Commit Graph

3 Commits

Author SHA1 Message Date
David Sterba 88fc7becac btrfs-progs: pretty print device size in overflow error message
Signed-off-by: David Sterba <dsterba@suse.com>
2019-09-04 16:08:31 +02:00
Jeff Mahoney d29f475108 btrfs-progs: check if adding device would overflow while scanning
It's theoretically possible to add multiple devices with sizes that add up
to or exceed 16EiB.  A file system will be created successfully but will
have a superblock with incorrect values for total_bytes and other fields.

Kernels up to v5.0 will crash when they encounter this scenario.

We need to check for overflow and reject the device if it would overflow.

Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1099147
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2019-09-04 16:08:23 +02:00
David Sterba a62b7854de btrfs-progs: utils: split device scanning functions to own file
All helpers and data structures that are used for device registration.

Signed-off-by: David Sterba <dsterba@suse.com>
2019-07-04 02:06:34 +02:00