Andrew please apply. Thanks Mike.
Cheers,
Con
---
On runqueue time is used to elevate priority in schedule().
In the code it currently requeues tasks even if their priority is not
elevated, which would end up placing them at the end of their runqueue
array effectively delaying them instead of improving their priority.
Bug spotted by Mike Galbraith <[email protected]>
This patch removes this requeueing.
Signed-off-by: Con Kolivas <[email protected]>
kernel/sched.c | 3 +--
1 files changed, 1 insertion(+), 2 deletions(-)
Index: linux-2.6.16-rc3-mm1/kernel/sched.c
===================================================================
--- linux-2.6.16-rc3-mm1.orig/kernel/sched.c 2006-02-15 22:29:15.000000000 +1100
+++ linux-2.6.16-rc3-mm1/kernel/sched.c 2006-02-15 22:32:20.000000000 +1100
@@ -3107,8 +3107,7 @@ go_idle:
dequeue_task(next, array);
next->prio = new_prio;
enqueue_task(next, array);
- } else
- requeue_task(next, array);
+ }
}
next->sleep_type = SLEEP_NORMAL;
switch_tasks:
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
