Messages in this thread |  | | | Date | Mon, 24 Mar 2008 22:13:55 -0700 | | From | "H. Peter Anvin" <> | | Subject | Re: What to do about the 2TB limit on HDIO_GETGEO ? | |
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
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