freebsd-dev/sys/geom/label/g_label_flashmap.c
Warner Losh 4d846d260e spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD
The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with:		pfg
MFC After:		3 days
Sponsored by:		Netflix
2023-05-12 10:44:03 -06:00

76 lines
2.5 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2019 Ian Lepore <ian@FreeBSD.org>
*
* 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 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 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>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/slicer.h>
#include <geom/geom.h>
#include <geom/geom_flashmap.h>
#include <geom/geom_slice.h>
#include <geom/label/g_label.h>
static void
g_label_flashmap_taste(struct g_consumer *cp, char *label, size_t size)
{
struct g_flashmap *gfp;
struct g_slicer *gsp;
struct g_provider *pp;
g_topology_assert_not();
pp = cp->provider;
label[0] = '\0';
/* We taste only partitions handled by flashmap */
if (strncmp(pp->geom->class->name, FLASHMAP_CLASS_NAME,
sizeof(FLASHMAP_CLASS_NAME)) != 0)
return;
gsp = (struct g_slicer *)pp->geom->softc;
gfp = (struct g_flashmap *)gsp->softc;
/* If it's handled by flashmap it should have a label, but be safe. */
if (gfp->labels[pp->index] == NULL)
return;
strlcpy(label, gfp->labels[pp->index], size);
}
struct g_label_desc g_label_flashmap = {
.ld_taste = g_label_flashmap_taste,
.ld_dirprefix = "flash/",
.ld_enabled = 1
};
G_LABEL_INIT(flashmap, g_label_flashmap, "Create device nodes for Flashmap labels");