The patch titled Subject: mm: vmscan: check if we isolated a compound page during lumpy scan has been removed from the -mm tree. Its filename was mm-vmscan-check-if-we-isolated-a-compound-page-during-lumpy-scan.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ From: Andrea Arcangeli <aarcange@xxxxxxxxxx> Subject: mm: vmscan: check if we isolated a compound page during lumpy scan Properly take into account if we isolated a compound page during the lumpy scan in reclaim and skip over the tail pages when encountered. This corrects the values given to the tracepoint for number of lumpy pages isolated and will avoid breaking the loop early if compound pages smaller than the requested allocation size are requested. [mgorman@xxxxxxx: Updated changelog] Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx> Signed-off-by: Mel Gorman <mgorman@xxxxxxx> Reviewed-by: Minchan Kim <minchan.kim@xxxxxxxxx> Reviewed-by: Rik van Riel <riel@xxxxxxxxxx> Cc: Dave Jones <davej@xxxxxxxxxx> Cc: Jan Kara <jack@xxxxxxx> Cc: Andy Isaacson <adi@xxxxxxxxxxxxx> Cc: Nai Xia <nai.xia@xxxxxxxxx> Cc: Johannes Weiner <jweiner@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/vmscan.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff -puN mm/vmscan.c~mm-vmscan-check-if-we-isolated-a-compound-page-during-lumpy-scan mm/vmscan.c --- a/mm/vmscan.c~mm-vmscan-check-if-we-isolated-a-compound-page-during-lumpy-scan +++ a/mm/vmscan.c @@ -1196,13 +1196,17 @@ static unsigned long isolate_lru_pages(u break; if (__isolate_lru_page(cursor_page, mode, file) == 0) { + unsigned int isolated_pages; + mem_cgroup_lru_del(cursor_page); list_move(&cursor_page->lru, dst); - nr_taken += hpage_nr_pages(cursor_page); - nr_lumpy_taken++; + isolated_pages = hpage_nr_pages(cursor_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. _ Patches currently in -mm which might be from aarcange@xxxxxxxxxx are origin.patch mm-fix-null-ptr-dereference-in-__count_immobile_pages.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html