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Date: Mon, 5 May 2014 18:31:22 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Tim Chen <tim.c.chen@...ux.intel.com>
Cc: mingo@...nel.org, linux-tip-commits@...r.kernel.org,
linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
peter@...leysoftware.com, jason.low2@...com, riel@...hat.com,
alex.shi@...aro.org, paulmck@...ux.vnet.ibm.com,
akpm@...ux-foundation.org, tglx@...utronix.de, walken@...gle.com,
davidlohr@...com, "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [tip:locking/core] rwsem: Add comments to explain the meaning of
the rwsem's count field
On Mon, May 05, 2014 at 09:03:28AM -0700, Tim Chen wrote:
> On Mon, 2014-05-05 at 01:46 -0700, tip-bot for Tim Chen wrote:
> > Commit-ID: 3cf2f34e1a3d4d5ff209d087925cf950e52f4805
> > Gitweb: http://git.kernel.org/tip/3cf2f34e1a3d4d5ff209d087925cf950e52f4805
> > Author: Tim Chen <tim.c.chen@...ux.intel.com>
> > AuthorDate: Fri, 2 May 2014 12:53:57 -0700
> > Committer: Ingo Molnar <mingo@...nel.org>
> > CommitDate: Sun, 4 May 2014 20:34:26 +0200
> >
>
> Ingo,
>
> Can you pick up this version of the patch instead. I've updated the
> comments to reflect all cases for which the rwsem's count is less than
> WAITING_BIAS, as Peter has pointed out.
Wouldn't a state diagram be clearer than this gobs of text?
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