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Message-ID: <alpine.DEB.1.10.0901071846430.23456@gandalf.stny.rr.com> Date: Wed, 7 Jan 2009 18:47:12 -0500 (EST) From: Steven Rostedt <rostedt@...dmis.org> To: Linus Torvalds <torvalds@...ux-foundation.org> cc: Gregory Haskins <ghaskins@...ell.com>, Ingo Molnar <mingo@...e.hu>, Andi Kleen <andi@...stfloor.org>, Matthew Wilcox <matthew@....cx>, Peter Zijlstra <peterz@...radead.org>, paulmck@...ux.vnet.ibm.com, Chris Mason <chris.mason@...cle.com>, Andrew Morton <akpm@...ux-foundation.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, linux-fsdevel <linux-fsdevel@...r.kernel.org>, linux-btrfs <linux-btrfs@...r.kernel.org>, Thomas Gleixner <tglx@...utronix.de>, Nick Piggin <npiggin@...e.de>, Peter Morreale <pmorreale@...ell.com>, Sven Dietrich <SDietrich@...ell.com> Subject: Re: [PATCH -v5][RFC]: mutex: implement adaptive spinning On Wed, 7 Jan 2009, Steven Rostedt wrote: > > True. I need to keep looking at the code that is posted. In -rt, we force > the fast path into the slowpath as soon as another task fails to get the > lock. Without that, as you pointed out, the code can be racy. I mean we force the fast unlock path into the slow path as soon as another task fails to get the lock. -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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