Subject: stomp-machine-mark-stomper-thread.patch From: Thomas Gleixner Date: Sun, 17 Jul 2011 19:53:19 +0200 Signed-off-by: Thomas Gleixner --- include/linux/sched.h | 1 + kernel/stop_machine.c | 1 + 2 files changed, 2 insertions(+) Index: linux-stable/include/linux/sched.h =================================================================== --- linux-stable.orig/include/linux/sched.h +++ linux-stable/include/linux/sched.h @@ -1836,6 +1836,7 @@ extern void thread_group_times(struct ta #define PF_FROZEN 0x00010000 /* frozen for system suspend */ #define PF_FSTRANS 0x00020000 /* inside a filesystem transaction */ #define PF_KSWAPD 0x00040000 /* I am kswapd */ +#define PF_STOMPER 0x00080000 /* I am a stomp machine thread */ #define PF_LESS_THROTTLE 0x00100000 /* Throttle me less: I clean memory */ #define PF_KTHREAD 0x00200000 /* I am a kernel thread */ #define PF_RANDOMIZE 0x00400000 /* randomize virtual address space */ Index: linux-stable/kernel/stop_machine.c =================================================================== --- linux-stable.orig/kernel/stop_machine.c +++ linux-stable/kernel/stop_machine.c @@ -327,6 +327,7 @@ static int __cpuinit cpu_stop_cpu_callba if (IS_ERR(p)) return notifier_from_errno(PTR_ERR(p)); get_task_struct(p); + p->flags |= PF_STOMPER; kthread_bind(p, cpu); sched_set_stop_task(cpu, p); stopper->thread = p;