Btrfs: show useful info in space reservation tracepoint

o For space info, the type of space info is useful for debug.
o For transaction handle, its transid is useful.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

diff --cc fs/btrfs/extent-tree.c
Simple merge

diff --cc fs/btrfs/inode-map.c
Simple merge

diff --cc fs/btrfs/transaction.c
Simple merge