5.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chuck Lever chuck.lever@oracle.com
[ Upstream commit 37902c6313090235c847af89c5515591261ee338 ]
Hoist svo_function back into svc_serv and remove struct svc_serv_ops, since the struct is now devoid of fields.
Signed-off-by: Chuck Lever chuck.lever@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/lockd/svc.c | 6 +----- fs/nfs/callback.c | 43 ++++++++++---------------------------- fs/nfsd/nfssvc.c | 7 +------ include/linux/sunrpc/svc.h | 14 ++++--------- net/sunrpc/svc.c | 37 ++++++++++++++++++++++---------- 5 files changed, 43 insertions(+), 64 deletions(-)
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c index bfde31124f3af..59ef8a1f843f3 100644 --- a/fs/lockd/svc.c +++ b/fs/lockd/svc.c @@ -349,10 +349,6 @@ static struct notifier_block lockd_inet6addr_notifier = { }; #endif
-static const struct svc_serv_ops lockd_sv_ops = { - .svo_function = lockd, -}; - static int lockd_get(void) { struct svc_serv *serv; @@ -376,7 +372,7 @@ static int lockd_get(void) nlm_timeout = LOCKD_DFLT_TIMEO; nlmsvc_timeout = nlm_timeout * HZ;
- serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE, &lockd_sv_ops); + serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE, lockd); if (!serv) { printk(KERN_WARNING "lockd_up: create service failed\n"); return -ENOMEM; diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c index a494f9e7bd0a0..456af7d230cf1 100644 --- a/fs/nfs/callback.c +++ b/fs/nfs/callback.c @@ -231,29 +231,10 @@ static int nfs_callback_up_net(int minorversion, struct svc_serv *serv, return ret; }
-static const struct svc_serv_ops nfs40_cb_sv_ops = { - .svo_function = nfs4_callback_svc, -}; -#if defined(CONFIG_NFS_V4_1) -static const struct svc_serv_ops nfs41_cb_sv_ops = { - .svo_function = nfs41_callback_svc, -}; - -static const struct svc_serv_ops *nfs4_cb_sv_ops[] = { - [0] = &nfs40_cb_sv_ops, - [1] = &nfs41_cb_sv_ops, -}; -#else -static const struct svc_serv_ops *nfs4_cb_sv_ops[] = { - [0] = &nfs40_cb_sv_ops, - [1] = NULL, -}; -#endif - static struct svc_serv *nfs_callback_create_svc(int minorversion) { struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion]; - const struct svc_serv_ops *sv_ops; + int (*threadfn)(void *data); struct svc_serv *serv;
/* @@ -262,17 +243,6 @@ static struct svc_serv *nfs_callback_create_svc(int minorversion) if (cb_info->serv) return svc_get(cb_info->serv);
- switch (minorversion) { - case 0: - sv_ops = nfs4_cb_sv_ops[0]; - break; - default: - sv_ops = nfs4_cb_sv_ops[1]; - } - - if (sv_ops == NULL) - return ERR_PTR(-ENOTSUPP); - /* * Sanity check: if there's no task, * we should be the first user ... @@ -281,7 +251,16 @@ 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, sv_ops); + threadfn = nfs4_callback_svc; +#if defined(CONFIG_NFS_V4_1) + if (minorversion) + threadfn = nfs41_callback_svc; +#else + if (minorversion) + return ERR_PTR(-ENOTSUPP); +#endif + serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, + threadfn); 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 d25d4c12a499a..2f74be98ff2d9 100644 --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -612,10 +612,6 @@ static int nfsd_get_default_max_blksize(void) return ret; }
-static const struct svc_serv_ops nfsd_thread_sv_ops = { - .svo_function = nfsd, -}; - void nfsd_shutdown_threads(struct net *net) { struct nfsd_net *nn = net_generic(net, nfsd_net_id); @@ -654,8 +650,7 @@ int nfsd_create_serv(struct net *net) if (nfsd_max_blksize == 0) nfsd_max_blksize = nfsd_get_default_max_blksize(); nfsd_reset_versions(nn); - serv = svc_create_pooled(&nfsd_program, nfsd_max_blksize, - &nfsd_thread_sv_ops); + serv = svc_create_pooled(&nfsd_program, nfsd_max_blksize, nfsd); if (serv == NULL) return -ENOMEM;
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index c64db9b14a643..3c908ffbbf45f 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -52,13 +52,6 @@ struct svc_pool { unsigned long sp_flags; } ____cacheline_aligned_in_smp;
-struct svc_serv; - -struct svc_serv_ops { - /* function for service threads to run */ - int (*svo_function)(void *); -}; - /* * RPC service. * @@ -91,7 +84,8 @@ struct svc_serv {
unsigned int sv_nrpools; /* number of thread pools */ struct svc_pool * sv_pools; /* array of thread pools */ - const struct svc_serv_ops *sv_ops; /* server operations */ + int (*sv_threadfn)(void *data); + #if defined(CONFIG_SUNRPC_BACKCHANNEL) struct list_head sv_cb_list; /* queue for callback requests * that arrive over the same @@ -495,7 +489,7 @@ 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, - const struct svc_serv_ops *); + int (*threadfn)(void *data)); struct svc_rqst *svc_rqst_alloc(struct svc_serv *serv, struct svc_pool *pool, int node); void svc_rqst_replace_page(struct svc_rqst *rqstp, @@ -503,7 +497,7 @@ void svc_rqst_replace_page(struct svc_rqst *rqstp, void svc_rqst_free(struct svc_rqst *); void svc_exit_thread(struct svc_rqst *); struct svc_serv * svc_create_pooled(struct svc_program *, unsigned int, - const struct svc_serv_ops *); + int (*threadfn)(void *data)); int svc_set_num_threads(struct svc_serv *, struct svc_pool *, int); int svc_pool_stats_open(struct svc_serv *serv, struct file *file); int svc_process(struct svc_rqst *); diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index bdecc902cf998..7f231947347ea 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -446,7 +446,7 @@ __svc_init_bc(struct svc_serv *serv) */ static struct svc_serv * __svc_create(struct svc_program *prog, unsigned int bufsize, int npools, - const struct svc_serv_ops *ops) + int (*threadfn)(void *data)) { struct svc_serv *serv; unsigned int vers; @@ -463,7 +463,7 @@ __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_ops = ops; + serv->sv_threadfn = threadfn; xdrsize = 0; while (prog) { prog->pg_lovers = prog->pg_nvers-1; @@ -509,22 +509,37 @@ __svc_create(struct svc_program *prog, unsigned int bufsize, int npools, return serv; }
-struct svc_serv * -svc_create(struct svc_program *prog, unsigned int bufsize, - const struct svc_serv_ops *ops) +/** + * svc_create - Create an RPC service + * @prog: the RPC program the new service will handle + * @bufsize: maximum message size for @prog + * @threadfn: a function to service RPC requests for @prog + * + * Returns an instantiated struct svc_serv object or NULL. + */ +struct svc_serv *svc_create(struct svc_program *prog, unsigned int bufsize, + int (*threadfn)(void *data)) { - return __svc_create(prog, bufsize, /*npools*/1, ops); + return __svc_create(prog, bufsize, 1, threadfn); } EXPORT_SYMBOL_GPL(svc_create);
-struct svc_serv * -svc_create_pooled(struct svc_program *prog, unsigned int bufsize, - const struct svc_serv_ops *ops) +/** + * svc_create_pooled - Create an RPC service with pooled threads + * @prog: the RPC program the new service will handle + * @bufsize: maximum message size for @prog + * @threadfn: a function to service RPC requests for @prog + * + * Returns an instantiated struct svc_serv object or NULL. + */ +struct svc_serv *svc_create_pooled(struct svc_program *prog, + unsigned int bufsize, + int (*threadfn)(void *data)) { struct svc_serv *serv; unsigned int npools = svc_pool_map_get();
- serv = __svc_create(prog, bufsize, npools, ops); + serv = __svc_create(prog, bufsize, npools, threadfn); if (!serv) goto out_err; return serv; @@ -734,7 +749,7 @@ svc_start_kthreads(struct svc_serv *serv, struct svc_pool *pool, int nrservs) if (IS_ERR(rqstp)) return PTR_ERR(rqstp);
- task = kthread_create_on_node(serv->sv_ops->svo_function, rqstp, + task = kthread_create_on_node(serv->sv_threadfn, rqstp, node, "%s", serv->sv_name); if (IS_ERR(task)) { svc_exit_thread(rqstp);