Misc fixes for 4.6, part 2

Hi,

please pull the following patches to 4.6. They fix some user visible problems, improve error handling and there are two debugging enhancements. Thanks.

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The following changes since commit 232cad8413a0bfbd25f11cc19fd13dfd85e1d8ad:

Merge branch 'misc-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.6 (2016-03-24 17:36:13 -0700)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git misc-4.6

for you to fetch changes up to 7ccefb98ce3e5c4493cd213cd03714b7149cf0cb:

btrfs: Reset IO error counters before start of device replacing (2016-04-04 16:29:22 +0200)

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David Sterba (1):
btrfs: fallback to vmalloc in btrfs_compare_tree

Davide Italiano (1):
Btrfs: Improve FL_KEEP_SIZE handling in fallocate

Josef Bacik (1):
Btrfs: don't use src fd for printk

Liu Bo (1):
Btrfs: fix invalid reference in replace_path

Mark Fasheh (2):
btrfs: handle non-fatal errors in btrfs_qgroup_inherit()
btrfs: Add qgroup tracing

Qu Wenruo (1):
btrfs: Output more info for enospc_debug mount option

Yauhen Kharuzhy (1):
btrfs: Reset IO error counters before start of device replacing

 fs/btrfs/ctree.c             | 12 ++++--
 fs/btrfs/dev-replace.c       |  2 +
 fs/btrfs/extent-tree.c       | 21 ++++++++++-
 fs/btrfs/file.c              |  9 +++--
 fs/btrfs/ioctl.c             |  2 +-
 fs/btrfs/qgroup.c            | 63 ++++++++++++++++++++-----------
 fs/btrfs/relocation.c        |  1 +
 include/trace/events/btrfs.h | 89 +++++++++++++++++++++++++++++++++++++++++++-
 8 files changed, 166 insertions(+), 33 deletions(-)