Re: BFS 420: fix clear_sticky when breaking sole affinity

Re: BFS 420: fix clear_sticky when breaking sole affinity

[Hillf Danton]

The sticky bit is cleared after checking the task with the bit set for
given CPU.

--- a/kernel/sched/bfs.c	Mon May 14 20:50:38 2012
+++ b/kernel/sched/bfs.c	Wed May 23 20:16:18 2012
@@ -5153,7 +5153,8 @@ static void break_sole_affinity(int src_
 				       task_pid_nr(p), p->comm, src_cpu);
 			}
 		}
-		clear_sticky(p);
+		if (task_sticky(p) && task_cpu(p) == src_cpu)
+			clear_sticky(p);
 	} while_each_thread(t, p);
 }

--

Re: [patch] BFS 420: fix clear_sticky when breaking sole affinity

[Hillf Danton]

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On Wed, May 23, 2012 at 8:55 PM, Hillf Danton <dhillf@gmail.com> wrote:
> The sticky bit is cleared after checking the task with the bit set for
> given CPU.
>
> --- a/kernel/sched/bfs.c        Mon May 14 20:50:38 2012
> +++ b/kernel/sched/bfs.c        Wed May 23 20:16:18 2012
> @@ -5153,7 +5153,8 @@ static void break_sole_affinity(int src_
>                                       task_pid_nr(p), p->comm, src_cpu);
>                        }
>                }
> -               clear_sticky(p);
> +               if (task_sticky(p) && task_cpu(p) == src_cpu)
> +                       clear_sticky(p);
>        } while_each_thread(t, p);
>  }
>
> --
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