bsd/nfs/nfs_syscalls.c

19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
224  * They do read-ahead and write-behind operations on the block I/O cache.
226  * The pool of up to nfsiod_thread_max threads is launched on demand and exit
229  * Each thread puts an nfsiod on the free list and sleeps on it.  When it wakes
231  * it will put the struct at the head of free list and sleep on it.
233  * put it on the work queue, and wake whatever thread is waiting on that struct.
313  * Grab an nfsiod struct to work on, do some work, then drop it
343 		 * new work that arrives will be serviced on a subsequent
364 			/* we're going to stop working on this mount */
372 	/* loop if there's still a mount to work on */
563 	 * From now on we have to make sure not
577 	/* disallow write operations on directories */
703 				/* drop the iocount file_socket() grabbed on the file descriptor */
709 		 * nfssvc_addsock() will grab a retain count on the socket
714 		/* drop the iocount file_socket() grabbed on the file descriptor */
735 	int error = 0, sodomain, sotype, soprotocol, on = 1;
757 		sock_setsockopt(so, SOL_SOCKET, SO_KEEPALIVE, &on, sizeof(on));
759 		sock_setsockopt(so, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on));
824 	sock_retain(so); /* grab a retain count on the socket */
858  *   managing the work on the sockets:
859  *   nfsrv_sockwait - sockets w/new data waiting to be worked on
860  *   nfsrv_sockwork - sockets being worked on which may have more work to do
868  *   defecting to work on another socket.
870  * nfsds looking for a socket to work on check the "wait" queue first and
872  * When an nfsd starts working on a socket, it removes it from the head of
873  *   the queue it's currently on and moves it to the end of the "work" queue.
954 				/* look for a socket to work on in the wait queue */
967 				/* look for a socket to work on in the work queue */
980 				/* we found a socket to work on, grab a reference */
1231 			/* drop our reference on the socket */