Move the source file to own directory so it can be further split and
refactored. File needs to be renamed to main.c so the build magic works.
Signed-off-by: David Sterba <dsterba@suse.com>
Concrete use-case:
- I want a static build to run in a small test VM.
- RedHat regrettably does not provide util-linux static libraries
- like libuuid.a and libblkid.a.
- So, one has to build them from source.
- Installing these to /usr is lame.
- This change lets me do make btrfs.static EXTRA_LDFLAGS=-L/path/to/util-linux-2.38/.libs
Pull-request: #563
Author: Alexey <snarkmaster@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Add a copy from v6.0.2 of kerncompat.h for libbtrfs to avoid accidental
build breakage as it's a public header and until now also shared with
the rest of btrfs-progs code.
Signed-off-by: David Sterba <dsterba@suse.com>
Add initial reflink group with example command 'clone' to test the
interface. Work in progress, experimental build needed.
Issue: #396
Signed-off-by: David Sterba <dsterba@suse.com>
We're going to sync btrfs.h into btrfs-progs from the kernel, however
libbtrfs still needs ioctl.h. To deal with this copy ioctl.h into
libbtrfs, and update that code to use the local copy and update the
libbtrfs headers list to use this copy.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The kernel switched to this recently, switch btrfs-progs to this as well
to avoid issues with syncing the kernel code.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
We were not clearing the .o files for btrfs-convert as we had the wrong
directory, which meant I missed a compile error that happened when I was
messing with kernel-shared. Fix this by making sure we clear the .o
files for convert properly.
Fixes: 753baf2443 ("btrfs-progs: build: redirect dependency files files to .deps")
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
In converting some of our helpers to take new args I would miss some
locations because we don't stop on any warning, and I would miss the
warning in the scrollback.
Note: the Centos7 build is not yet warning-free so we can't enable
-Werror by default. It can be used as:
make EXTRA_CFLAGS=-Werror
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
[ add note ]
Signed-off-by: David Sterba <dsterba@suse.com>
The dependency files clutter the source directories. Generate them in
the .deps directory, similar what automake uses.
Signed-off-by: David Sterba <dsterba@suse.com>
The radix-tree is not used in userspace code. In kernel it's for
tracking unpersisted and in-memory structures and has been replaced by
the xarray.
Signed-off-by: David Sterba <dsterba@suse.com>
All files include the <btrfsutil.h> which could be confused with the
system-wide installation. Drop the -I path from build and use full path
for any libbtrfsutil headers.
Signed-off-by: David Sterba <dsterba@suse.com>
The header dependency rules generated as .o.d files are sometimes stale
and fail the build. Add a rule to clean them if needed, otherwise
they're also cleaned by 'make clean'.
Signed-off-by: David Sterba <dsterba@suse.com>
Now that LZO and ZSTD are optional for not just restore, rename the
build variables to a more generic name and update configure summary.
Signed-off-by: David Sterba <dsterba@suse.com>
There are build-time options for LZO and ZSTD support, the stream v2+
supports compression. The help text lists what has been compiled in,
similar to what 'restore' does, with a similar limitation that a stream
with compressed data cannot be processed if any of the extents is
compressed.
Signed-off-by: David Sterba <dsterba@suse.com>
Let libbtrfs use own copy of the exported header files to avoid
potential breakage when syncing with kernel headers and also to remove
declarations that are not used by userspace. The send.h is frozen to
support protocol v1.
Signed-off-by: David Sterba <dsterba@suse.com>
LZO as a compression format is pretty archaic these days, there are
better algorithms in all metrics for compression and decompression, and
lzo hasn't had a new release since 2017.
Add an option to disable LZO (defaulting to enabled), and respect it in
cmds/restore.c.
NOTE: disabling support for LZO will make make it impossible to restore
data from filesystems where the compression has ever been used. It's not
recommended to build without the support in general.
Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: David Sterba <dsterba@suse.com>
In order to use rb_root_cached we need to sync with kernel sources. Copy
the file from linux.git/include/linux/rbtree_types.h and update so it's
C++ protected for inclusion to libbtrfs and remove duplicate
definitions.
Signed-off-by: David Sterba <dsterba@suse.com>
The fsstress tool is a useful file generator, pull it from fstests as
it's not packaged as a standalone tool anywhere and the LTP version is
out of date.
The file has been modified to build, some xfs-specific ioctls are not
supported.
Signed-off-by: David Sterba <dsterba@suse.com>
As zoned btrfs uses regular writes for metadata, it needs zone write
locking in the IO scheduler. Add a udev rule that configures an IO
scheduler doing zone write locking.
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The file names are build from roughly these components:
- btrfs-progs as prefix
- category (mkfs, convert) or what's the type of the file like 'image'
- the substitution template, XXXXXX
Signed-off-by: David Sterba <dsterba@suse.com>
The remaining functions are too entangled to be moved separately without
too much churn making them exported and not, so move all the code at
once. No refactoring or coding style fixups.
Signed-off-by: David Sterba <dsterba@suse.com>
The main functionality of subvolume listing is now in btrfs-list.c but
there are no other commands using the API so this will be merged. It's a
lot of code so split it to another file.
Signed-off-by: David Sterba <dsterba@suse.com>
The separate file was needed for libbtrfs in the past to avoid pulling
utils.c in, but this is not needed after recent cleanups.
Signed-off-by: David Sterba <dsterba@suse.com>
The usage of the crc32 helpers in ctree.h has been removed and there's
no other reason to keep crc32c.h exported.
Signed-off-by: David Sterba <dsterba@suse.com>
Drop basically all build objects that were entangled due to various
interdependencies and accumulated over the time to libbtrfs.
The commit of shame from 2013 is e5cb128a95 ("btrfs-progs: libify some
parts of btrfs-progs") and let that be a warning how not to do a
library.
The send stream is not yet available in libbtrfsutil, once it will be we
can drop libbtrfs for good.
Signed-off-by: David Sterba <dsterba@suse.com>
The two files send-stream and send-utils contain the implementations of
the exported API, which was just for send stream. This was the original
idea. That libbtrfs contains another 40 files was a result of
unclean/missing library design and had to be done that way to resolve
the symbols due to dependencies.
That the same files have been used for both internal and public library
has prevented refactoring and cleanups and was always a risk of breaking
something.
Make separate copy for libbtrfs utils and allow any cleanups and
reduction of number of build objects. The API hasn't changed since the
beginning so there's low risk of missing some fixes from the internal
code.
Signed-off-by: David Sterba <dsterba@suse.com>
Now libbtrfs.a has own list and we can merge $objects and
$shared_objects again. Reformat it now that it's changed.
Signed-off-by: David Sterba <dsterba@suse.com>
Enumerate all the objects required for libbtrfs.a, removing unnecessary
ones on the way
- kernel-lib/radix-tree.o
- kernel-shared/inode-item.o
- libbtrfsutil/stubs.o
There are only a handful of files exported in libbtrfs.sym so the file
is excessively long and most of the code is not necessary. This will be
reduced eventually.
static_libbtrfs_objects need to use the linked shared_objects to avoid
duplication of symbols.
Signed-off-by: David Sterba <dsterba@suse.com>
As preparation to make libbtrfs build standalone and separate, start
with variables simplifications and inlining.
Signed-off-by: David Sterba <dsterba@suse.com>
This is needed for future code which will make btrfs-progs' device
scanning logic a little smarter by filtering out path device in
multipath setups. libudev is added as an optional dependency since the
library doesn't have a static version so making it a hard dependency
means forfeiting static build support. To alleviate this a fallback code
will be added for the static build case which doesn't rely on libudev.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
libbtrfs isn't a proper library and exports internal headers that aren't
included from other headers and their use in public API does not make
sense. There are no known applications using them so don't install them.
Signed-off-by: David Sterba <dsterba@suse.com>
David Sterba
Alexey
Josef Bacik
Ross Burton
Johannes Thumshirn
Nikolay Borisov