Hi all, This is the eighth revision of a patchset that adds to XFS kernel support for mapping multiple file logical blocks to the same physical block (reflink/deduplication), implements the beginnings of online metadata scrubbing and preening, and implements reverse mapping for the realtime device. There shouldn't be any incompatible on-disk format changes, pending a thorough review of the patches within. (NOTE: In the git trees, this series is preceded by the pending rmap fixes patches posted to linux-xfs a few days ago.) At the beginning of this series are imports of all the kernel patches against libxfs/ that are needed to provide refcount btrees and reflink support. Please note that these patches /do/ have diffs against files in the libxfs/ directory (mostly for deferred ops) that do not start with 'xfs_', so the libxfs-apply script cannot be used in isolation. After that are the various small changes required for db, growfs, io, logprint, and manpages to support the new reference counting data structures. The mkfs patch is, as usual, at the end. Before that, however, are a bunch of patches to xfs_repair that spot-check the refcount btree and use the rmap tracking code introduced in xfsprogs 4.8 to regenerate the refcount btree. It also fixes discrepancies in the inode reflink flag. If you're going to start using this mess, you probably ought to just pull from my github trees for kernel[1], xfsprogs[2], xfstests[3], xfs-docs[4], and man-pages[5]. The kernel patches in the git trees should apply to 4.8-rc3; xfsprogs patches to for-next; and xfstest to master. The patches have been xfstested with x64, ppc64, and armhf; all tests in the clone and rmap groups pass. AFAICT they don't cause any new failures for the 'auto' group. This is an extraordinary way to eat your data. Enjoy! Comments and questions are, as always, welcome. --D [1] https://github.com/djwong/linux/tree/djwong-devel [2] https://github.com/djwong/xfsprogs/tree/djwong-devel [3] https://github.com/djwong/xfstests/tree/djwong-devel [4] https://github.com/djwong/xfs-documentation/tree/djwong-devel [5] https://github.com/djwong/man-pages/tree/djwong-devel _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
