From: Mike Rapoport <rppt@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: "Andrea Arcangeli" <aarcange@redhat.com>,
"Baoquan He" <bhe@redhat.com>, "Borislav Petkov" <bp@alien8.de>,
"Chris Wilson" <chris@chris-wilson.co.uk>,
"David Hildenbrand" <david@redhat.com>,
"H. Peter Anvin" <hpa@zytor.com>,
"Ingo Molnar" <mingo@redhat.com>,
"Linus Torvalds" <torvalds@linux-foundation.org>,
"Łukasz Majczak" <lma@semihalf.com>,
"Mel Gorman" <mgorman@suse.de>,
"Michal Hocko" <mhocko@kernel.org>,
"Mike Rapoport" <rppt@linux.ibm.com>, "Qian Cai" <cai@lca.pw>,
"Sarvela, Tomi P" <tomi.p.sarvela@intel.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Vlastimil Babka" <vbabka@suse.cz>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
stable@vger.kernel.org, x86@kernel.org
Subject: Re: [PATCH v8 1/1] mm/page_alloc.c: refactor initialization of struct page for holes in memory layout
Date: Fri, 26 Feb 2021 08:14:47 +0200 [thread overview]
Message-ID: <20210226061447.GN1447004@kernel.org> (raw)
In-Reply-To: <20210225160851.43b50f0d02f8da958a2b7887@linux-foundation.org>
On Thu, Feb 25, 2021 at 04:08:51PM -0800, Andrew Morton wrote:
> On Fri, 26 Feb 2021 00:43:51 +0200 Mike Rapoport <rppt@kernel.org> wrote:
>
> > From: Mike Rapoport <rppt@linux.ibm.com>
>
> > void __meminit __weak memmap_init_zone(struct zone *zone)
> > {
> > unsigned long zone_start_pfn = zone->zone_start_pfn;
> > unsigned long zone_end_pfn = zone_start_pfn + zone->spanned_pages;
> > int i, nid = zone_to_nid(zone), zone_id = zone_idx(zone);
> > + static unsigned long hole_pfn = 0;
>
> static implies that pgdat->node_zones[] is alwyas sorted in ascending
> pfn order. Always true?
Yes.
--
Sincerely yours,
Mike.
next prev parent reply other threads:[~2021-02-26 6:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-25 22:43 [PATCH v8 0/1] mm: fix initialization of struct page for holes in memory layout Mike Rapoport
2021-02-25 22:43 ` [PATCH v8 1/1] mm/page_alloc.c: refactor " Mike Rapoport
2021-02-26 0:08 ` Andrew Morton
2021-02-26 6:14 ` Mike Rapoport [this message]
2021-02-26 6:42 ` Greg KH
2021-02-26 11:07 ` David Hildenbrand
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