nbd: add a reconfigure netlink command

We want to be able to reconnect dead connections to existing block devices, so add a reconfigure netlink command. We will also allow users to change their timeout on the fly, but everything else will require a disconnect and reconnect. You won't be able to add more connections either, simply replace dead connections with new more lively connections.

Josef Bacik committed 9 years ago

Commit b7aa3d31 parent e46c7282 files · +142 −0Browse files

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include/uapi/linux/nbd-netlink.h+1−0

@@ -62,6 +62,7 @@ enum { · 61 unmodified lines
62	62	NBD_CMD_UNSPEC,
63	63	NBD_CMD_CONNECT,
64	64	NBD_CMD_DISCONNECT,
	65	+ NBD_CMD_RECONFIGURE,
65	66	__NBD_CMD_MAX,
66	67	};
67	68	#define NBD_CMD_MAX (__NBD_CMD_MAX - 1)