afs: Trace afs_server usage (45218193) · Commits · 戴 / test

fs/afs/callback.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -48,7 +48,7 @@ static struct afs_cb_interest afs_create_interest(struct afs_server server,
		refcount_set(&new->usage, 1);
		new->sb = vnode->vfs_inode.i_sb;
		new->vid = vnode->volume->vid;
		new->server = afs_get_server(server);
		new->server = afs_get_server(server, afs_server_trace_get_new_cbi);
		INIT_HLIST_NODE(&new->cb_vlink);

		write_lock(&server->cb_break_lock);
		@@ -195,7 +195,7 @@ void afs_put_cb_interest(struct afs_net net, struct afs_cb_interest cbi)
		write_unlock(&cbi->server->cb_break_lock);
		if (vi)
		kfree_rcu(vi, rcu);
		afs_put_server(net, cbi->server);
		afs_put_server(net, cbi->server, afs_server_trace_put_cbi);
		}
		kfree_rcu(cbi, rcu);
		}

+4 −1

Original line number	Diff line number	Diff line
		@@ -260,8 +260,11 @@ static void SRXAFSCB_CallBack(struct work_struct *work)
		* server holds up change visibility till it receives our reply so as
		* to maintain cache coherency.
		*/
		if (call->server)
		if (call->server) {
		trace_afs_server(call->server, atomic_read(&call->server->usage),
		afs_server_trace_callback);
		afs_break_callbacks(call->server, call->count, call->request);
		}

		afs_send_empty_reply(call);
		afs_put_call(call);

+1 −1

Original line number	Diff line number	Diff line
		@@ -1915,7 +1915,7 @@ struct afs_call afs_fs_get_capabilities(struct afs_net net,
		return ERR_PTR(-ENOMEM);

		call->key = key;
		call->server = afs_get_server(server);
		call->server = afs_get_server(server, afs_server_trace_get_caps);
		call->server_index = server_index;
		call->upgrade = true;
		call->async = true;

+3 −7

Original line number	Diff line number	Diff line
		@@ -518,6 +518,7 @@ struct afs_server {
		atomic_t usage;
		u32 addr_version; /* Address list version */
		u32 cm_epoch; /* Server RxRPC epoch */
		unsigned int debug_id; /* Debugging ID for traces */

		/* file service access */
		rwlock_t fs_lock; /* access lock */
		@@ -1244,17 +1245,12 @@ extern void __exit afs_clean_up_permit_cache(void);
		*/
		extern spinlock_t afs_server_peer_lock;

		static inline struct afs_server afs_get_server(struct afs_server server)
		{
		atomic_inc(&server->usage);
		return server;
		}

		extern struct afs_server afs_find_server(struct afs_net ,
		const struct sockaddr_rxrpc *);
		extern struct afs_server afs_find_server_by_uuid(struct afs_net , const uuid_t *);
		extern struct afs_server afs_lookup_server(struct afs_cell , struct key , const uuid_t );
		extern void afs_put_server(struct afs_net , struct afs_server );
		extern struct afs_server afs_get_server(struct afs_server , enum afs_server_trace);
		extern void afs_put_server(struct afs_net , struct afs_server , enum afs_server_trace);
		extern void afs_manage_servers(struct work_struct *);
		extern void afs_servers_timer(struct timer_list *);
		extern void __net_exit afs_purge_servers(struct afs_net *);

+1 −1

Original line number	Diff line number	Diff line
		@@ -188,7 +188,7 @@ void afs_put_call(struct afs_call *call)
		if (call->type->destructor)
		call->type->destructor(call);

		afs_put_server(call->net, call->server);
		afs_put_server(call->net, call->server, afs_server_trace_put_call);
		afs_put_cb_interest(call->net, call->cbi);
		afs_put_addrlist(call->alist);
		kfree(call->request);