Hi all, This patchset enables use of the file data block sharing feature (i.e. reflink) on the realtime device. It follows the same basic sequence as the realtime rmap series -- first a few cleanups; then widening of the API parameters; and introduction of the new btree format and inode fork format. Next comes enabling CoW and remapping for the rt device; new scrub, repair, and health reporting code; and at the end we implement some code to lengthen write requests so that rt extents are always CoWed fully. If you're going to start using this code, I strongly recommend pulling from my git trees, which are linked below. This has been running on the djcloud for months with no problems. Enjoy! Comments and questions are, as always, welcome. --D kernel git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-linux.git/log/?h=realtime-reflink xfsprogs git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfsprogs-dev.git/log/?h=realtime-reflink fstests git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfstests-dev.git/log/?h=realtime-reflink xfsdocs git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-documentation.git/log/?h=realtime-reflink --- Commits in this patchset: * common/populate: create realtime refcount btree * xfs: create fuzz tests for the realtime refcount btree * xfs/27[24]: adapt for checking files on the realtime volume * xfs: race fsstress with realtime refcount btree scrub and repair * xfs: remove xfs/131 now that we allow reflink on realtime volumes * generic/331,xfs/240: support files that skip delayed allocation * common/xfs: fix _xfs_get_file_block_size when rtinherit is set and no rt section --- common/populate | 26 ++++++++++++++++++--- common/xfs | 15 ++++++++++++ tests/generic/331 | 13 +++++++++- tests/generic/331.out | 2 +- tests/xfs/131 | 46 ------------------------------------ tests/xfs/131.out | 5 ---- tests/xfs/1538 | 38 ++++++++++++++++++++++++++++++ tests/xfs/1538.out | 4 +++ tests/xfs/1539 | 38 ++++++++++++++++++++++++++++++ tests/xfs/1539.out | 4 +++ tests/xfs/1540 | 38 ++++++++++++++++++++++++++++++ tests/xfs/1540.out | 4 +++ tests/xfs/1541 | 39 +++++++++++++++++++++++++++++++ tests/xfs/1541.out | 4 +++ tests/xfs/1542 | 38 ++++++++++++++++++++++++++++++ tests/xfs/1542.out | 4 +++ tests/xfs/1543 | 37 +++++++++++++++++++++++++++++ tests/xfs/1543.out | 4 +++ tests/xfs/1544 | 37 +++++++++++++++++++++++++++++ tests/xfs/1544.out | 4 +++ tests/xfs/1545 | 38 ++++++++++++++++++++++++++++++ tests/xfs/1545.out | 4 +++ tests/xfs/1818 | 40 ++++++++++++++++++++++++++++++++ tests/xfs/1818.out | 2 ++ tests/xfs/1819 | 40 ++++++++++++++++++++++++++++++++ tests/xfs/1819.out | 2 ++ tests/xfs/1893 | 2 +- tests/xfs/240 | 12 ++++++++- tests/xfs/240.out | 2 +- tests/xfs/272 | 40 +++++++++++++++++++++----------- tests/xfs/274 | 62 ++++++++++++++++++++++++++++++++++--------------- 31 files changed, 551 insertions(+), 93 deletions(-) delete mode 100755 tests/xfs/131 delete mode 100644 tests/xfs/131.out create mode 100755 tests/xfs/1538 create mode 100644 tests/xfs/1538.out create mode 100755 tests/xfs/1539 create mode 100644 tests/xfs/1539.out create mode 100755 tests/xfs/1540 create mode 100644 tests/xfs/1540.out create mode 100755 tests/xfs/1541 create mode 100644 tests/xfs/1541.out create mode 100755 tests/xfs/1542 create mode 100644 tests/xfs/1542.out create mode 100755 tests/xfs/1543 create mode 100644 tests/xfs/1543.out create mode 100755 tests/xfs/1544 create mode 100644 tests/xfs/1544.out create mode 100755 tests/xfs/1545 create mode 100644 tests/xfs/1545.out create mode 100755 tests/xfs/1818 create mode 100644 tests/xfs/1818.out create mode 100755 tests/xfs/1819 create mode 100644 tests/xfs/1819.out
