From: David Hildenbrand <david@redhat.com>
To: Sumanth Korikkar <sumanthk@linux.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm <linux-mm@kvack.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
linux-s390 <linux-s390@vger.kernel.org>,
Gerald Schaefer <gerald.schaefer@linux.ibm.com>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>
Subject: Re: [PATCH 3/4] s390/sclp: Remove MHP_OFFLINE_INACCESSIBLE
Date: Tue, 7 Oct 2025 21:39:58 +0200 [thread overview]
Message-ID: <ba392005-8cb1-44c6-a4ca-7608423fea62@redhat.com> (raw)
In-Reply-To: <20250926131527.3260733-4-sumanthk@linux.ibm.com>
On 26.09.25 15:15, Sumanth Korikkar wrote:
> mhp_flag MHP_OFFLINE_INACCESSIBLE was used to mark memory as not
> accessible until memory hotplug online phase begins.
>
> Earlier, standby memory blocks were added upfront during boottime and
> MHP_OFFLINE_INACCESSIBLE flag avoided page_init_poison() on memmap
> during mhp addtion phase.
>
> However with dynamic runtime configuration of memory, standby memory can
> be brought to accessible state before performing add_memory(). Hence,
> remove MHP_OFFLINE_INACCESSIBLE.
>
> Acked-by: Heiko Carstens <hca@linux.ibm.com>
> Signed-off-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
> ---
Reviewed-by: David Hildenbrand <david@redhat.com>
--
Cheers
David / dhildenb
next prev parent reply other threads:[~2025-10-07 19:40 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-26 13:15 [PATCH 0/4] Support dynamic (de)configuration of memory Sumanth Korikkar
2025-09-26 13:15 ` [PATCH 1/4] s390/mm: Support removal of boot-allocated virtual memory map Sumanth Korikkar
2025-09-26 13:15 ` [PATCH 2/4] s390/sclp: Add support for dynamic (de)configuration of memory Sumanth Korikkar
2025-10-07 20:07 ` David Hildenbrand
2025-10-08 6:46 ` Sumanth Korikkar
2025-10-08 8:05 ` David Hildenbrand
2025-09-26 13:15 ` [PATCH 3/4] s390/sclp: Remove MHP_OFFLINE_INACCESSIBLE Sumanth Korikkar
2025-10-07 19:39 ` David Hildenbrand [this message]
2025-09-26 13:15 ` [PATCH 4/4] mm/memory_hotplug: Remove MEM_PREPARE_ONLINE/MEM_FINISH_OFFLINE notifiers Sumanth Korikkar
2025-10-07 14:30 ` [PATCH 0/4] Support dynamic (de)configuration of memory Sumanth Korikkar
2025-10-07 16:02 ` David Hildenbrand
2025-10-07 16:11 ` David Hildenbrand
2025-10-07 17:56 ` Sumanth Korikkar
2025-10-07 19:35 ` David Hildenbrand
2025-10-08 6:05 ` Sumanth Korikkar
2025-10-08 8:02 ` David Hildenbrand
2025-10-08 9:12 ` Heiko Carstens
2025-10-08 9:43 ` David Hildenbrand
2025-10-08 9:13 ` Sumanth Korikkar
2025-10-08 9:33 ` David Hildenbrand
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