Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8ca0e14ffb12c257de591571a9e96102acdb1c64
Commit: 8ca0e14ffb12c257de591571a9e96102acdb1c64
Parent: 810e95ccd58d91369191aa4ecc9e6d4a10d8d0c8
Author: Peter Zijlstra <[EMAIL PROTECTED]>
AuthorDate: Mon Oct 15 17:00:14 2007 +0200
Committer: Ingo Molnar <[EMAIL PROTECTED]>
CommitDate: Mon Oct 15 17:00:14 2007 +0200
sched: disable sleeper_fairness on SCHED_BATCH
disable sleeper fairness for batch tasks - they are about
batch processing after all.
Signed-off-by: Peter Zijlstra <[EMAIL PROTECTED]>
Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
---
kernel/sched_fair.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 3ecbfd0..410b77a 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -485,7 +485,9 @@ place_entity(struct cfs_rq *cfs_rq, struct sched_entity
*se, int initial)
vruntime += sched_vslice_add(cfs_rq, se);
if (!initial) {
- if (sched_feat(NEW_FAIR_SLEEPERS))
+ struct task_struct *p = container_of(se, struct task_struct,
se);
+
+ if (sched_feat(NEW_FAIR_SLEEPERS) && p->policy != SCHED_BATCH)
vruntime -= sysctl_sched_latency;
vruntime = max_t(s64, vruntime, se->vruntime);
-
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