[udisks] CD-ROM polling failed due to O_EXCL flag (poller.c)

[Karel Zak]

On Tue, Mar 01, 2011 at 01:09:56PM +0100, Kay Sievers wrote:
> Btrfs is like a network filesystem, it has no backing device.

 but for example NFS is consistent:

 $ stat --format "%d" /mnt/store/a
 41

 $ grep /mnt/store /proc/self/mountinfo
 47 20 0:41 / /mnt/store rw,relatime - nfs sr.net.home:/mnt/store rw,vers=3,rsize=131072,wsize=131072,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.111.1,mountvers=3,mountport=37090,mountproto=udp,addr=192.168.111.1
       ^^^^

 so the stat.st_dev is the same like in mountinfo

    Karel

-- 
 Karel Zak  <kzak at redhat.com>
 http://karelzak.blogspot.com