From: David Hildenbrand <david@redhat.com>
To: Mike Rapoport <rppt@kernel.org>, linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
Bill Wendling <morbo@google.com>,
Daniel Jordan <daniel.m.jordan@oracle.com>,
Justin Stitt <justinstitt@google.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Miguel Ojeda <ojeda@kernel.org>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <nick.desaulniers+lkml@gmail.com>,
linux-kernel@vger.kernel.org, llvm@lists.linux.dev
Subject: Re: [PATCH 3/4] mm/mm_init: drop deferred_init_maxorder()
Date: Tue, 19 Aug 2025 09:54:22 +0200 [thread overview]
Message-ID: <408d7eaa-5aea-4490-9fd0-978c4eb94d32@redhat.com> (raw)
In-Reply-To: <20250818064615.505641-4-rppt@kernel.org>
>
> -static unsigned long __init
> -deferred_init_memmap_chunk(unsigned long start_pfn, unsigned long end_pfn,
> - struct zone *zone)
> -{
> - unsigned long nr_pages = 0;
> - unsigned long spfn, epfn;
> - u64 i = 0;
> + while (spfn < epfn) {
> + unsigned long mo_pfn = ALIGN(spfn + 1, MAX_ORDER_NR_PAGES);
> + unsigned long chunk_end = min(mo_pfn, epfn);
>
> - deferred_init_mem_pfn_range_in_zone(&i, zone, &spfn, &epfn, start_pfn);
> + nr_pages += deferred_init_pages(zone, spfn, chunk_end);
> + deferred_free_pages(spfn, chunk_end - spfn);
I assume the expectation is that all PFNs in the start_pfn -> end_pfn
range will go to this zone, correct?
--
Cheers
David / dhildenb
next prev parent reply other threads:[~2025-08-19 7:54 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-18 6:46 [PATCH 0/4] mm/mm_init: simplify deferred init of struct pages Mike Rapoport
2025-08-18 6:46 ` [PATCH 1/4] mm/mm_init: use deferred_init_memmap_chunk() in deferred_grow_zone() Mike Rapoport
2025-08-19 7:44 ` David Hildenbrand
2025-08-19 9:52 ` Wei Yang
2025-08-19 10:54 ` Mike Rapoport
2025-08-19 23:51 ` Wei Yang
2025-08-20 9:20 ` Mike Rapoport
2025-08-20 12:42 ` Wei Yang
2025-08-18 6:46 ` [PATCH 2/4] mm/mm_init: deferred_init_memmap: use a job per zone Mike Rapoport
2025-08-19 7:45 ` David Hildenbrand
2025-08-18 6:46 ` [PATCH 3/4] mm/mm_init: drop deferred_init_maxorder() Mike Rapoport
2025-08-19 7:54 ` David Hildenbrand [this message]
2025-08-19 9:22 ` Wei Yang
2025-08-19 10:39 ` Mike Rapoport
2025-08-19 12:31 ` David Hildenbrand
2025-08-18 6:46 ` [PATCH 4/4] memblock: drop for_each_free_mem_pfn_range_in_zone_from() Mike Rapoport
2025-08-19 7:39 ` [PATCH 0/4] mm/mm_init: simplify deferred init of struct pages Wei Yang
2025-08-19 10:41 ` Mike Rapoport
2025-08-22 5:54 ` Mike Rapoport
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