Kernel/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-01-10 07:10:27 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

sched/dl: Simplify pick_dl_task()

Browse Source 
1) Nobody calls pick_dl_task() with negative cpu, it's old RT leftover.

2) If p->nr_cpus_allowed is 1, than the affinity has just been changed
  in set_cpus_allowed_ptr(); we'll pick it just earlier than migration
  thread.

Signed-off-by: Kirill Tkhai <ktkhai@parallels.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1410529340.3569.27.camel@tkhai
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Kirill Tkhai 2014-09-12 17:42:20 +04:00 committed by Ingo Molnar
parent f3f1768f89
commit 1ba93d4272
1 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
kernel/sched/deadline.c
View File

@ -1121,10 +1121,8 @@ static void set_curr_task_dl(struct rq *rq)
static int pick_dl_task(struct rq *rq, struct task_struct *p, int cpu)
{
if (!task_running(rq, p) &&
(cpu < 0 || cpumask_test_cpu(cpu, &p->cpus_allowed)) &&
(p->nr_cpus_allowed > 1))
cpumask_test_cpu(cpu, tsk_cpus_allowed(p)))
return 1;
return 0;
}