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linux-next/net/sunrpc/sysfs.h
Olga Kornievskaia 5b7eb78486 SUNRPC: take a xprt offline using sysfs
Using sysfs's xprt_state attribute, mark a particular transport offline.
It will not be picked during the round-robin selection. It's not allowed
to take the main (1st created transport associated with the rpc_client)
offline. Also bring a transport back online via sysfs by writing "online"
and that would allow for this transport to be picked during the round-
robin selection.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-07-08 14:03:24 -04:00

43 lines
1.1 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2020 Anna Schumaker <Anna.Schumaker@Netapp.com>
*/
#ifndef __SUNRPC_SYSFS_H
#define __SUNRPC_SYSFS_H
struct rpc_sysfs_client {
struct kobject kobject;
struct net *net;
struct rpc_clnt *clnt;
struct rpc_xprt_switch *xprt_switch;
};
struct rpc_sysfs_xprt_switch {
struct kobject kobject;
struct net *net;
struct rpc_xprt_switch *xprt_switch;
struct rpc_xprt *xprt;
};
struct rpc_sysfs_xprt {
struct kobject kobject;
struct rpc_xprt *xprt;
struct rpc_xprt_switch *xprt_switch;
};
int rpc_sysfs_init(void);
void rpc_sysfs_exit(void);
void rpc_sysfs_client_setup(struct rpc_clnt *clnt,
struct rpc_xprt_switch *xprt_switch,
struct net *net);
void rpc_sysfs_client_destroy(struct rpc_clnt *clnt);
void rpc_sysfs_xprt_switch_setup(struct rpc_xprt_switch *xprt_switch,
struct rpc_xprt *xprt, gfp_t gfp_flags);
void rpc_sysfs_xprt_switch_destroy(struct rpc_xprt_switch *xprt);
void rpc_sysfs_xprt_setup(struct rpc_xprt_switch *xprt_switch,
struct rpc_xprt *xprt, gfp_t gfp_flags);
void rpc_sysfs_xprt_destroy(struct rpc_xprt *xprt);
#endif