linux-kernel - Re: performance delta after VFS i_mutex=>i

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Message-ID: <CA+55aFxyqPGXsv2-xjaBLhwcdO0JmexAEy+9ZAW5c4H1v-3B-A@mail.gmail.com>
Date:	Mon, 6 Jun 2016 17:29:24 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Al Viro <viro@...iv.linux.org.uk>
Cc:	Dave Hansen <dave.hansen@...el.com>,
	"Chen, Tim C" <tim.c.chen@...el.com>,
	Ingo Molnar <mingo@...hat.com>,
	Davidlohr Bueso <dbueso@...e.de>,
	"Peter Zijlstra (Intel)" <peterz@...radead.org>,
	Jason Low <jason.low2@...com>,
	Michel Lespinasse <walken@...gle.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Waiman Long <waiman.long@...com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: performance delta after VFS i_mutex=>i_rwsem conversion

On Mon, Jun 6, 2016 at 4:59 PM, Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
>
> So the patch I sent out was indeed a terminal brainfart, but with that
> fix to change that return to a "break" it *might* work.

It seems to at least survive some trivial testing with that fixed..

              Linus