bsd/nfs/nfs_bio.c

19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
285 		panic("nfsbuf not on free list");
337  * Called by vnode_pager() on pageout request of non-dirty page.
533  * process some entries on the delayed write queue
620  * Returns errno on error, 0 otherwise.
922 				panic("nfsbuf on freelist");
961 					panic("nfsbuf on freelist");
1017 		 * Abort the pages on error or: if this is an invalid or
1107 			panic("nfsbuf on freelist");
1119 			panic("nfsbuf on freelist");
1129 			panic("nfsbuf on freelist");
1160  * Wait for operations on the buffer to complete.
1187  * Mark I/O complete on a buffer.
1234 	 *	(2) Make sure it's on its node's correct block list,
1318  * release a reference on a buffer
1508 			 * (old) EOF on the server.  So, just make sure nb_validend
1642  * finish up an NFS READ RPC on a buffer
1668 	if (cb.rcb_func) /* take an extra reference on the nfsreq in case we want to resend it later due to grace error */
1806 	 * Decrement outstanding RPC count on buffer
1807 	 * and call nfs_buf_read_finish on last RPC.
1902 	int error = 0, n = 0, on = 0;
2037 		on = uio_offset(uio) % biosize;
2072 		n = (io_resid > (biosize - on)) ? (biosize - on) : io_resid;
2107 			pg = on/PAGE_SIZE;
2108 			while (pg <= (on + n - 1)/PAGE_SIZE) {
2123 					bp->nb_validoff = trunc_page(on);
2124 					bp->nb_validend = round_page(on+n);
2179 				bp->nb_validoff = trunc_page_32(on);
2180 				bp->nb_validend = round_page_32(on+n);
2213 			diff = (on >= bp->nb_validend) ? 0 : (bp->nb_validend - on);
2219 			error = uiomove(bp->nb_data + on, n, uio);
2659 			if (count) /* leave pg on last page */
2796  * finish up an NFS WRITE RPC on a buffer
2824 	if (cb.rcb_func) /* take an extra reference on the nfsreq in case we want to resend it later due to grace error */
2974 	 * Decrement outstanding RPC count on buffer
2975 	 * and call nfs_buf_write_finish on last RPC.
3022 	 * server, but nas not been committed to stable storage on the server
3081 			 * on the same original cred in order for them to be equal.
3150 	 * Commit data on the server, as required.
3178 	 * blocks dirty, depending on whether the commit
3281 	 * On the first pass, start async/unstable writes on all
3284 	 * On all subsequent passes, start STABLE writes on any remaining
3571 							 * Abort on EINTR.  If we don't, we could
3587 			// hold off on FREEUPs until we're done here
3779 	/* If this mount doesn't already have an nfsiod working on it... */
3786 			/* just queue it up on nfsiod mounts queue */