Ensure that CoW operations against shared blocks in the source file
work correctly.
v2: remove filefrag dependencies
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Refactor the code that creates files with mixed block types that we feed
into CoW tests to make sure that we can tiptoe around that kind of stuff.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
The default mkfs.xfs options contain -b size=4096, so all tests
using _scratch_mkfs_blocksized won't actually run unless those
options are changed. As we're trying to specificly test 1k
blocks we should always override the default option.
v2: Move the function to common/rc
Signed-off-by: Christoph Hellwig <hch@lst.de>
[darrick.wong@oracle.com: move function to common/rc]
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This can be returned by various implementations of the ioctl.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Test CoW operations when blocksize < pagesize and the only reflink
block is in the middle of the page.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Put all the reflink/dedupe-related test support routines in a separate
file, then modify the existing reflink tests to use them.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Darrick J. Wong
Christoph Hellwig