database for device scan

database for device scan

[Helmut Hullen]

Hallo, linux-btrfs,

I've used for some days btrfs-progs-20100717, now I'm using "btrfs- 
progs-201030" (built with the "SlackBuild" script for slackware).

Works fine, but the actual version works in another way than the  
previous when I say

        mkfs.btrfs /dev/sdb1

(or how the device may be named).
The previous version finished its work within some seconds, the actual  
version first tests all block devices in "/dev".

If I'd run "udev" that may be no big problem. But I prefer not using  
"udev", I prefer working with static device entries, and that leads to  
many entries for devices which really don't exist. And "scan" scans all  
of them.

Maybe it's a better idea not to use "/dev" as database, using "proc/ 
partitions" may be the better way.

Viele Gruesse!
Helmut