Subject: [merged] vfree-dont-schedule-free_work-if-llist_add-returns-false.patch removed from -mm tree To: oleg@xxxxxxxxxx,viro@xxxxxxxxxxxxxxxxxx,mm-commits@xxxxxxxxxxxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Tue, 09 Jul 2013 16:19:57 -0700 The patch titled Subject: vfree: don't schedule free_work() if llist_add() returns false has been removed from the -mm tree. Its filename was vfree-dont-schedule-free_work-if-llist_add-returns-false.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Oleg Nesterov <oleg@xxxxxxxxxx> Subject: vfree: don't schedule free_work() if llist_add() returns false vfree() only needs schedule_work(&p->wq) if p->list was empty, otherwise vfree_deferred->wq is already pending or it is running and didn't do llist_del_all() yet. Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx> Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/vmalloc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff -puN mm/vmalloc.c~vfree-dont-schedule-free_work-if-llist_add-returns-false mm/vmalloc.c --- a/mm/vmalloc.c~vfree-dont-schedule-free_work-if-llist_add-returns-false +++ a/mm/vmalloc.c @@ -1477,7 +1477,6 @@ static void __vunmap(const void *addr, i * conventions for vfree() arch-depenedent would be a really bad idea) * * NOTE: assumes that the object at *addr has a size >= sizeof(llist_node) - * */ void vfree(const void *addr) { @@ -1489,8 +1488,8 @@ void vfree(const void *addr) return; if (unlikely(in_interrupt())) { struct vfree_deferred *p = &__get_cpu_var(vfree_deferred); - llist_add((struct llist_node *)addr, &p->list); - schedule_work(&p->wq); + if (llist_add((struct llist_node *)addr, &p->list)) + schedule_work(&p->wq); } else __vunmap(addr, 1); } _ Patches currently in -mm which might be from oleg@xxxxxxxxxx are origin.patch linux-next.patch mm-mempolicy-fix-mbind_range-vma_adjust-interaction.patch include-linux-schedh-dont-use-task-pid-tgid-in-same_thread_group-has_group_leader_pid.patch lockdep-introduce-lock_acquire_exclusive-shared-helper-macros.patch lglock-update-lockdep-annotations-to-report-recursive-local-locks.patch fput-task_work_add-can-fail-if-the-caller-has-passed-exit_task_work-fix.patch fput-turn-list_head-delayed_fput_list-into-llist_head.patch llist-fix-simplify-llist_add-and-llist_add_batch.patch llist-llist_add-can-use-llist_add_batch.patch kernel-wide-fix-missing-validations-on-__get-__put-__copy_to-__copy_from_user.patch autofs4-allow-autofs-to-work-outside-the-initial-pid-namespace.patch autofs4-translate-pids-to-the-right-namespace-for-the-daemon.patch signals-eventpoll-set-saved_sigmask-at-the-start.patch move-exit_task_namespaces-outside-of-exit_notify-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