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head/sys/geom/label/g_label_flashmap.c
Property | Old Value | New Value |
---|---|---|
svn:eol-style | null | native \ No newline at end of property |
svn:keywords | null | FreeBSD=%H \ No newline at end of property |
svn:mime-type | null | text/plain \ No newline at end of property |
/*- | |||||
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD | |||||
* | |||||
* 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> | |||||
#define G_LABEL_FLASHMAP_SLICE_DIR "flash" | |||||
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_dir = G_LABEL_FLASHMAP_SLICE_DIR, | |||||
.ld_enabled = 1 | |||||
}; | |||||
G_LABEL_INIT(flashmap, g_label_flashmap, "Create device nodes for Flashmap labels"); |