Btrfs progs release 4.4

[David Sterba <dsterba@suse.cz>]

Hi,

btrfs-progs 4.4 have been released.

User visible changes
--------------------

* mkfs.btrfs --data dup

  People asked about duplicating data on a single device for a long time. There
  are no technical obstacles preventing that, so it got enabled with a warning
  about potential dangers when the device will not do the duplicated copies.
  See mkfs.btrfs section 'DUP PROFILES ON A SINGLE DEVICE'.

* support balance filters added/enhanced in linux 4.4

  * usage=min..max	-- enhanced to take range
  * stripes=min..max	-- new, filter by stripes for raid0/10/5/6
  * limit=min..max	-- enhanced to take range

  Due to backward compatibility, the range maximum for 'usage' is not inclusive
  as for the others, to keep the same behaviour as usage=N .

* manual pages enhanced (btrfs, mkfs, mount, filesystem, balance)

* error messages updates, rewordings -- some fstests may break due to that

* added support for free-space-tree implementation of space cache

  this requires kernel 4.5 and is not recommended for non-developers yet

* 'btrfs filesystem usage' works with mixed blockgroups

Other:

* installation to /usr/local -- this has unintentionally changed during
  conversion to autotools in 3.19
* check: fix a false alert where extent record has wrong metadata flag
* improved stability on fuzzed/crafted images when reading sys array in
  superblock
* build: the 'ar' tool is properly deteced during cross-compilation
* debug-tree: option -t understands ids for tree root and chnuk tree
* preparatory work for btrfs-convert rewrite
* sparse, gcc warning fixes
* more memory allocation failure handling
* cleanups ...
* more tests

Bugfixes:

* chunk recovery: fix floating point exception
* chunk recovery: endianity bugfix during rebuild
* mkfs with 64K pages and nodesize reported superblock checksum mismatch
* check: properly reset nlink of multi-linked file


Development cycle for 4.5
-------------------------

There are a few patchsets that did not make it to 4.4 and are currently
at the top of my list.

* feature compatibility of mkfs and kernel (Anand)

* convert rework (Qu) -- more reivew needed, the pending patches are
  in branch foreign/qu/convert-rework

* delete device by id (Anand) -- the kernel support is required, I need
  to look at the patches again

* improved btrfs check progress

There are a few more and I hope I'll get to them eventually. The bi-weekly
stable releases are supposed to be resumed with bugfixes or docs updates.


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

Byongho Lee (6):
      btrfs-progs: get sparse checking working
      btrfs-progs: use NULL instead of 0
      btrfs-progs: make private symbols to static
      btrfs-progs: fix endian bugs in chunk rebuilding
      btrfs-progs: fix endian bug in update_super()
      btrfs-progs: fix using on-disk structure to store in memory data

Chandan Rajendra (1):
      btrfs-progs: ftw_add_entry_size: Round up file size to sectorsize

Christoph Anton Mitterer (1):
      btrfs-progs: document snapshot unaware defrag

David Sterba (79):
      btrfs-progs: mkfs: use correct size for superblock csum and writeout
      btrfs-progs: tests: add 007-mix-nodesize-sectorsize
      btrfs-progs: docs: update raid table in mkfs manpage
      btrfs-progs: tests: add 019-non-skinny-false-alert
      btrfs-progs: tests: enhance 001-basic-profiles with --data DUP
      btrfs-progs: docs: mkfs, implications of DUP on devices
      btrfs-progs: install to /usr/local by default again
      btrfs-progs: update btrfs_read_sys_array to match kernel implementation
      btrfs-progs: cleanup, rename a few variables in btrfs_read_sys_array
      btrfs-progs: add more checks to btrfs_read_sys_array
      btrfs-progs: handle invalid num_stripes in sys_array
      btrfs-progs: verbose error when we find an unexpected item in sys_array
      btrfs-progs: tests: add sys-array-num-stripes-0.raw.xz
      btrfs-progs: show-super: copy implementation of btrfs_read_sys_array
      btrfs-progs: tests: print test type
      btrfs-progs: extend balance args to take min/max limit filter
      btrfs-progs: balance: enhance the limit fiter with range
      btrfs-progs: extend balance args to take min/max usage filter
      btrfs-progs: balance: enhance the usage filter with range
      btrfs-progs: use on-stack buffer in add_symbolic_link
      btrfs-progs: docs, update btrfs(8) manual page
      btrfs-progs: docs, btrfs-mount: unindent descriptions
      btrfs-progs: docs, btrfs-mount: put NOTE tag to new paragraph
      btrfs-progs: docs, btrfs-mount: enhance fatal_erros
      btrfs-progs: docs, enhance the mount option manual page
      btrfs-progs: return errors from get_inode_rec, fail in callers
      btrfs-progs: return errors from clone_inode_rec, fail in callers
      btrfs-progs: handle errors in add_shared_node and fail in the caller
      btrfs-progs: return errors from get_root_rec, fail in callers
      btrfs-progs: handle errors in get_root_backref and fail in the caller
      btrfs-progs: handle errors in get_inode_backref and fail in the caller
      btrfs-progs: catch memory allocation failure in splice_shared_node
      btrfs-progs: catch memory allocation failure from alloc_tree_backref
      btrfs-progs: catch memory allocation failure from alloc_data_backref
      btrfs-progs: handler memory allocation failure in add_extent_rec
      btrfs-progs: catch memory allocation failure in btrfs_split_item
      btrfs-progs: cmd rescue: switch to common error message wrapper
      btrfs-progs: cmd quota: switch to common error message wrapper
      btrfs-progs: cmd balance: switch to common error message wrapper
      btrfs-progs: cmd property: switch to common error message wrapper
      btrfs-progs: cmd qgroup: switch to common error message wrapper
      btrfs-progs: cmd receive: switch to common error message wrapper
      btrfs-progs: cmd send: switch to common error message wrapper
      btrfs-progs: cmd subvolume: switch to common error message wrapper
      btrfs-progs: cmd replace: switch to common error message wrapper
      btrfs-progs: cmd filesystem: switch to common error message wrapper
      btrfs-progs: cmd fi usage: switch to common error message wrapper
      btrfs-progs: cmd property: use correct usage strings
      btrfs-progs: cleanup, move usage help strings closer to the command callbacks
      btrfs-progs: docs, btrfs-mount: enhance file attributes section
      btrfs-progs: docs: rename btrfs-mount to btrfs-man5
      btrfs-progs: docs: sort mount options alphabetically
      btrfs-progs: docs: document new mount option fragment
      btrfs-progs: free-space-tree: minor message adjustments
      btrfs-progs: remove unnecessary errno temp variables
      btrfs-progs: check for negative return value from ioctl
      btrfs-progs: build: fix builds with extra warnings, W=1
      btrfs-progs: add function attributes for the printf-like
      btrfs-porgs: qgroup: rename variable to avoid shadowing
      btrfs-porgs: check: rename variable to avoid shadowing
      btrfs-porgs: fi usage: rename variable to avoid shadowing
      btrfs-progs: tests: add missing prerequisites
      btrfs-progs: docs: enhance btrfs-filesystem manual page
      btrfs-progs: fi usage: support mixed blockgroups
      btrfs-progs: subvol show: handle options by getopt
      btrfs-progs: debug-tree: teach -t option about the chunk and root trees
      btrfs-progs: let test_isdir return the exact error
      btrfs-progs: handle errors from test_isdir
      btrfs-progs: use symbolic name for subvolume inode number in test_issubvolume
      btrfs-progs: let test_issubvolume return the exact error
      btrfs-progs: more verbose errors from test_issubvolume
      btrfs-progs: also check filesystem type in test_issubvolume
      btrfs-progs: receive: don't leak open find handle
      btrfs-progs: move prefixcmp to utils
      btrfs-progs: introduce helper for parsing args without options
      btrfs-progs: subvol show: use clean_args_no_options instead of opencoding
      Btrfs progs v4.4-rc1
      btrfs-progs: debug-tree: tweak tree node checks
      btrfs-progs: docs: update balance manual page

Gabríel Arthúr Pétursson (1):
      btrfs-progs: balance: add stripes filter

Jeff Mahoney (1):
      btrfs-progs: convert: add context and operations struct to allow different file systems

Jeffrey Schiller (1):
      btrfs-progs: docs: fix typo in balance man page

Khem Raj (1):
      btrfsprogs: corrupt-blocks: include limits.h to define PATH_MAX

Liu Bo (1):
      Btrfs-progs: fix typo in parse_range

Mike Gilbert (1):
      btrfs-progs: Use AC_CHECK_TOOL to find AR

Naohiro Aota (2):
      btrfs-progs: check, properly reset nlink of multi-linked file
      btrfs-progs: tests: test multiple-linked file corruption

Neil Horman (1):
      btrfs: only free root_path if it was allocated from the heap

Noah Massey (1):
      btrfs-progs: fix static build

Omar Sandoval (2):
      btrfs-progs: add basic awareness of the free space tree
      btrfs-progs: check the free space tree in btrfsck

Qu Wenruo (7):
      btrfs-progs: chunk-recovery: Fix a float point error
      btrfs-progs: fsck: Fix a false alert where extent record has wrong metadata flag
      btrfs-progs: tests: mkfs, check sectorsize and nodesize combinations
      btrfs-progs: extent-cache: Add comments for search/lookup functions
      btrfs-progs: extent-tree: Add add_merge_cache_extent function
      btrfs-progs: Introduce new members for btrfs_convert_context
      btrfs-progs: Enhance chunk validation check

Zhao Lei (1):
      btrfs-progs: mkfs: allow --data DUP for single device