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.
Author: Jeff Layton <jlayton@xxxxxxxxxxxxxxx>
Signed-off-by: Shirley Ma <shirley.ma@xxxxxxxxxx>
Tested-by: Shirley Ma <shirley.ma@xxxxxxxxxx>
---
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 55505cb..4182b2f 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -322,6 +322,10 @@ out_rqst:
return error;
}
+static struct svc_serv_ops lockd_sv_ops = {
+ .svo_shutdown = svc_rpcb_cleanup,
+};
+
static struct svc_serv *lockd_create_svc(void)
{
struct svc_serv *serv;
@@ -350,7 +354,7 @@ static struct svc_serv *lockd_create_svc(void)
nlm_timeout = LOCKD_DFLT_TIMEO;
nlmsvc_timeout = nlm_timeout * HZ;
- serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE, svc_rpcb_cleanup);
+ serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE, &lockd_sv_ops);
if (!serv) {
printk(KERN_WARNING "lockd_up: create service failed\n");
return ERR_PTR(-ENOMEM);
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 8d129bb..5bd657d2 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -308,6 +308,9 @@ err_bind:
return ret;
}
+static struct svc_serv_ops nfs_cb_sv_ops = {
+};
+
static struct svc_serv *nfs_callback_create_svc(int minorversion)
{
struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];
@@ -333,7 +336,7 @@ static struct svc_serv *nfs_callback_create_svc(int minorversion)
printk(KERN_WARNING "nfs_callback_create_svc: no kthread, %d users??\n",
cb_info->users);
- serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, NULL);
+ serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, &nfs_cb_sv_ops);
if (!serv) {
printk(KERN_ERR "nfs_callback_create_svc: create service failed\n");
return ERR_PTR(-ENOMEM);
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 9277cc9..7311677 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -391,6 +391,10 @@ static int nfsd_get_default_max_blksize(void)
return ret;
}
+static struct svc_serv_ops nfsd_sv_ops = {
+ .svo_shutdown = nfsd_last_thread,
+};
+
int nfsd_create_serv(struct net *net)
{
int error;
@@ -405,7 +409,7 @@ int nfsd_create_serv(struct net *net)
nfsd_max_blksize = nfsd_get_default_max_blksize();
nfsd_reset_versions();
nn->nfsd_serv = svc_create_pooled(&nfsd_program, nfsd_max_blksize,
- nfsd_last_thread, nfsd, THIS_MODULE);
+ &nfsd_sv_ops, nfsd, THIS_MODULE);
if (nn->nfsd_serv == NULL)
return -ENOMEM;
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index fae6fb9..3d651be 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -54,6 +54,13 @@ struct svc_pool {
unsigned long sp_flags;
} ____cacheline_aligned_in_smp;
+struct svc_serv;
+
+struct svc_serv_ops {
+ /* Callback to use when last thread exits. */
+ void (*svo_shutdown)(struct svc_serv *serv, struct net *net);
+};
+
/*
* RPC service.
*
@@ -85,13 +92,7 @@ struct svc_serv {
unsigned int sv_nrpools; /* number of thread pools */
struct svc_pool * sv_pools; /* array of thread pools */
-
- void (*sv_shutdown)(struct svc_serv *serv,
- struct net *net);
- /* Callback to use when last thread
- * exits.
- */
-
+ struct svc_serv_ops * sv_ops; /* server operations */
struct module * sv_module; /* optional module to count when
* adding threads */
svc_thread_fn sv_function; /* main function for threads */
@@ -429,13 +430,12 @@ int svc_rpcb_setup(struct svc_serv *serv, struct net *net);
void svc_rpcb_cleanup(struct svc_serv *serv, struct net *net);
int svc_bind(struct svc_serv *serv, struct net *net);
struct svc_serv *svc_create(struct svc_program *, unsigned int,
- void (*shutdown)(struct svc_serv *, struct net *net));
+ struct svc_serv_ops *);
struct svc_rqst *svc_prepare_thread(struct svc_serv *serv,
struct svc_pool *pool, int node);
void svc_exit_thread(struct svc_rqst *);
struct svc_serv * svc_create_pooled(struct svc_program *, unsigned int,
- void (*shutdown)(struct svc_serv *, struct net *net),
- svc_thread_fn, struct module *);
+ struct svc_serv_ops *, svc_thread_fn, struct module *);
int svc_set_num_threads(struct svc_serv *, struct svc_pool *, int);
int svc_pool_stats_open(struct svc_serv *serv, struct file *file);
void svc_destroy(struct svc_serv *);
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 78974e4..bb44682 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -423,7 +423,7 @@ EXPORT_SYMBOL_GPL(svc_bind);
*/
static struct svc_serv *
__svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
- void (*shutdown)(struct svc_serv *serv, struct net *net))
+ struct svc_serv_ops *ops)
{
struct svc_serv *serv;
unsigned int vers;
@@ -440,7 +440,7 @@ __svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
bufsize = RPCSVC_MAXPAYLOAD;
serv->sv_max_payload = bufsize? bufsize : 4096;
serv->sv_max_mesg = roundup(serv->sv_max_payload + PAGE_SIZE, PAGE_SIZE);
- serv->sv_shutdown = shutdown;
+ serv->sv_ops = ops;
xdrsize = 0;
while (prog) {
prog->pg_lovers = prog->pg_nvers-1;
@@ -486,21 +486,21 @@ __svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
struct svc_serv *
svc_create(struct svc_program *prog, unsigned int bufsize,
- void (*shutdown)(struct svc_serv *serv, struct net *net))
+ struct svc_serv_ops *ops)
{
- return __svc_create(prog, bufsize, /*npools*/1, shutdown);
+ return __svc_create(prog, bufsize, /*npools*/1, ops);
}
EXPORT_SYMBOL_GPL(svc_create);
struct svc_serv *
svc_create_pooled(struct svc_program *prog, unsigned int bufsize,
- void (*shutdown)(struct svc_serv *serv, struct net *net),
- svc_thread_fn func, struct module *mod)
+ struct svc_serv_ops *ops, svc_thread_fn func,
+ struct module *mod)
{
struct svc_serv *serv;
unsigned int npools = svc_pool_map_get();
- serv = __svc_create(prog, bufsize, npools, shutdown);
+ serv = __svc_create(prog, bufsize, npools, ops);
if (!serv)
goto out_err;
@@ -517,8 +517,8 @@ void svc_shutdown_net(struct svc_serv *serv, struct net *net)
{
svc_close_net(serv, net);
- if (serv->sv_shutdown)
- serv->sv_shutdown(serv, net);
+ if (serv->sv_ops->svo_shutdown)
+ serv->sv_ops->svo_shutdown(serv, net);
}
EXPORT_SYMBOL_GPL(svc_shutdown_net);
--
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