The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/geom/nop/g_nop.h

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    1 /*-
    2  * Copyright (c) 2004-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD: releng/8.3/sys/geom/nop/g_nop.h 162834 2006-09-30 08:16:49Z pjd $
   27  */
   28 
   29 #ifndef _G_NOP_H_
   30 #define _G_NOP_H_
   31 
   32 #define G_NOP_CLASS_NAME        "NOP"
   33 #define G_NOP_VERSION           4
   34 #define G_NOP_SUFFIX            ".nop"
   35 
   36 #ifdef _KERNEL
   37 #define G_NOP_DEBUG(lvl, ...)   do {                                    \
   38         if (g_nop_debug >= (lvl)) {                                     \
   39                 printf("GEOM_NOP");                                     \
   40                 if (g_nop_debug > 0)                                    \
   41                         printf("[%u]", lvl);                            \
   42                 printf(": ");                                           \
   43                 printf(__VA_ARGS__);                                    \
   44                 printf("\n");                                           \
   45         }                                                               \
   46 } while (0)
   47 #define G_NOP_LOGREQ(bp, ...)   do {                                    \
   48         if (g_nop_debug >= 2) {                                         \
   49                 printf("GEOM_NOP[2]: ");                                \
   50                 printf(__VA_ARGS__);                                    \
   51                 printf(" ");                                            \
   52                 g_print_bio(bp);                                        \
   53                 printf("\n");                                           \
   54         }                                                               \
   55 } while (0)
   56 
   57 struct g_nop_softc {
   58         int             sc_error;
   59         off_t           sc_offset;
   60         u_int           sc_rfailprob;
   61         u_int           sc_wfailprob;
   62         uintmax_t       sc_reads;
   63         uintmax_t       sc_writes;
   64         uintmax_t       sc_readbytes;
   65         uintmax_t       sc_wrotebytes;
   66 };
   67 #endif  /* _KERNEL */
   68 
   69 #endif  /* _G_NOP_H_ */

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