Btrfs progs release 5.6.1

[David Sterba <dsterba@suse.com>]

Hi,

btrfs-progs version 5.6.1 have been released.

The hilight of this minor release is the warning about multiple block groups
profiles, printed by several commands:

  WARNING: Multiple block group profiles detected, see 'man btrfs(5)'.
  WARNING:   Data: single, raid1

And the summary of 'fi usage' prints:

  Multiple profiles:                 yes      (data)

This might need some fine tuning, or more to be put to documenation but
I think the current status is ok so let's get it out to get feedback
eventually.

Changelog:

  * print warning when multiple block group profiles exist, update 'fi usage'
    summary, add docs to maual page explaining the situation
  * build: optional support for libgcrypt or libsodium, providing hash
    implementations
  * other:
    * fixed, updated and new tests
    * cleanups
    * updated docs

No change since rc1.

Tarballs: https://www.kernel.org/pub/linux/kernel/people/kdave/btrfs-progs/
Git: git://git.kernel.org/pub/scm/linux/kernel/git/kdave/btrfs-progs.git

Shortlog:

Alexandru Ungureanu (2):
      btrfs-progs: docs: improved asciidoc syntax to fix rendering issues
      btrfs-progs: docs: add example on deleting a subvolume

Anand Jain (1):
      btrfs-progs: tests: drop trailing slash from TEST_TOP path

David Sterba (19):
      btrfs-progs: remove obsolete fs_info::fs_mutex
      btrfs-progs: move backref.[ch] to kernel-shared/
      btrfs-progs: add more hash implementation providers
      btrfs-progs: docs: clarify mount options
      btrfs-progs: tests: enhance README
      btrfs-progs: tests: add coverage for multiple profiles warning
      btrfs-progs: remove unused function btrfs_check_for_mixed_profiles_by_path
      btrfs-progs: rename helpers for multiple block group checks
      btrfs-progs: unexport btrfs_get_string_for_multiple_profiles
      btrfs-progs: simplify string dump of block group profiles
      btrfs-progs: simplify string separator checks in sprint_profiles
      btrfs-progs: reorder single to be first in multiple bg list
      btrfs-progs: adjust multiple block group warning format
      btrfs-progs: fix detection of multiple profiles when generating the strings
      btrfs-progs: fi usage: list multiple profiles type
      btrfs-progs: docs: update section about multiple block group profiles
      btrfs-progs: tests: clean loop devices created by tests
      btrfs-progs: update CHANGES for 5.6.1
      Btrfs progs v5.6.1

Goffredo Baroncelli (5):
      btrfs-progs: add code for checking mixed profile function
      btrfs-progs: add mixed profiles check to some btrfs sub-commands.
      btrfs-progs: fi usage: add check for multiple profiles
      btrfs-progs: add further checks for multiple profiles
      btrfs-progs: docs: add section about multiple profiles

Marcos Paulo de Souza (1):
      btrfs-progs: tests: mkfs/018, fix check for truncate command failure

Qu Wenruo (6):
      btrfs-progs: remove extent_buffer::tree member
      btrfs-progs: do proper error handling in add_cache_extent()
      btrfs-progs: fix bad kernel header non-flat include case
      btrfs-progs: tests: filter output for run_check_stdout
      btrfs-progs: tests: introduce expand_command() to inject aruguments more accurately
      btrfs-progs: remove the duplicated @level parameter for btrfs_bin_search()