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[PATCH] introduce TASK_DEAD state

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I am not sure about this patch, I am asking Ingo to take a decision.

task_struct->state == EXIT_DEAD is a very special case, to avoid a confusion
it makes sense to introduce a new state, TASK_DEAD, while EXIT_DEAD should
live only in ->exit_state as documented in sched.h.

Note that this state is not visible to user-space, get_task_state() masks off
unsuitable states.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Oleg Nesterov
2006-09-29 02:01:11 -07:00
committed by Linus Torvalds
parent 55a101f8f7
commit c394cc9fbb
4 changed files with 7 additions and 6 deletions
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1
include/linux/sched.h
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@@ -148,6 +148,7 @@ extern unsigned long weighted_cpuload(const int cpu);
#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)