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authorThomas Gleixner <tglx@linutronix.de>2011-07-17 18:46:52 (GMT)
committerIngo Molnar <mingo@elte.hu>2012-03-01 09:46:54 (GMT)
commit3c7d51843b03a6839e9ec7cda724e54d2319a63a (patch)
treedf8ac53451a7e519ddb0d349b24e6ba17ea18afb /include
parent1c4dd99bed5f6f70932bf8dacdd54d04a2619778 (diff)
downloadlinux-fsl-qoriq-3c7d51843b03a6839e9ec7cda724e54d2319a63a.tar.xz
sched/rt: Do not submit new work when PI-blocked
When we are PI-blocked then we want to get things done ASAP. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-vw8et3445km5b8mpihf4trae@git.kernel.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include')
-rw-r--r--include/linux/sched.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 03dd224..c628a91 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2082,12 +2082,20 @@ extern unsigned int sysctl_sched_cfs_bandwidth_slice;
extern int rt_mutex_getprio(struct task_struct *p);
extern void rt_mutex_setprio(struct task_struct *p, int prio);
extern void rt_mutex_adjust_pi(struct task_struct *p);
+static inline bool tsk_is_pi_blocked(struct task_struct *tsk)
+{
+ return tsk->pi_blocked_on != NULL;
+}
#else
static inline int rt_mutex_getprio(struct task_struct *p)
{
return p->normal_prio;
}
# define rt_mutex_adjust_pi(p) do { } while (0)
+static inline bool tsk_is_pi_blocked(struct task_struct *tsk)
+{
+ return false;
+}
#endif
extern bool yield_to(struct task_struct *p, bool preempt);