[PATCH v2 0/4] btrf_show_devname related fixes

These fixes are inspired by the bug report and its discussions in the
mailing list subject
 btrfs: traverse seed devices if fs_devices::devices is empty in show_devname

Anand Jain (4):
  btrfs: consolidate device_list_mutex in prepare_sprout to its parent
  btrfs: save latest btrfs_device instead of its block_device in
    fs_devices
  btrfs: use latest_dev in btrfs_show_devname
  btrfs: update latest_dev when we sprout

 fs/btrfs/disk-io.c   |  6 +++---
 fs/btrfs/extent_io.c |  2 +-
 fs/btrfs/inode.c     |  2 +-
 fs/btrfs/procfs.c    |  6 +++---
 fs/btrfs/super.c     | 26 +++-----------------------
 fs/btrfs/volumes.c   | 19 +++++++++++--------
 fs/btrfs/volumes.h   |  2 +-
 7 files changed, 23 insertions(+), 40 deletions(-)

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2.31.1