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| author | Ingo Molnar <mingo@kernel.org> | 2017-02-03 22:07:57 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-03-03 01:43:47 +0100 |
| commit | d04b0ad37e4b6ac39a56c823ae76ab37cd044dc7 (patch) | |
| tree | dbc70de4f29558e567a2efe1affa2c131cf1fb32 /include/linux/sched.h | |
| parent | c7af7877eeacfeaaf6a1b6f54c481292ef116837 (diff) | |
| download | op-kernel-dev-d04b0ad37e4b6ac39a56c823ae76ab37cd044dc7.zip op-kernel-dev-d04b0ad37e4b6ac39a56c823ae76ab37cd044dc7.tar.gz | |
sched/headers: Move the PREEMPT_COUNT defines from <linux/sched.h> to <linux/preempt.h>
These defines are not really part of the scheduler's driver API, but are
related to the preempt count - so move them to <linux/preempt.h>.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 5398356..3b3e31d 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -265,27 +265,6 @@ struct task_cputime_atomic { .sum_exec_runtime = ATOMIC64_INIT(0), \ } -#define PREEMPT_DISABLED (PREEMPT_DISABLE_OFFSET + PREEMPT_ENABLED) - -/* - * Disable preemption until the scheduler is running -- use an unconditional - * value so that it also works on !PREEMPT_COUNT kernels. - * - * Reset by start_kernel()->sched_init()->init_idle()->init_idle_preempt_count(). - */ -#define INIT_PREEMPT_COUNT PREEMPT_OFFSET - -/* - * Initial preempt_count value; reflects the preempt_count schedule invariant - * which states that during context switches: - * - * preempt_count() == 2*PREEMPT_DISABLE_OFFSET - * - * Note: PREEMPT_DISABLE_OFFSET is 0 for !PREEMPT_COUNT kernels. - * Note: See finish_task_switch(). - */ -#define FORK_PREEMPT_COUNT (2*PREEMPT_DISABLE_OFFSET + PREEMPT_ENABLED) - /** * struct thread_group_cputimer - thread group interval timer counts * @cputime_atomic: atomic thread group interval timers. |
