Commit 3518c866 authored by Dave Wysochanski's avatar Dave Wysochanski Committed by J. Bruce Fields
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nfsd4: Expose the callback address and state of each NFS4 client 



In addition to the client's address, display the callback channel
state and address in the 'info' file.

Signed-off-by: default avatarDave Wysochanski <dwysocha@redhat.com>
Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
parent d5029525

fs/nfsd/nfs4state.c

+17 −0
Original line number Diff line number Diff line
@@ -2358,6 +2358,21 @@ static void seq_quote_mem(struct seq_file *m, char *data, int len) 
	seq_printf(m, "\"");

}



static const char *cb_state2str(int state)

{

	switch (state) {

	case NFSD4_CB_UP:

		return "UP";

	case NFSD4_CB_UNKNOWN:

		return "UNKNOWN";

	case NFSD4_CB_DOWN:

		return "DOWN";

	case NFSD4_CB_FAULT:

		return "FAULT";

	}

	return "UNDEFINED";

}



static int client_info_show(struct seq_file *m, void *v)

{

	struct inode *inode = m->private;
@@ -2386,6 +2401,8 @@ static int client_info_show(struct seq_file *m, void *v) 
		seq_printf(m, "\nImplementation time: [%lld, %ld]\n",

			clp->cl_nii_time.tv_sec, clp->cl_nii_time.tv_nsec);

	}

	seq_printf(m, "callback state: %s\n", cb_state2str(clp->cl_cb_state));

	seq_printf(m, "callback address: %pISpc\n", &clp->cl_cb_conn.cb_addr);

	drop_client(clp);



	return 0;