linux-kernel - Re: [PATCH v5 3/4] drivers/base/node: Remove register_memory_blocks_under_node() function call from register_one

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Message-ID: <de532851-aee0-4841-b9d8-c4ffe3f576dc@redhat.com>
Date: Thu, 22 May 2025 14:09:51 +0200
From: David Hildenbrand <david@...hat.com>
To: Donet Tom <donettom@...ux.ibm.com>,
 Andrew Morton <akpm@...ux-foundation.org>, Mike Rapoport <rppt@...nel.org>,
 Oscar Salvador <osalvador@...e.de>, Zi Yan <ziy@...dia.com>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Ritesh Harjani <ritesh.list@...il.com>, linux-mm@...ck.org,
 linux-kernel@...r.kernel.org, "Rafael J . Wysocki" <rafael@...nel.org>,
 Danilo Krummrich <dakr@...nel.org>,
 Jonathan Cameron <Jonathan.Cameron@...wei.com>,
 Alison Schofield <alison.schofield@...el.com>,
 Yury Norov <yury.norov@...il.com>, Dave Jiang <dave.jiang@...el.com>
Subject: Re: [PATCH v5 3/4] drivers/base/node: Remove
 register_memory_blocks_under_node() function call from register_one_node

On 22.05.25 11:17, Donet Tom wrote:
> register_one_node() is now only called via cpu_up() → __try_online_node()
> during CPU hotplug operations to online a node.
> 
> At this stage, the node has not yet had any memory added. As a result,
> there are no memory blocks to walk or register, so calling
> register_memory_blocks_under_node() is unnecessary.
> 
> Therefore, the call to register_memory_blocks_under_node()
> has been removed from register_one_node().
> 
> Acked-by: Oscar Salvador <osalvador@...e.de>
> Acked-by: Mike Rapoport (Microsoft) <rppt@...nel.org>
> Signed-off-by: Donet Tom <donettom@...ux.ibm.com>
> 
> ---

Acked-by: David Hildenbrand <david@...hat.com>

-- 
Cheers,

David / dhildenb