The patch titled memcg: fix off-by-one when calculating swap cgroup map length has been removed from the -mm tree. Its filename was memcg-fix-off-by-one-when-calculating-swap-cgroup-map-length.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/ ------------------------------------------------------ Subject: memcg: fix off-by-one when calculating swap cgroup map length From: Namhyung Kim <namhyung@xxxxxxxxx> It allocated one more page than necessary if @max_pages was a multiple of SC_PER_PAGE. Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxx> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> Acked-by: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx> Cc: Daisuke Nishimura <nishimura@xxxxxxxxxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/page_cgroup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN mm/page_cgroup.c~memcg-fix-off-by-one-when-calculating-swap-cgroup-map-length mm/page_cgroup.c --- a/mm/page_cgroup.c~memcg-fix-off-by-one-when-calculating-swap-cgroup-map-length +++ a/mm/page_cgroup.c @@ -475,7 +475,7 @@ int swap_cgroup_swapon(int type, unsigne if (!do_swap_account) return 0; - length = ((max_pages/SC_PER_PAGE) + 1); + length = DIV_ROUND_UP(max_pages, SC_PER_PAGE); array_size = length * sizeof(void *); array = vmalloc(array_size); _ Patches currently in -mm which might be from namhyung@xxxxxxxxx are origin.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