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[68.61.232.219]) by smtp.gmail.com with ESMTPSA id n143sm1690052itn.42.2019.02.01.11.57.32 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 01 Feb 2019 11:57:32 -0800 (PST) Received: from manet.1015granger.net (manet.1015granger.net [192.168.1.51]) by gateway.1015granger.net (8.14.7/8.14.7) with ESMTP id x11JvVnn008696; Fri, 1 Feb 2019 19:57:31 GMT Subject: [PATCH RFC 01/10] SUNRPC: Remove some dprintk() call sites from auth functions From: Chuck Lever To: linux-nfs@vger.kernel.org Cc: simo@redhat.com Date: Fri, 01 Feb 2019 14:57:31 -0500 Message-ID: <20190201195731.11389.69008.stgit@manet.1015granger.net> In-Reply-To: <20190201195538.11389.96106.stgit@manet.1015granger.net> References: <20190201195538.11389.96106.stgit@manet.1015granger.net> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Clean up: Reduce dprintk noise by removing dprintk() call sites from hot path that do not report exceptions. These are usually replaceable with function graph tracing. Signed-off-by: Chuck Lever --- net/sunrpc/auth.c | 29 ----------------------------- net/sunrpc/auth_unix.c | 9 +-------- 2 files changed, 1 insertion(+), 37 deletions(-) diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c index 8dfab61..275e84e 100644 --- a/net/sunrpc/auth.c +++ b/net/sunrpc/auth.c @@ -17,10 +17,6 @@ #include #include -#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) -# define RPCDBG_FACILITY RPCDBG_AUTH -#endif - #define RPC_CREDCACHE_DEFAULT_HASHBITS (4) struct rpc_cred_cache { struct hlist_head *hashtable; @@ -267,8 +263,6 @@ static int param_get_hashtbl_sz(char *buffer, const struct kernel_param *kp) } } rcu_read_unlock(); - - dprintk("RPC: %s returns %d\n", __func__, result); return result; } EXPORT_SYMBOL_GPL(rpcauth_list_flavors); @@ -636,9 +630,6 @@ struct rpc_cred * struct rpc_cred *ret; const struct cred *cred = current_cred(); - dprintk("RPC: looking up %s cred\n", - auth->au_ops->au_name); - memset(&acred, 0, sizeof(acred)); acred.cred = cred; ret = auth->au_ops->lookup_cred(auth, &acred, flags); @@ -670,8 +661,6 @@ struct rpc_cred * }; struct rpc_cred *ret; - dprintk("RPC: %5u looking up %s cred\n", - task->tk_pid, task->tk_client->cl_auth->au_ops->au_name); ret = auth->au_ops->lookup_cred(auth, &acred, lookupflags); put_cred(acred.cred); return ret; @@ -688,8 +677,6 @@ struct rpc_cred * if (!acred.principal) return NULL; - dprintk("RPC: %5u looking up %s machine cred\n", - task->tk_pid, task->tk_client->cl_auth->au_ops->au_name); return auth->au_ops->lookup_cred(auth, &acred, lookupflags); } @@ -698,8 +685,6 @@ struct rpc_cred * { struct rpc_auth *auth = task->tk_client->cl_auth; - dprintk("RPC: %5u looking up %s cred\n", - task->tk_pid, auth->au_ops->au_name); return rpcauth_lookupcred(auth, lookupflags); } @@ -776,9 +761,6 @@ struct rpc_cred * { struct rpc_cred *cred = task->tk_rqstp->rq_cred; - dprintk("RPC: %5u marshaling %s cred %p\n", - task->tk_pid, cred->cr_auth->au_ops->au_name, cred); - return cred->cr_ops->crmarshal(task, p); } @@ -787,9 +769,6 @@ struct rpc_cred * { struct rpc_cred *cred = task->tk_rqstp->rq_cred; - dprintk("RPC: %5u validating %s cred %p\n", - task->tk_pid, cred->cr_auth->au_ops->au_name, cred); - return cred->cr_ops->crvalidate(task, p); } @@ -808,8 +787,6 @@ static void rpcauth_wrap_req_encode(kxdreproc_t encode, struct rpc_rqst *rqstp, { struct rpc_cred *cred = task->tk_rqstp->rq_cred; - dprintk("RPC: %5u using %s cred %p to wrap rpc data\n", - task->tk_pid, cred->cr_ops->cr_name, cred); if (cred->cr_ops->crwrap_req) return cred->cr_ops->crwrap_req(task, encode, rqstp, data, obj); /* By default, we encode the arguments normally. */ @@ -833,8 +810,6 @@ static void rpcauth_wrap_req_encode(kxdreproc_t encode, struct rpc_rqst *rqstp, { struct rpc_cred *cred = task->tk_rqstp->rq_cred; - dprintk("RPC: %5u using %s cred %p to unwrap rpc data\n", - task->tk_pid, cred->cr_ops->cr_name, cred); if (cred->cr_ops->crunwrap_resp) return cred->cr_ops->crunwrap_resp(task, decode, rqstp, data, obj); @@ -865,8 +840,6 @@ static void rpcauth_wrap_req_encode(kxdreproc_t encode, struct rpc_rqst *rqstp, goto out; cred = task->tk_rqstp->rq_cred; } - dprintk("RPC: %5u refreshing %s cred %p\n", - task->tk_pid, cred->cr_auth->au_ops->au_name, cred); err = cred->cr_ops->crrefresh(task); out: @@ -880,8 +853,6 @@ static void rpcauth_wrap_req_encode(kxdreproc_t encode, struct rpc_rqst *rqstp, { struct rpc_cred *cred = task->tk_rqstp->rq_cred; - dprintk("RPC: %5u invalidating %s cred %p\n", - task->tk_pid, cred->cr_auth->au_ops->au_name, cred); if (cred) clear_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags); } diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c index 387f6b3..fc8a591 100644 --- a/net/sunrpc/auth_unix.c +++ b/net/sunrpc/auth_unix.c @@ -28,8 +28,6 @@ static struct rpc_auth * unx_create(const struct rpc_auth_create_args *args, struct rpc_clnt *clnt) { - dprintk("RPC: creating UNIX authenticator for client %p\n", - clnt); refcount_inc(&unix_auth.au_count); return &unix_auth; } @@ -37,7 +35,6 @@ static void unx_destroy(struct rpc_auth *auth) { - dprintk("RPC: destroying UNIX authenticator %p\n", auth); } /* @@ -48,10 +45,6 @@ { struct rpc_cred *ret = mempool_alloc(unix_pool, GFP_NOFS); - dprintk("RPC: allocating UNIX cred for uid %d gid %d\n", - from_kuid(&init_user_ns, acred->cred->fsuid), - from_kgid(&init_user_ns, acred->cred->fsgid)); - rpcauth_init_cred(ret, acred, auth, &unix_credops); ret->cr_flags = 1UL << RPCAUTH_CRED_UPTODATE; return ret; @@ -61,7 +54,7 @@ unx_free_cred_callback(struct rcu_head *head) { struct rpc_cred *rpc_cred = container_of(head, struct rpc_cred, cr_rcu); - dprintk("RPC: unx_free_cred %p\n", rpc_cred); + put_cred(rpc_cred->cr_cred); mempool_free(rpc_cred, unix_pool); }