[src/trunk]: src/sys/rump/dev support file system snapshot device

[pooka <pooka%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/e0d20764d067
branches:  trunk
changeset: 753864:e0d20764d067
user:      pooka <pooka%NetBSD.org@localhost>
date:      Mon Apr 12 22:31:48 2010 +0000

description:
support file system snapshot device

diffstat:

 sys/rump/dev/Makefile.rumpdev         |   6 +-
 sys/rump/dev/lib/libfss/Makefile      |  15 ++++++++
 sys/rump/dev/lib/libfss/component.c   |  59 +++++++++++++++++++++++++++++++++++
 sys/rump/dev/lib/libfss/shlib_version |   4 ++
 4 files changed, 81 insertions(+), 3 deletions(-)

diffs (105 lines):

diff -r 0497be990303 -r e0d20764d067 sys/rump/dev/Makefile.rumpdev
--- a/sys/rump/dev/Makefile.rumpdev     Mon Apr 12 22:29:11 2010 +0000
+++ b/sys/rump/dev/Makefile.rumpdev     Mon Apr 12 22:31:48 2010 +0000
@@ -1,8 +1,8 @@
-#      $NetBSD: Makefile.rumpdev,v 1.10 2010/03/22 12:14:51 pooka Exp $
+#      $NetBSD: Makefile.rumpdev,v 1.11 2010/04/12 22:31:48 pooka Exp $
 #
 
-RUMPDEVLIST=   bpf cgd disk dm netsmb raidframe rnd sysmon ubt ucom    \
-               ugenhc ulpt umass usb wscons
+RUMPDEVLIST=   bpf cgd disk dm fss netsmb raidframe rnd sysmon         \
+               ubt ucom ugenhc ulpt umass usb wscons
 
 
 .for var in ${RUMPDEVLIST}
diff -r 0497be990303 -r e0d20764d067 sys/rump/dev/lib/libfss/Makefile
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/rump/dev/lib/libfss/Makefile  Mon Apr 12 22:31:48 2010 +0000
@@ -0,0 +1,15 @@
+#      $NetBSD: Makefile,v 1.1 2010/04/12 22:31:48 pooka Exp $
+#
+
+.PATH: ${.CURDIR}/../../../../dev
+
+LIB=   rumpdev_fss
+
+SRCS=   fss.c
+
+SRCS+= component.c
+
+CPPFLAGS+=     -I${RUMPTOP}/librump/rumpvfs
+
+.include <bsd.lib.mk>
+.include <bsd.klinks.mk>
diff -r 0497be990303 -r e0d20764d067 sys/rump/dev/lib/libfss/component.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/rump/dev/lib/libfss/component.c       Mon Apr 12 22:31:48 2010 +0000
@@ -0,0 +1,59 @@
+/*     $NetBSD: component.c,v 1.1 2010/04/12 22:31:48 pooka Exp $      */
+
+/*
+ * Copyright (c) 2009 Antti Kantee.  All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: component.c,v 1.1 2010/04/12 22:31:48 pooka Exp $");
+
+#include <sys/param.h>
+#include <sys/conf.h>
+#include <sys/device.h>
+#include <sys/stat.h>
+
+#include "rump_private.h"
+#include "rump_vfs_private.h"
+
+RUMP_COMPONENT(RUMP_COMPONENT_DEV)
+{
+       extern const struct bdevsw fss_bdevsw;
+       extern const struct cdevsw fss_cdevsw;
+       devmajor_t bmaj, cmaj;
+       int error;
+
+       bmaj = bdevsw_lookup_major(&fss_bdevsw);
+       cmaj = cdevsw_lookup_major(&fss_cdevsw);
+
+       if ((error = devsw_attach("fss", &fss_bdevsw, &bmaj,
+           &fss_cdevsw, &cmaj)) != 0)
+               panic("cannot attach fss: %d", error);
+
+       if ((error = rump_vfs_makedevnodes(S_IFBLK, "/dev/fss", '0',
+           bmaj, 0, 4)) != 0)
+               panic("cannot create cooked fss dev nodes: %d", error);
+       if ((error = rump_vfs_makedevnodes(S_IFCHR, "/dev/rfss", '0',
+           cmaj, 0, 4)) != 0)
+               panic("cannot create raw fss dev nodes: %d", error);
+}
diff -r 0497be990303 -r e0d20764d067 sys/rump/dev/lib/libfss/shlib_version
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/rump/dev/lib/libfss/shlib_version     Mon Apr 12 22:31:48 2010 +0000
@@ -0,0 +1,4 @@
+#      $NetBSD: shlib_version,v 1.1 2010/04/12 22:31:48 pooka Exp $
+#
+major=0
+minor=0