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authorOleg Nesterov <oleg@tv-sign.ru>2005-09-29 19:58:53 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-29 09:05:52 -0700
commitaa55a08687059aa169d10a313c41f238c2070488 (patch)
tree9eaad6fc01e385778142b451a22bef99af9ecc68
parentb20fd6508c565df04a6b5816f17e03b04d4f924d (diff)
[PATCH] fix TASK_STOPPED vs TASK_NONINTERACTIVE interaction
do_signal_stop: for_each_thread(t) { if (t->state < TASK_STOPPED) ++sig->group_stop_count; } However, TASK_NONINTERACTIVE > TASK_STOPPED, so this loop will not count TASK_INTERRUPTIBLE | TASK_NONINTERACTIVE threads. See also wait_task_stopped(), which checks ->state > TASK_STOPPED. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> [ We really probably should always use the appropriate bitmasks to test task states, not do it like this. Using something like #define TASK_RUNNABLE (TASK_RUNNING | TASK_INTERRUPTIBLE | \ TASK_UNINTERRUPTIBLE | TASK_NONINTERACTIVE) and then doing "if (task->state & TASK_RUNNABLE)" or similar. But the ordering of the task states is historical, and keeping the ordering does make sense regardless. ] Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--include/linux/sched.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 49e617fa0f6..afe6c61f13e 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -110,11 +110,11 @@ extern unsigned long nr_iowait(void);
#define TASK_RUNNING 0
#define TASK_INTERRUPTIBLE 1
#define TASK_UNINTERRUPTIBLE 2
-#define TASK_STOPPED 4
-#define TASK_TRACED 8
-#define EXIT_ZOMBIE 16
-#define EXIT_DEAD 32
-#define TASK_NONINTERACTIVE 64
+#define TASK_NONINTERACTIVE 4
+#define TASK_STOPPED 8
+#define TASK_TRACED 16
+#define EXIT_ZOMBIE 32
+#define EXIT_DEAD 64
#define __set_task_state(tsk, state_value) \
do { (tsk)->state = (state_value); } while (0)