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-rw-r--r--include/linux/vm_event_item.h4
-rw-r--r--mm/compaction.c4
-rw-r--r--mm/migrate.c6
-rw-r--r--mm/vmstat.c7
4 files changed, 13 insertions, 8 deletions
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index 3d31145..8aa7cb9 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -38,8 +38,10 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
KSWAPD_LOW_WMARK_HIT_QUICKLY, KSWAPD_HIGH_WMARK_HIT_QUICKLY,
KSWAPD_SKIP_CONGESTION_WAIT,
PAGEOUTRUN, ALLOCSTALL, PGROTATED,
+#ifdef CONFIG_MIGRATION
+ PGMIGRATE_SUCCESS, PGMIGRATE_FAIL,
+#endif
#ifdef CONFIG_COMPACTION
- COMPACTBLOCKS, COMPACTPAGES, COMPACTPAGEFAILED,
COMPACTSTALL, COMPACTFAIL, COMPACTSUCCESS,
#endif
#ifdef CONFIG_HUGETLB_PAGE
diff --git a/mm/compaction.c b/mm/compaction.c
index 9eef558..00ad883 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -994,10 +994,6 @@ static int compact_zone(struct zone *zone, struct compact_control *cc)
update_nr_listpages(cc);
nr_remaining = cc->nr_migratepages;
- count_vm_event(COMPACTBLOCKS);
- count_vm_events(COMPACTPAGES, nr_migrate - nr_remaining);
- if (nr_remaining)
- count_vm_events(COMPACTPAGEFAILED, nr_remaining);
trace_mm_compaction_migratepages(nr_migrate - nr_remaining,
nr_remaining);
diff --git a/mm/migrate.c b/mm/migrate.c
index 77ed2d7..04687f6 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -962,6 +962,7 @@ int migrate_pages(struct list_head *from,
{
int retry = 1;
int nr_failed = 0;
+ int nr_succeeded = 0;
int pass = 0;
struct page *page;
struct page *page2;
@@ -988,6 +989,7 @@ int migrate_pages(struct list_head *from,
retry++;
break;
case 0:
+ nr_succeeded++;
break;
default:
/* Permanent failure */
@@ -998,6 +1000,10 @@ int migrate_pages(struct list_head *from,
}
rc = 0;
out:
+ if (nr_succeeded)
+ count_vm_events(PGMIGRATE_SUCCESS, nr_succeeded);
+ if (nr_failed)
+ count_vm_events(PGMIGRATE_FAIL, nr_failed);
if (!swapwrite)
current->flags &= ~PF_SWAPWRITE;
diff --git a/mm/vmstat.c b/mm/vmstat.c
index c737057..89a7fd6 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -774,10 +774,11 @@ const char * const vmstat_text[] = {
"pgrotated",
+#ifdef CONFIG_MIGRATION
+ "pgmigrate_success",
+ "pgmigrate_fail",
+#endif
#ifdef CONFIG_COMPACTION
- "compact_blocks_moved",
- "compact_pages_moved",
- "compact_pagemigrate_failed",
"compact_stall",
"compact_fail",
"compact_success",
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