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2293567c8c
Add --config for overriding most config file settings from cmdline. Quote arguments when printing command line. Remove linefeed from 'initialising logging' message. Add 'Completed' debug message. Don't attempt library exit after reloading config files. Always compile with libdevmapper, even if device-mapper is disabled.
100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
/*
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* Copyright (C) 2004 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU General Public License v.2.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "lib.h"
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#include "toolcontext.h"
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#include "segtype.h"
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#include "display.h"
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#include "text_export.h"
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#include "text_import.h"
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#include "config.h"
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#include "str_list.h"
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#include "targets.h"
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#include "lvm-string.h"
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#include "activate.h"
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static const char *_zero_name(const struct lv_segment *seg)
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{
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return seg->segtype->name;
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}
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static int _zero_merge_segments(struct lv_segment *seg1, struct lv_segment *seg2)
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{
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seg1->len += seg2->len;
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seg1->area_len += seg2->area_len;
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return 1;
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}
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#ifdef DEVMAPPER_SUPPORT
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static int _zero_add_target_line(struct dev_manager *dm __attribute((unused)),
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struct dm_pool *mem __attribute((unused)),
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struct cmd_context *cmd __attribute((unused)),
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void **target_state __attribute((unused)),
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struct lv_segment *seg __attribute((unused)),
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struct dm_tree_node *node,uint64_t len,
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uint32_t *pvmove_mirror_count __attribute((unused)))
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{
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return dm_tree_node_add_zero_target(node, len);
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}
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static int _zero_target_present(void)
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{
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static int _zero_checked = 0;
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static int _zero_present = 0;
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if (!_zero_checked)
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_zero_present = target_present("zero", 0);
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_zero_checked = 1;
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return _zero_present;
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}
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#endif
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static void _zero_destroy(const struct segment_type *segtype)
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{
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dm_free((void *) segtype);
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}
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static struct segtype_handler _zero_ops = {
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.name = _zero_name,
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.merge_segments = _zero_merge_segments,
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#ifdef DEVMAPPER_SUPPORT
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.add_target_line = _zero_add_target_line,
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.target_present = _zero_target_present,
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#endif
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.destroy = _zero_destroy,
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};
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struct segment_type *init_zero_segtype(struct cmd_context *cmd)
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{
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struct segment_type *segtype = dm_malloc(sizeof(*segtype));
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if (!segtype) {
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stack;
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return NULL;
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}
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segtype->cmd = cmd;
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segtype->ops = &_zero_ops;
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segtype->name = "zero";
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segtype->private = NULL;
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segtype->flags = SEG_CAN_SPLIT | SEG_VIRTUAL | SEG_CANNOT_BE_ZEROED;
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log_very_verbose("Initialised segtype: %s", segtype->name);
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return segtype;
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}
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