From: "Elliott, Robert (Server Storage)" <Elliott@hp.com>
To: Dan Williams <dan.j.williams@intel.com>,
"Kani, Toshimitsu" <toshi.kani@hp.com>
Cc: Neil Brown <neilb@suse.de>, Greg KH <gregkh@linuxfoundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-nvdimm@lists.01.org" <linux-nvdimm@lists.01.org>
Subject: RE: [Linux-nvdimm] [PATCH v2 18/20] libnd: infrastructure for btt devices
Date: Fri, 15 May 2015 04:25:24 +0000 [thread overview]
Message-ID: <94D0CD8314A33A4D9D801C0FE68B40295A9068BF@G9W0745.americas.hpqcorp.net> (raw)
In-Reply-To: <CAPcyv4hd2KP6pLEOaTBHkN0nnAcFRoCtPE0pmeJBqvpg3yGwhA@mail.gmail.com>
> -----Original Message-----
> From: Linux-nvdimm [mailto:linux-nvdimm-bounces@lists.01.org] On Behalf
> Of Dan Williams
> Sent: Thursday, May 14, 2015 7:42 PM
> To: Kani, Toshimitsu
> Cc: Neil Brown; Greg KH; linux-kernel@vger.kernel.org; linux-
> nvdimm@lists.01.org
> Subject: Re: [Linux-nvdimm] [PATCH v2 18/20] libnd: infrastructure for
> btt devices
>
...
> So we can fix this to be at least as stable as the backing device
> names [1], but as far as I can see we would need to start using the
> backing device name in the btt device name. A strawman proposal is to
> append 's' to indicated 'sectored'. So /dev/pmem0s is the btt
> instance fronting /dev/pmem0. Other examples:
>
> /dev/pmem0p1s
> /dev/ndblk0.0s
> /dev/ndblk0.0p1s
> ...
>
> Thoughts?
>
> [1]: https://lists.01.org/pipermail/linux-nvdimm/2015-April/000636.html
I like that; it also hints to the user that another driver has already
claimed /dev/pmem0, similar to how the presence of /dev/sda1, /dev/sda2,
etc. hints that a program has partitioned /dev/sda.
WARNING: multiple messages have this Message-ID (diff)
From: "Elliott, Robert (Server Storage)" <Elliott@hp.com>
To: Dan Williams <dan.j.williams@intel.com>,
"Kani, Toshimitsu" <toshi.kani@hp.com>
Cc: Neil Brown <neilb@suse.de>, Greg KH <gregkh@linuxfoundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-nvdimm@lists.01.org" <linux-nvdimm@ml01.01.org>
Subject: RE: [Linux-nvdimm] [PATCH v2 18/20] libnd: infrastructure for btt devices
Date: Fri, 15 May 2015 04:25:24 +0000 [thread overview]
Message-ID: <94D0CD8314A33A4D9D801C0FE68B40295A9068BF@G9W0745.americas.hpqcorp.net> (raw)
In-Reply-To: <CAPcyv4hd2KP6pLEOaTBHkN0nnAcFRoCtPE0pmeJBqvpg3yGwhA@mail.gmail.com>
> -----Original Message-----
> From: Linux-nvdimm [mailto:linux-nvdimm-bounces@lists.01.org] On Behalf
> Of Dan Williams
> Sent: Thursday, May 14, 2015 7:42 PM
> To: Kani, Toshimitsu
> Cc: Neil Brown; Greg KH; linux-kernel@vger.kernel.org; linux-
> nvdimm@lists.01.org
> Subject: Re: [Linux-nvdimm] [PATCH v2 18/20] libnd: infrastructure for
> btt devices
>
...
> So we can fix this to be at least as stable as the backing device
> names [1], but as far as I can see we would need to start using the
> backing device name in the btt device name. A strawman proposal is to
> append 's' to indicated 'sectored'. So /dev/pmem0s is the btt
> instance fronting /dev/pmem0. Other examples:
>
> /dev/pmem0p1s
> /dev/ndblk0.0s
> /dev/ndblk0.0p1s
> ...
>
> Thoughts?
>
> [1]: https://lists.01.org/pipermail/linux-nvdimm/2015-April/000636.html
I like that; it also hints to the user that another driver has already
claimed /dev/pmem0, similar to how the presence of /dev/sda1, /dev/sda2,
etc. hints that a program has partitioned /dev/sda.
next prev parent reply other threads:[~2015-05-15 4:25 UTC|newest]
Thread overview: 179+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-28 18:24 [PATCH v2 00/20] libnd: non-volatile memory device support Dan Williams
2015-04-28 18:24 ` Dan Williams
2015-04-28 18:24 ` [PATCH v2 01/20] e820, efi: add ACPI 6.0 persistent memory types Dan Williams
2015-04-28 18:24 ` Dan Williams
2015-04-28 20:49 ` Andy Lutomirski
2015-04-28 20:49 ` Andy Lutomirski
2015-04-28 20:57 ` Dan Williams
2015-04-28 20:57 ` Dan Williams
2015-04-28 21:05 ` Andy Lutomirski
2015-04-28 21:05 ` Andy Lutomirski
2015-05-15 15:43 ` [Linux-nvdimm] " Jeff Moyer
2015-05-15 15:48 ` Dan Williams
2015-05-18 19:28 ` Andy Lutomirski
2015-04-28 18:24 ` [PATCH v2 02/20] libnd, nd_acpi: initial libnd infrastructure and NFIT support Dan Williams
2015-04-28 18:24 ` Dan Williams
2015-04-30 23:23 ` Rafael J. Wysocki
2015-04-30 23:23 ` Rafael J. Wysocki
2015-05-01 0:39 ` Dan Williams
2015-05-01 0:39 ` Dan Williams
2015-05-01 1:21 ` Rafael J. Wysocki
2015-05-01 1:21 ` Rafael J. Wysocki
2015-05-01 16:23 ` Dan Williams
2015-05-01 16:23 ` Dan Williams
2015-05-04 23:58 ` Rafael J. Wysocki
2015-05-04 23:58 ` Rafael J. Wysocki
2015-05-04 23:46 ` Dan Williams
2015-05-04 23:46 ` Dan Williams
2015-05-15 19:44 ` [Linux-nvdimm] " Jeff Moyer
2015-05-15 20:41 ` Dan Williams
2015-04-28 18:24 ` [PATCH v2 03/20] nd_acpi, nfit-test: manufactured NFITs for interface development Dan Williams
2015-04-28 18:24 ` Dan Williams
2015-05-15 20:25 ` [Linux-nvdimm] " Jeff Moyer
2015-05-15 20:50 ` Dan Williams
2015-04-28 18:24 ` [PATCH v2 04/20] libnd: ndctl class device, and nd bus attributes Dan Williams
2015-04-28 18:24 ` Dan Williams
2015-05-15 21:00 ` [Linux-nvdimm] " Jeff Moyer
2015-04-28 18:24 ` [PATCH v2 05/20] libnd, nd_acpi: dimm/memory-devices Dan Williams
2015-04-28 18:24 ` Dan Williams
2015-05-01 17:48 ` [Linux-nvdimm] " Toshi Kani
2015-05-01 17:48 ` Toshi Kani
2015-05-01 18:22 ` Dan Williams
2015-05-01 18:22 ` Dan Williams
2015-05-01 18:19 ` Toshi Kani
2015-05-01 18:19 ` Toshi Kani
2015-05-01 18:43 ` Dan Williams
2015-05-01 18:43 ` Dan Williams
2015-05-01 19:15 ` Toshi Kani
2015-05-01 19:15 ` Toshi Kani
2015-05-01 19:38 ` Dan Williams
2015-05-01 19:38 ` Dan Williams
2015-05-01 20:08 ` Toshi Kani
2015-05-01 20:08 ` Toshi Kani
2015-04-28 18:24 ` [PATCH v2 06/20] libnd: ndctl.h, the nd ioctl abi Dan Williams
2015-04-28 18:24 ` Dan Williams
2015-04-28 18:24 ` [PATCH v2 07/20] libnd, nd_dimm: dimm driver and base libnd device-driver infrastructure Dan Williams
2015-04-28 18:24 ` Dan Williams
2015-05-20 16:59 ` [Linux-nvdimm] " Elliott, Robert (Server Storage)
2015-05-20 16:59 ` Elliott, Robert (Server Storage)
2015-05-20 17:02 ` Dan Williams
2015-05-20 17:02 ` Dan Williams
2015-04-28 18:24 ` [PATCH v2 08/20] libnd, nd_acpi: regions (block-data-window, persistent memory, volatile memory) Dan Williams
2015-04-28 18:24 ` Dan Williams
2015-04-29 15:53 ` [Linux-nvdimm] " Elliott, Robert (Server Storage)
2015-04-29 15:53 ` Elliott, Robert (Server Storage)
2015-04-29 15:59 ` Dan Williams
2015-04-29 15:59 ` Dan Williams
2015-05-04 20:26 ` Toshi Kani
2015-05-04 20:26 ` Toshi Kani
2015-05-09 23:55 ` Dan Williams
2015-05-09 23:55 ` Dan Williams
2015-05-28 18:36 ` Toshi Kani
2015-05-28 18:36 ` Toshi Kani
2015-05-28 19:59 ` Dan Williams
2015-05-28 19:59 ` Dan Williams
2015-05-28 20:51 ` Linda Knippers
2015-05-28 20:51 ` Linda Knippers
2015-05-28 20:58 ` Dan Williams
2015-05-28 20:58 ` Dan Williams
2015-04-28 18:25 ` [PATCH v2 09/20] libnd: support for legacy (non-aliasing) nvdimms Dan Williams
2015-04-28 18:25 ` Dan Williams
2015-04-28 18:25 ` [PATCH v2 10/20] pmem: use ida Dan Williams
2015-04-28 18:25 ` Dan Williams
2015-04-29 18:25 ` [Linux-nvdimm] " Toshi Kani
2015-04-29 18:25 ` Toshi Kani
2015-04-29 18:59 ` Dan Williams
2015-04-29 18:59 ` Dan Williams
2015-04-29 18:53 ` Toshi Kani
2015-04-29 18:53 ` Toshi Kani
2015-04-29 20:49 ` Linda Knippers
2015-04-29 20:49 ` Linda Knippers
2015-04-29 21:36 ` Dan Williams
2015-04-29 21:36 ` Dan Williams
2015-04-28 18:25 ` [PATCH v2 11/20] libnd, nd_pmem: add libnd support to the pmem driver Dan Williams
2015-04-28 18:25 ` Dan Williams
2015-04-28 21:04 ` Andy Lutomirski
2015-04-28 21:04 ` Andy Lutomirski
2015-04-28 22:21 ` [Linux-nvdimm] " Phil Pokorny
2015-04-28 22:21 ` Phil Pokorny
2015-04-28 22:58 ` Andy Lutomirski
2015-04-28 22:58 ` Andy Lutomirski
2015-04-29 0:17 ` Phil Pokorny
2015-04-29 0:17 ` Phil Pokorny
2015-04-29 0:28 ` Andy Lutomirski
2015-04-29 0:28 ` Andy Lutomirski
2015-04-29 15:55 ` Dan Williams
2015-04-29 15:55 ` Dan Williams
2015-04-29 18:36 ` Andy Lutomirski
2015-04-29 18:36 ` Andy Lutomirski
2015-04-28 18:25 ` [PATCH v2 12/20] libnd, nd_acpi: add interleave-set state-tracking infrastructure Dan Williams
2015-04-28 18:25 ` Dan Williams
2015-04-28 18:25 ` [PATCH v2 13/20] libnd: namespace indices: read and validate Dan Williams
2015-04-28 18:25 ` Dan Williams
2015-04-28 18:25 ` [PATCH v2 14/20] libnd: pmem label sets and namespace instantiation Dan Williams
2015-04-28 18:25 ` Dan Williams
2015-04-28 18:25 ` [PATCH v2 15/20] libnd: blk labels " Dan Williams
2015-04-28 18:25 ` Dan Williams
2015-04-28 18:25 ` [PATCH v2 16/20] libnd: write pmem label set Dan Williams
2015-04-28 18:25 ` Dan Williams
2015-04-28 18:25 ` [PATCH v2 17/20] libnd: write blk " Dan Williams
2015-04-28 18:25 ` Dan Williams
2015-04-28 18:25 ` [PATCH v2 18/20] libnd: infrastructure for btt devices Dan Williams
2015-04-28 18:25 ` Dan Williams
2015-05-12 16:33 ` [Linux-nvdimm] " Toshi Kani
2015-05-12 16:33 ` Toshi Kani
2015-05-15 0:41 ` Dan Williams
2015-05-15 0:41 ` Dan Williams
2015-05-15 4:25 ` Elliott, Robert (Server Storage) [this message]
2015-05-15 4:25 ` Elliott, Robert (Server Storage)
2015-04-28 18:25 ` [PATCH v2 19/20] nd_btt: atomic sector updates Dan Williams
2015-04-28 18:25 ` Dan Williams
2015-05-17 1:19 ` [Linux-nvdimm] " Elliott, Robert (Server Storage)
2015-05-17 1:19 ` Elliott, Robert (Server Storage)
2015-05-17 3:22 ` Dan Williams
2015-05-17 3:22 ` Dan Williams
2015-05-20 17:20 ` Elliott, Robert (Server Storage)
2015-05-20 17:20 ` Elliott, Robert (Server Storage)
2015-05-18 22:38 ` Verma, Vishal L
2015-05-18 22:38 ` Verma, Vishal L
2015-04-28 18:26 ` [PATCH v2 20/20] libnd, nd_acpi, nd_blk: driver for BLK-mode access persistent memory Dan Williams
2015-04-28 18:26 ` Dan Williams
2015-04-28 21:10 ` Andy Lutomirski
2015-04-28 21:10 ` Andy Lutomirski
2015-04-28 22:30 ` Dan Williams
2015-04-28 22:30 ` Dan Williams
2015-04-28 23:06 ` Andy Lutomirski
2015-04-28 23:06 ` Andy Lutomirski
2015-04-29 17:10 ` Dan Williams
2015-04-29 17:10 ` Dan Williams
2015-04-29 19:28 ` Andy Lutomirski
2015-04-29 19:28 ` Andy Lutomirski
2015-04-28 20:52 ` [PATCH v2 00/20] libnd: non-volatile memory device support Andy Lutomirski
2015-04-28 20:52 ` Andy Lutomirski
2015-04-28 20:59 ` Dan Williams
2015-04-28 20:59 ` Dan Williams
2015-04-28 21:06 ` Andy Lutomirski
2015-04-28 21:06 ` Andy Lutomirski
2015-04-28 22:28 ` Dan Williams
2015-04-28 22:28 ` Dan Williams
2015-04-28 23:05 ` Andy Lutomirski
2015-04-28 23:05 ` Andy Lutomirski
2015-04-30 20:56 ` Ross Zwisler
2015-04-30 20:56 ` Ross Zwisler
2015-04-28 21:24 ` [Linux-nvdimm] " Elliott, Robert (Server Storage)
2015-04-28 21:24 ` Elliott, Robert (Server Storage)
2015-04-28 22:15 ` Dan Williams
2015-04-28 22:15 ` Dan Williams
2015-05-07 7:29 ` Christoph Hellwig
2015-05-07 7:29 ` Christoph Hellwig
2015-04-29 0:25 ` Rafael J. Wysocki
2015-04-29 0:25 ` Rafael J. Wysocki
2015-04-29 1:22 ` Dan Williams
2015-04-29 1:22 ` Dan Williams
2015-04-29 1:22 ` Dan Williams
2015-05-05 0:06 ` Rafael J. Wysocki
2015-05-05 0:06 ` Rafael J. Wysocki
2015-05-05 0:06 ` Rafael J. Wysocki
2015-05-08 6:31 ` Williams, Dan J
2015-05-08 6:31 ` Williams, Dan J
2015-05-08 6:31 ` Williams, Dan J
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