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From: Frank Mayhar <fmayhar@google.com>
To: Roland McGrath <roland@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: posix-cpu-timers revamp
Date: Wed, 02 Apr 2008 10:42:44 -0700	[thread overview]
Message-ID: <1207158164.11976.32.camel@bobble.smo.corp.google.com> (raw)
In-Reply-To: <20080402020707.151E126F8DC@magilla.localdomain>

On Tue, 2008-04-01 at 19:07 -0700, Roland McGrath wrote:
> The first thing to do is move the existing summation of utime, stime, and
> sum_exec_runtime in __exit_signal into an inline thread_group_cputime_exit.
> That abstracts it into the set of inlines that can vary for the different
> flavors of storage model.  For UP, it does nothing.

One quick note:  this inline isn't needed for the 2b solution (allocate
percpu storage in copy_signal CLONE_THREAD case), since if there's more
than one thread there'll always be a percpu area and if there's only one
thread the summation code won't be entered.
-- 
Frank Mayhar <fmayhar@google.com>
Google, Inc.


  parent reply	other threads:[~2008-04-02 17:43 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-9906-10286@http.bugzilla.kernel.org/>
2008-02-07  0:50 ` [Bugme-new] [Bug 9906] New: Weird hang with NPTL and SIGPROF Andrew Morton
2008-02-07  0:58   ` Frank Mayhar
2008-02-07  2:57     ` Parag Warudkar
2008-02-07 15:22       ` Alejandro Riveira Fernández
2008-02-07 15:53         ` Parag Warudkar
2008-02-07 15:56           ` Parag Warudkar
2008-02-07 15:54             ` Alejandro Riveira Fernández
2008-02-07 16:01               ` Parag Warudkar
2008-02-07 16:53                 ` Parag Warudkar
2008-02-29 19:55                   ` Frank Mayhar
2008-03-04  7:00                     ` Roland McGrath
2008-03-04 19:52                       ` Frank Mayhar
2008-03-05  4:08                         ` Roland McGrath
2008-03-06 19:04                           ` Frank Mayhar
2008-03-11  7:50                             ` posix-cpu-timers revamp Roland McGrath
2008-03-11 21:05                               ` Frank Mayhar
2008-03-11 21:35                                 ` Roland McGrath
2008-03-14  0:37                                   ` Frank Mayhar
2008-03-21  7:18                                     ` Roland McGrath
2008-03-21 17:57                                       ` Frank Mayhar
2008-03-22 21:58                                         ` Roland McGrath
2008-03-24 17:34                                           ` Frank Mayhar
2008-03-24 22:43                                             ` Frank Mayhar
2008-03-31  5:44                                             ` Roland McGrath
2008-03-31 20:24                                               ` Frank Mayhar
2008-04-02  2:07                                                 ` Roland McGrath
2008-04-02 16:34                                                   ` Frank Mayhar
2008-04-02 17:42                                                   ` Frank Mayhar [this message]
2008-04-02 19:48                                                     ` Roland McGrath
2008-04-02 20:34                                                       ` Frank Mayhar
2008-04-02 21:42                                                         ` Frank Mayhar
2008-04-04  0:53                                                           ` Frank Mayhar
2008-04-04 23:17                                                         ` Roland McGrath
2008-04-06  5:26                                                           ` Frank Mayhar
2008-04-07 20:08                                                             ` Roland McGrath
2008-04-07 21:31                                                               ` Frank Mayhar
2008-04-07 22:02                                                                 ` Roland McGrath
2008-04-08 21:27                                                               ` Frank Mayhar
2008-04-08 21:52                                                                 ` Frank Mayhar
2008-04-08 22:49                                                                 ` Roland McGrath
2008-04-09 16:29                                                                   ` Frank Mayhar
2008-04-02 18:42                                                   ` Frank Mayhar
2008-03-28  0:52                                           ` [PATCH 2.6.25-rc6] Fix itimer/many thread hang Frank Mayhar
2008-03-28 10:28                                             ` Ingo Molnar
2008-03-28 22:46                                             ` [PATCH 2.6.25-rc7 resubmit] " Frank Mayhar
2008-04-01 18:45                                               ` Andrew Morton
2008-04-01 21:46                                                 ` Frank Mayhar
2008-03-21 20:40                                       ` posix-cpu-timers revamp Frank Mayhar
2008-03-07 23:26                           ` [Bugme-new] [Bug 9906] New: Weird hang with NPTL and SIGPROF Frank Mayhar
2008-03-08  0:01                             ` Frank Mayhar
2008-02-07 17:36           ` Frank Mayhar

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