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Commit cc8e970c authored by KOSAKI Motohiro's avatar KOSAKI Motohiro Committed by Linus Torvalds
Browse files

memcg: add mm_vmscan_memcg_isolate tracepoint 



Memcg also need to trace page isolation information as global reclaim.
This patch does it.

Signed-off-by: default avatarKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: default avatarKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: default avatarMel Gorman <mel@csn.ul.ie>
Acked-by: default avatarBalbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent e17613c3

include/trace/events/vmscan.h

+15 −0
Original line number Diff line number Diff line
@@ -231,6 +231,21 @@ DEFINE_EVENT(mm_vmscan_lru_isolate_template, mm_vmscan_lru_isolate, 


);



DEFINE_EVENT(mm_vmscan_lru_isolate_template, mm_vmscan_memcg_isolate,



	TP_PROTO(int order,

		unsigned long nr_requested,

		unsigned long nr_scanned,

		unsigned long nr_taken,

		unsigned long nr_lumpy_taken,

		unsigned long nr_lumpy_dirty,

		unsigned long nr_lumpy_failed,

		int isolate_mode),



	TP_ARGS(order, nr_requested, nr_scanned, nr_taken, nr_lumpy_taken, nr_lumpy_dirty, nr_lumpy_failed, isolate_mode)



);



TRACE_EVENT(mm_vmscan_writepage,



	TP_PROTO(struct page *page,

mm/memcontrol.c

+6 −0
Original line number Diff line number Diff line
@@ -51,6 +51,8 @@ 


#include <asm/uaccess.h>



#include <trace/events/vmscan.h>



struct cgroup_subsys mem_cgroup_subsys __read_mostly;

#define MEM_CGROUP_RECLAIM_RETRIES	5

struct mem_cgroup *root_mem_cgroup __read_mostly;
@@ -1007,6 +1009,10 @@ unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, 
	}



	*scanned = scan;



	trace_mm_vmscan_memcg_isolate(0, nr_to_scan, scan, nr_taken,

				      0, 0, 0, mode);



	return nr_taken;

}