The patch titled Subject: mm, oom: reduce dependency on tasklist_lock: fix has been removed from the -mm tree. Its filename was mm-oom-reduce-dependency-on-tasklist_lock-fix.patch This patch was dropped because it was folded into mm-oom-reduce-dependency-on-tasklist_lock.patch ------------------------------------------------------ From: Hugh Dickins <hughd@xxxxxxxxxx> Subject: mm, oom: reduce dependency on tasklist_lock: fix Slab poisoning gave me a General Protection Fault on the atomic_dec(&__task_cred(p)->user->processes); line of release_task() called from wait_task_zombie(), every time my dd to USB testing generated a memcg OOM. oom_kill_process() now does the put_task_struct(), mem_cgroup_out_of_memory() should not repeat it. Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx> Cc: David Rientjes <rientjes@xxxxxxxxxx> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> Acked-by: Michal Hocko <mhocko@xxxxxxx> Cc: Oleg Nesterov <oleg@xxxxxxxxxx> Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> Cc: Johannes Weiner <hannes@xxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/memcontrol.c | 1 - 1 file changed, 1 deletion(-) diff -puN mm/memcontrol.c~mm-oom-reduce-dependency-on-tasklist_lock-fix mm/memcontrol.c --- a/mm/memcontrol.c~mm-oom-reduce-dependency-on-tasklist_lock-fix +++ a/mm/memcontrol.c @@ -1523,7 +1523,6 @@ void __mem_cgroup_out_of_memory(struct m points = chosen_points * 1000 / totalpages; oom_kill_process(chosen, gfp_mask, order, points, totalpages, memcg, NULL, "Memory cgroup out of memory"); - put_task_struct(chosen); } static unsigned long mem_cgroup_reclaim(struct mem_cgroup *memcg, _ Patches currently in -mm which might be from hughd@xxxxxxxxxx are memcg-rename-mem_cgroup_stat_swapout-as-mem_cgroup_stat_swap.patch memcg-remove-mem_cgroup_charge_type_force.patch swap-allow-swap-readahead-to-be-merged.patch documentation-update-how-page-cluster-affects-swap-i-o.patch mm-fadvise-dont-return-einval-when-filesystem-cannot-implement-fadvise.patch memcg-rename-config-variables.patch mm-oom-reduce-dependency-on-tasklist_lock.patch mm-memcg-fix-compaction-migration-failing-due-to-memcg-limits.patch mm-swapfile-clean-up-unuse_pte-race-handling.patch mm-memcg-push-down-pageswapcache-check-into-uncharge-entry-functions.patch mm-memcg-only-check-for-pageswapcache-when-uncharging-anon.patch mm-memcg-move-swapin-charge-functions-above-callsites.patch mm-memcg-remove-unneeded-shmem-charge-type.patch mm-memcg-remove-needless-mm-fixup-to-init_mm-when-charging.patch mm-memcg-split-swapin-charge-function-into-private-and-public-part.patch mm-memcg-only-check-swap-cache-pages-for-repeated-charging.patch mm-memcg-only-check-anon-swapin-page-charges-for-swap-cache.patch memcg-prevent-oom-with-too-many-dirty-pages.patch memcg-further-prevent-oom-with-too-many-dirty-pages.patch tmpfs-distribute-interleave-better-across-nodes.patch mm-hugetlbfs-close-race-during-teardown-of-hugetlbfs-shared-page-tables.patch mm-hugetlbfs-close-race-during-teardown-of-hugetlbfs-shared-page-tables-fix.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