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Subject[GIT PULL] Btrfs fixes for 5.3-rc3

please pull the branch with the following fixes:

* tiny race window during 2 transactions aborting at the same time can
accidentally lead to a commit

* regression fix, possible deadlock during fiemap

* fix for an old bug when incremental send can fail on a file that has
been deduplicated in a special way


The following changes since commit a3b46b86ca76d7f9d487e6a0b594fd1984e0796e:

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

are available in the Git repository at:

git:// for-5.3-rc2-tag

for you to fetch changes up to a6d155d2e363f26290ffd50591169cb96c2a609e:

Btrfs: fix deadlock between fiemap and transaction commits (2019-07-30 18:25:12 +0200)

Filipe Manana (3):
Btrfs: fix incremental send failure after deduplication
Btrfs: fix race leading to fs corruption after transaction abort
Btrfs: fix deadlock between fiemap and transaction commits

fs/btrfs/backref.c | 2 +-
fs/btrfs/send.c | 77 ++++++++++----------------------------------------
fs/btrfs/transaction.c | 32 ++++++++++++++++++---
fs/btrfs/transaction.h | 3 ++
4 files changed, 47 insertions(+), 67 deletions(-)

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