In article <linux.kernel.Pine.GSO.4.10.10001240436380.27195-100000@weyl.math.psu.edu>,
Alexander Viro <viro@math.psu.edu> wrote:
>
>
>On 22 Jan 2000, david parsons wrote:
>
>> In article <linux.kernel.Pine.GSO.4.10.10001222307410.27195-100000@weyl.math.psu.edu>,
>> Alexander Viro <viro@math.psu.edu> wrote:
>>
>> >(I _really_ don't see the point in separate names for IDE interfaces here,
>>
>> Because, unlike scsi, ide majors are randomly scattered all over g-d's
>> creation. If you've got some (puke) userland script faking devfs
>> (like recent MAKEDEV's) it will probably care about the difference
>> between ide0, ide1, ide2, and so on.
>
>Dave, meet /dev/sdq. /dev/sdq, meet Dave. Dave, pay attention to /dev/sdq
>major...
My name's not Dave.
But as for /dev/sdq...
root@downbelow# ls -l /dev/sdq
ls: /dev/sdq: No such file or directory
root@downbelow# ls -l /dev/sdq*
ls: /dev/sdq*: No such file or directory
root@downbelow#
I presume that /dev/sdq will be living on Yet Another major to get
around the bizarre type-of-device numbering of scsi devices? I'll
just start shuddering now and avoid the rush.
>> >This change is needed if we want to avoid (a) races and (b) major suckage
>> >with exporting spinlocks, etc.
>>
>> Why?
>
>One word: rmmod.
So the output of /proc/devices will be out of date if an rmmod is done
just after the code trawls over the registry entry for the offending
device. Is this important?
>> >If somebody wants to protest - please, do
>> >it _now_.
>>
>> Consider this a most vigorous protest.
>Umm... Will /proc/drivers/block/<driver>/ranges make you happy? I.e.
>$ cat /proc/drivers/block/ide/ranges
>0300(80)
>1600(80)
>2100(80)
>2200(80)
>$ cat /proc/drivers/block/ide/hdb/range
>0340(40)
No. That's a pretty awful scheme there.
____
david parsons \bi/ so now I need to make a zillion system calls to figure
\/ out which major is affiliated with which hdx device?
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