usr/src/uts/common/os/copyops.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 #include <sys/types.h>
  30 #include <sys/copyops.h>
  31 #include <sys/systm.h>
  32
  33 int
  34 physio(int (*strat)(struct buf *), struct buf *bp, dev_t dev,
  35     int rw, void (*mincnt)(struct buf *), struct uio *uio)
  36 {
  37         return (default_physio(strat, bp, dev, rw, mincnt, uio));
  38 }
  39
  40 void
  41 install_copyops(kthread_id_t tp, copyops_t *cp)
  42 {
  43         ASSERT(tp->t_copyops == NULL);
  44         tp->t_copyops = cp;
  45 }
  46
  47 void
  48 remove_copyops(kthread_id_t tp)
  49 {
  50         ASSERT(tp->t_copyops != NULL);
  51         tp->t_copyops = NULL;
  52 }
  53
  54 int
  55 copyops_installed(kthread_id_t tp)
  56 {
  57         return (tp->t_copyops != NULL);
  58 }