nfs41: Backchannel: New find_client_with_session() (963891ac) · Commits · 戴 / test

fs/nfs/callback_proc.c

+36 −0

Original line number	Diff line number	Diff line
		@@ -104,6 +104,42 @@ out:

		#if defined(CONFIG_NFS_V4_1)

		/*
		* Returns a pointer to a held 'struct nfs_client' that matches the server's
		* address, major version number, and session ID. It is the caller's
		* responsibility to release the returned reference.
		*
		* Returns NULL if there are no connections with sessions, or if no session
		* matches the one of interest.
		*/
		static struct nfs_client *find_client_with_session(
		const struct sockaddr *addr, u32 nfsversion,
		struct nfs4_sessionid *sessionid)
		{
		struct nfs_client *clp;

		clp = nfs_find_client(addr, 4);
		if (clp == NULL)
		return NULL;

		do {
		struct nfs_client *prev = clp;

		if (clp->cl_session != NULL) {
		if (memcmp(clp->cl_session->sess_id.data,
		sessionid->data,
		NFS4_MAX_SESSIONID_LEN) == 0) {
		/* Returns a held reference to clp */
		return clp;
		}
		}
		clp = nfs_find_client_next(prev);
		nfs_put_client(prev);
		} while (clp != NULL);

		return NULL;
		}

		/* FIXME: validate args->cbs_{sequence,slot}id */
		/* FIXME: referring calls should be processed */
		unsigned nfs4_callback_sequence(struct cb_sequenceargs *args,