[PATCH 0/2] Add support for discard_no_unref qcow2 option

Qemu 8.1.0 will have a new qcow2 option named discard-no-unref. https://gitlab.com/qemu-project/qemu/-/commit/42a2890a76f4783cd1c212f2785... Enabling this option wil change the way qemu handles guest discards inside the qcow2 image and will highly improve the fragmentation within the qcow2 image. We want to be able to enable this option (which is off by default) via libvirt, so this patch adds this option in libvirt. Jean-Louis Dupond (2): Add discard_no_unref option for qcow2 images Update NEWS with new discard_no_unref option NEWS.rst | 2 + docs/formatdomain.rst | 6 +++ src/conf/domain_conf.c | 8 +++ src/conf/domain_conf.h | 1 + src/conf/domain_validate.c | 15 ++++++ src/conf/schemas/domaincommon.rng | 8 +++ src/conf/storage_source_conf.c | 1 + src/conf/storage_source_conf.h | 1 + src/qemu/qemu_block.c | 11 ++--- src/qemu/qemu_domain.c | 1 + src/qemu/qemu_driver.c | 4 +- src/vz/vz_utils.c | 6 +++ tests/qemusecuritytest.c | 1 + .../disk-discard_no_unref.x86_64-latest.args | 39 +++++++++++++++ .../disk-discard_no_unref.xml | 39 +++++++++++++++ tests/qemuxml2argvtest.c | 1 + .../disk-discard_no_unref.x86_64-latest.xml | 49 +++++++++++++++++++ tests/qemuxml2xmltest.c | 1 + 18 files changed, 187 insertions(+), 7 deletions(-) create mode 100644 tests/qemuxml2argvdata/disk-discard_no_unref.x86_64-latest.args create mode 100644 tests/qemuxml2argvdata/disk-discard_no_unref.xml create mode 100644 tests/qemuxml2xmloutdata/disk-discard_no_unref.x86_64-latest.xml -- 2.41.0