From: Oleg Nesterov <oleg@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Nicholas Mc Guire <hofrat@osadl.org>,
Ingo Molnar <mingo@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] locking: type cleanup when accessing fast_read_ctr
Date: Wed, 20 May 2015 19:42:51 +0200 [thread overview]
Message-ID: <20150520174251.GA6831@redhat.com> (raw)
In-Reply-To: <20150519111105.GB3644@twins.programming.kicks-ass.net>
On 05/19, Peter Zijlstra wrote:
>
> So the value is unsigned by purpose; that said we should never cross the
> 2G I think, so it really doesn't matter much.
Yes, thanks, this is on purpose. Actually I was asked to make it "unsigned"
during the review, but I agree it looks better than "signed int" because
of overflows.
> That said; Oleg, should I post those patches implementing percpu-rwsem
> with the stuff we did for the hotplug lock a while back? I think I
> actually have those around somewhere.
Yes, this would be nice ;)
Oleg.
prev parent reply other threads:[~2015-05-20 17:43 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-18 17:48 Nicholas Mc Guire
2015-05-19 11:11 ` Peter Zijlstra
2015-05-19 11:25 ` Nicholas Mc Guire
2015-05-20 17:44 ` Oleg Nesterov
2015-05-23 6:46 ` Nicholas Mc Guire
2015-05-23 9:23 ` Nicholas Mc Guire
2015-05-24 18:18 ` Oleg Nesterov
2015-05-25 5:46 ` Nicholas Mc Guire
2015-05-20 17:42 ` Oleg Nesterov [this message]
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