Sometimes it's needed to do a check on a mounted filesystem. This should
work fine on a quiescent filesystem or a read-only mount. Changes on the
block device done by kernel might confuse the userspace checker and it
might crash when it reads some stale data.
Repair without mount checks is not supported right now.
Signed-off-by: David Sterba <dsterba@suse.cz>
In some cases it's clear from the context which item is being printed,
so we can remove them. If the item has no data, some description is
still desired (eg. orphan or various backrefs).
Signed-off-by: David Sterba <dsterba@suse.com>
The pointers to critical roots must be valid before we start using them,
eg. as the space clearing code.
Signed-off-by: David Sterba <dsterba@suse.com>
A code added in 2009 (95d3f20b51) for a very short-lived change in
the format is no concern to us nowadays.
Signed-off-by: David Sterba <dsterba@suse.com>
The convert tests generate lots of log material, travis CI has limit 4MB
so we don't see anything useful when a late test fails.
Signed-off-by: David Sterba <dsterba@suse.com>
The warning can pop up frequently on a fuzzed image, the message seems
to be enough. Add a more fitting error code too.
Signed-off-by: David Sterba <dsterba@suse.com>
As btrfs_update_block_group fails when the block group is not found in
cache, we can exit btrfs_free_block_group, not much to rollback. The
caller will also exit in turn.
Signed-off-by: David Sterba <dsterba@suse.com>
Test failure in convert tests with log dump does not happen because
_fail is called before that and exits. Other test types are ok.
Signed-off-by: David Sterba <dsterba@suse.com>
Closing the fs will try to commit a pending transaction, but may fail to
do so if the filesystem state is not well defined. This will eg. fail
for some fuzz tests. The data structures are freed but no furhter
attempt to commit is made.
Signed-off-by: David Sterba <dsterba@suse.com>
Currently transaction bugs out insided btrfs_start_transaction in case
of error, we want to lift the error handling to the callers. This patch
adds the BUG_ON anywhere it's been missing so far. This is not the best
way of course. Transforming BUG_ON to a proper error handling highly
depends on the caller and should be dealt with case by case.
Signed-off-by: David Sterba <dsterba@suse.com>
The functionality needed to support reiserfs in convert has been added
recently and is not yet available in the CI images, so we'll download
and build it there.
Signed-off-by: David Sterba <dsterba@suse.com>
Probably with a new gcc (7.1.1) I started to see asan/ubsan link failures.
Fixed by explicitly linking the libraries.
Signed-off-by: David Sterba <dsterba@suse.com>
Except libbtrfs.so object, all other tools compile fine. The error is:
ld: send-stream.o: relocation R_X86_64_PC32 against symbol
`stderr@@GLIBC_2.2.5' can not be used when making a shared object;
recompile with -fPIC
Compiling with -fPIC fixes the problem.
Signed-off-by: David Sterba <dsterba@suse.com>
The variable LD_FLAGS does not exist and the flags are not used, we need
to use the newly added internal debugging linker flags.
Signed-off-by: David Sterba <dsterba@suse.com>
