xqemu

Author	SHA1	Message	Date
Paolo Bonzini	e2c81a4510	pr-manager-helper: report event on connection/disconnection Let management know if there were any problems communicating with qemu-pr-helper. The event is edge-triggered, and is sent every time the connection status of the pr-manager-helper object changes. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	2018-06-28 19:05:35 +02:00
Paolo Bonzini	5f64089416	pr-manager: add query-pr-managers QMP command This command lets you query the connection status of each pr-manager-helper object. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	2018-06-28 19:05:35 +02:00
Paolo Bonzini	aad10040d4	pr-manager-helper: avoid SIGSEGV when writing to the socket fail When writing to the qemu-pr-helper socket failed, the persistent reservation manager was correctly disconnecting the socket, but it did not clear pr_mgr->ioc. So the rest of the code did not know that the socket had been disconnected, accessed pr_mgr->ioc and happily caused a crash. To reproduce, it is enough to stop qemu-pr-helper between QEMU startup and executing e.g. sg_persist -k /dev/sdb. Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	2018-06-28 19:05:35 +02:00
Paolo Bonzini	9bad2a6b9d	scsi: add persistent reservation manager using qemu-pr-helper This adds a concrete subclass of pr-manager that talks to qemu-pr-helper. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	2017-09-22 21:07:27 +02:00