From: Ingo Molnar <mingo@elte.hu>
To: David Singleton <dsingleton@mvista.com>
Cc: robustmutexes@lists.osdl.org, linux-kernel@vger.kernel.org
Subject: Re: Robust Futex update
Date: Fri, 14 Oct 2005 07:35:16 +0200 [thread overview]
Message-ID: <20051014053516.GA21579@elte.hu> (raw)
In-Reply-To: <434DA382.1050100@mvista.com>
* David Singleton <dsingleton@mvista.com> wrote:
> Ingo,
> here 's a patch for 2.6.14-rc4-rt1 that fixes two things:
>
> 1) Deregister futex returns -EBUSY instead of -EINVAL if a thread
> tries to deregister a pthread_mutex that another thread has locked.
>
> 2) Make the fast path robust. If a pthread_mutex is only locked in
> user space we need to clear the owner when the thread dies. This
> makes both the 'rt_mutex is locked in the kernel' and the
> 'pthread_mutex is only locked in user space' paths robust.
thanks, applied.
Ingo
next prev parent reply other threads:[~2005-10-14 5:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-13 0:00 Robust Futex update David Singleton
2005-10-14 5:35 ` Ingo Molnar [this message]
2005-10-14 5:45 ` Ingo Molnar
2005-10-14 17:40 ` Khem Raj
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