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b=ddEaqhLhDpDSoBo7I/HnGD6o5TYNSCCk1vbkXYkLf2/bYgvnrydMc+ZR6x61gKESK UGKv/IbSNvNPBR1vOqX+r9JgWXrjvDTCFcOrJvX6CibAfDXYyk6MiteN00P/s7B3u+ 4zD3d4ENXshV5oFAYsQ0wtE3JwGN5yRx90fDESoEzj0+9cqfqRYDfdP6RS+BNKREuT If8/BphX6k0RBR5SE1XpB9ELckQp2CWM3mcQAwcOTD/Cv/a+7A17/8AghwaLxNVQ0B eUvYhxRKtRV4PGfHxJCp8USPFFWEE1cSPHIbDRVKPWKtzqf+hzV40iuv2VjMTh+sI1 CPFp1z3iL/qqw== Date: Fri, 18 Sep 2026 10:00:44 +0300 From: Mike Rapoport To: Wandun Chen Cc: catalin.marinas@arm.com, will@kernel.org, chenhuacai@kernel.org, pjw@kernel.org, palmer@dabbelt.com, aou@eecs.berkeley.edu, tglx@kernel.org, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, robh@kernel.org, saravanak@kernel.org, akpm@linux-foundation.org, baoquan.he@linux.dev, pasha.tatashin@soleen.com, pratyush@kernel.org, m.szyprowski@samsung.com, mark.rutland@arm.com, kernel@xen0n.name, alex@ghiti.fr, hpa@zytor.com, ruirui.yang@linux.dev, robin.murphy@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, kexec@lists.infradead.org, linux-mm@kvack.org, iommu@lists.linux.dev Subject: Re: [PATCH v6 06/10] memblock: introduce MEMBLOCK_NODUMP flag Message-ID: References: <20260902073116.802752-1-chenwandun1@gmail.com> <20260902073116.802752-7-chenwandun1@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260902073116.802752-7-chenwandun1@gmail.com> X-Rspam-User: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 68CA2C000B X-Stat-Signature: ri1if8qmem3yjq4gdgpqgeshec17eepd X-HE-Tag: 1789714856-75686 X-HE-Meta: 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 og37meJK dIEXHNwC2IYzOrUnHh0VUY4ZWG1hqJ6VRefBvPB2xFw942shGLZgurzgTlOup4iybKGmGg/f+HPZcVKnkzetW0X58oDMB/sdlfYz2TgUmWj2kSuDAHXBNx5lmLsmjyQg6aBAs81CQw4bZDfI4i7r6RSCupVIPoMcbIcAag5VzZ6k2sz+oGXgh7lqotesLmcKpum03lhUes0/jQB03YUhwDt7xUSxKEZHg1lGtNcij2sVEhknGe69QnZsfTsi+6ZQQa5gn7oU2VUM5TNUpRoE/5HBzY4VBbSe8066lldPaXp7vNH1crk1eZ6mFLhegx7gKwtqqExxj+aHFgoaYlztMZGdWGsOdk+nl/HZKoUB/lBou/RTgz1HmbhQAqVVy5QzoU1n1hzQm3TFETIvwlLtMdzkUQVnbqV9jSAct Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Sep 02, 2026 at 03:31:12PM +0800, Wandun Chen wrote: > From: Wandun Chen > > Add MEMBLOCK_NODUMP to mark regions that should be excluded from > kdump vmcores. > > The flag is meant for reserved memory that carries no data useful for > crash analysis. Reusable reserved regions such as CMA may hold useful > data, so these regions must not be marked MEMBLOCK_NODUMP. Subsequent > patches wire this up for /reserved-memory and /memreserve/ entries. > > Suggested-by: Rob Herring > Signed-off-by: Wandun Chen > Tested-by: Meijing Zhao Reviewed-by: Mike Rapoport (Microsoft) > --- > include/linux/memblock.h | 9 +++++++++ > mm/memblock.c | 16 ++++++++++++++++ > 2 files changed, 25 insertions(+) -- Sincerely yours, Mike.