Messages in this thread | | | From | Frederic Weisbecker <> | Subject | [GIT PULL v2] posix cpu timers cleanups for 3.14 | Date | Mon, 9 Dec 2013 19:24:07 +0100 |
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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.
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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(-)
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