requires: 1426879023-18151-1-git-send-email-js...@redhat.com "[PATCH v4 00/20] block: transactionless incremental backup series"
This series adds support for incremental backup primitives in QMP transactions. It requires my transactionless incremental backup series, currently at v4. Patch 1 adds basic support for add and clear transactions. Patch 2 tests this basic support. Patches 3-4 refactor transactions a little bit, to add clarity. Patch 5 adds the framework for error scenarios where only some jobs that were launched by a transaction complete successfully, and we need to perform context-sensitive cleanup after the transaction itself has already completed. Patches 6-7 add necessary bookkeeping information to backup job data structures to take advantage of this new feature. Patch 8 just moves code. Patch 9 modifies qmp_drive_backup to support the new feature. Patch 10 implements the new feature for drive_backup transaction actions. Patch 11 tests the new feature. Lingering questions: - Is it worth it to add a post-transaction completion event to QMP that signifies all jobs launched by the transaction have completed? This would be of primary interest to libvirt, in particular, but only as a convenience feature. Thank you, --John Snow v2: Key: [----] : patches are identical [####] : number of functional differences between upstream/downstream patch [down] : patch is downstream-only The flags [FC] indicate (F)unctional and (C)ontextual differences, respectively 001/11:[0009] [FC] 'qapi: Add transaction support to block-dirty-bitmap operations' 002/11:[0036] [FC] 'iotests: add transactional incremental backup test' 003/11:[down] 'blockdev: rename BlkTransactionState and BdrvActionOps' 004/11:[down] 'block: re-add BlkTransactionState' 005/11:[0274] [FC] 'block: add transactional callbacks feature' 006/11:[0004] [FC] 'block: add refcount to Job object' 007/11:[0048] [FC] 'block: add delayed bitmap successor cleanup' 008/11:[down] 'block: move transactions beneath qmp interfaces' 009/11:[0084] [FC] 'qmp: Add an implementation wrapper for qmp_drive_backup' 010/11:[0050] [FC] 'block: drive_backup transaction callback support' 011/11:[0004] [FC] 'iotests: 124 - transactional failure test' 01: Fixed indentation. Fixed QMP commands to behave with new bitmap_lookup from transactionless-v4. 2.3 --> 2.4. 02: Folded in improvements to qemu-iotest 124 from transactional-v1. 03: NEW 04: NEW 05: A lot: Don't delete the comma in the transaction actions config use g_new0 instead of g_malloc0 Phrasing: "retcode" --> "Return code" Use GCC attributes to mark functions as unused until future patches. Added some data structure documentation. Many structure and function renames, hopefully to improve readability. Use just one list for all Actions instead of two separate lists. Remove ActionState from the list upon deletion/decref And many other small tweaks. 06: Comment phrasing. 07: Removed errp parameter from all functions introduced by this commit. bdrv_dirty_bitmap_decref --> bdrv_frozen_bitmap_decref 08: NEW 09: _drive_backup --> do_drive_backup() Forward declarations removed. 10: Rebased on top of drastically modified #05. Phrasing: "BackupBlockJob" instead of "BackupJob" in comments. 11: Removed extra parameters to wait_incremental() in test_transaction_failure() John Snow (11): qapi: Add transaction support to block-dirty-bitmap operations iotests: add transactional incremental backup test block: rename BlkTransactionState and BdrvActionOps block: re-add BlkTransactionState block: add transactional callbacks feature block: add refcount to Job object block: add delayed bitmap successor cleanup block: move transactions beneath qmp interfaces qmp: Add an implementation wrapper for qmp_drive_backup block: drive_backup transaction callback support iotests: 124 - transactional failure test block.c | 65 +- block/backup.c | 29 +- blockdev.c | 1599 ++++++++++++++++++++++++++++---------------- blockjob.c | 18 +- include/block/block.h | 10 +- include/block/block_int.h | 8 + include/block/blockjob.h | 21 + qapi-schema.json | 6 +- tests/qemu-iotests/124 | 170 +++++ tests/qemu-iotests/124.out | 4 +- 10 files changed, 1313 insertions(+), 617 deletions(-) -- 2.1.0