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From: Darren Hart <dvhltc@us.ibm.com>
To: linux-kernel@vger.kernel.org
Subject: [PATCH 0/5] Futex cleanups and race fix
Date: Mon, 21 Sep 2009 22:29:52 -0700	[thread overview]
Message-ID: <20090922052452.8717.39673.stgit@Aeon> (raw)

The following series corrects several innacurate comments in the futex code as
well as reformat some of the existing comments to be mostly consistent
throughout futex.c. The final patch fixes a nasty little race in the requeue pi
code resulting in missed wakeups and hung userspace application threads.

Signed-off-by: Darren Hart <dvhltc@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>
CC: Eric Dumazet <eric.dumazet@gmail.com>
CC: Dinakar Guniguntala <dino@in.ibm.com>
CC: John Stultz <johnstul@us.ibm.com>

---

Darren Hart (5):
      futex: fix wakeup race by setting TASK_INTERRUPTIBLE before queue_me
      futex: correct futex_q woken state commentary
      futex: make function kernel-doc commentary consistent
      futex: correct queue_me and unqueue_me commentary
      futex: correct futex_wait_requeue_pi() commentary


 kernel/futex.c |  135 ++++++++++++++++++++++++++++++--------------------------
 1 files changed, 72 insertions(+), 63 deletions(-)

-- 
Darren Hart
IBM Linux Technology Center
Real-Time Linux Team

             reply	other threads:[~2009-09-22  5:29 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-22  5:29 Darren Hart [this message]
2009-09-22  5:29 ` [PATCH 1/5] futex: correct futex_wait_requeue_pi() commentary Darren Hart
2009-09-22  8:40   ` [tip:core/urgent] futex: Correct " tip-bot for Darren Hart
2009-09-22  5:30 ` [PATCH 2/5] futex: correct queue_me and unqueue_me commentary Darren Hart
2009-09-22  8:40   ` [tip:core/urgent] futex: Correct " tip-bot for Darren Hart
2009-09-22  5:30 ` [PATCH 3/5] futex: make function kernel-doc commentary consistent Darren Hart
2009-09-22  8:41   ` [tip:core/urgent] futex: Make " tip-bot for Darren Hart
2009-09-22  5:30 ` [PATCH 4/5] futex: correct futex_q woken state commentary Darren Hart
2009-09-22  8:41   ` [tip:core/urgent] futex: Correct " tip-bot for Darren Hart
2009-09-22  5:30 ` [PATCH 5/5] futex: fix wakeup race by setting TASK_INTERRUPTIBLE before queue_me Darren Hart
2009-09-22  8:38   ` Eric Dumazet
2009-09-22  9:10     ` Ingo Molnar
2009-09-22 17:21     ` Darren Hart
2009-09-22 19:26       ` Ingo Molnar
2009-09-22  8:41   ` [tip:core/urgent] futex: Fix wakeup race by setting TASK_INTERRUPTIBLE before queue_me() tip-bot for Darren Hart

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