		trace_mm_vmscan_writepage(page);

		inc_zone_page_state(page, NR_VMSCAN_WRITE);

		return PAGE_SUCCESS;

	}