From: Nathan Fontenot <nfont@linux.vnet.ibm.com>
To: Sahil Mehta <smehta@linux.vnet.ibm.com>, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v4 2/2] powerpc/pseries: Implement indexed-count hotplug memory remove
Date: Tue, 2 Aug 2016 15:20:28 -0500 [thread overview]
Message-ID: <497a8795-ad32-1f18-2e55-2be2a33668d9@linux.vnet.ibm.com> (raw)
In-Reply-To: <9576c930-a87e-1d0c-e56b-7745d0b32137@linux.vnet.ibm.com>
On 08/01/2016 12:23 PM, Sahil Mehta wrote:
> Indexed-count remove for memory hotplug guarantees that a contiguous block
> of <count> lmbs beginning at a specified <index> will be unassigned (NOT
> that <count> lmbs will be removed). Because of Qemu's per-DIMM memory
> management, the removal of a contiguous block of memory currently
> requires a series of individual calls. Indexed-count remove reduces
> this series into a single call.
>
> Signed-off-by: Sahil Mehta <smehta@linux.vnet.ibm.com>
Reviewed-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
> ---
> v2: -use u32s drc_index and count instead of u32 ic[]
> in dlpar_memory
> v3: -add logic to handle invalid drc_index input
> v4: -none
>
> arch/powerpc/platforms/pseries/hotplug-memory.c | 90 +++++++++++++++++++++++
> 1 file changed, 90 insertions(+)
next prev parent reply other threads:[~2016-08-02 20:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-01 17:19 [PATCH v4 0/2] powerpc/pseries: Implement indexed-count hotplug memory management Sahil Mehta
2016-08-01 17:21 ` [PATCH v4 1/2] powerpc/pseries: Implement indexed-count hotplug memory add Sahil Mehta
2016-08-02 20:19 ` Nathan Fontenot
2016-08-01 17:23 ` [PATCH v4 2/2] powerpc/pseries: Implement indexed-count hotplug memory remove Sahil Mehta
2016-08-02 20:20 ` Nathan Fontenot [this message]
2016-08-23 23:03 ` Michael Roth
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