Btrfs fixes for 5.3-rc2

Hi,

please pull two regression fixes:

* hangs caused by a missing barrier in the locking code

* memory leaks of extent_state due to bad handling of a cached pointer

Thanks.

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The following changes since commit 373c3b80e459cb57c34381b928588a3794eb5bbd:

btrfs: don't leak extent_map in btrfs_get_io_geometry() (2019-07-17 17:03:36 +0200)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-5.3-rc1-tag

for you to fetch changes up to a3b46b86ca76d7f9d487e6a0b594fd1984e0796e:

btrfs: fix extent_state leak in btrfs_lock_and_flush_ordered_range (2019-07-26 12:21:22 +0200)

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Naohiro Aota (1):
btrfs: fix extent_state leak in btrfs_lock_and_flush_ordered_range

Nikolay Borisov (1):
btrfs: Fix deadlock caused by missing memory barrier

 fs/btrfs/locking.c      |  9 ++++++---
 fs/btrfs/ordered-data.c | 11 ++++++-----
 2 files changed, 12 insertions(+), 8 deletions(-)