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  * SPDX-License-Identifier: BSD-3-Clause
    3  *
    4  * Copyright (c) 2002 Poul-Henning Kamp
    5  * Copyright (c) 2002 Networks Associates Technology, Inc.
    6  * All rights reserved.
    7  *
    8  * This software was developed for the FreeBSD Project by Poul-Henning Kamp
    9  * and NAI Labs, the Security Research Division of Network Associates, Inc.
   10  * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
   11  * DARPA CHATS research program.
   12  *
   13  * Redistribution and use in source and binary forms, with or without
   14  * modification, are permitted provided that the following conditions
   15  * are met:
   16  * 1. Redistributions of source code must retain the above copyright
   17  *    notice, this list of conditions and the following disclaimer.
   18  * 2. Redistributions in binary form must reproduce the above copyright
   19  *    notice, this list of conditions and the following disclaimer in the
   20  *    documentation and/or other materials provided with the distribution.
   21  * 3. The names of the authors may not be used to endorse or promote
   22  *    products derived from this software without specific prior written
   23  *    permission.
   24  *
   25  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   35  * SUCH DAMAGE.
   36  *
   37  * $FreeBSD: releng/12.0/sys/geom/geom_int.h 326270 2017-11-27 15:17:37Z pfg $
   38  */
   39 
   40 LIST_HEAD(class_list_head, g_class);
   41 TAILQ_HEAD(g_tailq_head, g_geom);
   42 
   43 extern int g_collectstats;
   44 #define G_STATS_PROVIDERS       1       /* Collect I/O stats for providers */
   45 #define G_STATS_CONSUMERS       2       /* Collect I/O stats for consumers */
   46 
   47 extern int g_debugflags;
   48 /*
   49  * 1    G_T_TOPOLOGY
   50  * 2    G_T_BIO
   51  * 4    G_T_ACCESS
   52  * 8    (unused)
   53  * 16   Allow footshooting on rank#1 providers
   54  * 32   G_T_DETAILS
   55  */
   56 #define G_F_DISKIOCTL   64
   57 #define G_F_CTLDUMP     128
   58 
   59 /* geom_dump.c */
   60 void g_confxml(void *, int flag);
   61 void g_conf_specific(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp);
   62 void g_conf_printf_escaped(struct sbuf *sb, const char *fmt, ...);
   63 void g_confdot(void *, int flag);
   64 void g_conftxt(void *, int flag);
   65 
   66 /* geom_event.c */
   67 void g_event_init(void);
   68 void g_run_events(void);
   69 void g_do_wither(void);
   70 
   71 /* geom_subr.c */
   72 extern struct class_list_head g_classes;
   73 extern char *g_wait_event, *g_wait_sim, *g_wait_up, *g_wait_down;
   74 void g_wither_washer(void);
   75 
   76 /* geom_io.c */
   77 void g_io_init(void);
   78 void g_io_schedule_down(struct thread *tp);
   79 void g_io_schedule_up(struct thread *tp);
   80 
   81 /* geom_kern.c / geom_kernsim.c */
   82 void g_init(void);
   83 extern int g_shutdown;
   84 extern int g_notaste;
   85 
   86 /* geom_ctl.c */
   87 void g_ctl_init(void);

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