Btrfs tracepoint updates for 4.10

Hi,

I've selected a handful of tracepoint fixes and updates. The fixes a crash when tracepoints are enabled so this can be considered urgent, the others are minor harmless improvements. The qgroup tracepoint update is not included as it depends on other patches so it'll possibly go later or with the rest of the qgroup patches.

The following changes since commit 2939e1a86f758b55cdba73e29397dd3d94df13bc:

btrfs: limit async_work allocation and worker func duration (2016-12-13 11:01:30 -0800)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git tracepoint-updates-4.10

for you to fetch changes up to 562a7a07bf61e2949f7cbdb6ac7537ad9e2794d1:

btrfs: make tracepoint format strings more compact (2017-01-09 11:27:07 +0100)

----------------------------------------------------------------
David Sterba (2):
btrfs: fix crash when tracepoint arguments are freed by wq callbacks
btrfs: make tracepoint format strings more compact

Liu Bo (2):
Btrfs: add 'inode' for extent map tracepoint
Btrfs: add truncated_len for ordered extent tracepoints

 fs/btrfs/async-thread.c      |  15 +++--
 fs/btrfs/inode.c             |   2 +-
 include/trace/events/btrfs.h | 146 +++++++++++++++++++++++--------------------
 3 files changed, 91 insertions(+), 72 deletions(-)