btrfs: Annotate fall-through when parsing mount option

This patch avoids that the compiler complains that a fall-through
annotation is missing when building with W=1.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Bart Van Assche 2018-06-20 10:03:32 -07:00 • committed by David Sterba
commit acd43e3cdf