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mirror of git://sourceware.org/git/lvm2.git synced 2024-12-21 13:34:40 +03:00
lvm2/lib/error/errseg.c
Zdenek Kabelac 286cd2006b cleanup: drop unneeded included header files
This headers were not resolving anything used for compiled .c files.
Remove unused util.c file.
2012-08-23 14:37:20 +02:00

113 lines
3.0 KiB
C

/*
* Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "lib.h"
#include "toolcontext.h"
#include "segtype.h"
#include "display.h"
#include "config.h"
#include "str_list.h"
#include "activate.h"
#include "str_list.h"
static const char *_errseg_name(const struct lv_segment *seg)
{
return seg->segtype->name;
}
static int _errseg_merge_segments(struct lv_segment *seg1, struct lv_segment *seg2)
{
seg1->len += seg2->len;
seg1->area_len += seg2->area_len;
return 1;
}
#ifdef DEVMAPPER_SUPPORT
static int _errseg_add_target_line(struct dev_manager *dm __attribute__((unused)),
struct dm_pool *mem __attribute__((unused)),
struct cmd_context *cmd __attribute__((unused)),
void **target_state __attribute__((unused)),
struct lv_segment *seg __attribute__((unused)),
const struct lv_activate_opts *laopts __attribute__((unused)),
struct dm_tree_node *node, uint64_t len,
uint32_t *pvmove_mirror_count __attribute__((unused)))
{
return dm_tree_node_add_error_target(node, len);
}
static int _errseg_target_present(struct cmd_context *cmd,
const struct lv_segment *seg __attribute__((unused)),
unsigned *attributes __attribute__((unused)))
{
static int _errseg_checked = 0;
static int _errseg_present = 0;
/* Reported truncated in older kernels */
if (!_errseg_checked &&
(target_present(cmd, "error", 0) ||
target_present(cmd, "erro", 0)))
_errseg_present = 1;
_errseg_checked = 1;
return _errseg_present;
}
#endif
static int _errseg_modules_needed(struct dm_pool *mem,
const struct lv_segment *seg __attribute__((unused)),
struct dm_list *modules)
{
if (!str_list_add(mem, modules, "error")) {
log_error("error module string list allocation failed");
return 0;
}
return 1;
}
static void _errseg_destroy(struct segment_type *segtype)
{
dm_free(segtype);
}
static struct segtype_handler _error_ops = {
.name = _errseg_name,
.merge_segments = _errseg_merge_segments,
#ifdef DEVMAPPER_SUPPORT
.add_target_line = _errseg_add_target_line,
.target_present = _errseg_target_present,
#endif
.modules_needed = _errseg_modules_needed,
.destroy = _errseg_destroy,
};
struct segment_type *init_error_segtype(struct cmd_context *cmd)
{
struct segment_type *segtype = dm_zalloc(sizeof(*segtype));
if (!segtype)
return_NULL;
segtype->cmd = cmd;
segtype->ops = &_error_ops;
segtype->name = "error";
segtype->private = NULL;
segtype->flags = SEG_CAN_SPLIT | SEG_VIRTUAL | SEG_CANNOT_BE_ZEROED;
log_very_verbose("Initialised segtype: %s", segtype->name);
return segtype;
}