Merge tag 'for-4.18-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba: "User visible features: - added support for the ioctl FS_IOC_FSGETXATTR, per-inode flags, successor of GET/SETFLAGS; now supports only existing flags: append, immutable, noatime, nodump, sync - 3 new unprivileged ioctls to allow users to enumerate subvolumes - dedupe syscall implementation does not restrict the range to 16MiB, though it still splits the whole range to 16MiB chunks - on user demand, rmdir() is able to delete an empty subvolume, export the capability in sysfs - fix inode number types in tracepoints, other cleanups - send: improved speed when dealing with a large removed directory, measurements show decrease from 2000 minutes to 2 minutes on a directory with 2 million entries - pre-commit check of superblock to detect a mysterious in-memory corruption - log message updates Other changes: - orphan inode cleanup improved, does no keep long-standing reservations that could lead up to early ENOSPC in some cases - slight improvement of handling snapshotted NOCOW files by avoiding some unnecessary tree searches - avoid OOM when dealing with many unmergeable small extents at flush time - speedup conversion of free space tree representations from/to bitmap/tree - code refactoring, deletion, cleanups: + delayed refs + delayed iput + redundant argument removals + memory barrier cleanups + remove a redundant mutex supposedly excluding several ioctls to run in parallel - new tracepoints for blockgroup manipulation - more sanity checks of compressed headers" * tag 'for-4.18-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (183 commits) btrfs: Add unprivileged version of ino_lookup ioctl btrfs: Add unprivileged ioctl which returns subvolume's ROOT_REF btrfs: Add unprivileged ioctl which returns subvolume information Btrfs: clean up error handling in btrfs_truncate() btrfs: Factor out write portion of btrfs_get_blocks_direct btrfs: Factor out read portion of btrfs_get_blocks_direct btrfs: return ENOMEM if path allocation fails in btrfs_cross_ref_exist btrfs: raid56: Remove VLA usage btrfs: return error value if create_io_em failed in cow_file_range btrfs: drop useless member qgroup_reserved of btrfs_pending_snapshot btrfs: drop unused parameter qgroup_reserved btrfs: balance dirty metadata pages in btrfs_finish_ordered_io btrfs: lift some btrfs_cross_ref_exist checks in nocow path btrfs: Remove fs_info argument from btrfs_uuid_tree_rem btrfs: Remove fs_info argument from btrfs_uuid_tree_add Btrfs: remove unused check of skip_locking Btrfs: remove always true check in unlock_up Btrfs: grab write lock directly if write_lock_level is the max level Btrfs: move get root out of btrfs_search_slot to a helper Btrfs: use more straightforward extent_buffer_uptodate check ...
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