[Pmem] [PATCH 06/15] memory tiering: add file pages promotion counter

From: Huang Ying <ying.huang(a)intel.com> ANBZ: #80 cherry-picked from https://git.kernel.org/pub/scm/linux/kernel/git/vishal/tiering.git/commit/?… To distinguish the file pages promotion from the anonymous pages promotion. Signed-off-by: "Huang, Ying" <ying.huang(a)intel.com> Signed-off-by: Baolin Wang <baolin.wang(a)linux.alibaba.com> --- include/linux/mmzone.h | 1 + mm/migrate.c | 8 +++++++- mm/vmstat.c | 1 + 3 files changed, 9 insertions(+), 1 deletion(-) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 30b42ef..9c2363f 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -210,6 +210,7 @@ enum node_stat_item { PGPROMOTE_SUCCESS, /* promote successfully */ PGPROMOTE_CANDIDATE, /* candidate pages to promote */ PROMOTE_THRESHOLD, + PGPROMOTE_FILE, #endif NR_VM_NODE_STAT_ITEMS }; diff --git a/mm/migrate.c b/mm/migrate.c index 4a57837..ccb561d 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1201,7 +1201,13 @@ bool promote_file_page(struct page *page, int flags) if (flags & PFP_LOCKED) unlock_page(page); - migrate_misplaced_page(page, NULL, nid); + if (migrate_misplaced_page(page, NULL, nid)) { +#ifdef CONFIG_NUMA_BALANCING + mod_node_page_state(NODE_DATA(nid), PGPROMOTE_FILE, 1); +#else + ; +#endif + } return true; } diff --git a/mm/vmstat.c b/mm/vmstat.c index acd049b..a92a7ad 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1190,6 +1190,7 @@ int fragmentation_index(struct zone *zone, unsigned int order) "pgpromote_success", "pgpromote_candidate", "promote_threshold", + "pgpromote_file", #endif /* enum writeback_stat_item counters */ -- 1.8.3.1