linux-kernel - [PATCH 0/6 -mm] cpu-timers patches

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Message-Id: <1263990868-8119-1-git-send-email-sgruszka@redhat.com>
Date:	Wed, 20 Jan 2010 13:34:22 +0100
From:	Stanislaw Gruszka <sgruszka@...hat.com>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Ingo Molnar <mingo@...e.hu>, Oleg Nesterov <oleg@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>,
	Balbir Singh <balbir@...ibm.com>, linux-kernel@...r.kernel.org,
	Stanislaw Gruszka <sgruszka@...hat.com>
Subject: [PATCH 0/6 -mm] cpu-timers patches

Here are patches for cpu-timers I mainly wrote to not call 
thread_group_cputime() in fastpath_timer_check(), which we
discuss in this thread:

http://thread.gmane.org/gmane.linux.kernel/909349/focus=912327
  
On the way I fix some other bugs (SIGEV_NONE timer, old increase value
in timer_settime()) and do other cleanups and optimizations, patch 5
however increase time when sighand->siglock is held. 

Compared with previous send of patches as RFC, I rebased them to -mm
tree, change some changelogs and do some minor code changes.

[PATCH 1/6 -mm] cpu-timers: simplify RLIMIT_CPU handling
[PATCH 2/6 -mm] cpu-timers: cleanup arm_timer()
[PATCH 3/6 -mm] cpu-timers: return correct previous timer reload value
[PATCH 4/6 -mm] cpu-timers: change SIGEV_NONE timer implementation
[PATCH 5/6 -mm] cpu-timers: assure to not iterate over all threads in fastpath_timer_check()
[PATCH 6/6 -mm] cpu-timers: optimize run_posix_cpu_timers()

Cheers
Stanislaw

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