[libvirt] [PATCH v2 0/7] Introduce metadata locking

v2 of: https://www.redhat.com/archives/libvir-list/2018-August/msg00482.html diff to v1: - 1/6 from original patch set is replaced with different approach. As Dan suggested, virLockSpace accepts range to lock through its API and has new flag that tells it to wait for the lock to be acquired. Michal Prívozník (7): virlockspace: Allow caller to specify start and length offset in virLockSpaceAcquireResource virlockspace: Introduce VIR_LOCK_SPACE_ACQUIRE_WAIT lock_driver.h: Introduce metadata flag lockd_driver_lockd: Implement metadata flag lock_driver_sanlock: Handle metadata flag gracefully domain_lock: Implement metadata locking qemu_security: Lock metadata while relabelling src/libvirt_private.syms | 8 + src/locking/domain_lock.c | 304 ++++++++++++++++++++++++++++++++++--- src/locking/domain_lock.h | 28 ++++ src/locking/lock_daemon_dispatch.c | 13 +- src/locking/lock_driver.h | 2 + src/locking/lock_driver_lockd.c | 31 ++-- src/locking/lock_driver_lockd.h | 1 + src/locking/lock_driver_sanlock.c | 25 ++- src/qemu/qemu_security.c | 107 +++++++++++++ src/util/virlockspace.c | 25 ++- src/util/virlockspace.h | 5 + tests/virlockspacetest.c | 29 +++- 12 files changed, 525 insertions(+), 53 deletions(-) -- 2.16.4