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authorMichael Rubin <mrubin@google.com>2010-10-26 14:21:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-26 16:52:06 -0700
commitea941f0e2a8c02ae876cd73deb4e1557248f258c (patch)
treed2006c10cce4f134dc83f7f5aaa1d0096902cc1a /mm/vmstat.c
parentf629d1c9bd0dbc44a6c4f9a4a67d1646c42bfc6f (diff)
downloadvexpress-lsk-ea941f0e2a8c02ae876cd73deb4e1557248f258c.tar.gz
writeback: add nr_dirtied and nr_written to /proc/vmstat
To help developers and applications gain visibility into writeback behaviour adding two entries to vm_stat_items and /proc/vmstat. This will allow us to track the "written" and "dirtied" counts. # grep nr_dirtied /proc/vmstat nr_dirtied 3747 # grep nr_written /proc/vmstat nr_written 3618 Signed-off-by: Michael Rubin <mrubin@google.com> Reviewed-by: Wu Fengguang <fengguang.wu@intel.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmstat.c')
-rw-r--r--mm/vmstat.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 355a9e669aa..44e7ac0fdb6 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -745,6 +745,9 @@ static const char * const vmstat_text[] = {
"nr_isolated_anon",
"nr_isolated_file",
"nr_shmem",
+ "nr_dirtied",
+ "nr_written",
+
#ifdef CONFIG_NUMA
"numa_hit",
"numa_miss",