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authorphk <phk@FreeBSD.org>1997-10-16 17:48:22 +0000
committerphk <phk@FreeBSD.org>1997-10-16 17:48:22 +0000
commit49953d2a8b5e57272bcc9a4179f881d6b847830b (patch)
treed6dd46aba36daca2ed7aab68457a2ee449497c6c /sys/kern/vfs_default.c
parentd7f631ac870de5bd62b3044580d85ab920cb9cc8 (diff)
downloadFreeBSD-src-49953d2a8b5e57272bcc9a4179f881d6b847830b.zip
FreeBSD-src-49953d2a8b5e57272bcc9a4179f881d6b847830b.tar.gz
Oops. forgot the blasted cvs add.
Pointed hat sent from: Karl Denninger <karl@Mcs.Net>
Diffstat (limited to 'sys/kern/vfs_default.c')
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1 files changed, 101 insertions, 0 deletions
diff --git a/sys/kern/vfs_default.c b/sys/kern/vfs_default.c
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+/*
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed
+ * to Berkeley by John Heidemann of the UCLA Ficus project.
+ *
+ * Source: * @(#)i405_init.c 2.10 92/04/27 UCLA Ficus project
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS 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/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/mount.h>
+#include <sys/vnode.h>
+
+int vop_notsupp __P((struct vop_generic_args *ap));
+static int vop_nostrategy __P((struct vop_strategy_args *));
+
+/*
+ * This vnode table stores what we want to do if the filesystem doesn't
+ * implement a particular VOP.
+ *
+ * If there is no specific entry here, we will return EOPNOTSUPP.
+ *
+ */
+
+vop_t **default_vnodeop_p;
+static struct vnodeopv_entry_desc default_vnodeop_entries[] = {
+ { &vop_default_desc, (vop_t *) vop_notsupp },
+ { &vop_abortop_desc, (vop_t *) nullop },
+ { &vop_bwrite_desc, (vop_t *) vn_bwrite },
+ { &vop_lease_desc, (vop_t *) lease_check },
+ { &vop_poll_desc, (vop_t *) vop_nopoll },
+ { &vop_revoke_desc, (vop_t *) vop_revoke },
+ { &vop_strategy_desc, (vop_t *) vop_nostrategy },
+ { NULL, NULL }
+};
+
+static struct vnodeopv_desc default_vnodeop_opv_desc =
+ { &default_vnodeop_p, default_vnodeop_entries };
+
+VNODEOP_SET(default_vnodeop_opv_desc);
+
+int
+vop_notsupp(struct vop_generic_args *ap)
+{
+ /*
+ printf("vn_notsupp[%s]\n", ap->a_desc->vdesc_name);
+ */
+
+ return (EOPNOTSUPP);
+}
+
+int
+vn_defaultop(struct vop_generic_args *ap)
+{
+
+ return (VOCALL(default_vnodeop_p, ap->a_desc->vdesc_offset, ap));
+}
+
+
+static int
+vop_nostrategy (struct vop_strategy_args *ap)
+{
+ printf("No strategy for buffer at %p\n", ap->a_bp);
+ vprint("", ap->a_bp->b_vp);
+ ap->a_bp->b_flags |= B_ERROR;
+ ap->a_bp->b_error = EOPNOTSUPP;
+ biodone(ap->a_bp);
+ return (EOPNOTSUPP);
+}
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