Btrfs fixes for 4.12

Hi,

please pull the following assorted fixes to 4.12. Thanks.

The following changes since commit 9bcaaea7418d09691f1ffab5c49aacafe3eef9d0:

btrfs: fix the gfp_mask for the reada_zones radix tree (2017-05-04 16:56:11 -0700)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-chris-4.12

for you to fetch changes up to 2eec59665d545ce443184b9c7a32a65b4dde6d4c:

Btrfs: clear EXTENT_DEFRAG bits in finish_ordered_io (2017-06-01 17:00:11 +0200)

----------------------------------------------------------------
Colin Ian King (1):
btrfs: fix incorrect error return ret being passed to mapping_set_error

David Sterba (1):
btrfs: use correct types for page indices in btrfs_page_exists_in_range

Jan Kara (1):
btrfs: Make flush bios explicitely sync

Jeff Mahoney (2):
btrfs: fix memory leak in update_space_info failure path
btrfs: fix race with relocation recovery and fs_root setup

Liu Bo (2):
Btrfs: skip commit transaction if we don't have enough pinned bytes
Btrfs: clear EXTENT_DEFRAG bits in finish_ordered_io

Qu Wenruo (1):
btrfs: fiemap: Cache and merge fiemap extent before submit it to user

Su Yue (1):
btrfs: tree-log.c: Wrong printk information about namelen

 fs/btrfs/dir-item.c    |   2 +-
 fs/btrfs/disk-io.c     |  10 ++--
 fs/btrfs/extent-tree.c |   9 ++--
 fs/btrfs/extent_io.c   | 126 +++++++++++++++++++++++++++++++++++++++++++++++--
 fs/btrfs/inode.c       |   6 +--
 5 files changed, 138 insertions(+), 15 deletions(-)

Thanks Dave, I've been bashing on these along with Omar's enospc fix for the last few days.

Omar mentioned that until we fix the pinned bytes counter we should leave out this commit from Liu Bo, so I've rebased it out for now.

-chris