From: "David Hildenbrand (Arm)" <david@kernel.org>
To: Mike Rapoport <rppt@kernel.org>, linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
Taku Izumi <izumi.taku@jp.fujitsu.com>,
Wei Yang <richard.weiyang@gmail.com>,
Yuan Liu <yuan1.liu@intel.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] mm/mm_init: drop overlap_memmap_init()
Date: Thu, 25 Jun 2026 12:43:39 +0200 [thread overview]
Message-ID: <ee0645f9-f55f-4747-a2bd-99cb757358b9@kernel.org> (raw)
In-Reply-To: <20260625073941.145014-3-rppt@kernel.org>
On 6/25/26 09:39, Mike Rapoport wrote:
> From: "Mike Rapoport (Microsoft)" <rppt@kernel.org>
>
> When ZONE_NORMAL and ZONE_MOVABLE could overlap because kernelcore=mirror
> didn't reduce the span of ZONE_NORMAL, initialization of the memory map had
> to skip overlapping pages during initialization of ZONE_MOVABLE to avoid
> double initialization of the same struct pages.
>
> Since kernelcore=mirror works now the same way as other variants of
> kernelcore=/movablecore=, and adjusts the span of ZONE_NORMAL, there can't
> be an overlap between ZONE_NORMAL and ZONE_MOVABLE.
>
> Remove overlap_memmap_init().
>
> Co-developed-by: Wei Yang <richard.weiyang@gmail.com>
> Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
> Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
> ---
Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>
--
Cheers,
David
next prev parent reply other threads:[~2026-06-25 10:43 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-25 7:39 [PATCH 0/2] mm/mm_init: don't overlap zones with kernelcore=mirror Mike Rapoport
2026-06-25 7:39 ` [PATCH 1/2] mm/mm_init: don't overlap NORMAL and MOVABLE " Mike Rapoport
2026-06-25 10:42 ` David Hildenbrand (Arm)
2026-06-25 7:39 ` [PATCH 2/2] mm/mm_init: drop overlap_memmap_init() Mike Rapoport
2026-06-25 9:58 ` Wei Yang
2026-06-26 7:40 ` Mike Rapoport
2026-06-26 9:29 ` Wei Yang
2026-06-25 10:43 ` David Hildenbrand (Arm) [this message]
2026-06-26 8:11 ` [PATCH 0/2] mm/mm_init: don't overlap zones with kernelcore=mirror Mike Rapoport
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