Hello,
The master branch of:
git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable.git
Has two commits fixing problems with adding devices or growing devices
in a btrfs filesystem.
Basically the code that actually allocates space wasn't being properly
told about the new space, and so the only way to make use of it was to
unmount and mount again.
Chris Mason (2):
Btrfs: Fix locking around adding new space_info
Btrfs: Clear space_info full when adding new devices
fs/btrfs/ctree.h | 9 +++++++++
fs/btrfs/extent-tree.c | 45 ++++++++++++++++++++++++++++++++++++++++++---
fs/btrfs/volumes.c | 8 ++++++++
3 files changed, 59 insertions(+), 3 deletions(-)