Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2ddbf952508fb9911036c484a87f6351106b917c
Commit: 2ddbf952508fb9911036c484a87f6351106b917c
Parent: 368059a977871def0f88a92eefb6ecc1f7b6132f
Author: Hiroshi Shimamoto <[EMAIL PROTECTED]>
AuthorDate: Mon Oct 15 17:00:11 2007 +0200
Committer: Ingo Molnar <[EMAIL PROTECTED]>
CommitDate: Mon Oct 15 17:00:11 2007 +0200
sched: clean up sched_fork()
The adjusting sched_class is a missing part of the already existing "do
not leak PI boosting priority to the child" at the sched_fork(). This
patch moves the adjusting sched_class from wake_up_new_task() to
sched_fork().
this also shrinks the code a bit:
text data bss dec hex filename
40111 4018 292 44421 ad85 sched.o.before
40102 4018 292 44412 ad7c sched.o.after
Signed-off-by: Hiroshi Shimamoto <[EMAIL PROTECTED]>
Signed-off-by: Dmitry Adamushko <[EMAIL PROTECTED]>
Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
Reviewed-by: Thomas Gleixner <[EMAIL PROTECTED]>
---
kernel/sched.c | 7 ++-----
1 files changed, 2 insertions(+), 5 deletions(-)
diff --git a/kernel/sched.c b/kernel/sched.c
index 36484da..cd2b494 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1663,6 +1663,8 @@ void sched_fork(struct task_struct *p, int clone_flags)
* Make sure we do not leak PI boosting priority to the child:
*/
p->prio = current->normal_prio;
+ if (!rt_prio(p->prio))
+ p->sched_class = &fair_sched_class;
#if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
if (likely(sched_info_on()))
@@ -1698,11 +1700,6 @@ void fastcall wake_up_new_task(struct task_struct *p,
unsigned long clone_flags)
p->prio = effective_prio(p);
- if (rt_prio(p->prio))
- p->sched_class = &rt_sched_class;
- else
- p->sched_class = &fair_sched_class;
-
if (task_cpu(p) != this_cpu || !p->sched_class->task_new ||
!current->se.on_rq) {
activate_task(rq, p, 0);
-
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