xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

sched,tracing: Update trace_sched_pi_setprio()

Browse Source 
Pass the PI donor task, instead of a numerical priority.

Numerical priorities are not sufficient to describe state ever since
SCHED_DEADLINE.

Annotate all sched tracepoints that are currently broken; fixing them
will bork userspace. *hate*.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: juri.lelli@arm.com
Cc: bigeasy@linutronix.de
Cc: xlpang@redhat.com
Cc: mathieu.desnoyers@efficios.com
Cc: jdesfossez@efficios.com
Cc: bristot@redhat.com
Link: http://lkml.kernel.org/r/20170323150216.353599881@infradead.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Peter Zijlstra
2017-03-23 15:56:12 +01:00
committed by Thomas Gleixner
parent acd58620e4
commit b91473ff6e
2 changed files with 10 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
kernel/sched/core.c
View File

@@ -3752,7 +3752,7 @@ void rt_mutex_setprio(struct task_struct *p, struct task_struct *pi_task)
goto out_unlock;
}
trace_sched_pi_setprio(p, prio); /* broken */
trace_sched_pi_setprio(p, pi_task);
oldprio = p->prio;
if (oldprio == prio)