Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f64f61145a38f7039e4f1c0b50dcc3fbe70ec28e
Commit: f64f61145a38f7039e4f1c0b50dcc3fbe70ec28e
Parent: c65cc8705256ad7524c97564b4fe3ca9782bf6d1
Author: Ingo Molnar <[EMAIL PROTECTED]>
AuthorDate: Mon Jul 9 18:51:58 2007 +0200
Committer: Ingo Molnar <[EMAIL PROTECTED]>
CommitDate: Mon Jul 9 18:51:58 2007 +0200
sched: remove sched_exit()
remove sched_exit(): the elaborate dance of us trying to recover
timeslices given to child tasks never really worked.
CFS does not need it either.
Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
---
kernel/exit.c | 1 -
kernel/sched.c | 31 -------------------------------
2 files changed, 0 insertions(+), 32 deletions(-)
diff --git a/kernel/exit.c b/kernel/exit.c
index 5c8ecba..6c76992 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -182,7 +182,6 @@ repeat:
zap_leader = (leader->exit_signal == -1);
}
- sched_exit(p);
write_unlock_irq(&tasklist_lock);
proc_flush_task(p);
release_thread(p);
diff --git a/kernel/sched.c b/kernel/sched.c
index d662497..7090982 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1831,37 +1831,6 @@ void fastcall wake_up_new_task(struct task_struct *p,
unsigned long clone_flags)
task_rq_unlock(this_rq, &flags);
}
-/*
- * Potentially available exiting-child timeslices are
- * retrieved here - this way the parent does not get
- * penalized for creating too many threads.
- *
- * (this cannot be used to 'generate' timeslices
- * artificially, because any timeslice recovered here
- * was given away by the parent in the first place.)
- */
-void fastcall sched_exit(struct task_struct *p)
-{
- unsigned long flags;
- struct rq *rq;
-
- /*
- * If the child was a (relative-) CPU hog then decrease
- * the sleep_avg of the parent as well.
- */
- rq = task_rq_lock(p->parent, &flags);
- if (p->first_time_slice && task_cpu(p) == task_cpu(p->parent)) {
- p->parent->time_slice += p->time_slice;
- if (unlikely(p->parent->time_slice > task_timeslice(p)))
- p->parent->time_slice = task_timeslice(p);
- }
- if (p->sleep_avg < p->parent->sleep_avg)
- p->parent->sleep_avg = p->parent->sleep_avg /
- (EXIT_WEIGHT + 1) * EXIT_WEIGHT + p->sleep_avg /
- (EXIT_WEIGHT + 1);
- task_rq_unlock(rq, &flags);
-}
-
/**
* prepare_task_switch - prepare to switch tasks
* @rq: the runqueue preparing to switch
-
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