From: Robert Love <rml@tech9.net>
To: mingo@elte.hu
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] O(1) scheduler unlock_task_rq
Date: 20 Jan 2002 18:50:52 -0500 [thread overview]
Message-ID: <1011570657.850.362.camel@phantasy> (raw)
In-Reply-To: <1011569639.850.354.camel@phantasy>
In-Reply-To: <1011569639.850.354.camel@phantasy>
[-- Attachment #1: Type: text/plain, Size: 201 bytes --]
In Ingo's new O(1) scheduler, unlock_task_rq takes a pointless argument
(task_t * p).
This patch, against 2.5.3-pre2 + J2, removes the argument and fixes all
known uses of the function.
Robert Love
[-- Attachment #2: sched-fixes-2.5.3-pre2-J2.patch --]
[-- Type: text/plain, Size: 1352 bytes --]
--- linux-2.5.3-pre2-ingo-J2/kernel/sched.c Sun Jan 20 18:35:58 2002
+++ linux/kernel/sched.c Sun Jan 20 18:36:59 2002
@@ -70,11 +70,11 @@
return __rq;
}
-static inline void unlock_task_rq(runqueue_t *rq, task_t *p,
- unsigned long *flags)
+static inline void unlock_task_rq(runqueue_t *rq, unsigned long *flags)
{
spin_unlock_irqrestore(&rq->lock, *flags);
}
+
/*
* Adding/removing a task to/from a priority array:
*/
@@ -202,10 +202,10 @@
}
rq = lock_task_rq(p, &flags);
if (unlikely(rq->curr == p)) {
- unlock_task_rq(rq, p, &flags);
+ unlock_task_rq(rq, &flags);
goto repeat;
}
- unlock_task_rq(rq, p, &flags);
+ unlock_task_rq(rq, &flags);
}
/*
@@ -260,7 +260,7 @@
resched_task(rq->curr);
success = 1;
}
- unlock_task_rq(rq, p, &flags);
+ unlock_task_rq(rq, &flags);
return success;
}
@@ -639,7 +639,6 @@
spin_unlock_irq(&rq->lock);
reacquire_kernel_lock(current);
- return;
}
/*
@@ -846,7 +845,7 @@
resched_task(rq->curr);
}
out_unlock:
- unlock_task_rq(rq, p, &flags);
+ unlock_task_rq(rq, &flags);
}
#ifndef __alpha__
@@ -966,7 +965,7 @@
activate_task(p, task_rq(p));
out_unlock:
- unlock_task_rq(rq, p, &flags);
+ unlock_task_rq(rq, &flags);
out_unlock_tasklist:
read_unlock_irq(&tasklist_lock);
next parent reply other threads:[~2002-01-20 23:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1011569639.850.354.camel@phantasy>
2002-01-20 23:50 ` Robert Love [this message]
2002-01-21 11:29 ` [PATCH] O(1) scheduler unlock_task_rq Ingo Molnar
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