From: Nathan Fontenot <nfont@linux.vnet.ibm.com>
To: Michael Ellerman <michael@ellerman.id.au>
Cc: linux-mm <linux-mm@kvack.org>,
isimatu.yasuaki@jp.fujitsu.com, linuxppc-dev@lists.ozlabs.org,
LKML <linux-kernel@vger.kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: [PATCH 2/8] Mark powerpc memory resources as busy
Date: Fri, 02 Aug 2013 14:05:57 -0500 [thread overview]
Message-ID: <51FC0315.1010601@linux.vnet.ibm.com> (raw)
In-Reply-To: <20130802022827.GB1680@concordia>
On 08/01/2013 09:28 PM, Michael Ellerman wrote:
> On Wed, Jul 24, 2013 at 01:36:34PM -0500, Nathan Fontenot wrote:
>> Memory I/O resources need to be marked as busy or else we cannot remove
>> them when doing memory hot remove.
>
> I would have thought it was the opposite?
Me too.
As it turns out the code in kernel/resource.c checks to make sure the
IORESOURCE_BUSY flag is set when trying to release a resource.
-Nathan
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next prev parent reply other threads:[~2013-08-02 19:06 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-24 18:33 [PATCH 0/8] Correct memory hot add/remove for powerpc Nathan Fontenot
2013-07-24 18:35 ` [PATCH 1/8] register bootmem pages for powerpc when sparse vmemmap is not defined Nathan Fontenot
2013-08-02 2:27 ` Michael Ellerman
2013-08-02 19:04 ` Nathan Fontenot
2013-07-24 18:36 ` [PATCH 2/8] Mark powerpc memory resources as busy Nathan Fontenot
2013-08-02 2:28 ` Michael Ellerman
2013-08-02 19:05 ` Nathan Fontenot [this message]
2013-08-05 3:11 ` Michael Ellerman
2013-07-24 18:37 ` [PATCH 3/8] Add all memory via sysfs probe interface at once Nathan Fontenot
2013-08-02 2:32 ` Michael Ellerman
2013-08-02 19:13 ` Nathan Fontenot
2013-08-05 3:13 ` Michael Ellerman
2013-08-06 20:44 ` Nathan Fontenot
2013-08-09 7:16 ` Benjamin Herrenschmidt
2013-07-24 18:39 ` [PATCH 4/8] Create a sysfs release file for hot removing memory Nathan Fontenot
2013-07-24 18:41 ` [PATCH 5/8] Add notifiers for memory hot add/remove Nathan Fontenot
2013-07-24 18:44 ` [PATCH 6/8] Update the powerpc arch specific memory add/remove handlers Nathan Fontenot
2013-07-24 18:45 ` [PATCH 7/8] Add memory hot add/remove notifier handlers for pwoerpc Nathan Fontenot
2013-07-24 18:47 ` [PATCH 8/8] Remove no longer needed powerpc memory node update handler Nathan Fontenot
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