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

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
......@@ -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,
......
......@@ -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;
}
......
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