From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: linuxppc-dev@lists.ozlabs.org,
Andrew Morton <akpm@linux-foundation.org>,
Hugh Dickins <hughd@google.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: mmotm threatens ppc preemption again
Date: Fri, 01 Apr 2011 07:38:38 +1100 [thread overview]
Message-ID: <1301603918.2407.70.camel@pasglop> (raw)
In-Reply-To: <4D94B810.4000107@goop.org>
On Thu, 2011-03-31 at 10:21 -0700, Jeremy Fitzhardinge wrote:
>
> No, its the same accessors for both, since the need to distinguish them
> hasn't really come up. Could you put a "if (preemptable()) return;"
> guard in your implementations?
That would be a band-aid but would probably do the trick for now
for !-rt, tho it wouldn't do the right thing for -rt...
> Otherwise I have no objections to passing the mm in (we'll probably just
> continue to ignore the arg in x86-land).
Ben.
next prev parent reply other threads:[~2011-03-31 20:39 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-20 4:11 mmotm threatens ppc preemption again Hugh Dickins
2011-03-20 23:53 ` Benjamin Herrenschmidt
2011-03-21 1:41 ` Hugh Dickins
2011-03-21 1:50 ` Benjamin Herrenschmidt
2011-03-21 2:20 ` Hugh Dickins
2011-03-21 2:22 ` Benjamin Herrenschmidt
2011-03-30 20:53 ` Andrew Morton
2011-03-30 21:07 ` Jeremy Fitzhardinge
2011-03-31 0:52 ` Benjamin Herrenschmidt
2011-03-31 17:21 ` Jeremy Fitzhardinge
2011-03-31 20:38 ` Benjamin Herrenschmidt [this message]
2011-05-18 23:29 ` Jeremy Fitzhardinge
2011-03-21 11:24 ` Jeremy Fitzhardinge
2011-03-21 22:52 ` Benjamin Herrenschmidt
2011-03-22 13:34 ` Jeremy Fitzhardinge
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