diff options
| author | Rik van Riel <riel@redhat.com> | 2010-08-02 20:42:00 +0200 |
|---|---|---|
| committer | Andrea Arcangeli <aarcange@redhat.com> | 2010-08-02 18:43:23 +0000 |
| commit | 5278156dba5d7d3b284f656faf1f6760b315bb54 (patch) | |
| tree | 790012e083482a5b3abb03a16b90f0d9d1bc2ead | |
| parent | 65ff11dc45394cd1558c3881a9770c5e32109259 (diff) | |
scale nr_rotated to balance memory pressureTHP-29
Make sure we scale up nr_rotated when we encounter a referenced
transparent huge page. This ensures pageout scanning balance
is not distorted when there are huge pages on the LRU.
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
| -rw-r--r-- | mm/vmscan.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 5fb7bbc40e0e..dcd519687664 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1220,7 +1220,8 @@ static unsigned long shrink_inactive_list(unsigned long max_scan, add_page_to_lru_list(zone, page, lru); if (is_active_lru(lru)) { int file = is_file_lru(lru); - reclaim_stat->recent_rotated[file]++; + int numpages = hpage_nr_pages(page); + reclaim_stat->recent_rotated[file] += numpages; } if (!pagevec_add(&pvec, page)) { spin_unlock_irq(&zone->lru_lock); @@ -1357,7 +1358,7 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone, } if (page_referenced(page, 0, sc->mem_cgroup, &vm_flags)) { - nr_rotated++; + nr_rotated += hpage_nr_pages(page); /* * Identify referenced, file-backed active pages and * give them one more trip around the active list. So |