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Merge tag 'for-5.1-part1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"This contains usual mix of new features, core changes and fixes; full
list below. I'm planning second pull request, with a few more fixes
that arrived recently but too close to merge window, will send it next
week.
New features:
- support zstd compression levels
- new ioctl to unregister a device from the module (ie. reverse of
device scan)
- scrub prints a message to log when it's about to start or finish
Core changes:
- qgroups can now skip part of a tree that does not get updated
during relocation, because this does not affect the quota
accounting, estimated speedup in run time is about 20%
- the compression workspace management had to be enhanced due to zstd
requirements
- various enospc fixes, when there's high fragmentation the
over-reservation can cause ENOSPC that might not happen after a
flush, in such cases try to wait if the situation improves
Fixes:
- various ioctls could overwrite previous return value if
copy_to_user fails, fix this so the original error is reported
- more reclaim vs GFP_KERNEL fixes
- other cleanups and refactoring
- fix a (valid) lockdep warning in a test when device replace is
destroying worker threads
- make qgroup async transaction commit more aggressive, this avoids
some 'quota limit reached' errors if there are not enough data to
trigger transaction in order to flush
- fix deadlock between snapshot deletion and quotas when backref
walking is called from context that already holds the same locks
- fsync fixes:
- fix fsync after succession of renames of different files
- fix fsync after succession of renames and unlink/rmdir"
* tag 'for-5.1-part1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (92 commits)
btrfs: Remove unnecessary casts in btrfs_read_root_item
Btrfs: remove assertion when searching for a key in a node/leaf
Btrfs: add missing error handling after doing leaf/node binary search
btrfs: drop the lock on error in btrfs_dev_replace_cancel
btrfs: ensure that a DUP or RAID1 block group has exactly two stripes
btrfs: init csum_list before possible free
Btrfs: remove no longer needed range length checks for deduplication
Btrfs: fix fsync after succession of renames and unlink/rmdir
Btrfs: fix fsync after succession of renames of different files
btrfs: honor path->skip_locking in backref code
btrfs: qgroup: Make qgroup async transaction commit more aggressive
btrfs: qgroup: Move reserved data accounting from btrfs_delayed_ref_head to btrfs_qgroup_extent_record
btrfs: scrub: remove unused nocow worker pointer
btrfs: scrub: add assertions for worker pointers
btrfs: scrub: convert scrub_workers_refcnt to refcount_t
btrfs: scrub: add scrub_lock lockdep check in scrub_workers_get
btrfs: scrub: fix circular locking dependency warning
btrfs: fix comment its device list mutex not volume lock
btrfs: extent_io: Kill the forward declaration of flush_write_bio
btrfs: Fix grossly misleading argument names in extent io search
...