4 Commits

Author	SHA1	Message	Date
Christoph Hellwig	fad5656b22	xfs: use NULL instead of 0 to initialize a pointer in xfs_getfsmap ... Found by sparse. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>	2017-04-25 09:40:41 -07:00
Darrick J. Wong	4c934c7dd6	xfs: report realtime space information via the rtbitmap ... Use the realtime bitmap to return free space information via getfsmap. Eventually this will be superseded by the realtime rmapbt code. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>	2017-04-03 15:18:18 -07:00
Darrick J. Wong	a1cae7283d	xfs: have getfsmap fall back to the freesp btrees when rmap is not present ... If the reverse-mapping btree isn't available, fall back to the free space btrees to provide partial reverse mapping information. The online scrub tool can make use of even partial information to speed up the data block scan. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>	2017-04-03 15:18:18 -07:00
Darrick J. Wong	e89c041338	xfs: implement the GETFSMAP ioctl ... Introduce a new ioctl that uses the reverse mapping btree to return information about the physical layout of the filesystem. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>	2017-04-03 15:18:17 -07:00