[PATCH v6 06/10] memblock: introduce MEMBLOCK_NODUMP flag

[Mike Rapoport]

On Wed, Sep 02, 2026 at 03:31:12PM +0800, Wandun Chen wrote:
> From: Wandun Chen <chenwandun at lixiang.com>
> 
> 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 <robh at kernel.org>
> Signed-off-by: Wandun Chen <chenwandun at lixiang.com>
> Tested-by: Meijing Zhao <zhaomeijing at lixiang.com>

Reviewed-by: Mike Rapoport (Microsoft) <rppt at kernel.org>

> ---
>  include/linux/memblock.h |  9 +++++++++
>  mm/memblock.c            | 16 ++++++++++++++++
>  2 files changed, 25 insertions(+)

-- 
Sincerely yours,
Mike.