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From: Andi Kleen <andi@firstfloor.org>
To: Chris Mason <chris.mason@oracle.com>
Cc: Andi Kleen <andi@firstfloor.org>, linux-btrfs@vger.kernel.org
Subject: Re: btrfs_tree_lock & trylock
Date: Mon, 8 Sep 2008 15:54:14 +0200	[thread overview]
Message-ID: <20080908135414.GG26079@one.firstfloor.org> (raw)
In-Reply-To: <1220881666.8537.3.camel@think.oraclecorp.com>

> The idea is to try to spin for a bit to avoid scheduling away, which is
> especially important for the high levels.  Most holders of the mutex
> let it go very quickly.

Ok but that surely should be implemented in the general mutex code then
or at least in a standard adaptive mutex wrapper? 

-Andi
-- 
ak@linux.intel.com

  reply	other threads:[~2008-09-08 13:54 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-08 11:10 btrfs_tree_lock & trylock Andi Kleen
2008-09-08 13:47 ` Chris Mason
2008-09-08 13:54   ` Andi Kleen [this message]
2008-09-08 14:02     ` Chris Mason
2008-09-08 14:20       ` Andi Kleen
2008-09-08 15:07         ` Stephen Hemminger
2008-09-08 15:28           ` Chris Mason
2008-09-08 23:26             ` Steve Long
2008-09-08 15:47           ` Andi Kleen
2008-09-08 15:50             ` Stephen Hemminger
2008-09-08 15:55               ` Chris Mason
2008-09-08 16:13                 ` jim owens
2008-09-08 16:20                   ` Chris Mason
2008-09-08 16:49                     ` Stephen Hemminger
2008-09-08 17:17                       ` Christoph Hellwig
2008-09-08 17:32                         ` Ric Wheeler
2008-09-08 23:28                           ` Steve Long
2008-09-08 17:16           ` adaptive mutexes, was " Christoph Hellwig

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