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/geom_int.h

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    1 /*-
    2  * Copyright (c) 2002 Poul-Henning Kamp
    3  * Copyright (c) 2002 Networks Associates Technology, Inc.
    4  * All rights reserved.
    5  *
    6  * This software was developed for the FreeBSD Project by Poul-Henning Kamp
    7  * and NAI Labs, the Security Research Division of Network Associates, Inc.
    8  * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
    9  * DARPA CHATS research program.
   10  *
   11  * Redistribution and use in source and binary forms, with or without
   12  * modification, are permitted provided that the following conditions
   13  * are met:
   14  * 1. Redistributions of source code must retain the above copyright
   15  *    notice, this list of conditions and the following disclaimer.
   16  * 2. Redistributions in binary form must reproduce the above copyright
   17  *    notice, this list of conditions and the following disclaimer in the
   18  *    documentation and/or other materials provided with the distribution.
   19  * 3. The names of the authors may not be used to endorse or promote
   20  *    products derived from this software without specific prior written
   21  *    permission.
   22  *
   23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   33  * SUCH DAMAGE.
   34  *
   35  * $FreeBSD: releng/11.0/sys/geom/geom_int.h 258683 2013-11-27 14:25:06Z mav $
   36  */
   37 
   38 LIST_HEAD(class_list_head, g_class);
   39 TAILQ_HEAD(g_tailq_head, g_geom);
   40 
   41 extern int g_collectstats;
   42 #define G_STATS_PROVIDERS       1       /* Collect I/O stats for providers */
   43 #define G_STATS_CONSUMERS       2       /* Collect I/O stats for consumers */
   44 
   45 extern int g_debugflags;
   46 /*
   47  * 1    G_T_TOPOLOGY
   48  * 2    G_T_BIO
   49  * 4    G_T_ACCESS
   50  * 8    (unused)
   51  * 16   Allow footshooting on rank#1 providers
   52  * 32   G_T_DETAILS
   53  */
   54 #define G_F_DISKIOCTL   64
   55 #define G_F_CTLDUMP     128
   56 
   57 /* geom_dump.c */
   58 void g_confxml(void *, int flag);
   59 void g_conf_specific(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp);
   60 void g_conf_printf_escaped(struct sbuf *sb, const char *fmt, ...);
   61 void g_confdot(void *, int flag);
   62 void g_conftxt(void *, int flag);
   63 
   64 /* geom_event.c */
   65 void g_event_init(void);
   66 void g_run_events(void);
   67 void g_do_wither(void);
   68 
   69 /* geom_subr.c */
   70 extern struct class_list_head g_classes;
   71 extern char *g_wait_event, *g_wait_sim, *g_wait_up, *g_wait_down;
   72 void g_wither_washer(void);
   73 
   74 /* geom_io.c */
   75 void g_io_init(void);
   76 void g_io_schedule_down(struct thread *tp);
   77 void g_io_schedule_up(struct thread *tp);
   78 
   79 /* geom_kern.c / geom_kernsim.c */
   80 void g_init(void);
   81 extern int g_shutdown;
   82 extern int g_notaste;
   83 
   84 /* geom_ctl.c */
   85 void g_ctl_init(void);

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