platform/upstream/btrfs-progs.git
7 years agobtrfs-progs: update CHANGES for v4.10.2
David Sterba [Fri, 31 Mar 2017 12:20:21 +0000 (14:20 +0200)]
btrfs-progs: update CHANGES for v4.10.2

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: fix missing __error symbol in libbtrfs.so.0
Sergei Trofimovich [Mon, 27 Mar 2017 21:07:20 +0000 (22:07 +0100)]
btrfs-progs: fix missing __error symbol in libbtrfs.so.0

The easiest way to reproduce the error is to try to build
btrfs-progs with
    $ make LDFLAGS=-Wl,--no-undefined

    btrfs-list.o: In function `lookup_ino_path':
    btrfs-list.c:(.text+0x7d2): undefined reference to `__error'

Noticed by Denis Descheneaux when snapper tool
stopped working after upgrade to btrfs-progs-4.10.

As soname didn't change in 4.9 -> 4.10 release
I assume it's just an object file omission
in library depends and not the API/ABI change
of the library error printing.

Cc: linux-btrfs@vger.kernel.org
Cc: Mike Gilbert <floppym@gentoo.org>
Reported-by: Denis Descheneaux
Bug: https://bugs.gentoo.org/show_bug.cgi?id=613890

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: Add SHARED_DATA_REF test image for check lowmem mode
Qu Wenruo [Fri, 17 Mar 2017 02:06:34 +0000 (10:06 +0800)]
btrfs-progs: tests: Add SHARED_DATA_REF test image for check lowmem mode

Introduce a new image, which contains external SHARED_DATA_REF items to
trigger a lowmem mode false alert.

The image only contains external SHARED_DATA_REF and no inlined data
backref.

Before the image, we only have inlined shared data ref, which is not
enough to trigger lowmem mode false alert.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: lowmem, fix false alert about backref lost for SHARED_DATA_REF
Qu Wenruo [Fri, 17 Mar 2017 02:06:33 +0000 (10:06 +0800)]
btrfs-progs: check: lowmem, fix false alert about backref lost for SHARED_DATA_REF

In check_extent_data_item(), after checking extent item of one data
extent, we search inlined data backref, then EXTENT_DATA_REF_KEY.

But we didn't search SHARED_DATA_REF, so if the backref is
SHARED_DATA_REF, then we will raise a false alert about backref lost.

Fix by also checking SHARED_DATA_REF_KEY in check_extent_data_item().

Reported-by: Chris Murphy <chris@colorremedies.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: convert: Add missing return for HOLE mode when checking convert image
Qu Wenruo [Tue, 21 Mar 2017 01:00:55 +0000 (09:00 +0800)]
btrfs-progs: convert: Add missing return for HOLE mode when checking convert image

In check_convert_image(), for normal HOLE case, if the file extents are
smaller than image size, we set ret to -EINVAL and print error message.

But forget to return.

This patch adds the missing return to fix it.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: add prefix to message helpers
David Sterba [Mon, 27 Mar 2017 12:14:20 +0000 (14:14 +0200)]
btrfs-progs: add prefix to message helpers

The implementation of message helpers use very generic names so we
should at least use a prefix, as they're going to be usied from within
the library. The build fix will follow.

Reported-by: Mike Gilbert <floppym@gentoo.org>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: Cleanup kernel-shared dir when execute make clean
Qu Wenruo [Mon, 27 Mar 2017 00:52:09 +0000 (08:52 +0800)]
btrfs-progs: Cleanup kernel-shared dir when execute make clean

Reported-by: Chris <coderight@gmail.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: library-test: add all exported headers
David Sterba [Mon, 27 Mar 2017 11:55:01 +0000 (13:55 +0200)]
btrfs-progs: library-test: add all exported headers

Explicitly include all headers exported to library, as a light build
check that the files are really present.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agoBtrfs progs v4.10.1
David Sterba [Fri, 17 Mar 2017 13:11:22 +0000 (14:11 +0100)]
Btrfs progs v4.10.1

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: update CHANGES for v4.10.1
David Sterba [Thu, 16 Mar 2017 16:11:20 +0000 (17:11 +0100)]
btrfs-progs: update CHANGES for v4.10.1

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: convert: Make btrfs_reserved_ranges const
Qu Wenruo [Thu, 16 Mar 2017 03:18:31 +0000 (11:18 +0800)]
btrfs-progs: convert: Make btrfs_reserved_ranges const

Since btrfs_reserved_ranges array is just used to store btrfs reserved
ranges, no one will nor should modify them at run time, make them static
and const will be better.

This also eliminates the use of immediate number 3.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[ definition stays in source-fs.c ]
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: kerncompat: Fix re-definition of __bitwise
Qu Wenruo [Thu, 16 Mar 2017 03:18:30 +0000 (11:18 +0800)]
btrfs-progs: kerncompat: Fix re-definition of __bitwise

In latest linux api headers, __bitwise is already defined in
/usr/include/linux/types.h.

So kerncompat.h will re-define __bitwise, and cause gcc warning.

Fix it by checking if __bitwise is already define.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: dump-tree: Also output log root tree
Qu Wenruo [Tue, 14 Mar 2017 05:35:18 +0000 (13:35 +0800)]
btrfs-progs: dump-tree: Also output log root tree

In btrfs-dump-tree, we output any existing log tree, however we don't
output the log root tree, which records all root items for log trees.

This makes it confusing for any one who want to know where the log tree
comes from.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: dump-tree: Fix duplicated output when using -t option
Qu Wenruo [Tue, 14 Mar 2017 05:28:27 +0000 (13:28 +0800)]
btrfs-progs: dump-tree: Fix duplicated output when using -t option

When using -t option to output trees not in root tree (chunk/root/log
root), then we output the tree twice.

Fix it

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: misc/019, use fssum
David Sterba [Wed, 15 Mar 2017 11:28:16 +0000 (12:28 +0100)]
btrfs-progs: tests: misc/019, use fssum

The fssum utility is now ready to use, test still passes.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: fssum, switch from MD5 to SHA256
David Sterba [Wed, 15 Mar 2017 11:21:50 +0000 (12:21 +0100)]
btrfs-progs: tests: fssum, switch from MD5 to SHA256

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: add SHA256
David Sterba [Tue, 14 Mar 2017 18:30:47 +0000 (19:30 +0100)]
btrfs-progs: tests: add SHA256

In order to drop dependency on SSL library to compute MD5 in fssum,
we'll use the reference implementation from RFC 6234.

The checksum is not in a cryptographically sensitive context, but we're
going to skip MD5 and SHA-1 anyway.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: fssum, update includes
David Sterba [Tue, 14 Mar 2017 18:09:29 +0000 (19:09 +0100)]
btrfs-progs: tests: fssum, update includes

Remove unneeded and add headers that define time_te and int types.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: fssum, drop *_SOURCE defines, already provided via config.h
David Sterba [Tue, 14 Mar 2017 18:04:51 +0000 (19:04 +0100)]
btrfs-progs: tests: fssum, drop *_SOURCE defines, already provided via config.h

In file included from /usr/include/stdio.h:27:0,
                 from kerncompat.h:22,
                 from tests/fssum.c:25:
/usr/include/features.h:148:3: warning: #warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE" [-Wcpp]
 # warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
   ^~~~~~~

We've solved that long time ago and config.h now provides the macros.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: fssum, use our endianity helper
David Sterba [Tue, 14 Mar 2017 18:01:35 +0000 (19:01 +0100)]
btrfs-progs: tests: fssum, use our endianity helper

The function htonll is not provided by the standard library and we can
replace it by our cpu-to-XX helpers. This switches the endianity of the
checksummed value to LE, but this is not a problem.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: fssum, drop unnecessray build defines
David Sterba [Tue, 14 Mar 2017 17:56:22 +0000 (18:56 +0100)]
btrfs-progs: tests: fssum, drop unnecessray build defines

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: add fssum utility
David Sterba [Tue, 14 Mar 2017 17:53:29 +0000 (18:53 +0100)]
btrfs-progs: tests: add fssum utility

Copy from fstests, originally from
git://git.kernel.org/pub/scm/linux/kernel/git/arne/far-progs.git

Needs libcrypto to link but this check is now missing in configure.

Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: cleanup use of IMAGE and replace by helpers
David Sterba [Mon, 13 Mar 2017 17:07:28 +0000 (18:07 +0100)]
btrfs-progs: tests: cleanup use of IMAGE and replace by helpers

Nearly each use of IMAGE can be replaced by common helpers as there are
no specific requirements on the testing filesystem. There are still a
few left that need to be evaluated and converted eventually.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: mkfs/002 and 003: use TEST_DEV instead of IMAGE
David Sterba [Mon, 13 Mar 2017 16:52:20 +0000 (17:52 +0100)]
btrfs-progs: tests: mkfs/002 and 003: use TEST_DEV instead of IMAGE

As we don't know what's the TEST_DEV like, use the explicit mkfs limit.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: use TEST_DEV in cli-tests
David Sterba [Mon, 13 Mar 2017 16:48:55 +0000 (17:48 +0100)]
btrfs-progs: tests: use TEST_DEV in cli-tests

IMAGE points to the fallback image, tests should use TEST_DEV.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: docs: add preliminary do's & dont's for tests
David Sterba [Mon, 13 Mar 2017 16:43:05 +0000 (17:43 +0100)]
btrfs-progs: docs: add preliminary do's & dont's for tests

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: do test build of library-test.static
David Sterba [Mon, 13 Mar 2017 16:15:24 +0000 (17:15 +0100)]
btrfs-progs: tests: do test build of library-test.static

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: library-test: update test to build outside of topdir
David Sterba [Mon, 13 Mar 2017 16:01:28 +0000 (17:01 +0100)]
btrfs-progs: library-test: update test to build outside of topdir

We need to build outside of the topdir so we can use the "btrfs/" prefix
for includes and not accidentally include other files.

Make magic is simple:
- build dependencies inside TOPDIR
- build inside temporary directory, link back to TOPDIR
- library-test.o not built anymore obviously

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: library-test: update header inclusion
David Sterba [Mon, 13 Mar 2017 15:52:34 +0000 (16:52 +0100)]
btrfs-progs: library-test: update header inclusion

The library-test is supposed to compile and link as an external
program, so we should update the way the headers are included.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: library: distribute sizes.h, fix build
David Sterba [Mon, 13 Mar 2017 15:08:51 +0000 (16:08 +0100)]
btrfs-progs: library: distribute sizes.h, fix build

The patch "btrfs-progs: Introduce kernel sizes to cleanup large
intermediate number" (a2203246ae483d09) was taken from kernel but not
properly ported so the build breaks because the header linux/sizes.h is
not exported.

The build tests of library do not cover the case when the macro
BTRFS_FLAT_INCLUDES is not defined (ie. an external build).

Reported-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: add missing limits headers
Baruch Siach [Sun, 12 Mar 2017 17:46:52 +0000 (19:46 +0200)]
btrfs-progs: add missing limits headers

Build under musl libc fails because of missing PATH_MAX and XATTR_NAME_MAX
macro declarations. Add the required headers.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
7 years agobtrfs-progs: convert: Rework rollback
Qu Wenruo [Thu, 23 Feb 2017 08:21:14 +0000 (16:21 +0800)]
btrfs-progs: convert: Rework rollback

Rework rollback to a more easy to understand way.

New convert behavior makes us to have a more flex chunk layout, which
only data chunk containing old fs data will be at the same physical
location, while new chunks (data/meta/sys) can be mapped anywhere else.

This behavior makes old rollback behavior can't handle it.
As old behavior assumes all data/meta is mapped in a large chunk, which is
mapped 1:1 on disk.

So rework rollback to handle new convert behavior, enhance the check by
only checking all file extents of convert image, only to check if these
file extents and therir chunks are mapped 1:1.

This new rollback check behavior can handle both new and old convert
behavior, as the new behavior is a superset of old behavior.

Further more, introduce a simple rollback mechanisim:
1) Read reserved data (offset = file offset) from convert image
2) Write reserved data into disk (offset = physical offset)

Since old fs image is a valid fs, and we only need to rollback
superblocks (btrfs reserved ranges), then we just read out data in
reserved range, and write it back.

Due to the fact that all other file extents of converted image is mapped
1:1 on disk, we put the missing piece back, then the fs is as good as
old one.

Then what we do in btrfs is just another dream.

With this new rollback mechanisim, we can open btrfs read-only, so we
won't cause any damage to current btrfs, until the final piece (0~1M,
containing 1st super block) is put back.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[ port to v4.10 ]
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: convert: Introduce function to check if convert image is able to be...
Qu Wenruo [Thu, 23 Feb 2017 07:46:46 +0000 (15:46 +0800)]
btrfs-progs: convert: Introduce function to check if convert image is able to be rolled back

Introduce a function, check_convert_image() to check if that image is
rollback-able.

This means all file extents except one of the btrfs reserved ranges, must
be mapped 1:1 on disk.

1:1 mapped file extents must match the following conditions:

1) Their file_offset(key.offset) matches its disk_bytenr
2) The corresponding chunk must be mapped 1:1 on disk
   That's to say, it's a SINGLE chunk, and chunk logical matches with
   stripe physical.

Above 2 conditions ensured that file extent lies the exactly the same
position as in the old filesystem.

For data in reserved ranges of btrfs, they are relocated to new places,
and in that case, we use btrfs_read_file() to read out the content for
later rollback use.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
7 years agobtrfs-progs: convert: Introduce function to read out btrfs reserved range
Qu Wenruo [Thu, 23 Feb 2017 07:17:16 +0000 (15:17 +0800)]
btrfs-progs: convert: Introduce function to read out btrfs reserved range

Introduce a new function, read_reserved_ranges(), to allow later
rollback to use these data to do rollback.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
7 years agobtrfs-progs: file: Introduce function to read out file content
Qu Wenruo [Thu, 23 Feb 2017 05:53:25 +0000 (13:53 +0800)]
btrfs-progs: file: Introduce function to read out file content

Introduce a new function, btrfs_read_file(), to read out data of a file
inode.

This function will iterate through EXTENT_DATA items and handle
inline/prealloc/hole file extents.

Compression is not supported yet.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: convert: Use reserved ranges array to cleanup open code
Qu Wenruo [Thu, 23 Feb 2017 02:22:22 +0000 (10:22 +0800)]
btrfs-progs: convert: Use reserved ranges array to cleanup open code

Since we have reserved ranges array now, we can use them to skip all
these open codes.

And add some comment and asciidoc art for related part.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[ port to v4.10 ]
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: convert: Introduce simple range structure for convert reserved ranges
Qu Wenruo [Wed, 22 Feb 2017 08:46:18 +0000 (16:46 +0800)]
btrfs-progs: convert: Introduce simple range structure for convert reserved ranges

Introduce a new strucutre, simple_range, to present one contingous
range.

Also, use such structure to define btrfs_reserved_ranges(), which
convert and rollback will use.

Suggested-by: David Sterba <dsterba@suse.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[ split hunks to new file structure ]
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: convert: Add comment for the overall convert design
Qu Wenruo [Wed, 22 Feb 2017 07:50:32 +0000 (15:50 +0800)]
btrfs-progs: convert: Add comment for the overall convert design

Convert is now a little complex due to that fact we need to separate
metadata and data chunks for different profiles.

Add a comment with ascii art explaining the whole design and point
out the really complex part, so any newcomers interested in convert can
get a quick overview of it before digging into the hard to read code.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[ wording and formatting adjustments ]
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: port 019-receive-clones-on-munted-subvol
David Sterba [Wed, 8 Mar 2017 14:51:57 +0000 (15:51 +0100)]
btrfs-progs: tests: port 019-receive-clones-on-munted-subvol

Port from fstests.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: correctly receive clones to mounted subvol
Benedikt Morbach [Wed, 22 Feb 2017 23:07:35 +0000 (00:07 +0100)]
btrfs-progs: tests: correctly receive clones to mounted subvol

clone needs to resolve the paths of the involved subvolumes in the target
fs from their UUIDs. When doing so it might need to strip the prefix
that is mounted as the root of the fs from those paths.

It didn't do so correctly when processing the source of "clone" commands

This is a regression test for
    btrfs-progs: receive: handle root subvol path in clone

Signed-off-by: Benedikt Morbach <benedikt.morbach@googlemail.com>
[ copied the fstests version, will be updated later ]
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: receive: handle root subvol path in clone
Benedikt Morbach [Wed, 22 Feb 2017 22:56:37 +0000 (23:56 +0100)]
btrfs-progs: receive: handle root subvol path in clone

testcase:
    # ro subvol /src/parent
    # rw subvol /src/foo
    clone /src/parent/file /src/foo/file
    subvol snapshot -r /src/foo /src/foo.snap

    # generates a "clone parent/file -> foo.snap/file" send command
    send -p /src/parent /src/foo.snap

    # target fs:
    #    dest/
    #        |--- parent/...
    # mounted with -o subvol=dest, such that "parent" is at <target>/parent
    receive <target>

result:
    ERROR: cannot open dest/parent/file: No such file or directory

expected:
    "dest/" get's stripped from the clone source path to get the actual
    path in the target fs, if reachable from the mount point/chroot.

    This is exactly what process_snapshot does, which gets called on
    _every_ incremental receive and I'm quite certain is correct in
    doing so

Signed-off-by: Benedikt Morbach <benedikt.morbach@googlemail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: receive: better error reporting for snapshots
Benedikt Morbach [Wed, 22 Feb 2017 22:56:36 +0000 (23:56 +0100)]
btrfs-progs: receive: better error reporting for snapshots

Two fixes:

1)

Check that the parent subvol actually is reachable via our root path.
The previous code wouldn't catch

    parent subvol: foo/bar
    root path:     bar   (i.e. mounted with -o subvol=bar)

where the parent isn't reachable from the root path.
(but the original "strstr(parent, root_path) == NULL" check still doesn't hold)

Also check for the slash after "root_path", i.e. throw an error on

    parent subvol: foobar
    root path:     foo

2)

If the parent subvol is the one that is mounted we obviously can't
receive into it, as it has to be read-only by definition.

We'd get a rather cryptic:

    At subvol /tmp/test/dest.snap
    At snapshot dest.snap
    ERROR: creating snapshot / -> dest.snap failed: Invalid cross-device link

(not sure what it says if "/" isn't even a btrfs)

But with this we get

    At subvol /tmp/test/dest.snap
    At snapshot dest.snap
    ERROR: creating snapshot . -> dest.snap failed: Read-only file system

which is both more helpful and more correct.

Signed-off-by: Benedikt Morbach <benedikt.morbach@googlemail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agoBtrfs progs v4.10
David Sterba [Wed, 8 Mar 2017 13:23:24 +0000 (14:23 +0100)]
Btrfs progs v4.10

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: update CHANGES for v4.10
David Sterba [Thu, 2 Mar 2017 13:36:25 +0000 (14:36 +0100)]
btrfs-progs: update CHANGES for v4.10

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: report I/O errors when closing the filesystem
Omar Sandoval [Fri, 3 Mar 2017 17:02:14 +0000 (09:02 -0800)]
btrfs-progs: report I/O errors when closing the filesystem

If the final fsync() on the Btrfs device fails, we just swallow the
error and don't alert the user in any way. This was uncovered by xfstest
generic/405, which checks that mkfs fails when it encounters EIO.

Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: use dd in 025-file-extents for creating files
David Sterba [Wed, 1 Mar 2017 16:16:46 +0000 (17:16 +0100)]
btrfs-progs: tests: use dd in 025-file-extents for creating files

Drop the dependency on xfs_io as it's not a standard tool, though it
provides convenience. We use a simple write here so dd can manage.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: fix permissions of temporary files in 025-file-extents
David Sterba [Wed, 1 Mar 2017 16:10:44 +0000 (17:10 +0100)]
btrfs-progs: tests: fix permissions of temporary files in 025-file-extents

If the tests are started from non-root user, the fallocate and xfs_io
fail. Use the root helper as a workaround, we'd should fix the perms
instead.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: enhance return values of walk_down_tree_v2
Su Yue [Tue, 21 Feb 2017 08:34:38 +0000 (16:34 +0800)]
btrfs-progs: check: enhance return values of walk_down_tree_v2

In lowmem mode, 'walk_down_tree_v2' returns negative values wheather
the error is fatal or not. It causes the loop where 'walk_down_tree_v2'
is to break even the error is tolerated and then subsequent nodes process
will be skipped.

Fix it by redefining meanings of values 'walk_down_tree_v2' returns.
Do a similar fix for 'process_one_leaf_v2'.

Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: Fix lowmem mode override to allow it skip repair work
Lu Fengqi [Tue, 21 Feb 2017 08:34:37 +0000 (16:34 +0800)]
btrfs-progs: check: Fix lowmem mode override to allow it skip repair work

Current common.local doesn't handle lowmem mode well.
It passes "--mode=lowmem" alone with "--repair", making it unable to
check lowmem mode.

It's caused by the following bugs:

1) Wrong variable in test/common.local
   We should check TEST_ARGS_CHECK, not TEST_CHECK, which is not defined
   so we never return 1.

2) Wrong parameter passed to _cmd_spec() in test/common
   This prevents us from grepping the correct parameters.

Fix it.

Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: Add new test case for file extent false alerts
Qu Wenruo [Tue, 21 Feb 2017 08:34:36 +0000 (16:34 +0800)]
btrfs-progs: tests: Add new test case for file extent false alerts

Lowmem mode exposed several false alerts, all related to file extents
check.

1) Partly written prealloc extent
   Cause lowmem mode to report missing csum or prealloc extent should
   not have csum

2) Compressed inline extent
   Cause lowmem mode to find mismatch on inline len and item len.
   While no error message is output but exit silently.

Reported-by: Chris Murphy <chris@colorremedies.com>
Reported-by: Christoph Anton Mitterer <calestyo@scientia.net>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: Make fsck-test/013 compatible with lowmem mode
Qu Wenruo [Tue, 21 Feb 2017 08:34:35 +0000 (16:34 +0800)]
btrfs-progs: tests: Make fsck-test/013 compatible with lowmem mode

fsck-tests/013-extent-tree-rebuild uses "--init-extent-tree", which
implies "--repair".

But the test script doesn't specify "--repair" for lowmem mode test to
detect it.

Add it so lowmem mode test can be happy with it.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: Add test image for lowmem mode block group false alert
Qu Wenruo [Tue, 21 Feb 2017 08:34:34 +0000 (16:34 +0800)]
btrfs-progs: tests: Add test image for lowmem mode block group false alert

Add a minimal image which can reproduce the block group used space
false alert for lowmem mode fsck.

Reported-by: Christoph Anton Mitterer <calestyo@scientia.net>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: Move fsck-tests/015 to fuzz tests
Qu Wenruo [Tue, 21 Feb 2017 08:34:33 +0000 (16:34 +0800)]
btrfs-progs: tests: Move fsck-tests/015 to fuzz tests

The test case fsck-tests/015-check-bad-memory-access can't be repair by
btrfs check, and it's a fortunate bug makes original mode to forget the
error code from extent tree, making original mode pass it.

So fuzz-tests is more suitable for it.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: lowmem: Fix silent error if first inode item missing
Qu Wenruo [Tue, 21 Feb 2017 08:34:32 +0000 (16:34 +0800)]
btrfs-progs: check: lowmem: Fix silent error if first inode item missing

If first inode item is missing, lowmem check will detect it but does not
output any error message.

Add error message for it.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: lowmem: Fix false alert on inline compressed extent
Qu Wenruo [Tue, 21 Feb 2017 08:34:31 +0000 (16:34 +0800)]
btrfs-progs: check: lowmem: Fix false alert on inline compressed extent

Old lowmem check doesn't check if the inline extent is compressed and
always checks extent numbytes against inline item size.

And when it finds the extent numbytes mismatch with inline item size it
doesn't output any error message, just return error silently, making it
quite hard to debug.

Fix it by only checking extent numbytes against inline item size when
the extent is not compressed, and output error message.

Reported-by: Christoph Anton Mitterer <calestyo@scientia.net>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: lowmem: Fix extent item size false alert
Qu Wenruo [Tue, 21 Feb 2017 08:34:30 +0000 (16:34 +0800)]
btrfs-progs: check: lowmem: Fix extent item size false alert

If one extent item has no inline ref, btrfs lowmem mode check can give
false alert without outputting any error message.

The problem is lowmem mode always assumes that extent item has inline
refs, and when it encounters such case it flags the extent item has
wrong size, but doesn't output the error message.

Although we already have such image submitted, at the commit time due to
another bug in cmds-check return value, it doesn't detect it until that
bug is fixed.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: lowmem: Fix false alert in checking data extent csums
Qu Wenruo [Tue, 21 Feb 2017 08:34:29 +0000 (16:34 +0800)]
btrfs-progs: check: lowmem: Fix false alert in checking data extent csums

Btrfs lowmem check can report false csum error like:
ERROR: root 5 EXTENT_DATA[257 0] datasum missing
ERROR: root 5 EXTENT_DATA[257 4096] prealloc shouldn't have datasum

This is because lowmem check code always compare the found csum size
with the whole extent which data extents points to.

Normally it's OK, but when prealloc extent is written, or reflink is
done, data extent can points to part of a larger extent, making the csum
check wrong.

To fix it, the csum check part is modified to handle plain and
compressed extents in different ways:

1) Plain extent
   Only search csums for the range it refers to.
   So the search range is from (disk_bytenr + extent_offset) and search
   length is (extent_num_bytes)

2) Compressed extent
   Search the whole extent.
   Search range is from (disk_bytner) and search length is
   (disk_num_bytes)

Reported-by: Chris Murphy <chris@colorremedies.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: Output verbose error when fsck found a bug in any tree
Qu Wenruo [Tue, 21 Feb 2017 08:34:28 +0000 (16:34 +0800)]
btrfs-progs: check: Output verbose error when fsck found a bug in any tree

Although we output error like "errors found in extent allocation tree or
chunk allocation", but we lacks such output for other trees, but leaving
the final "found error is %d" to catch the last return value(and
sometime it's cleared)

This patch adds extra error message for top level error path, and modify
the last "found error is %d" to "error(s) found" or "no error found".

Cc: Christoph Anton Mitterer <calestyo@scientia.net>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: lowmem: Fix several bugs related to afterward search
Qu Wenruo [Tue, 21 Feb 2017 08:34:27 +0000 (16:34 +0800)]
btrfs-progs: check: lowmem: Fix several bugs related to afterward search

Since btrfs_search_slot() can point to the slot which is beyond the
leaves' capacity, we should pay extra attention when doing afterward
search.

While for lowmem check, several places uses afterward search:
1) Block group item used space check
2) Device item used space check
3) Data extent backref check.

In the following case for block group item check, btrfs lowmem mode
check will skip the block group and report false alert:

leaf 29405184 items 37 free space 1273 generation 11 owner 2
...
        item 36 key (77594624 EXTENT_ITEM 2097152)
                extent refs 1 gen 8 flags DATA
                extent data backref root 5 objectid 265 offset 0 count 1
leaf 29409280 items 43 free space 670 generation 11 owner 2
        item 0 key (96468992 EXTENT_ITEM 2097152)
                extent refs 1 gen 8 flags DATA
                extent data backref root 5 objectid 274 offset 0 count 1
        item 1 key (96468992 BLOCK_GROUP_ITEM 33554432)
                block group used 2265088 chunk_objectid 256 flags DATA

When checking block group item, we will search key (96468992 0 0) to
start from the first item in the block group.

While search_slot() will point to leaf 29405184, slot 37 which is beyond
leaf capacity.

And when reading key from slot 37, uninitialized data can be read out
and cause us to exit block group item check, leading to false alert.

Fix it by checking path.slot[0] before reading out the key.

Reported-by: Christoph Anton Mitterer <calestyo@scientia.net>
Reported-by: Chris Murphy <chris@colorremedies.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: docs: fix many typos, plus three edits for clarity
Nicholas D Steeves [Tue, 21 Feb 2017 23:14:38 +0000 (18:14 -0500)]
btrfs-progs: docs: fix many typos, plus three edits for clarity

Signed-off-by: Nicholas D Steeves <nsteeves@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: send-dump: add missing newlines
Benedikt Morbach [Wed, 22 Feb 2017 21:32:46 +0000 (22:32 +0100)]
btrfs-progs: send-dump: add missing newlines

make sure to include newlines after commands that have only one
argument, such as 'unlink' or 'mkfile'

changes

    unlink          ./baz.0/file_autimes          ./baz.0/                        atime=2017-02-22T11:59:16+0100 mtime=2017-02-22T11:59:16+0100 ctime=2017-02-22T11:59:16+0100
    truncate        ./baz.0/file_a                  size=131072
    chmod           ./baz.0/file_a                  mode=644
    utimes          ./baz.0/file_a                  atime=2017-02-22T11:59:16+0100 mtime=2017-02-22T11:59:16+0100 ctime=2017-02-22T11:59:16+0100
    mkfile          ./baz.0/o258-11-0rename          ./baz.0/o258-11-0               dest=./baz.0/file_b
    utimes          ./baz.0/                        atime=2017-02-22T11:59:16+0100 mtime=2017-02-22T11:59:16+0100 ctime=2017-02-22T11:59:16+0100

to

    unlink          ./baz.0/file_a
    utimes          ./baz.0/                        atime=2017-02-22T11:59:16+0100 mtime=2017-02-22T11:59:16+0100 ctime=2017-02-22T11:59:16+0100
    truncate        ./baz.0/file_a                  size=131072
    chmod           ./baz.0/file_a                  mode=644
    utimes          ./baz.0/file_a                  atime=2017-02-22T11:59:16+0100 mtime=2017-02-22T11:59:16+0100 ctime=2017-02-22T11:59:16+0100
    mkfile          ./baz.0/o258-11-0
    rename          ./baz.0/o258-11-0               dest=./baz.0/file_b
    utimes          ./baz.0/                        atime=2017-02-22T11:59:16+0100 mtime=2017-02-22T11:59:16+0100 ctime=2017-02-22T11:59:16+0100

Signed-off-by: Benedikt Morbach <benedikt.morbach@googlemail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: docs: fix typo in btrfs-quota
Joey Sabey [Wed, 22 Feb 2017 09:08:17 +0000 (09:08 +0000)]
btrfs-progs: docs: fix typo in btrfs-quota

qgruops -> qgroups

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: docs: fix typo in btrfs-quota
Joey Sabey [Wed, 22 Feb 2017 09:04:19 +0000 (09:04 +0000)]
btrfs-progs: docs: fix typo in btrfs-quota

reinstall ation -> reinstallation

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: tests: fix library-test rules and deps
David Sterba [Mon, 20 Feb 2017 13:58:57 +0000 (14:58 +0100)]
btrfs-progs: tests: fix library-test rules and deps

The symbol __error was undefined and the rule did not use the
dependencies from the rule definiton, like the rest.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: readme: fix link to issue tracker on github.
Matthias Krüger [Sat, 18 Feb 2017 10:11:33 +0000 (11:11 +0100)]
btrfs-progs: readme: fix link to issue tracker on github.

Signed-off-by: Matthias Krüger <matthias.krueger@famsik.de>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: docs: fix typo in btrfs-scrub manual page
Erik Logtenberg [Fri, 17 Feb 2017 20:11:48 +0000 (21:11 +0100)]
btrfs-progs: docs: fix typo in btrfs-scrub manual page

Changed "An" to "A".

Signed-off-by: Erik Logtenberg <erik@logtenberg.eu>
Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: corrupt-block: remove unused argument from corrupt_extent
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: corrupt-block: remove unused argument from corrupt_extent

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: mkfs: remove unused argument from add_file_items
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: mkfs: remove unused argument from add_file_items

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: image: remove unused argument from copy_log_trees
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: image: remove unused argument from copy_log_trees

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: mkfs: remove unused arguments from add_inode_items
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: mkfs: remove unused arguments from add_inode_items

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: mkfs: remove unused argument from make_root_dir
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: mkfs: remove unused argument from make_root_dir

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: remove unused argument from maybe_repair_root_item
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: check: remove unused argument from maybe_repair_root_item

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: remove unused argument from process_duplicates
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: check: remove unused argument from process_duplicates

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused argument from print_device_chunks
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: remove unused argument from print_device_chunks

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused argument from print_device_sizes
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: remove unused argument from print_device_sizes

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused argument from get_raid56_used
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: remove unused argument from get_raid56_used

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: remove unused argument from calc_extent_flag
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: check: remove unused argument from calc_extent_flag

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: remove unused argument from fix_item_offset
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: check: remove unused argument from fix_item_offset

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: remove unused argument from delete_bogus_item
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: check: remove unused argument from delete_bogus_item

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: remove unused argument from fix_key_order
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: check: remove unused argument from fix_key_order

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: remove unused argument from free_extent_record_cache
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: check: remove unused argument from free_extent_record_cache

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: remove unused argument from create_inode_item
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: check: remove unused argument from create_inode_item

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: remove unused arguments from delete_dir_index
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: check: remove unused arguments from delete_dir_index

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: remove unused argument from check_child_node
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: check: remove unused argument from check_child_node

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: check: remove unused argument from process_dir_item
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: check: remove unused argument from process_dir_item

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused argument from clear_extent_dirty
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: remove unused argument from clear_extent_dirty

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused argument from set_extent_dirty
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: remove unused argument from set_extent_dirty

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused argument from btrfs_add_system_chunk
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: remove unused argument from btrfs_add_system_chunk

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused argument from set_extent_bits
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: remove unused argument from set_extent_bits

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused argument from clear_extent_bits
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: remove unused argument from clear_extent_bits

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused function wait_on_tree_block_writeback
David Sterba [Thu, 9 Feb 2017 17:01:31 +0000 (18:01 +0100)]
btrfs-progs: remove unused function wait_on_tree_block_writeback

This used to be a kernel stub but has been removed from kernel long time
ago.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused argument from btrfs_lookup_inode_ref
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: remove unused argument from btrfs_lookup_inode_ref

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused argument from free_chunk_item
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: remove unused argument from free_chunk_item

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused argument from write_and_map_eb
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: remove unused argument from write_and_map_eb

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused argument from setup_inline_extent_backref
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: remove unused argument from setup_inline_extent_backref

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused argument from extent_data_ref_count
David Sterba [Thu, 9 Feb 2017 16:42:02 +0000 (17:42 +0100)]
btrfs-progs: remove unused argument from extent_data_ref_count

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused argument from btrfs_csum_data
David Sterba [Thu, 9 Feb 2017 16:39:44 +0000 (17:39 +0100)]
btrfs-progs: remove unused argument from btrfs_csum_data

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused parameter from truncate_one_csum
David Sterba [Thu, 9 Feb 2017 16:32:05 +0000 (17:32 +0100)]
btrfs-progs: remove unused parameter from truncate_one_csum

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: opencode trivial helper btrfs_free_transaction
David Sterba [Thu, 9 Feb 2017 16:24:50 +0000 (17:24 +0100)]
btrfs-progs: opencode trivial helper btrfs_free_transaction

It also does not exist in kernel code.

Signed-off-by: David Sterba <dsterba@suse.com>
7 years agobtrfs-progs: remove unused helpers from ctree.h
David Sterba [Thu, 9 Feb 2017 16:23:05 +0000 (17:23 +0100)]
btrfs-progs: remove unused helpers from ctree.h

Signed-off-by: David Sterba <dsterba@suse.com>