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From: Anshuman Khandual <anshuman.khandual@arm.com>
To: Mike Kravetz <mike.kravetz@oracle.com>, Michal Hocko <mhocko@kernel.org>
Cc: akpm@linux-foundation.org, ard.biesheuvel@linaro.org,
	broonie@kernel.org, christophe.leroy@c-s.fr,
	dan.j.williams@intel.com, dave.hansen@intel.com,
	davem@davemloft.net, gerald.schaefer@de.ibm.com,
	gregkh@linuxfoundation.org, heiko.carstens@de.ibm.com,
	jgg@ziepe.ca, jhogan@kernel.org, keescook@chromium.org,
	kirill@shutemov.name, linux@armlinux.org.uk,
	mark.rutland@arm.com, mm-commits@vger.kernel.org,
	mpe@ellerman.id.au, paul.burton@mips.com, paulus@samba.org,
	penguin-kernel@i-love.sakura.ne.jp, peterz@infradead.org,
	ralf@linux-mips.org, rppt@linux.vnet.ibm.com,
	schowdary@nvidia.com, schwidefsky@de.ibm.com,
	Steven.Price@arm.com, tglx@linutronix.de, vbabka@suse.cz,
	vgupta@synopsys.com, willy@infradead.org,
	yamada.masahiro@socionext.com, linux-mm@kvack.org
Subject: Re: + mm-hugetlb-make-alloc_gigantic_page-available-for-general-use.patch added to -mm tree
Date: Tue, 15 Oct 2019 15:27:46 +0530	[thread overview]
Message-ID: <87be189d-6fb5-1cfb-4a39-714e75ff866c@arm.com> (raw)
In-Reply-To: <f3c06f5c-56ea-d9f3-cd9d-ca206521144d@oracle.com>



On 10/14/2019 10:22 PM, Mike Kravetz wrote:
> On 10/14/19 6:08 AM, Anshuman Khandual wrote:
>> On 10/14/2019 06:30 PM, Michal Hocko wrote:
>>>
>>> OK, thanks for the clarification. This all means that this patch is not
>>> the right approach. If you need a more generic alloc_contig_range then
>>> add it to page_alloc.c and make it completely independent on the hugetlb
>>> config and the code. Hugetlb allocator can reuse that helper.
> 
> Should we revisit this previous attempt at such an interface?
> 
> https://lkml.org/lkml/2018/4/16/1072
> 
> This looks like another use case.
> 

The current proposal [v6] does not go far enough to unify all callers
of alloc_contig_range() looking for contiguous pages of certain size,
but instead it just tries not to duplicate HugeTLB gigantic allocation
code in the test case for it's purpose.


  reply	other threads:[~2019-10-15  9:57 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20191011202932.GZoUOoURm%akpm@linux-foundation.org>
2019-10-14 12:17 ` + mm-hugetlb-make-alloc_gigantic_page-available-for-general-use.patch added to -mm tree Michal Hocko
2019-10-14 12:53   ` Anshuman Khandual
2019-10-14 13:00     ` Michal Hocko
2019-10-14 13:08       ` Anshuman Khandual
2019-10-14 13:21         ` Michal Hocko
2019-10-14 16:52         ` Mike Kravetz
2019-10-15  9:57           ` Anshuman Khandual [this message]
2019-10-15 10:31             ` Michal Hocko
2019-10-15 10:34               ` Anshuman Khandual
2019-10-14 20:29   ` Matthew Wilcox
2019-10-15  9:30     ` Anshuman Khandual
2019-10-15 11:24       ` Matthew Wilcox
2019-10-15 11:36         ` Michal Hocko
2019-10-15 12:14           ` Anshuman Khandual
2019-10-16  8:55         ` Anshuman Khandual

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