tree 0ae829011d6c29f61035982bfc115dd037e8242c
parent c6e308713a47527f88a277ee95b7c5d1db80f77b
author Yan Zheng <zheng.yan@oracle.com> 1232552956 -0500
committer Chris Mason <chris.mason@oracle.com> 1232552956 -0500

Btrfs: fix locking issue in btrfs_remove_block_group

We should hold the block_group_cache_lock while modifying the
block groups red-black tree. Thank you,

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>