per-task-delay-accounting: update document and getdelays.c for memory reclaim

Update document and make getdelays.c show delay accounting for memory reclaim.

For making a distinction between "swapping in pages" and "memory reclaim"
in getdelays.c, MEM is changed to SWAP.

Signed-off-by: Keika Kobayashi <kobayashi.kk@ncos.nec.co.jp>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/Documentation/accounting/getdelays.c b/Documentation/accounting/getdelays.c
index 40121b5cca14..3f7755f3963f 100644
--- a/Documentation/accounting/getdelays.c
+++ b/Documentation/accounting/getdelays.c
@@ -196,14 +196,18 @@ void print_delayacct(struct taskstats *t)
                "      %15llu%15llu%15llu%15llu\n"
                "IO    %15s%15s\n"
                "      %15llu%15llu\n"
-               "MEM   %15s%15s\n"
+               "SWAP  %15s%15s\n"
+               "      %15llu%15llu\n"
+               "RECLAIM  %12s%15s\n"
                "      %15llu%15llu\n",
                "count", "real total", "virtual total", "delay total",
                t->cpu_count, t->cpu_run_real_total, t->cpu_run_virtual_total,
                t->cpu_delay_total,
                "count", "delay total",
                t->blkio_count, t->blkio_delay_total,
-               "count", "delay total", t->swapin_count, t->swapin_delay_total);
+               "count", "delay total", t->swapin_count, t->swapin_delay_total,
+               "count", "delay total",
+               t->freepages_count, t->freepages_delay_total);
 }
 
 void task_context_switch_counts(struct taskstats *t)