show all mounts command for ddb. From mickey a long time ago.

3 files changed, 31 insertions, 4 deletions

diff --git a/share/man/man4/ddb.4 b/share/man/man4/ddb.4
index 05726373f24..d48dc4a3291 100644
--- a/share/man/man4/ddb.4
+++ b/share/man/man4/ddb.4
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: ddb.4,v 1.51 2007/05/31 19:19:50 jmc Exp $
+.\"	$OpenBSD: ddb.4,v 1.52 2008/03/23 12:31:56 miod Exp $
 .\"	$NetBSD: ddb.4,v 1.5 1994/11/30 16:22:09 jtc Exp $
 .\"
 .\" Mach Operating System
@@ -25,7 +25,7 @@
 .\" any improvements or extensions that they make and grant Carnegie Mellon
 .\" the rights to redistribute these changes.
 .\"
-.Dd $Mdocdate: May 31 2007 $
+.Dd $Mdocdate: March 23 2008 $
 .Dt DDB 4
 .Os
 .Sh NAME
@@ -776,6 +776,7 @@ wait channel address, and wait channel message.
 .\" --------------------
 .It Ic show all callout
 Display the contents of the callout table.
+.\" --------------------
 .It Ic show all pools Op Cm /a
 Display information about all system pools in a format similar to
 .Xr vmstat 8 .
@@ -786,6 +787,16 @@ Displays
 .Dq interesting
 address information.
 .El
+.\" --------------------
+.It Ic show all mounts Op Cm /f
+Display information on all mounted filesystems.
+.Pp
+.Bl -tag -width foo -compact
+.It Cm /f
+For each filesystem, list all its struct vnode addresses.
+These addresses can be used in the
+.Ic show vnode
+command.
 .El
 .It Ic callout
 A synonym for the
diff --git a/sys/ddb/db_command.c b/sys/ddb/db_command.c
index 9eb3bf028cf..2c87db84340 100644
--- a/sys/ddb/db_command.c
+++ b/sys/ddb/db_command.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: db_command.c,v 1.48 2007/11/14 17:52:36 miod Exp $	*/
+/*	$OpenBSD: db_command.c,v 1.49 2008/03/23 12:31:57 miod Exp $	*/
 /*	$NetBSD: db_command.c,v 1.20 1996/03/30 22:30:05 christos Exp $	*/
 
 /* 
@@ -38,6 +38,7 @@
 #include <sys/pool.h>
 #include <sys/msgbuf.h>
 #include <sys/malloc.h>
+#include <sys/mount.h>
 
 #include <uvm/uvm_extern.h>
 #include <machine/db_machdep.h>		/* type definitions */
@@ -333,6 +334,19 @@ db_mount_print_cmd(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
 	vfs_mount_print((struct mount *) addr, full, db_printf);
 }
 
+void
+db_show_all_mounts(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
+{
+	boolean_t full = FALSE;
+	struct mount *mp;
+
+	if (modif[0] == 'f')
+		full = TRUE;
+
+	CIRCLEQ_FOREACH(mp, &mountlist, mnt_list)
+		vfs_mount_print(mp, full, db_printf);
+}
+
 /*ARGSUSED*/
 void
 db_object_print_cmd(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
@@ -418,6 +432,7 @@ struct db_command db_show_all_cmds[] = {
 	{ "procs",	db_show_all_procs,	0, NULL },
 	{ "callout",	db_show_callout,	0, NULL },
 	{ "pools",	db_show_all_pools,	0, NULL },
+	{ "mounts",	db_show_all_mounts,	0, NULL },
 	{ NULL, 	NULL, 			0, NULL }
 };
 
diff --git a/sys/ddb/db_command.h b/sys/ddb/db_command.h
index e1413bffcbc..4662acf7b6c 100644
--- a/sys/ddb/db_command.h
+++ b/sys/ddb/db_command.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: db_command.h,v 1.20 2006/07/11 21:17:58 mickey Exp $	*/
+/*	$OpenBSD: db_command.h,v 1.21 2008/03/23 12:31:58 miod Exp $	*/
 /*	$NetBSD: db_command.h,v 1.8 1996/02/05 01:56:55 christos Exp $	*/
 
 /* 
@@ -42,6 +42,7 @@ void db_buf_print_cmd(db_expr_t, int, db_expr_t, char *);
 void db_map_print_cmd(db_expr_t, int, db_expr_t, char *);
 void db_malloc_print_cmd(db_expr_t, int, db_expr_t, char *);
 void db_mount_print_cmd(db_expr_t, int, db_expr_t, char *);
+void db_show_all_mounts(db_expr_t, int, db_expr_t, char *);
 void db_object_print_cmd(db_expr_t, int, db_expr_t, char *);
 void db_page_print_cmd(db_expr_t, int, db_expr_t, char *);
 void db_extent_print_cmd(db_expr_t, int, db_expr_t, char *);