Re: [PATCH v2] mm/mm_init: fix out-of-range first_deferred_pfn

[Mike Rapoport]

On Fri, 07 Aug 2026 03:12:43 +0000, Alexander Graf wrote:
> With CONFIG_DEFERRED_STRUCT_PAGE_INIT enabled, deferred_grow_zone()
> undefers struct page ranges early in boot to satisfy an allocation.  With
> a large CMA reservation in place, the ranges it finds may not add up to
> the allocation it was asked for, and we end up undeferring all available
> RAM and still fall short.  That is fine in itself: the function accounts
> for it and leaves the caller to decide whether it now has enough memory.
> 
> [...]

I reworded the code comment and the changelog even more and
applied to for-next branch of memblock.git tree, thanks!

[1/1] mm/mm_init: fix out-of-range first_deferred_pfn
      commit: 97090500d776c3f6d08e857e3a0a7cf092999094

tree: https://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
branch: for-next

--
Sincerely yours,
Mike.