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| author | KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> | 2010-08-09 17:19:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-09 20:45:03 -0700 |
| commit | bdce6d9ebf52c1f6c23163d1a33320ce7c007f73 (patch) | |
| tree | 6070de94cdece474e277d8878721421671e212eb /mm | |
| parent | cf4dcc3e9b374e1b61a7c22faf868707ce78d6a9 (diff) | |
| download | lwn-bdce6d9ebf52c1f6c23163d1a33320ce7c007f73.tar.gz lwn-bdce6d9ebf52c1f6c23163d1a33320ce7c007f73.zip | |
memcg, vmscan: add memcg reclaim tracepoint
Memcg also need to trace reclaim progress as direct reclaim. This patch
add it.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/vmscan.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 9789a2c92563..154b37a33731 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1951,6 +1951,11 @@ unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *mem, sc.nodemask = &nm; sc.nr_reclaimed = 0; sc.nr_scanned = 0; + + trace_mm_vmscan_memcg_softlimit_reclaim_begin(0, + sc.may_writepage, + sc.gfp_mask); + /* * NOTE: Although we can get the priority field, using it * here is not a good idea, since it limits the pages we can scan. @@ -1959,6 +1964,9 @@ unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *mem, * the priority and make it zero. */ shrink_zone(0, zone, &sc); + + trace_mm_vmscan_memcg_softlimit_reclaim_end(sc.nr_reclaimed); + return sc.nr_reclaimed; } @@ -1968,6 +1976,7 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem_cont, unsigned int swappiness) { struct zonelist *zonelist; + unsigned long nr_reclaimed; struct scan_control sc = { .may_writepage = !laptop_mode, .may_unmap = 1, @@ -1982,7 +1991,16 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem_cont, sc.gfp_mask = (gfp_mask & GFP_RECLAIM_MASK) | (GFP_HIGHUSER_MOVABLE & ~GFP_RECLAIM_MASK); zonelist = NODE_DATA(numa_node_id())->node_zonelists; - return do_try_to_free_pages(zonelist, &sc); + + trace_mm_vmscan_memcg_reclaim_begin(0, + sc.may_writepage, + sc.gfp_mask); + + nr_reclaimed = do_try_to_free_pages(zonelist, &sc); + + trace_mm_vmscan_memcg_reclaim_end(nr_reclaimed); + + return nr_reclaimed; } #endif |