Btrfs fixes for 4.17-rc6

Hi,

we've accumulated some fixes during the last week, some of them were in the works for a longer time but there are some newer ones too. Most of the fixes have a reproducer and fix user visible problems, also candidates for stable kernels. They IMHO qualify for a late rc, though I did not expect that many.

The commit date may differ from author date because I added the stable and Fixes tags where missing. There are no merge conflicts against current master.

Please pull, thanks.

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The following changes since commit a6aa10c70bf72fb28504cb5de5deac75da78b0f5:

Btrfs: send, fix missing truncate for inode with prealloc extent past eof (2018-05-02 11:55:29 +0200)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-4.17-rc5-tag

for you to fetch changes up to 02ee654d3a04563c67bfe658a05384548b9bb105:

btrfs: fix crash when trying to resume balance without the resume flag (2018-05-17 14:38:24 +0200)

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Anand Jain (1):
btrfs: fix crash when trying to resume balance without the resume flag

Filipe Manana (2):
Btrfs: fix xattr loss after power failure
Btrfs: fix duplicate extents after fsync of file with prealloc extents

Liu Bo (1):
btrfs: fix reading stale metadata blocks after degraded raid1 mounts

Misono Tomohiro (1):
btrfs: property: Set incompat flag if lzo/zstd compression is set

Nikolay Borisov (2):
btrfs: Split btrfs_del_delalloc_inode into 2 functions
btrfs: Fix delalloc inodes invalidation during transaction abort

Robbie Ko (1):
Btrfs: send, fix invalid access to commit roots due to concurrent snapshotting

 fs/btrfs/ctree.c    |  22 ++++++--
 fs/btrfs/ctree.h    |   2 +
 fs/btrfs/disk-io.c  |  26 ++++++----
 fs/btrfs/inode.c    |  13 +++--
 fs/btrfs/props.c    |  12 +++--
 fs/btrfs/tree-log.c | 144 +++++++++++++++++++++++++++++++++++++++++++---------
 fs/btrfs/volumes.c  |   9 ++++
 7 files changed, 180 insertions(+), 48 deletions(-)

Especially with the tree-log.c changes being fairly big, I took a look, and I have to say that I appreciate (a) the warning in the pull request and (b) the extensive log messages explaining the problems these patches fix.

I obviously still prefer to see only small and simple one-liners just before I'm making ready to release rc6, but in the absence of oneliners I do appreciate good explanations.

Thanks,

Linus