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SubjectRe: [GIT PULL v2] posix cpu timers cleanups for 3.14

* Frederic Weisbecker <fweisbec@gmail.com> wrote:

> Ingo, Thomas,
>
> Please pull the timers/posix-timers-for-tip-v2 branch that can be found at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
> timers/posix-timers-for-tip-v2
>
> HEAD: 531f64fd6f46a3f2a3edb1b97ecc827c775932c5
>
> This is the second version of the pull request that I sent you a few weeks ago:
> http://lkml.kernel.org/r/1385221040-24731-1-git-send-email-fweisbec@gmail.com
>
> Changes in this v2:
>
> * rebase against latest tip:timers/core (there was a conflict with some dynticks
> patches)
>
> * add a cleanup suggested by Kosaki in patch 02/10: remove a useless group
> timer sample snapshot and rearm on timer rescheduling.
>
> Also the previous pull request lacked a high level overall description, so I'm
> adding one here.
>
> ---
>
> Posix cpu timers changes for 3.14:
>
> * Remove dying thread/process timers caching that were complicating the code
> for no significant win.
>
> * Remove early task reference release on dying timer sample read. Again it was
> not worth the code complication. The other timer's resources aren't released until
> timer_delete() is called anyway (or when the whole process dies).
>
> * Remove leftover arguments in reaped target cleanup
>
> * Consolidate some timer sampling code
>
> * Remove use of tasklist lock
>
> * Robustify sighand locking against exec and exit by using the safer
> lock_task_sighand() API instead of sighand raw locking.
>
> * Convert some unnecessary BUG_ON() to WARN_ON()
>
>
> Thanks,
> Frederic
> ---
>
> Frederic Weisbecker (10):
> posix-timers: Remove dead thread posix cpu timers caching
> posix-timers: Remove dead process posix cpu timers caching
> posix-timers: Cleanup reaped target handling
> posix-timers: Remove dead task special case
> posix-timers: Remove useless clock sample on timers cleanup
> posix-timers: Consolidate posix_cpu_clock_get()
> posix-timers: Use sighand lock instead of tasklist_lock for task clock sample
> posix-timers: Use sighand lock instead of tasklist_lock on timer deletion
> posix-timers: Remove remaining uses of tasklist_lock
> posix-timers: Convert abuses of BUG_ON to WARN_ON
>
>
> kernel/posix-cpu-timers.c | 312 +++++++++++++++++++---------------------------
> 1 file changed, 129 insertions(+), 183 deletions(-)

Pulled, thanks a lot Frederic!

Ingo


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