From: "Rob Herring (Arm)" <robh@kernel.org>
To: Wandun Chen <chenwandun1@gmail.com>
Cc: m.szyprowski@samsung.com, hpa@zytor.com, chenhuacai@kernel.org,
pasha.tatashin@soleen.com, devicetree@vger.kernel.org,
linux-mm@kvack.org, tglx@kernel.org, robin.murphy@arm.com,
kernel@xen0n.name, mingo@redhat.com, saravanak@kernel.org,
loongarch@lists.linux.dev, dave.hansen@linux.intel.com,
will@kernel.org, akpm@linux-foundation.org, rppt@kernel.org,
iommu@lists.linux.dev, mark.rutland@arm.com, alex@ghiti.fr,
linux-riscv@lists.infradead.org, pjw@kernel.org,
linux-kernel@vger.kernel.org, baoquan.he@linux.dev,
aou@eecs.berkeley.edu, kexec@lists.infradead.org,
pratyush@kernel.org, linux-arm-kernel@lists.infradead.org,
ruirui.yang@linux.dev, catalin.marinas@arm.com, bp@alien8.de,
palmer@dabbelt.com, x86@kernel.org
Subject: Re: [PATCH v6 08/10] of: reserved_mem: mark /reserved-memory entries with MEMBLOCK_NODUMP
Date: Thu, 17 Sep 2026 16:56:53 -0500 [thread overview]
Message-ID: <178968221332.3991643.14928206071521736133.robh@kernel.org> (raw)
In-Reply-To: <20260902073116.802752-9-chenwandun1@gmail.com>
On Wed, 02 Sep 2026 15:31:14 +0800, Wandun Chen wrote:
> From: Wandun Chen <chenwandun@lixiang.com>
>
> Mark non-dumpable reserved-memory regions with MEMBLOCK_NODUMP so
> kdump can omit them from the vmcore.
>
> The marking is guarded by CONFIG_CRASH_DUMP so non-kdump kernels do not
> pay the cost of splitting memblock.memory entries at NODUMP boundaries.
>
> Signed-off-by: Wandun Chen <chenwandun@lixiang.com>
> Tested-by: Meijing Zhao <zhaomeijing@lixiang.com>
> ---
> drivers/of/fdt.c | 1 +
> drivers/of/of_private.h | 1 +
> drivers/of/of_reserved_mem.c | 15 +++++++++++++++
> 3 files changed, 17 insertions(+)
>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
next prev parent reply other threads:[~2026-09-17 21:56 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-02 7:31 [PATCH v6 00/10] kdump: reduce vmcore size and capture time Wandun Chen
2026-09-02 7:31 ` [PATCH v6 01/10] mm: memblock: add missing HugeTLB flag name Wandun Chen
2026-09-14 5:20 ` Mike Rapoport
2026-09-15 12:49 ` Wandun
2026-09-02 7:31 ` [PATCH v6 02/10] riscv: build crash_mem ranges from memblock instead of resource tree Wandun Chen
2026-09-02 7:31 ` [PATCH v6 03/10] crash_core: fold duplicated memblock arch hooks into the weak default Wandun Chen
2026-09-18 7:30 ` Baoquan He
2026-09-18 8:45 ` Wandun
2026-09-18 8:48 ` Baoquan He
2026-09-02 7:31 ` [PATCH v6 04/10] crash_core: serialize crash header preparation against hotplug Wandun Chen
2026-09-18 7:54 ` Baoquan He
2026-09-02 7:31 ` [PATCH v6 05/10] crash_core: replace for_each_mem_range() with for_each_mem_region() Wandun Chen
2026-09-18 8:04 ` Baoquan He
2026-09-02 7:31 ` [PATCH v6 06/10] memblock: introduce MEMBLOCK_NODUMP flag Wandun Chen
2026-09-18 7:00 ` Mike Rapoport
2026-09-18 8:08 ` Baoquan He
2026-09-18 8:22 ` Wandun
2026-09-19 7:11 ` Mike Rapoport
2026-09-02 7:31 ` [PATCH v6 07/10] of: reserved_mem: add dumpable flag to opt-in vmcore Wandun Chen
2026-09-17 21:56 ` Rob Herring (Arm)
2026-09-02 7:31 ` [PATCH v6 08/10] of: reserved_mem: mark /reserved-memory entries with MEMBLOCK_NODUMP Wandun Chen
2026-09-03 7:32 ` Marek Szyprowski
2026-09-17 21:56 ` Rob Herring (Arm) [this message]
2026-09-02 7:31 ` [PATCH v6 09/10] of: reserved_mem: mark /memreserve/ entries as MEMBLOCK_NODUMP Wandun Chen
2026-09-03 7:32 ` Marek Szyprowski
2026-09-02 7:31 ` [PATCH v6 10/10] crash_core: skip MEMBLOCK_NODUMP regions when building vmcore ELF header Wandun Chen
2026-09-18 8:09 ` Baoquan He
2026-09-02 8:53 ` [PATCH v6 00/10] kdump: reduce vmcore size and capture time Baoquan He
2026-09-03 7:05 ` Wandun
2026-09-03 7:31 ` Baoquan He
2026-09-03 7:43 ` Wandun
2026-09-03 9:38 ` Baoquan He
2026-09-04 11:08 ` Chen Wandun
2026-09-15 13:01 ` Wandun
2026-09-18 7:03 ` Mike Rapoport
2026-09-18 7:31 ` Baoquan He
2026-09-18 8:17 ` Baoquan He
2026-09-18 10:53 ` Wandun
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