From: "H. Peter Anvin" <hpa@zytor.com>
To: Mark Lord <lkml@rtr.ca>
Cc: Jens Axboe <axboe@kernel.dk>, Jeff Garzik <jgarzik@pobox.com>,
Tejun Heo <htejun@gmail.com>, Greg KH <gregkh@suse.de>,
Linus Torvalds <torvalds@osdl.org>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel <linux-kernel@vger.kernel.org>,
IDE/ATA development list <linux-ide@vger.kernel.org>,
linux-scsi <linux-scsi@vger.kernel.org>
Subject: Re: What to do about the 2TB limit on HDIO_GETGEO ?
Date: Mon, 24 Mar 2008 22:13:55 -0700 [thread overview]
Message-ID: <47E88A13.70808@zytor.com> (raw)
In-Reply-To: <47E87942.2020409@rtr.ca>
Mark Lord wrote:
>
> One candidate might seem to be the existing /sys/block/dev/partition/start
> which I expect is already 64-bit friendly.
>
> But this requires about 150 lines of somewhat complex C code to access,
> using only the dev_t (from stat(2) on a file) as a starting point,
> or less if one relies upon the udev device name matching the sysfs
> device name.
>
> Is it time now for HDIO_GETGEO64 to make an appearance?
> Similar to how the existing BLKGETSIZE64 is supplanting BLKGETSIZE ?
>
Probably a better thing to have would be a way to look up block devices
in sysfs by device number.
-hpa
next prev parent reply other threads:[~2008-03-25 5:13 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <47E875AD.1000901@rtr.ca>
2008-03-25 4:02 ` What to do about the 2TB limit on HDIO_GETGEO ? Mark Lord
2008-03-25 4:19 ` Andrew Morton
2008-03-25 5:13 ` H. Peter Anvin [this message]
2008-03-25 13:37 ` Mark Lord
2008-03-25 13:55 ` H. Peter Anvin
2008-03-25 17:37 ` Mark Lord
2008-03-25 19:25 ` Greg KH
2008-03-25 19:34 ` Randy Dunlap
2008-03-25 20:36 ` H. Peter Anvin
2008-03-25 21:20 ` Greg KH
2008-03-25 21:26 ` H. Peter Anvin
2008-03-25 23:00 ` Greg KH
2008-03-25 23:05 ` H. Peter Anvin
2008-03-25 23:22 ` Greg KH
2008-03-27 19:05 ` Matthew Wilcox
2008-03-26 0:34 ` Mark Lord
2008-03-26 0:54 ` Tejun Heo
2008-03-26 3:38 ` Greg KH
2008-03-26 4:24 ` Tejun Heo
2008-03-26 6:04 ` H. Peter Anvin
2008-03-27 19:29 ` Kay Sievers
2008-03-27 19:38 ` H. Peter Anvin
2008-04-11 23:25 ` Dan Williams
2008-04-15 7:18 ` Andrew Morton
2008-04-15 13:47 ` Mark Lord
2008-04-15 14:20 ` James Bottomley
2008-04-15 18:16 ` H. Peter Anvin
2008-04-15 23:43 ` Dan Williams
2008-04-16 20:55 ` patch sysfs-add-sys-dev-char-block-to-lookup-sysfs-path-by-major-minor.patch added to gregkh-2.6 tree gregkh
2008-04-16 20:55 ` gregkh
2008-04-16 20:55 ` gregkh
2008-03-27 18:51 ` What to do about the 2TB limit on HDIO_GETGEO ? Kay Sievers
2008-03-27 18:55 ` H. Peter Anvin
2008-03-27 19:03 ` Kay Sievers
2008-03-25 15:17 ` James Bottomley
2008-03-25 17:31 ` Mark Lord
2008-03-25 19:32 ` James Bottomley
2008-03-25 17:45 ` Greg Freemyer
2008-03-25 17:52 ` Randy Dunlap
2008-03-25 18:09 ` Matthew Wilcox
2008-03-26 9:58 ` Boaz Harrosh
2008-03-30 4:28 ` Matt Domsch
[not found] ` <alpine.LFD.1.00.0803242254020.2775@woody.linux-foundation.org>
2008-03-25 13:34 ` Mark Lord
2008-03-25 13:51 ` Greg Freemyer
2008-03-25 14:31 ` Ric Wheeler
2008-03-25 15:25 ` Andrew Paprocki
2008-03-25 15:34 ` Matthew Wilcox
2008-03-25 15:48 ` Ric Wheeler
2008-03-25 16:47 ` Theodore Tso
2008-03-25 20:51 ` Theodore Tso
2008-03-25 20:51 ` Theodore Tso
2008-03-25 20:51 ` Theodore Tso
[not found] <abhxL-xC-7@gated-at.bofh.it>
[not found] ` <abhRd-1bf-15@gated-at.bofh.it>
[not found] ` <ablib-2zv-65@gated-at.bofh.it>
[not found] ` <abn0B-735-35@gated-at.bofh.it>
[not found] ` <abna7-7jK-3@gated-at.bofh.it>
[not found] ` <abo6b-11J-9@gated-at.bofh.it>
[not found] ` <aboSP-2Wf-29@gated-at.bofh.it>
[not found] ` <aboSP-2Wf-27@gated-at.bofh.it>
[not found] ` <abqrq-6eX-29@gated-at.bofh.it>
[not found] ` <abqrq-6eX-27@gated-at.bofh.it>
[not found] ` <abqKM-6Ka-13@gated-at.bofh.it>
2008-03-26 11:30 ` Bodo Eggert
2008-03-26 11:30 ` Bodo Eggert
2008-03-27 3:52 ` Greg KH
2008-03-27 4:57 ` H. Peter Anvin
2008-03-27 14:45 ` Mark Lord
2008-03-27 15:15 ` Greg KH
2008-03-26 11:30 ` Bodo Eggert
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