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2012-11-28nbd-server-add: Fix the default for 'writable'Michal Privoznik
The documentation to this monitor command tells, that 'writable' argument is optional and defaults to false. However, the code sets true as the default. But since some applications may already been using this, it's safer to fix the code and not documentation which would break those applications. Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-11-12nbd: disallow nbd-server-add before nbd-server-startPaolo Bonzini
It works nicely with the QMP commands, but it adds useless complication with HMP. In particular, see the following: (qemu) nbd_server_add -w scsi0-hd0 (qemu) nbd_server_start -a localhost:10809 NBD server already exporting device scsi0-hd0 Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-11-12nbd: force read-only export for read-only devicesPaolo Bonzini
This is the desired behavior for HMP, but it is a better choice for QMP as well. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-11-12nbd: fix nbd_server_stop crash when no server was runningPaolo Bonzini
This failed on the new assertion of qemu_set_fd_handler2: qemu-system-x86_64: /home/pbonzini/work/upstream/qemu/iohandler.c:60: qemu_set_fd_handler2: Assertion `fd >= 0' failed. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-10-23qmp: add NBD server commandsPaolo Bonzini
Adding an NBD server inside QEMU is trivial, since all the logic is in nbd.c and can be shared easily between qemu-nbd and QEMU itself. The main difference is that qemu-nbd serves a single unnamed export, while QEMU serves named exports. Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>