Messages in this thread Patch in this message | | | From | Andrea Arcangeli <> | Subject | [PATCH 3/8] mm: check if we isolated a compound page during lumpy scan | Date | Sat, 19 Nov 2011 20:54:15 +0100 |
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Properly take into account if we isolated a compound page during the lumpy scan in reclaim and break the loop if we've isolated enough.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> --- mm/vmscan.c | 9 ++++++--- 1 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c index a1893c0..3421746 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1183,13 +1183,16 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan, break; if (__isolate_lru_page(cursor_page, mode, file) == 0) { + unsigned int isolated_pages; list_move(&cursor_page->lru, dst); mem_cgroup_del_lru(cursor_page); - nr_taken += hpage_nr_pages(page); - nr_lumpy_taken++; + isolated_pages = hpage_nr_pages(page); + nr_taken += isolated_pages; + nr_lumpy_taken += isolated_pages; if (PageDirty(cursor_page)) - nr_lumpy_dirty++; + nr_lumpy_dirty += isolated_pages; scan++; + pfn += isolated_pages-1; } else { /* * Check if the page is freed already.
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