From: Michal Hocko <mhocko@kernel.org>
To: David Hildenbrand <david@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
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Subject: Re: [PATCH V6 1/2] mm/page_alloc: Make alloc_gigantic_page() available for general use
Date: Tue, 15 Oct 2019 13:47:23 +0200 [thread overview]
Message-ID: <20191015114723.GD317@dhcp22.suse.cz> (raw)
In-Reply-To: <9da1f196-51bd-06ac-c5dc-b55776fce2be@redhat.com>
On Tue 15-10-19 13:42:03, David Hildenbrand wrote:
[...]
> > -static bool pfn_range_valid_gigantic(struct zone *z,
> > - unsigned long start_pfn, unsigned long nr_pages)
> > -{
> > - unsigned long i, end_pfn = start_pfn + nr_pages;
> > - struct page *page;
> > -
> > - for (i = start_pfn; i < end_pfn; i++) {
> > - if (!pfn_valid(i))
> > - return false;
> > -
> > - page = pfn_to_page(i);
>
> Am I missing something or should here really be a pfn_to_online_page() here
> instead of a pfn_valid() ?
http://lkml.kernel.org/r/20180423000943.GO17484@dhcp22.suse.cz
--
Michal Hocko
SUSE Labs
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next prev parent reply other threads:[~2019-10-15 11:47 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1571131302-32290-1-git-send-email-anshuman.khandual@arm.com>
[not found] ` <1571131302-32290-2-git-send-email-anshuman.khandual@arm.com>
2019-10-15 10:45 ` [PATCH V6 1/2] mm/page_alloc: Make alloc_gigantic_page() available for general use Michal Hocko
2019-10-15 11:07 ` Anshuman Khandual
2019-10-15 11:42 ` David Hildenbrand
2019-10-15 11:47 ` Michal Hocko [this message]
2019-10-15 11:50 ` David Hildenbrand
2019-10-15 12:01 ` David Hildenbrand
2019-10-15 12:09 ` Michal Hocko
2019-10-15 12:11 ` Michal Hocko
[not found] ` <1571131302-32290-3-git-send-email-anshuman.khandual@arm.com>
2019-10-15 11:46 ` [PATCH V6 2/2] mm/debug: Add tests validating architecture page table helpers Michal Hocko
2019-10-15 12:27 ` Anshuman Khandual
2019-10-15 18:09 ` Qian Cai
2019-10-16 9:54 ` Anshuman Khandual
2019-10-15 14:41 ` [PATCH V6 0/2] " Qian Cai
2019-10-15 15:21 ` Anshuman Khandual
2019-10-15 18:42 ` Qian Cai
2019-10-16 8:59 ` Anshuman Khandual
2019-10-16 8:20 ` Michal Hocko
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