linux-kernel - Re: [RFC v1 0/5] fs/locks: Use plain percpu spinlocks instead of lglock to protect file

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Message-ID: <87vbiwwotb.fsf@tassilo.jf.intel.com>
Date:	Fri, 20 Feb 2015 08:05:52 -0800
From:	Andi Kleen <andi@...stfloor.org>
To:	Daniel Wagner <daniel.wagner@...-carit.de>
Cc:	Jeff Layton <jlayton@...chiereds.net>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	John Kacur <jkacur@...hat.com>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	"J. Bruce Fields" <bfields@...ldses.org>
Subject: Re: [RFC v1 0/5] fs/locks: Use plain percpu spinlocks instead of lglock to protect file_lock

Daniel Wagner <daniel.wagner@...-carit.de> writes:
>
> I am looking at how to get rid of lglock. Reason being -rt is not too
> happy with that lock, especially that it uses arch_spinlock_t and

AFAIK it could just use normal spinlock. Have you tried that?

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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