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/dev/raidframe/rf_shutdown.c

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    1 /*      $NetBSD: rf_shutdown.c,v 1.17 2004/03/09 02:15:33 oster Exp $   */
    2 /*
    3  * rf_shutdown.c
    4  */
    5 /*
    6  * Copyright (c) 1996 Carnegie-Mellon University.
    7  * All rights reserved.
    8  *
    9  * Author: Jim Zelenka
   10  *
   11  * Permission to use, copy, modify and distribute this software and
   12  * its documentation is hereby granted, provided that both the copyright
   13  * notice and this permission notice appear in all copies of the
   14  * software, derivative works or modified versions, and any portions
   15  * thereof, and that both notices appear in supporting documentation.
   16  *
   17  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   18  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
   19  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   20  *
   21  * Carnegie Mellon requests users of this software to return to
   22  *
   23  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   24  *  School of Computer Science
   25  *  Carnegie Mellon University
   26  *  Pittsburgh PA 15213-3890
   27  *
   28  * any improvements or extensions that they make and grant Carnegie the
   29  * rights to redistribute these changes.
   30  */
   31 /*
   32  * Maintain lists of cleanup functions. Also, mechanisms for coordinating
   33  * thread startup and shutdown.
   34  */
   35 
   36 #include <sys/cdefs.h>
   37 __KERNEL_RCSID(0, "$NetBSD: rf_shutdown.c,v 1.17 2004/03/09 02:15:33 oster Exp $");
   38 
   39 #include <dev/raidframe/raidframevar.h>
   40 
   41 #include "rf_archs.h"
   42 #include "rf_shutdown.h"
   43 #include "rf_debugMem.h"
   44 
   45 
   46 #ifndef RF_DEBUG_SHUTDOWN
   47 #define RF_DEBUG_SHUTDOWN 0
   48 #endif
   49 
   50 static void rf_FreeShutdownEnt(RF_ShutdownList_t *);
   51 
   52 static void 
   53 rf_FreeShutdownEnt(RF_ShutdownList_t *ent)
   54 {
   55         FREE(ent, M_RAIDFRAME);
   56 }
   57 
   58 #if RF_DEBUG_SHUTDOWN
   59 void
   60 _rf_ShutdownCreate(RF_ShutdownList_t **listp,  void (*cleanup)(void *arg),
   61                    void *arg, char *file, int line)
   62 #else
   63 void
   64 _rf_ShutdownCreate(RF_ShutdownList_t **listp,  void (*cleanup)(void *arg),
   65                    void *arg)
   66 #endif
   67 {
   68         RF_ShutdownList_t *ent;
   69 
   70         /*
   71          * Have to directly allocate memory here, since we start up before
   72          * and shutdown after RAIDframe internal allocation system.
   73          */
   74         /*      ent = (RF_ShutdownList_t *) malloc(sizeof(RF_ShutdownList_t), 
   75                 M_RAIDFRAME, M_WAITOK); */
   76         ent = (RF_ShutdownList_t *) malloc(sizeof(RF_ShutdownList_t), 
   77                                            M_RAIDFRAME, M_WAITOK);
   78         ent->cleanup = cleanup;
   79         ent->arg = arg;
   80 #if RF_DEBUG_SHUTDOWN
   81         ent->file = file;
   82         ent->line = line;
   83 #endif
   84         ent->next = *listp;
   85         *listp = ent;
   86 }
   87 
   88 void
   89 rf_ShutdownList(RF_ShutdownList_t **list)
   90 {
   91         RF_ShutdownList_t *r, *next;
   92 #if RF_DEBUG_SHUTDOWN
   93         char   *file;
   94         int     line;
   95 #endif
   96 
   97         for (r = *list; r; r = next) {
   98                 next = r->next;
   99 #if RF_DEBUG_SHUTDOWN
  100                 file = r->file;
  101                 line = r->line;
  102 
  103                 if (rf_shutdownDebug) {
  104                         printf("call shutdown, created %s:%d\n", file, line);
  105                 }
  106 #endif
  107                 r->cleanup(r->arg);
  108 #if RF_DEBUG_SHUTDOWN
  109                 if (rf_shutdownDebug) {
  110                         printf("completed shutdown, created %s:%d\n", file, line);
  111                 }
  112 #endif
  113                 rf_FreeShutdownEnt(r);
  114         }
  115         *list = NULL;
  116 }

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