[PATCH 0/2] fix verify_one_dev_extent and btrfs_find_device

[Anand Jain <anand.jain@oracle.com>]

btrfs_find_device()'s last arg %seed is unused, which the commit
343694eee8d8 (btrfs: switch seed device to list api) ignored purposely
or missed.

But there isn't any regression due to that. And this series makes
it official that btrfs_find_device() doesn't need the last arg.

To achieve that patch 1/2 critically reviews the need for the check
disk_total_bytes == 0 in the function verify_one_dev_extent() and finds
that, the condition is never met and so deletes the same. Which also
drops one of the parents of btrfs_find_device() with the last arg false.

So only device_list_add() is using btrfs_find_device() with the last arg as
false, which the patch 2/2 finds is not required as well. So
this patch drops the last arg in btrfs_find_device() altogether.

Anand Jain (2):
  btrfs: drop never met condition of disk_total_bytes == 0
  btrfs: fix btrfs_find_device unused arg seed

 fs/btrfs/dev-replace.c |  4 ++--
 fs/btrfs/ioctl.c       |  4 ++--
 fs/btrfs/scrub.c       |  4 ++--
 fs/btrfs/volumes.c     | 37 ++++++++++---------------------------
 fs/btrfs/volumes.h     |  2 +-
 5 files changed, 17 insertions(+), 34 deletions(-)

-- 
2.25.1