diff options
| author | Matthew Wilcox <matthew@wil.cx> | 2007-12-06 10:55:25 -0500 |
|---|---|---|
| committer | Matthew Wilcox <willy@linux.intel.com> | 2007-12-06 17:07:29 -0500 |
| commit | 92a1f4bc7af13949d2185449307088cf98b4755d (patch) | |
| tree | db5a1a87a0170ae5dcba05228f5e3c1a78612fcf /include/linux/sched.h | |
| parent | 4a6e9e2ce822c9f597b3036887f6cf5fa3a79375 (diff) | |
| download | lwn-92a1f4bc7af13949d2185449307088cf98b4755d.tar.gz lwn-92a1f4bc7af13949d2185449307088cf98b4755d.zip | |
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 <willy@linux.intel.com>
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 16 |
1 files changed, 16 insertions, 0 deletions
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) \ |