memcg: add per cgroup writeback pages accounting

[karo-tx-linux.git] / include / linux / memcontrol.h

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index f952a07ce7a9d08903e1c57cc575c5655b9bdc05..60e95872da2983365300f1abb193b6e81974b5de 100644 (file)
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -42,6 +42,7 @@ enum mem_cgroup_stat_index {
        MEM_CGROUP_STAT_RSS,            /* # of pages charged as anon rss */
        MEM_CGROUP_STAT_RSS_HUGE,       /* # of pages charged as anon huge */
        MEM_CGROUP_STAT_FILE_MAPPED,    /* # of pages charged as file rss */
+       MEM_CGROUP_STAT_WRITEBACK,      /* # of pages under writeback */
        MEM_CGROUP_STAT_SWAP,           /* # of pages, swapped out */
        MEM_CGROUP_STAT_NSTATS,
 };