Re: [RFC PATCH 0/7] Fix issue when storage migration is requested but there are no disks to migrate

In certain weird cases and due to very crusty code we'd instruct qemu to migrate storage using the old style storage migration when there wasn't anything to migrate. This was caused by a recent refactor. Note that the series is RFC as I didn't really test it yet, but feel free to provide feedback. Peter Krempa (7): util: xml: Introduce virXMLFormatElementEmpty qemuMigrationCookieNBDXMLFormat: Format empty <nbd/> element qemuMigrationSrcNBDStorageCopy: Return error code on error qemuMigrationSrcNBDStorageCopy: Don't pass migrate_flags qemuMigrationSrcRun: Sanitize setting of cookieFlags and migrate_flags on storage migration qemuMigrationSrcRun: Don't attempt any storage migration if no disks will be migrated qemuMigrationSrcBeginPhase: Don't offer 'nbd' in cookie if there are no disks to migrate src/libvirt_private.syms | 1 + src/qemu/qemu_migration.c | 102 ++++++++++++++++++------------- src/qemu/qemu_migration_cookie.c | 2 +- src/util/virxml.c | 42 ++++++++----- src/util/virxml.h | 7 +++ 5 files changed, 95 insertions(+), 59 deletions(-)