Btrfs

Hi Linus,

Please pull my for-linus branch:

git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs.git for-linus

This is an assortment of crash fixes:

Josef Bacik (3) commits (+9/-8):
Btrfs: don't delete fs_roots until after we cleanup the transaction (+1/-1)
Btrfs: init relocate extent_io_tree with a mapping (+5/-4)
Btrfs: stop all workers before cleaning up roots (+3/-3)

Liu Bo (1) commits (+2/-2):
Btrfs: fix use-after-free bug during umount

Naohiro Aota (1) commits (+3/-0):
btrfs: Drop inode if inode root is NULL

Total: (5) commits (+14/-10)

 fs/btrfs/disk-io.c    | 10 +++++-----
 fs/btrfs/inode.c      |  3 +++
 fs/btrfs/relocation.c |  9 +++++----
 3 files changed, 13 insertions(+), 9 deletions(-)