diff options
Diffstat (limited to 'net/sunrpc/svc.c')
| -rw-r--r-- | net/sunrpc/svc.c | 42 |
1 files changed, 22 insertions, 20 deletions
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index 2783fd80c229..91eaef1844c8 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -191,7 +191,7 @@ svc_pool_map_init_percpu(struct svc_pool_map *m) return err; for_each_online_cpu(cpu) { - BUG_ON(pidx > maxpools); + BUG_ON(pidx >= maxpools); m->to_pool[cpu] = pidx; m->pool_to[pidx] = cpu; pidx++; @@ -476,15 +476,11 @@ __svc_create(struct svc_program *prog, unsigned int bufsize, int npools, i, serv->sv_name); pool->sp_id = i; - INIT_LIST_HEAD(&pool->sp_threads); INIT_LIST_HEAD(&pool->sp_sockets); INIT_LIST_HEAD(&pool->sp_all_threads); spin_lock_init(&pool->sp_lock); } - if (svc_uses_rpcbind(serv) && (!serv->sv_shutdown)) - serv->sv_shutdown = svc_rpcb_cleanup; - return serv; } @@ -505,13 +501,15 @@ svc_create_pooled(struct svc_program *prog, unsigned int bufsize, unsigned int npools = svc_pool_map_get(); serv = __svc_create(prog, bufsize, npools, shutdown); + if (!serv) + goto out_err; - if (serv != NULL) { - serv->sv_function = func; - serv->sv_module = mod; - } - + serv->sv_function = func; + serv->sv_module = mod; return serv; +out_err: + svc_pool_map_put(); + return NULL; } EXPORT_SYMBOL_GPL(svc_create_pooled); @@ -615,12 +613,14 @@ svc_prepare_thread(struct svc_serv *serv, struct svc_pool *pool, int node) goto out_enomem; serv->sv_nrthreads++; + __set_bit(RQ_BUSY, &rqstp->rq_flags); + spin_lock_init(&rqstp->rq_lock); + rqstp->rq_server = serv; + rqstp->rq_pool = pool; spin_lock_bh(&pool->sp_lock); pool->sp_nrthreads++; - list_add(&rqstp->rq_all, &pool->sp_all_threads); + list_add_rcu(&rqstp->rq_all, &pool->sp_all_threads); spin_unlock_bh(&pool->sp_lock); - rqstp->rq_server = serv; - rqstp->rq_pool = pool; rqstp->rq_argp = kmalloc_node(serv->sv_xdrsize, GFP_KERNEL, node); if (!rqstp->rq_argp) @@ -685,7 +685,8 @@ found_pool: * so we don't try to kill it again. */ rqstp = list_entry(pool->sp_all_threads.next, struct svc_rqst, rq_all); - list_del_init(&rqstp->rq_all); + set_bit(RQ_VICTIM, &rqstp->rq_flags); + list_del_rcu(&rqstp->rq_all); task = rqstp->rq_task; } spin_unlock_bh(&pool->sp_lock); @@ -783,10 +784,11 @@ svc_exit_thread(struct svc_rqst *rqstp) spin_lock_bh(&pool->sp_lock); pool->sp_nrthreads--; - list_del(&rqstp->rq_all); + if (!test_and_set_bit(RQ_VICTIM, &rqstp->rq_flags)) + list_del_rcu(&rqstp->rq_all); spin_unlock_bh(&pool->sp_lock); - kfree(rqstp); + kfree_rcu(rqstp, rq_rcu_head); /* Release the server */ if (serv) @@ -1086,10 +1088,10 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv) goto err_short_len; /* Will be turned off only in gss privacy case: */ - rqstp->rq_splice_ok = true; + set_bit(RQ_SPLICE_OK, &rqstp->rq_flags); /* Will be turned off only when NFSv4 Sessions are used */ - rqstp->rq_usedeferral = true; - rqstp->rq_dropme = false; + set_bit(RQ_USEDEFERRAL, &rqstp->rq_flags); + clear_bit(RQ_DROPME, &rqstp->rq_flags); /* Setup reply header */ rqstp->rq_xprt->xpt_ops->xpo_prep_reply_hdr(rqstp); @@ -1189,7 +1191,7 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv) *statp = procp->pc_func(rqstp, rqstp->rq_argp, rqstp->rq_resp); /* Encode reply */ - if (rqstp->rq_dropme) { + if (test_bit(RQ_DROPME, &rqstp->rq_flags)) { if (procp->pc_release) procp->pc_release(rqstp, NULL, rqstp->rq_resp); goto dropit; |