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SubjectRe: [PATCH v2 0/6] sched: misc rt fixes for tip/sched/devel (was: Series short description)
Gregory Haskins wrote:
> Hi Ingo,
>
> The following repositories
>
> git://git.kernel.org/pub/scm/linux/kernel/git/ghaskins/linux-2.6-hacks.git tip/sched/devel/rtbalance
>
> ftp://ftp.novell.com/dev/ghaskins/tip-rt-fixes.tar.bz2
>
> apply to tip/sched/devel to pick up fixes for the RT scheduler.
>

[ It would help if I remembered to rename the default subject ;) ]

I just wanted to add that these are not urgent fixes. .28 at the
earliest. Thanks

-Greg

> [
> Changelog:
>
> v2:
> *) predicated newidle and double_lock changes on
> CONFIG_PREEMPT to address a concern by Nick Piggin
>
> *) fixed a build issue when DEBUG_PI_LIST is defined
>
> v1:
> *) initial release
> ]
>
> These patches were developed in the interest of shorting latencies in
> PREEMPT_RT, but they apply to the mainline scheduler as well, so I am
> offering them here first.
>
> This has been tested under both 26.3-rt3 and tip/sched/devel on x86_64 for
> both CONFIG_SMP and !CONFIG_SMP.
>
> Comments/bug-fixes welcome!
>
> Regards,
> -Greg
>
>
> ---
>
> Gregory Haskins (6):
> sched: create "pushable_tasks" list to limit pushing to one attempt
> plist: fix PLIST_NODE_INIT to work with debug enabled
> sched: add sched_class->needs_post_schedule() member
> sched: make double-lock-balance fair
> sched: pull only one task during NEWIDLE balancing to limit critical section
> sched: only try to push a task on wakeup if it is migratable
>
>
> include/linux/init_task.h | 1
> include/linux/plist.h | 9 ++-
> include/linux/sched.h | 2 +
> kernel/sched.c | 84 ++++++++++++++++++++++++---
> kernel/sched_rt.c | 139 ++++++++++++++++++++++++++++++++++++++-------
> 5 files changed, 202 insertions(+), 33 deletions(-)
>
>
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