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From: Dan Williams <dan.j.williams@intel.com>
To: Nicholas Piggin <npiggin@gmail.com>
Cc: Linux MM <linux-mm@kvack.org>,
	Andrea Arcangeli <aarcange@redhat.com>,
	Xiao Guangrong <guangrong.xiao@linux.intel.com>,
	Arnd Bergmann <arnd@arndb.de>,
	"linux-nvdimm@lists.01.org" <linux-nvdimm@lists.01.org>,
	linux-api@vger.kernel.org,
	Dave Hansen <dave.hansen@linux.intel.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
	linux-arch@vger.kernel.org
Subject: Re: [RFC PATCH 1/2] mm, mincore2(): retrieve dax and tlb-size attributes of an address range
Date: Mon, 12 Sep 2016 20:49:43 -0700	[thread overview]
Message-ID: <CAPcyv4hSs2M3LYscsepYat+FN9e3aUxSY3kGMFD6M9-9BCR5HQ@mail.gmail.com> (raw)
In-Reply-To: <20160913121645.652e6512@roar.ozlabs.ibm.com>

On Mon, Sep 12, 2016 at 7:16 PM, Nicholas Piggin <npiggin@gmail.com> wrote:
> On Mon, 12 Sep 2016 10:29:17 -0700
[..]
>> Certainly one of the new request flags can indicate that the vector is
>> made up of larger entries.
>
> Hmm. Changing prototype depending on flags. I thought I was having
> a nightmare about ioctls for a minute there :)

Heh :)

> In general, is this what we want for a new API? Should we be thinking
> about an extent API?

This probably fits better with the use cases I know that want to
consume this information, something like fiemap (mextmap, maybe?) for
memory.

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  reply	other threads:[~2016-09-13  3:49 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-11 17:31 Dan Williams
2016-09-11 17:31 ` [RFC PATCH 2/2] x86: wire up mincore2() Dan Williams
2016-09-13 18:44   ` Ingo Molnar
2016-09-12  3:35 ` [RFC PATCH 1/2] mm, mincore2(): retrieve dax and tlb-size attributes of an address range Nicholas Piggin
2016-09-12 17:29   ` Dan Williams
2016-09-13  2:16     ` Nicholas Piggin
2016-09-13  3:49       ` Dan Williams [this message]
2016-09-12  6:29 ` Oliver O'Halloran
2016-09-12 17:25   ` Dan Williams
2016-09-12 10:09 ` Kirill A. Shutemov
2016-09-12 17:15   ` Dan Williams
2016-09-13  6:44 ` Christoph Hellwig

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