mirror of https://github.com/proxmox/mirror_qemu
block: Allow node name for 'qemu-io' HMP command
When using a node name, create a temporary BlockBackend that is used to run the qemu-io command. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>master
parent
c0088d79a7
commit
e7f98f2f92
13
hmp.c
13
hmp.c
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@ -1923,11 +1923,22 @@ void hmp_chardev_remove(Monitor *mon, const QDict *qdict)
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void hmp_qemu_io(Monitor *mon, const QDict *qdict)
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void hmp_qemu_io(Monitor *mon, const QDict *qdict)
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{
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{
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BlockBackend *blk;
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BlockBackend *blk;
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BlockBackend *local_blk = NULL;
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const char* device = qdict_get_str(qdict, "device");
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const char* device = qdict_get_str(qdict, "device");
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const char* command = qdict_get_str(qdict, "command");
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const char* command = qdict_get_str(qdict, "command");
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Error *err = NULL;
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Error *err = NULL;
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blk = blk_by_name(device);
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blk = blk_by_name(device);
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if (!blk) {
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BlockDriverState *bs = bdrv_lookup_bs(NULL, device, &err);
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if (bs) {
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blk = local_blk = blk_new();
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blk_insert_bs(blk, bs);
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} else {
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goto fail;
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}
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}
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if (blk) {
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if (blk) {
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AioContext *aio_context = blk_get_aio_context(blk);
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AioContext *aio_context = blk_get_aio_context(blk);
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aio_context_acquire(aio_context);
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aio_context_acquire(aio_context);
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@ -1940,6 +1951,8 @@ void hmp_qemu_io(Monitor *mon, const QDict *qdict)
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"Device '%s' not found", device);
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"Device '%s' not found", device);
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}
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}
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fail:
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blk_unref(local_blk);
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hmp_handle_error(mon, &err);
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hmp_handle_error(mon, &err);
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}
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}
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