Apparently we don't need -d option at all. The libblkid does
cover both udev and /proc/partitions.
----
EVALUATE=<methods>
Defines LABEL and UUID evaluation method(s). Currently, the libblkid
library supports "udev" and "scan" methods. More than one methods may be
specified in a comma separated list. Default is "udev,scan". The "udev"
method uses udev /dev/disk/by-* symlinks and the "scan" method scans all
block devices from the /proc/partitions file.
----
We could mark -d option as deprecated (in btrfs dev scan and
btrfs fi show) or if agreed I would prefer totally removal.
That will clean up the code quite nicely.
Thanks, Anand
On 21/08/2014 06:21, Eric Sandeen wrote:
btrfs fileystem show and btrfs device scan today both have
the "-d" option to scan everything under /dev. But we also
have a mechanism to scan everything in /proc/partitions, which
should always be sufficient.
If anyone knows why we'd find something deep under /dev but
not in /proc/partitions, speak now or forever hold your peace...
Tested this by running through a matrix of -d, -m, or "" args
for show/scan, for a 2-device fs, with and without a symlinked
device, with and without a symlinked mountpoint. All output was
identical.
Thanks,
-Eric
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