Messages in this thread Patch in this message |  | | | Date | Fri, 25 Nov 2005 19:17:33 +0300 | | From | Oleg Nesterov <> | | Subject | Re: [PATCH 2/2] PF_DEAD: kill it |
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Ingo Molnar wrote: > > > Perhaps it makes sense to add new TASK_DEAD flag to use it instead of > > EXIT_DEAD, while the latter should live only in ->exit_state. > > yes, i'd suggest a followup patch to keep the two flag spaces totally > disjunct - at least for testing in -mm. This area of code (when it was
Here it is.
I am also resending these 2 cleanups with EXIT_STATE changed to TASK_STATE.
Andrew, please take these new ones unless you or Ingo have any objections.
Oleg.
--- 2.6.15-rc2/include/linux/sched.h~3_RENAME 2005-11-25 21:54:07.000000000 +0300 +++ 2.6.15-rc2/include/linux/sched.h 2005-11-25 21:56:36.000000000 +0300 @@ -127,6 +127,7 @@ extern unsigned long nr_iowait(void); #define EXIT_DEAD 32 /* in tsk->state again */ #define TASK_NONINTERACTIVE 64 +#define TASK_DEAD 128 #define __set_task_state(tsk, state_value) \ do { (tsk)->state = (state_value); } while (0) --- 2.6.15-rc2/kernel/exit.c~3_RENAME 2005-11-25 21:54:07.000000000 +0300 +++ 2.6.15-rc2/kernel/exit.c 2005-11-25 21:56:36.000000000 +0300 @@ -871,9 +871,9 @@ fastcall NORET_TYPE void do_exit(long co tsk->mempolicy = NULL; #endif - /* ->state == EXIT_DEAD causes final put_task_struct after we schedule. */ + /* ->state == TASK_DEAD causes final put_task_struct after we schedule. */ preempt_disable(); - tsk->state = EXIT_DEAD; + tsk->state = TASK_DEAD; schedule(); BUG(); --- 2.6.15-rc2/kernel/sched.c~3_RENAME 2005-11-25 21:54:07.000000000 +0300 +++ 2.6.15-rc2/kernel/sched.c 2005-11-25 21:56:36.000000000 +0300 @@ -1630,7 +1630,7 @@ static inline void finish_task_switch(ru * be dropped twice. * Manfred Spraul <manfred@colorfullife.com> */ - task_dead = (prev->state == EXIT_DEAD); + task_dead = (prev->state == TASK_DEAD); finish_arch_switch(prev); finish_lock_switch(rq, prev); if (mm) @@ -4711,7 +4711,7 @@ static void migrate_dead(unsigned int de BUG_ON(tsk->exit_state != EXIT_ZOMBIE && tsk->exit_state != EXIT_DEAD); /* Cannot have done final schedule yet: would have vanished. */ - BUG_ON(tsk->state == EXIT_DEAD); + BUG_ON(tsk->state == TASK_DEAD); get_task_struct(tsk); --- 2.6.15-rc2/mm/oom_kill.c~3_RENAME 2005-11-25 21:54:07.000000000 +0300 +++ 2.6.15-rc2/mm/oom_kill.c 2005-11-25 21:56:36.000000000 +0300 @@ -163,7 +163,7 @@ static struct task_struct * select_bad_p */ releasing = test_tsk_thread_flag(p, TIF_MEMDIE) || p->flags & PF_EXITING; - if (releasing && (p->state != EXIT_DEAD)) + if (releasing && (p->state != TASK_DEAD)) return ERR_PTR(-1UL); if (p->flags & PF_SWAPOFF) return p; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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