The manual page of btrfsck clearly states 'btrfs check --repair' is a
dangerous operation.
Although this warning is in place users do not read the manual page
and/or are used to the behaviour of fsck utilities which repair the
filesystem, and thus potentially cause harm.
Similar to 'btrfs balance' without any filters, add a warning and a
countdown, so users can bail out before eventual corrupting the
filesystem more than it already is.
To override the timeout, let --force skip it and continue.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: David Sterba <dsterba@suse.com>
e388bf386b