diff options
| author | Tejun Heo <tj@kernel.org> | 2011-06-02 11:13:59 +0200 |
|---|---|---|
| committer | Oleg Nesterov <oleg@redhat.com> | 2011-06-04 18:17:09 +0200 |
| commit | a8f072c1d624a627b67f2ace2f0c25d856ef4e54 (patch) | |
| tree | 9ba3e96aa874b08c7156a3584f27187bcdbdd9cd /include/linux/sched.h | |
| parent | 0b1007c3578569469a6fab6ae5cca918ccdc3ee1 (diff) | |
job control: rename signal->group_stop and flags to jobctl and update them
signal->group_stop currently hosts mostly group stop related flags;
however, it's gonna be used for wider purposes and the GROUP_STOP_
flag prefix becomes confusing. Rename signal->group_stop to
signal->jobctl and rename all GROUP_STOP_* flags to JOBCTL_*.
Bit position macros JOBCTL_*_BIT are defined and JOBCTL_* flags are
defined in terms of them to allow using bitops later.
While at it, reassign JOBCTL_TRAPPING to bit 22 to better accomodate
future additions.
This doesn't cause any functional change.
-v2: JOBCTL_*_BIT macros added as suggested by Linus.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 2a8621c4be1..b0dd064eb4f 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1282,7 +1282,7 @@ struct task_struct { int exit_state; int exit_code, exit_signal; int pdeath_signal; /* The signal sent when the parent dies */ - unsigned int group_stop; /* GROUP_STOP_*, siglock protected */ + unsigned int jobctl; /* JOBCTL_*, siglock protected */ /* ??? */ unsigned int personality; unsigned did_exec:1; @@ -1803,15 +1803,21 @@ extern void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t * #define used_math() tsk_used_math(current) /* - * task->group_stop flags + * task->jobctl flags */ -#define GROUP_STOP_SIGMASK 0xffff /* signr of the last group stop */ -#define GROUP_STOP_PENDING (1 << 16) /* task should stop for group stop */ -#define GROUP_STOP_CONSUME (1 << 17) /* consume group stop count */ -#define GROUP_STOP_TRAPPING (1 << 18) /* switching from STOPPED to TRACED */ -#define GROUP_STOP_DEQUEUED (1 << 19) /* stop signal dequeued */ +#define JOBCTL_STOP_SIGMASK 0xffff /* signr of the last group stop */ -extern void task_clear_group_stop_pending(struct task_struct *task); +#define JOBCTL_STOP_DEQUEUED_BIT 16 /* stop signal dequeued */ +#define JOBCTL_STOP_PENDING_BIT 17 /* task should stop for group stop */ +#define JOBCTL_STOP_CONSUME_BIT 18 /* consume group stop count */ +#define JOBCTL_TRAPPING_BIT 21 /* switching to TRACED */ + +#define JOBCTL_STOP_DEQUEUED (1 << JOBCTL_STOP_DEQUEUED_BIT) +#define JOBCTL_STOP_PENDING (1 << JOBCTL_STOP_PENDING_BIT) +#define JOBCTL_STOP_CONSUME (1 << JOBCTL_STOP_CONSUME_BIT) +#define JOBCTL_TRAPPING (1 << JOBCTL_TRAPPING_BIT) + +extern void task_clear_jobctl_stop_pending(struct task_struct *task); #ifdef CONFIG_PREEMPT_RCU |