diff options
| author | Rafael Aquini <aquini@redhat.com> | 2013-02-07 12:27:14 +1100 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2013-02-14 15:25:48 +1100 |
| commit | 362b4baefd9ed8afb5a122ae3e9ad92c6b57fa5b (patch) | |
| tree | d4a96838d20f9b8f68c4613e9e563ec0adaf2359 /mm | |
| parent | bd181be2bf6dc0b4f7b370d992c0b06d113998f7 (diff) | |
mm: add vm event counters for balloon pages compaction
Introduce a new set of vm event counters to keep track of ballooned pages
compaction activity.
Signed-off-by: Rafael Aquini <aquini@redhat.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/balloon_compaction.c | 2 | ||||
| -rw-r--r-- | mm/migrate.c | 1 | ||||
| -rw-r--r-- | mm/vmstat.c | 9 |
3 files changed, 11 insertions, 1 deletions
diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c index 07dbc8ec46cf..2c8ce496804f 100644 --- a/mm/balloon_compaction.c +++ b/mm/balloon_compaction.c @@ -242,6 +242,7 @@ bool balloon_page_isolate(struct page *page) if (__is_movable_balloon_page(page) && page_count(page) == 2) { __isolate_balloon_page(page); + balloon_event_count(COMPACTBALLOONISOLATED); unlock_page(page); return true; } @@ -265,6 +266,7 @@ void balloon_page_putback(struct page *page) __putback_balloon_page(page); /* drop the extra ref count taken for page isolation */ put_page(page); + balloon_event_count(COMPACTBALLOONRETURNED); } else { WARN_ON(1); dump_page(page); diff --git a/mm/migrate.c b/mm/migrate.c index 3bbaf5d230b0..4e3dab51f8fa 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -876,6 +876,7 @@ static int unmap_and_move(new_page_t get_new_page, unsigned long private, dec_zone_page_state(page, NR_ISOLATED_ANON + page_is_file_cache(page)); balloon_page_free(page); + balloon_event_count(COMPACTBALLOONMIGRATED); return MIGRATEPAGE_SUCCESS; } out: diff --git a/mm/vmstat.c b/mm/vmstat.c index e1d8ed172c42..292b1cf785e0 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -792,7 +792,14 @@ const char * const vmstat_text[] = { "compact_stall", "compact_fail", "compact_success", -#endif + +#ifdef CONFIG_BALLOON_COMPACTION + "compact_balloon_isolated", + "compact_balloon_migrated", + "compact_balloon_returned", +#endif /* CONFIG_BALLOON_COMPACTION */ + +#endif /* CONFIG_COMPACTION */ #ifdef CONFIG_HUGETLB_PAGE "htlb_buddy_alloc_success", |