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| author | Mel Gorman <mgorman@suse.de> | 2012-10-19 15:07:31 +0200 |
|---|---|---|
| committer | Mel Gorman <mgorman@suse.de> | 2012-12-11 15:28:35 +0100 |
| commit | 7b2a2d4a18fffac3c4872021529b0657896db788 (patch) | |
| tree | a0f05be191f12711a774368f6feb15bcd2eebf1a /mm/memory_hotplug.c | |
| parent | mm: compaction: Move migration fail/success stats to migrate.c (diff) | |
| download | linux-7b2a2d4a18fffac3c4872021529b0657896db788.tar.xz linux-7b2a2d4a18fffac3c4872021529b0657896db788.zip | |
mm: migrate: Add a tracepoint for migrate_pages
The pgmigrate_success and pgmigrate_fail vmstat counters tells the user
about migration activity but not the type or the reason. This patch adds
a tracepoint to identify the type of page migration and why the page is
being migrated.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Diffstat (limited to 'mm/memory_hotplug.c')
| -rw-r--r-- | mm/memory_hotplug.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index e4eeacae2b91..e598bd15c041 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -812,7 +812,8 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) * migrate_pages returns # of failed pages. */ ret = migrate_pages(&source, alloc_migrate_target, 0, - true, MIGRATE_SYNC); + true, MIGRATE_SYNC, + MR_MEMORY_HOTPLUG); if (ret) putback_lru_pages(&source); } |