2015-06-08 19:04:54

by Shirley Ma

[permalink] [raw]
Subject: [RFC PATCH V4 2/7] nfsd/sunrpc: move sv_function into sv_ops

From: Jeff Layton <[email protected]>

Since we now have a container for holding svc_serv operations, move the
sv_function into it as well.

Signed-off-by: Shirley Ma <[email protected]>
Acked-by: Jeff Layton <[email protected]>
Tested-by: Shirley Ma <[email protected]>
---
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 7311677..bd03968 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -393,6 +393,7 @@ static int nfsd_get_default_max_blksize(void)

static struct svc_serv_ops nfsd_sv_ops = {
.svo_shutdown = nfsd_last_thread,
+ .svo_function = nfsd,
};

int nfsd_create_serv(struct net *net)
@@ -409,7 +410,7 @@ 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_sv_ops, nfsd, THIS_MODULE);
+ &nfsd_sv_ops, THIS_MODULE);
if (nn->nfsd_serv == NULL)
return -ENOMEM;

diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 3d651be..68103a6 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -19,11 +19,6 @@
#include <linux/wait.h>
#include <linux/mm.h>

-/*
- * This is the RPC server thread function prototype
- */
-typedef int (*svc_thread_fn)(void *);
-
/* statistics for svc_pool structures */
struct svc_pool_stats {
atomic_long_t packets;
@@ -58,7 +53,8 @@ struct svc_serv;

struct svc_serv_ops {
/* Callback to use when last thread exits. */
- void (*svo_shutdown)(struct svc_serv *serv, struct net *net);
+ void (*svo_shutdown)(struct svc_serv *, struct net *);
+ int (*svo_function)(void *);
};

/*
@@ -95,7 +91,6 @@ struct svc_serv {
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 */
#if defined(CONFIG_SUNRPC_BACKCHANNEL)
struct list_head sv_cb_list; /* queue for callback requests
* that arrive over the same
@@ -435,7 +430,7 @@ 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,
- struct svc_serv_ops *, svc_thread_fn, struct module *);
+ struct svc_serv_ops *, 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 bb44682..25d7b92 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -34,7 +34,7 @@

static void svc_unregister(const struct svc_serv *serv, struct net *net);

-#define svc_serv_is_pooled(serv) ((serv)->sv_function)
+#define svc_serv_is_pooled(serv) ((serv)->sv_ops->svo_function)

/*
* Mode for mapping cpus to pools.
@@ -494,8 +494,7 @@ EXPORT_SYMBOL_GPL(svc_create);

struct svc_serv *
svc_create_pooled(struct svc_program *prog, unsigned int bufsize,
- struct svc_serv_ops *ops, svc_thread_fn func,
- struct module *mod)
+ struct svc_serv_ops *ops, struct module *mod)
{
struct svc_serv *serv;
unsigned int npools = svc_pool_map_get();
@@ -504,7 +503,6 @@ svc_create_pooled(struct svc_program *prog, unsigned int bufsize,
if (!serv)
goto out_err;

- serv->sv_function = func;
serv->sv_module = mod;
return serv;
out_err:
@@ -740,7 +738,7 @@ svc_set_num_threads(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
}

__module_get(serv->sv_module);
- task = kthread_create_on_node(serv->sv_function, rqstp,
+ task = kthread_create_on_node(serv->sv_ops->svo_function, rqstp,
node, "%s", serv->sv_name);
if (IS_ERR(task)) {
error = PTR_ERR(task);