From: Roland Dreier <rdreier@cisco•com>
To: Nathan Fontenot <nfont@austin•ibm.com>
Cc: linuxppc-dev@ozlabs•org, linux-kernel@vger•kernel.org
Subject: Re: [PATCH 4/6 v5] Memory DLPAR Handling
Date: Thu, 05 Nov 2009 10:51:27 -0800 [thread overview]
Message-ID: <adapr7wbya8.fsf@roland-alpha.cisco.com> (raw)
In-Reply-To: <4AE8B02C.3060706@austin.ibm.com> (Nathan Fontenot's message of "Wed, 28 Oct 2009 15:57:16 -0500")
This isn't a review of this patch -- more a question out of curiousity
about how you actually can do memory remove in practice. Do you have
any coordination between the platform/hypervisor and the kernel to make
sure that a memory region you might want to remove later gets put into
zone_movable so that there's a chance for the kernel to vacate it? Or
do you have some other way to coordinate or at least expose which
regions of memory the kernel will have a chance at releasing?
Thanks,
Roland
next prev parent reply other threads:[~2009-11-05 18:51 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-28 20:47 [PATCH 0/6 v5] Kernel handling of Dynamic Logical Partitioning Nathan Fontenot
2009-10-28 20:53 ` [PATCH 1/6 v5] Kernel DLPAR Infrastructure Nathan Fontenot
2009-10-29 3:08 ` Benjamin Herrenschmidt
2009-10-29 3:59 ` Nathan Lynch
2009-11-02 16:27 ` Nathan Fontenot
2009-11-02 16:40 ` Grant Likely
2009-11-02 16:47 ` Nathan Fontenot
2009-11-02 16:56 ` Grant Likely
2009-10-28 20:54 ` [PATCH 2/6 v5] Move of_drconf_cell to prom.h Nathan Fontenot
2009-10-28 20:55 ` [PATCH 3/6 v5] Memory probe/release files Nathan Fontenot
2009-10-29 3:13 ` Benjamin Herrenschmidt
2009-11-02 16:14 ` Nathan Fontenot
2009-10-28 20:57 ` [PATCH 4/6 v5] Memory DLPAR Handling Nathan Fontenot
2009-11-05 18:51 ` Roland Dreier [this message]
2009-10-28 20:58 ` [PATCH 5/6 v5] CPU probe/release files Nathan Fontenot
2009-10-29 3:25 ` Benjamin Herrenschmidt
2009-12-18 14:33 ` Andreas Schwab
2009-12-18 16:24 ` Nathan Fontenot
2009-12-18 17:29 ` Andreas Schwab
2009-12-19 8:46 ` Benjamin Herrenschmidt
2009-12-19 10:11 ` Andreas Schwab
2009-12-22 2:17 ` Nathan Fontenot
2009-10-28 20:59 ` [PATCH 6/6 v5] CPU DLPAR Handling Nathan Fontenot
2009-10-29 3:26 ` Benjamin Herrenschmidt
2009-11-02 16:15 ` Nathan Fontenot
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