nfsd/sunrpc: add a new svc_serv_ops struct and move sv_shutdown into it
In later patches we'll need to abstract out more operations on a per-service level, besides sv_shutdown and sv_function. Declare a new svc_serv_ops struct to hold these operations, and move sv_shutdown into this struct. Signed-off-by: Shirley Ma <shirley.ma@oracle.com> Acked-by: Jeff Layton <jlayton@primarydata.com> Tested-by: Shirley Ma <shirley.ma@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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ea126e7435
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@ -322,6 +322,10 @@ out_rqst:
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return error;
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}
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static struct svc_serv_ops lockd_sv_ops = {
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.svo_shutdown = svc_rpcb_cleanup,
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};
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static struct svc_serv *lockd_create_svc(void)
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{
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struct svc_serv *serv;
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@ -350,7 +354,7 @@ static struct svc_serv *lockd_create_svc(void)
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nlm_timeout = LOCKD_DFLT_TIMEO;
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nlmsvc_timeout = nlm_timeout * HZ;
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serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE, svc_rpcb_cleanup);
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serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE, &lockd_sv_ops);
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if (!serv) {
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printk(KERN_WARNING "lockd_up: create service failed\n");
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return ERR_PTR(-ENOMEM);
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@ -308,6 +308,9 @@ err_bind:
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return ret;
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}
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static struct svc_serv_ops nfs_cb_sv_ops = {
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};
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static struct svc_serv *nfs_callback_create_svc(int minorversion)
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{
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struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];
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@ -333,7 +336,7 @@ static struct svc_serv *nfs_callback_create_svc(int minorversion)
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printk(KERN_WARNING "nfs_callback_create_svc: no kthread, %d users??\n",
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cb_info->users);
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serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, NULL);
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serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, &nfs_cb_sv_ops);
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if (!serv) {
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printk(KERN_ERR "nfs_callback_create_svc: create service failed\n");
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return ERR_PTR(-ENOMEM);
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@ -391,6 +391,10 @@ static int nfsd_get_default_max_blksize(void)
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return ret;
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}
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static struct svc_serv_ops nfsd_sv_ops = {
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.svo_shutdown = nfsd_last_thread,
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};
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int nfsd_create_serv(struct net *net)
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{
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int error;
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@ -405,7 +409,7 @@ int nfsd_create_serv(struct net *net)
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nfsd_max_blksize = nfsd_get_default_max_blksize();
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nfsd_reset_versions();
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nn->nfsd_serv = svc_create_pooled(&nfsd_program, nfsd_max_blksize,
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nfsd_last_thread, nfsd, THIS_MODULE);
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&nfsd_sv_ops, nfsd, THIS_MODULE);
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if (nn->nfsd_serv == NULL)
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return -ENOMEM;
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@ -54,6 +54,13 @@ struct svc_pool {
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unsigned long sp_flags;
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} ____cacheline_aligned_in_smp;
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struct svc_serv;
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struct svc_serv_ops {
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/* Callback to use when last thread exits. */
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void (*svo_shutdown)(struct svc_serv *serv, struct net *net);
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};
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/*
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* RPC service.
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*
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@ -85,13 +92,7 @@ struct svc_serv {
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unsigned int sv_nrpools; /* number of thread pools */
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struct svc_pool * sv_pools; /* array of thread pools */
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void (*sv_shutdown)(struct svc_serv *serv,
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struct net *net);
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/* Callback to use when last thread
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* exits.
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*/
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struct svc_serv_ops *sv_ops; /* server operations */
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struct module * sv_module; /* optional module to count when
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* adding threads */
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svc_thread_fn sv_function; /* main function for threads */
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@ -429,13 +430,12 @@ int svc_rpcb_setup(struct svc_serv *serv, struct net *net);
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void svc_rpcb_cleanup(struct svc_serv *serv, struct net *net);
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int svc_bind(struct svc_serv *serv, struct net *net);
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struct svc_serv *svc_create(struct svc_program *, unsigned int,
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void (*shutdown)(struct svc_serv *, struct net *net));
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struct svc_serv_ops *);
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struct svc_rqst *svc_prepare_thread(struct svc_serv *serv,
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struct svc_pool *pool, int node);
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void svc_exit_thread(struct svc_rqst *);
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struct svc_serv * svc_create_pooled(struct svc_program *, unsigned int,
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void (*shutdown)(struct svc_serv *, struct net *net),
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svc_thread_fn, struct module *);
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struct svc_serv_ops *, svc_thread_fn, struct module *);
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int svc_set_num_threads(struct svc_serv *, struct svc_pool *, int);
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int svc_pool_stats_open(struct svc_serv *serv, struct file *file);
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void svc_destroy(struct svc_serv *);
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@ -423,7 +423,7 @@ EXPORT_SYMBOL_GPL(svc_bind);
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*/
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static struct svc_serv *
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__svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
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void (*shutdown)(struct svc_serv *serv, struct net *net))
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struct svc_serv_ops *ops)
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{
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struct svc_serv *serv;
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unsigned int vers;
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@ -440,7 +440,7 @@ __svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
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bufsize = RPCSVC_MAXPAYLOAD;
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serv->sv_max_payload = bufsize? bufsize : 4096;
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serv->sv_max_mesg = roundup(serv->sv_max_payload + PAGE_SIZE, PAGE_SIZE);
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serv->sv_shutdown = shutdown;
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serv->sv_ops = ops;
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xdrsize = 0;
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while (prog) {
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prog->pg_lovers = prog->pg_nvers-1;
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@ -486,21 +486,21 @@ __svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
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struct svc_serv *
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svc_create(struct svc_program *prog, unsigned int bufsize,
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void (*shutdown)(struct svc_serv *serv, struct net *net))
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struct svc_serv_ops *ops)
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{
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return __svc_create(prog, bufsize, /*npools*/1, shutdown);
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return __svc_create(prog, bufsize, /*npools*/1, ops);
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}
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EXPORT_SYMBOL_GPL(svc_create);
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struct svc_serv *
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svc_create_pooled(struct svc_program *prog, unsigned int bufsize,
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void (*shutdown)(struct svc_serv *serv, struct net *net),
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svc_thread_fn func, struct module *mod)
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struct svc_serv_ops *ops, svc_thread_fn func,
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struct module *mod)
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{
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struct svc_serv *serv;
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unsigned int npools = svc_pool_map_get();
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serv = __svc_create(prog, bufsize, npools, shutdown);
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serv = __svc_create(prog, bufsize, npools, ops);
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if (!serv)
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goto out_err;
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@ -517,8 +517,8 @@ void svc_shutdown_net(struct svc_serv *serv, struct net *net)
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{
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svc_close_net(serv, net);
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if (serv->sv_shutdown)
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serv->sv_shutdown(serv, net);
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if (serv->sv_ops->svo_shutdown)
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serv->sv_ops->svo_shutdown(serv, net);
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}
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EXPORT_SYMBOL_GPL(svc_shutdown_net);
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