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https://github.com/troglobit/finit.git
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Joachim Nilsson
078982d3ec
This patch adds initial support for handling MD RAID arrays. Adding a pass at the very end of the shutdown sequence to signal any external RAID controller to clear its state before we proceed to halt/reboot. Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
/* Handle MD arrays
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*
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* Copyright (c) 2016 Joachim Nilsson <troglobit@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <glob.h>
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#include <stdio.h>
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#include <string.h>
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#include "helpers.h"
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static glob_t *get_arrays(void)
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{
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static glob_t arrays;
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glob("/sys/block/md*", 0, NULL, &arrays);
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if (arrays.gl_pathc > 0)
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return &arrays;
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return NULL;
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}
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/*
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* If system has an MD raid, we must tell it to stop before continuing
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* with the shutdown. Some controller cards, in particular the Intel(R)
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* Matrix Storage Manager, must be properly notified.
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*/
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void mdadm_wait(void)
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{
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size_t i;
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glob_t *gl;
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char cmd[160];
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/* Setup kernel specific settings, e.g. allow broadcast ping, etc. */
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gl = get_arrays();
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if (gl) {
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for (i = 0; i < gl->gl_pathc; i++) {
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char *array;
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array = basename(gl->gl_pathv[i]);
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snprintf(cmd, sizeof(cmd), "mdadm --wait-clean /dev/%s >/dev/null", array);
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run_interactive(cmd, "Marking MD array %s as clean", array);
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}
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globfree(gl);
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}
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}
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/**
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* Local Variables:
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* indent-tabs-mode: t
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* c-file-style: "linux"
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* End:
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*/
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