Alasdair, Please consider this initial release of the new Device Mapper thin provisioning target (with scalable snapshot support) for inclusion in linux-next (with the goal being upstream inclusion in Linux 3.1). There is significant interest in this thin provisioning target. It is EXPERIMENTAL but we are working aggressively to improve the code. All of our tests pass (test-suite listed below). We would like to get it upstream as soon as reasonable to encourage early adopters that might help us with further testing and features. It is understood that there may be various changes required but until it gets upstream it would be very helpful if you could refrain from editing these patches in place. Layering on additional patches is very much preferred (so that we can easily fold them back into the git tree, listed below, while pending upstream inclusion). That said, I've layered these patches ontop of your editing tree: ftp://sources.redhat.com/pub/dm/patches/2.6-unstable/editing/patches/series.html All patches are available here too: http://people.redhat.com/msnitzer/patches/upstream/dm-thinp/series.html The git tree that we've been using for development can be found here (though it is missing some checkpatch and misc. fixes I made today, Joe will likely push those on Monday): git://github.com/jthornber/linux-2.6.git thin-dev The incremental patch with my checkpatch and misc fixes is here: http://people.redhat.com/msnitzer/patches/upstream/dm-thinp/dm-thinp-checkpath-misc.patch The thinp test-suite (requires ruby 1.9) is available here: git://github.com/jthornber/thinp-test-suite.git All comments/review would be appreciated. Joe Thornber (3): dm: add dm_bdev dm persistent data: a library for storing metadata in DM targets dm thin: thin provisioning target Documentation/device-mapper/persistent-data.txt | 90 + Documentation/device-mapper/thin-provisioning.txt | 248 +++ drivers/md/Kconfig | 8 + drivers/md/Makefile | 3 + drivers/md/dm-thin-metadata.c | 1281 ++++++++++++ drivers/md/dm-thin-metadata.h | 164 ++ drivers/md/dm-thin.c | 2204 ++++++++++++++++++++ drivers/md/dm.c | 11 +- drivers/md/persistent-data/Kconfig | 9 + drivers/md/persistent-data/Makefile | 10 + drivers/md/persistent-data/dm-block-manager.c | 931 +++++++++ drivers/md/persistent-data/dm-block-manager.h | 110 + drivers/md/persistent-data/dm-btree-internal.h | 141 ++ drivers/md/persistent-data/dm-btree-remove.c | 540 +++++ drivers/md/persistent-data/dm-btree-spine.c | 192 ++ drivers/md/persistent-data/dm-btree.c | 871 ++++++++ drivers/md/persistent-data/dm-btree.h | 146 ++ drivers/md/persistent-data/dm-pd-module.c | 18 + drivers/md/persistent-data/dm-space-map-common.h | 99 + drivers/md/persistent-data/dm-space-map-disk.c | 624 ++++++ drivers/md/persistent-data/dm-space-map-disk.h | 21 + drivers/md/persistent-data/dm-space-map-metadata.c | 878 ++++++++ drivers/md/persistent-data/dm-space-map-metadata.h | 29 + drivers/md/persistent-data/dm-space-map.h | 116 + .../md/persistent-data/dm-transaction-manager.c | 442 ++++ .../md/persistent-data/dm-transaction-manager.h | 139 ++ include/linux/device-mapper.h | 1 + 27 files changed, 9324 insertions(+), 2 deletions(-) create mode 100644 Documentation/device-mapper/persistent-data.txt create mode 100644 Documentation/device-mapper/thin-provisioning.txt create mode 100644 drivers/md/dm-thin-metadata.c create mode 100644 drivers/md/dm-thin-metadata.h create mode 100644 drivers/md/dm-thin.c create mode 100644 drivers/md/persistent-data/Kconfig create mode 100644 drivers/md/persistent-data/Makefile create mode 100644 drivers/md/persistent-data/dm-block-manager.c create mode 100644 drivers/md/persistent-data/dm-block-manager.h create mode 100644 drivers/md/persistent-data/dm-btree-internal.h create mode 100644 drivers/md/persistent-data/dm-btree-remove.c create mode 100644 drivers/md/persistent-data/dm-btree-spine.c create mode 100644 drivers/md/persistent-data/dm-btree.c create mode 100644 drivers/md/persistent-data/dm-btree.h create mode 100644 drivers/md/persistent-data/dm-pd-module.c create mode 100644 drivers/md/persistent-data/dm-space-map-common.h create mode 100644 drivers/md/persistent-data/dm-space-map-disk.c create mode 100644 drivers/md/persistent-data/dm-space-map-disk.h create mode 100644 drivers/md/persistent-data/dm-space-map-metadata.c create mode 100644 drivers/md/persistent-data/dm-space-map-metadata.h create mode 100644 drivers/md/persistent-data/dm-space-map.h create mode 100644 drivers/md/persistent-data/dm-transaction-manager.c create mode 100644 drivers/md/persistent-data/dm-transaction-manager.h -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
