From: Dmitry Vyukov <dvyukov@google.com>
To: Christoph Lameter <cl@linux.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Pekka Enberg <penberg@kernel.org>,
David Rientjes <rientjes@google.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Andrew Morton <akpm@linux-foundation.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Andrey Konovalov <andreyknvl@google.com>,
Alexander Potapenko <glider@google.com>
Subject: Re: Is it OK to pass non-acquired objects to kfree?
Date: Thu, 10 Sep 2015 20:11:14 +0200 [thread overview]
Message-ID: <CACT4Y+Y7hjhbhDoDC-gJaqQcaw0jACjvaaqjFeemvWPV=RjPRw@mail.gmail.com> (raw)
In-Reply-To: <alpine.DEB.2.11.1509101301010.10131@east.gentwo.org>
On Thu, Sep 10, 2015 at 8:01 PM, Christoph Lameter <cl@linux.com> wrote:
> On Thu, 10 Sep 2015, Paul E. McKenney wrote:
>
>> The reason we poked at this was to see if any of SLxB touched the
>> memory being freed. If none of them touched the memory being freed,
>> and if that was a policy, then the idiom above would be legal. However,
>> one of them does touch the memory being freed, so, yes, the above code
>> needs to be fixed.
>
> The one that touches the object has a barrier() before it touches the
> memory.
It does not change anything, right?
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next prev parent reply other threads:[~2015-09-10 18:11 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-08 7:51 Dmitry Vyukov
2015-09-08 14:13 ` Christoph Lameter
2015-09-08 14:41 ` Dmitry Vyukov
2015-09-08 15:13 ` Christoph Lameter
2015-09-08 15:23 ` Dmitry Vyukov
2015-09-08 15:33 ` Christoph Lameter
2015-09-08 15:37 ` Dmitry Vyukov
2015-09-08 17:09 ` Christoph Lameter
2015-09-08 19:24 ` Dmitry Vyukov
2015-09-09 14:02 ` Christoph Lameter
2015-09-09 14:19 ` Dmitry Vyukov
2015-09-09 14:36 ` Christoph Lameter
2015-09-09 15:30 ` Dmitry Vyukov
2015-09-09 15:44 ` Christoph Lameter
2015-09-09 16:09 ` Dmitry Vyukov
2015-09-09 17:56 ` Christoph Lameter
2015-09-09 18:44 ` Paul E. McKenney
2015-09-09 19:01 ` Christoph Lameter
2015-09-09 20:36 ` Paul E. McKenney
2015-09-09 23:23 ` Store Buffers (was Re: Is it OK to pass non-acquired objects to kfree?) Christoph Lameter
2015-09-10 0:08 ` Paul E. McKenney
2015-09-10 0:21 ` Christoph Lameter
2015-09-10 1:10 ` Paul E. McKenney
2015-09-10 1:47 ` Christoph Lameter
2015-09-10 7:38 ` Vlastimil Babka
2015-09-10 16:37 ` Christoph Lameter
2015-09-10 7:22 ` Vlastimil Babka
2015-09-10 16:36 ` Christoph Lameter
2015-09-09 23:31 ` Is it OK to pass non-acquired objects to kfree? Christoph Lameter
2015-09-10 9:55 ` Dmitry Vyukov
2015-09-10 10:42 ` Jesper Dangaard Brouer
2015-09-10 12:08 ` Dmitry Vyukov
2015-09-10 13:37 ` Eric Dumazet
2015-09-10 12:47 ` Vlastimil Babka
2015-09-10 13:17 ` Dmitry Vyukov
2015-09-10 17:13 ` Paul E. McKenney
2015-09-10 17:21 ` Paul E. McKenney
2015-09-10 17:26 ` Dmitry Vyukov
2015-09-10 17:44 ` Paul E. McKenney
2015-09-10 18:01 ` Christoph Lameter
2015-09-10 18:11 ` Dmitry Vyukov [this message]
2015-09-10 18:13 ` Christoph Lameter
2015-09-10 18:26 ` Dmitry Vyukov
2015-09-10 18:56 ` Paul E. McKenney
2015-09-10 22:00 ` Christoph Lameter
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