These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 50 insertions, 18 deletions

diff --git a/kernel/include/linux/sunrpc/svc.h b/kernel/include/linux/sunrpc/svc.h
index fae6fb947..cc0fc712b 100644
--- a/kernel/include/linux/sunrpc/svc.h
+++ b/kernel/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;
@@ -54,6 +49,25 @@ 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 *, struct net *);
+
+	/* function for service threads to run */
+	int		(*svo_function)(void *);
+
+	/* queue up a transport for servicing */
+	void		(*svo_enqueue_xprt)(struct svc_xprt *);
+
+	/* set up thread (or whatever) execution context */
+	int		(*svo_setup)(struct svc_serv *, struct svc_pool *, int);
+
+	/* optional module to count when adding threads (pooled svcs only) */
+	struct module	*svo_module;
+};
+
 /*
  * RPC service.
  *
@@ -85,16 +99,7 @@ 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 module *		sv_module;	/* optional module to count when
-						 * adding threads */
-	svc_thread_fn		sv_function;	/* main function for threads */
+	struct svc_serv_ops	*sv_ops;	/* server operations */
 #if defined(CONFIG_SUNRPC_BACKCHANNEL)
 	struct list_head	sv_cb_list;	/* queue for callback requests
 						 * that arrive over the same
@@ -423,19 +428,46 @@ struct svc_procedure {
 };
 
 /*
+ * Mode for mapping cpus to pools.
+ */
+enum {
+	SVC_POOL_AUTO = -1,	/* choose one of the others */
+	SVC_POOL_GLOBAL,	/* no mapping, just a single global pool
+				 * (legacy & UP mode) */
+	SVC_POOL_PERCPU,	/* one pool per cpu */
+	SVC_POOL_PERNODE	/* one pool per numa node */
+};
+
+struct svc_pool_map {
+	int count;			/* How many svc_servs use us */
+	int mode;			/* Note: int not enum to avoid
+					 * warnings about "enumeration value
+					 * not handled in switch" */
+	unsigned int npools;
+	unsigned int *pool_to;		/* maps pool id to cpu or node */
+	unsigned int *to_pool;		/* maps cpu or node to pool id */
+};
+
+extern struct svc_pool_map svc_pool_map;
+
+/*
  * Function prototypes.
  */
 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_rqst_alloc(struct svc_serv *serv,
+					struct svc_pool *pool, int node);
 struct svc_rqst *svc_prepare_thread(struct svc_serv *serv,
 					struct svc_pool *pool, int node);
+void		   svc_rqst_free(struct svc_rqst *);
 void		   svc_exit_thread(struct svc_rqst *);
+unsigned int	   svc_pool_map_get(void);
+void		   svc_pool_map_put(void);
 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 *);
 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 *);