795c5f365e
routines out. While there, also simplify the creation of label paths a little bit by requiring the / suffix for label directory prefixes (ld_dir renamed to ld_dirprefix to indicate the change) and stop defining macros for these when they are only used once. Reviewed by: cem MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D25597
76 lines
2.5 KiB
C
76 lines
2.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2019 Ian Lepore <ian@FreeBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/slicer.h>
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#include <geom/geom.h>
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#include <geom/geom_flashmap.h>
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#include <geom/geom_slice.h>
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#include <geom/label/g_label.h>
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static void
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g_label_flashmap_taste(struct g_consumer *cp, char *label, size_t size)
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{
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struct g_flashmap *gfp;
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struct g_slicer *gsp;
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struct g_provider *pp;
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g_topology_assert_not();
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pp = cp->provider;
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label[0] = '\0';
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/* We taste only partitions handled by flashmap */
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if (strncmp(pp->geom->class->name, FLASHMAP_CLASS_NAME,
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sizeof(FLASHMAP_CLASS_NAME)) != 0)
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return;
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gsp = (struct g_slicer *)pp->geom->softc;
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gfp = (struct g_flashmap *)gsp->softc;
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/* If it's handled by flashmap it should have a label, but be safe. */
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if (gfp->labels[pp->index] == NULL)
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return;
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strlcpy(label, gfp->labels[pp->index], size);
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}
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struct g_label_desc g_label_flashmap = {
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.ld_taste = g_label_flashmap_taste,
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.ld_dirprefix = "flash/",
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.ld_enabled = 1
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};
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G_LABEL_INIT(flashmap, g_label_flashmap, "Create device nodes for Flashmap labels");
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