diff options
| author | Jeff Layton <jlayton@primarydata.com> | 2015-06-08 12:09:54 -0700 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2015-08-10 16:05:43 -0400 |
| commit | d70bc0c67c7aaf0d00084b2f91b44fe1a8ae4e15 (patch) | |
| tree | a6542e7c8c30fe37b74b4f13af22c55d9c1dd224 /include/linux/sunrpc | |
| parent | 598e2359090d393b01a8e10386dc3056ccfa47ae (diff) | |
nfsd/sunrpc: move pool_mode definitions into svc.h
In later patches, we're going to need to allow code external to svc.c
to figure out what pool_mode is in use. Move these definitions into
svc.h to prepare for that.
Also, make the svc_pool_map object available and exported so that other
modules can peek in there to get insight into what pool mode is in use.
Likewise, export svc_pool_map_get/put function to make it safe to do so.
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>
Diffstat (limited to 'include/linux/sunrpc')
| -rw-r--r-- | include/linux/sunrpc/svc.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index fd5bb9922545..3a9baead5c3e 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -428,6 +428,29 @@ 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); @@ -438,6 +461,8 @@ struct svc_serv *svc_create(struct svc_program *, unsigned int, struct svc_rqst *svc_prepare_thread(struct svc_serv *serv, struct svc_pool *pool, int node); 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, struct svc_serv_ops *); int svc_set_num_threads(struct svc_serv *, struct svc_pool *, int); |