Re: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U9 HOTFIX

[Thomas Gleixner]

On Thu, 2004-10-21 at 15:27, Ingo Molnar wrote:
> i have released the -U9 Real-Time Preemption patch, which can be
> downloaded from:

tglx

diff --exclude='*~' -urN 2.6.9-rc4-mm1-RT-U9/kernel/sched.c
2.6.9-rc4-mm1-U9-E0/kernel/sched.c
--- 2.6.9-rc4-mm1-RT-U9/kernel/sched.c	2004-10-21 15:47:21.000000000
+0200
+++ 2.6.9-rc4-mm1-U9-E0/kernel/sched.c	2004-10-21 17:17:44.000000000
+0200
@@ -3185,9 +3185,9 @@
 			__set_current_state(TASK_UNINTERRUPTIBLE);
 			spin_unlock_irq(&x->wait.lock);
 			timeout = schedule_timeout(timeout);
+			spin_lock_irq(&x->wait.lock);
 			if (!timeout)
 				goto out;
-			spin_lock_irq(&x->wait.lock);
 		} while (!x->done);
 		__remove_wait_queue(&x->wait, &wait);
 	}
@@ -3250,8 +3250,10 @@
 			}
 			__set_current_state(TASK_INTERRUPTIBLE);
 			spin_unlock_irq(&x->wait.lock);
-			schedule();
-			spin_lock_irq(&x->wait.lock);
+			timeout = schedule_timeout(timeout);
+ 			spin_lock_irq(&x->wait.lock);
+			if (!timeout)
+				goto out;
 		} while (!x->done);
 		__remove_wait_queue(&x->wait, &wait);
 	}


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