xfs: test scratch device mkfs features

Some filesystem features are not compatible with certain tests, and
so we need to do require tests to determine if they are supported.
Some of these incompatibilities might be a result of optional mkfs
parameters specified in MKFS_OPTIONS. In this case, we don't want
scratch_mkfs_xfs stripping MKFS_OPTIONS and saying the feature is
supported when the next _scratch_mkfs command in the test will
result in a different mkfs command line.

Hence add a "mkfs supported" function to run a non-destructive mkfs
test to determine if the feature is supported by the current test's
mkfs configuration.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rich Johnston <rjohnston@sgi.com>
xfs: New _require_* tests for CRC enabled filesystems

CRCs always enabled 32 bit project inodes and attr2 formats, hence
they cannot be turned off. Add new require rules for the tests that
require attr and 16 bit project IDs so these tests are avoided on
CRC enabled filesystems.

Also, add a xfs_db write check so that we can avoid tests that are
dependent on xfs_db modifying filesystem structures as they will
fail on CRC enabled filessystems right now. This is just temporary
until full write xfs_db support is available.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rich Johnston <rjohnston@sgi.com>
xfs: add fsstress/recovery test

This has found several issues with recovery on CRC based
filesystems. It is based on a test case for a dir3 assert failure
provided by Michael L Semon.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rich Johnston <rjohnston@sgi.com>
xfs/073, 208: remove .full output before starting the test

Otherwise we end up with an ever-growing file for every test that is
run and that makes it hard to isolate failures.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rich Johnston <rjohnston@sgi.com>
xfs: support xfs_metadump with external logs

When running xfstests with an external log, the metadump tests fail
with extra output like:

    +filesystem is marked as having an external log; specify logdev on the mount command line.
    +xfs_metadump: cannot read superblock for ag 0

Add a _scratch_metadump() function to handle different logdev
configurations automatically for metadump.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rich Johnston <rjohnston@sgi.com>
xfs/104: use fixed log size

In changing the default log sizes in mkfs, the freespace
calculations in xfs/104 are no longer valid and so it fails with
ENOSPC before running any of the growfs tests. Make the test use a
fixed log size of 5MB so that freespace calculations remain valid
and the test passes regardless of whether we have a new or old mkfs
binary.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rich Johnston <rjohnston@sgi.com>
generic/204: use fixed log size for XFS

In changing the default log sizes in mkfs, the freespace
calculations in generic/204 are no longer valid and so it fails with
ENOSPC before ti has finished creating the necessary files.. Make
the test use a fixed log size of 5MB for XFS so that freespace
calculations remain valid and the test passes regardless of whether
we have a new or old mkfs binary.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rich Johnston <rjohnston@sgi.com>