From 92a1f4bc7af13949d2185449307088cf98b4755d Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Thu, 6 Dec 2007 10:55:25 -0500 Subject: [PATCH] Add macros to replace direct uses of TASK_ flags With the changes to support TASK_KILLABLE, ->state becomes a bitmask, and moving these tests to convenience macros will fix all the users. Signed-off-by: Matthew Wilcox --- include/linux/sched.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/include/linux/sched.h b/include/linux/sched.h index ac3d496fbd20..69233c7fe28d 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -178,6 +178,22 @@ print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq) /* in tsk->state again */ #define TASK_DEAD 64 +/* Convenience macros for the sake of wake_up */ +#define TASK_NORMAL (TASK_INTERRUPTIBLE | TASK_UNINTERRUPTIBLE) +#define TASK_ALL (TASK_NORMAL | TASK_STOPPED | TASK_TRACED) + +/* get_task_state() */ +#define TASK_REPORT (TASK_RUNNING | TASK_INTERRUPTIBLE | \ + TASK_UNINTERRUPTIBLE | TASK_STOPPED | \ + TASK_TRACED) + +#define task_is_traced(task) ((task->state & TASK_TRACED) != 0) +#define task_is_stopped(task) ((task->state & TASK_STOPPED) != 0) +#define task_is_stopped_or_traced(task) \ + ((task->state & (TASK_STOPPED | TASK_TRACED)) != 0) +#define task_contributes_to_load(task) \ + ((task->state & TASK_UNINTERRUPTIBLE) != 0) + #define __set_task_state(tsk, state_value) \ do { (tsk)->state = (state_value); } while (0) #define set_task_state(tsk, state_value) \