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30c13eff37
Use the field 'origin' for reporting external origin lv name. For thin volumes with external origin, report the size of external origin size via: lvs -o+origin_size
664 lines
15 KiB
C
664 lines
15 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2013 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 Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser 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 "metadata.h"
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#include "display.h"
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#include "activate.h"
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#include "toolcontext.h"
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#include "segtype.h"
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#include "str_list.h"
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#include <time.h>
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#include <sys/utsname.h>
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static struct utsname _utsname;
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static int _utsinit = 0;
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static char *_format_pvsegs(struct dm_pool *mem, const struct lv_segment *seg,
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int range_format)
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{
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unsigned int s;
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const char *name = NULL;
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uint32_t extent = 0;
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char extent_str[32];
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if (!dm_pool_begin_object(mem, 256)) {
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log_error("dm_pool_begin_object failed");
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return NULL;
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}
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for (s = 0; s < seg->area_count; s++) {
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switch (seg_type(seg, s)) {
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case AREA_LV:
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name = seg_lv(seg, s)->name;
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extent = seg_le(seg, s);
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break;
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case AREA_PV:
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name = dev_name(seg_dev(seg, s));
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extent = seg_pe(seg, s);
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break;
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case AREA_UNASSIGNED:
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name = "unassigned";
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extent = 0;
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break;
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default:
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log_error(INTERNAL_ERROR "Unknown area segtype.");
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return NULL;
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}
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if (!dm_pool_grow_object(mem, name, strlen(name))) {
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log_error("dm_pool_grow_object failed");
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return NULL;
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}
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if (dm_snprintf(extent_str, sizeof(extent_str),
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"%s%" PRIu32 "%s",
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range_format ? ":" : "(", extent,
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range_format ? "-" : ")") < 0) {
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log_error("Extent number dm_snprintf failed");
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return NULL;
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}
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if (!dm_pool_grow_object(mem, extent_str, strlen(extent_str))) {
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log_error("dm_pool_grow_object failed");
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return NULL;
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}
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if (range_format) {
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if (dm_snprintf(extent_str, sizeof(extent_str),
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"%" PRIu32, extent + seg->area_len - 1) < 0) {
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log_error("Extent number dm_snprintf failed");
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return NULL;
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}
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if (!dm_pool_grow_object(mem, extent_str, strlen(extent_str))) {
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log_error("dm_pool_grow_object failed");
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return NULL;
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}
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}
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if ((s != seg->area_count - 1) &&
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!dm_pool_grow_object(mem, range_format ? " " : ",", 1)) {
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log_error("dm_pool_grow_object failed");
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return NULL;
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}
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}
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if (!dm_pool_grow_object(mem, "\0", 1)) {
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log_error("dm_pool_grow_object failed");
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return NULL;
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}
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return dm_pool_end_object(mem);
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}
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char *lvseg_devices(struct dm_pool *mem, const struct lv_segment *seg)
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{
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return _format_pvsegs(mem, seg, 0);
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}
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char *lvseg_seg_pe_ranges(struct dm_pool *mem, const struct lv_segment *seg)
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{
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return _format_pvsegs(mem, seg, 1);
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}
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char *lvseg_tags_dup(const struct lv_segment *seg)
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{
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return tags_format_and_copy(seg->lv->vg->vgmem, &seg->tags);
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}
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char *lvseg_segtype_dup(struct dm_pool *mem, const struct lv_segment *seg)
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{
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return dm_pool_strdup(mem, seg->segtype->ops->name(seg));
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}
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char *lvseg_discards_dup(struct dm_pool *mem, const struct lv_segment *seg)
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{
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return dm_pool_strdup(mem, get_pool_discards_name(seg->discards));
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}
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uint64_t lvseg_chunksize(const struct lv_segment *seg)
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{
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uint64_t size;
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if (lv_is_cow(seg->lv))
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size = (uint64_t) find_cow(seg->lv)->chunk_size;
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else if (lv_is_thin_pool(seg->lv))
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size = (uint64_t) seg->chunk_size;
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else
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size = UINT64_C(0);
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return size;
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}
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uint64_t lvseg_start(const struct lv_segment *seg)
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{
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return (uint64_t) seg->le * seg->lv->vg->extent_size;
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}
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uint64_t lvseg_size(const struct lv_segment *seg)
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{
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return (uint64_t) seg->len * seg->lv->vg->extent_size;
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}
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uint32_t lv_kernel_read_ahead(const struct logical_volume *lv)
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{
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struct lvinfo info;
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if (!lv_info(lv->vg->cmd, lv, 0, &info, 0, 1) || !info.exists)
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return UINT32_MAX;
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return info.read_ahead;
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}
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char *lv_origin_dup(struct dm_pool *mem, const struct logical_volume *lv)
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{
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if (lv_is_cow(lv))
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return lv_name_dup(mem, origin_from_cow(lv));
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if (lv_is_thin_volume(lv) && first_seg(lv)->origin)
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return lv_name_dup(mem, first_seg(lv)->origin);
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if (lv_is_thin_volume(lv) && first_seg(lv)->external_lv)
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return lv_name_dup(mem, first_seg(lv)->external_lv);
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return NULL;
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}
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char *lv_name_dup(struct dm_pool *mem, const struct logical_volume *lv)
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{
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return dm_pool_strdup(mem, lv->name);
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}
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char *lv_modules_dup(struct dm_pool *mem, const struct logical_volume *lv)
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{
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struct dm_list *modules;
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if (!(modules = str_list_create(mem))) {
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log_error("modules str_list allocation failed");
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return NULL;
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}
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if (!list_lv_modules(mem, lv, modules))
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return_NULL;
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return tags_format_and_copy(mem, modules);
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}
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char *lv_mirror_log_dup(struct dm_pool *mem, const struct logical_volume *lv)
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{
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struct lv_segment *seg;
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dm_list_iterate_items(seg, &lv->segments)
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if (seg_is_mirrored(seg) && seg->log_lv)
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return dm_pool_strdup(mem, seg->log_lv->name);
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return NULL;
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}
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char *lv_pool_lv_dup(struct dm_pool *mem, const struct logical_volume *lv)
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{
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struct lv_segment *seg;
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dm_list_iterate_items(seg, &lv->segments)
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if (seg_is_thin_volume(seg) && seg->pool_lv)
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return dm_pool_strdup(mem, seg->pool_lv->name);
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return NULL;
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}
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char *lv_data_lv_dup(struct dm_pool *mem, const struct logical_volume *lv)
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{
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return lv_is_thin_pool(lv) ?
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dm_pool_strdup(mem, seg_lv(first_seg(lv), 0)->name) : NULL;
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}
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char *lv_metadata_lv_dup(struct dm_pool *mem, const struct logical_volume *lv)
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{
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return lv_is_thin_pool(lv) ?
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dm_pool_strdup(mem, first_seg(lv)->metadata_lv->name) : NULL;
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}
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const char *lv_layer(const struct logical_volume *lv)
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{
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if (lv_is_thin_pool(lv))
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return "tpool";
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else if (lv_is_origin(lv) || lv_is_external_origin(lv))
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return "real";
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return NULL;
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}
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int lv_kernel_minor(const struct logical_volume *lv)
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{
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struct lvinfo info;
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if (lv_info(lv->vg->cmd, lv, 0, &info, 0, 0) && info.exists)
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return info.minor;
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return -1;
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}
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int lv_kernel_major(const struct logical_volume *lv)
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{
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struct lvinfo info;
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if (lv_info(lv->vg->cmd, lv, 0, &info, 0, 0) && info.exists)
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return info.major;
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return -1;
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}
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char *lv_convert_lv_dup(struct dm_pool *mem, const struct logical_volume *lv)
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{
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struct lv_segment *seg;
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if (lv->status & (CONVERTING|MIRRORED)) {
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seg = first_seg(lv);
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/* Temporary mirror is always area_num == 0 */
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if (seg_type(seg, 0) == AREA_LV &&
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is_temporary_mirror_layer(seg_lv(seg, 0)))
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return dm_pool_strdup(mem, seg_lv(seg, 0)->name);
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}
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return NULL;
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}
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char *lv_move_pv_dup(struct dm_pool *mem, const struct logical_volume *lv)
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{
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struct lv_segment *seg;
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dm_list_iterate_items(seg, &lv->segments) {
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if (seg->status & PVMOVE)
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return dm_pool_strdup(mem, dev_name(seg_dev(seg, 0)));
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}
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return NULL;
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}
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uint64_t lv_origin_size(const struct logical_volume *lv)
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{
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if (lv_is_cow(lv))
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return (uint64_t) find_cow(lv)->len * lv->vg->extent_size;
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if (lv_is_thin_volume(lv) && first_seg(lv)->external_lv)
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return first_seg(lv)->external_lv->size;
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if (lv_is_origin(lv))
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return lv->size;
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return 0;
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}
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uint64_t lv_metadata_size(const struct logical_volume *lv)
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{
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return lv_is_thin_pool(lv) ? first_seg(lv)->metadata_lv->size : 0;
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}
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char *lv_path_dup(struct dm_pool *mem, const struct logical_volume *lv)
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{
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char *repstr;
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size_t len;
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if (!*lv->vg->name)
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return dm_pool_strdup(mem, "");
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len = strlen(lv->vg->cmd->dev_dir) + strlen(lv->vg->name) +
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strlen(lv->name) + 2;
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if (!(repstr = dm_pool_zalloc(mem, len))) {
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log_error("dm_pool_alloc failed");
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return 0;
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}
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if (dm_snprintf(repstr, len, "%s%s/%s",
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lv->vg->cmd->dev_dir, lv->vg->name, lv->name) < 0) {
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log_error("lvpath snprintf failed");
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return 0;
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}
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return repstr;
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}
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char *lv_uuid_dup(const struct logical_volume *lv)
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{
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return id_format_and_copy(lv->vg->vgmem, &lv->lvid.id[1]);
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}
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char *lv_tags_dup(const struct logical_volume *lv)
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{
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return tags_format_and_copy(lv->vg->vgmem, &lv->tags);
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}
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uint64_t lv_size(const struct logical_volume *lv)
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{
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return lv->size;
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}
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static int _lv_mimage_in_sync(const struct logical_volume *lv)
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{
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percent_t percent;
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struct lv_segment *mirror_seg = find_mirror_seg(first_seg(lv));
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if (!(lv->status & MIRROR_IMAGE) || !mirror_seg)
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return_0;
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if (!lv_mirror_percent(lv->vg->cmd, mirror_seg->lv, 0, &percent,
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NULL))
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return_0;
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return (percent == PERCENT_100) ? 1 : 0;
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}
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static int _lv_raid_image_in_sync(const struct logical_volume *lv)
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{
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unsigned s;
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percent_t percent;
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char *raid_health;
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struct lv_segment *raid_seg;
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/* If the LV is not active, it doesn't make sense to check status */
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if (!lv_is_active(lv))
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return 0; /* Assume not in-sync */
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if (!(lv->status & RAID_IMAGE)) {
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log_error(INTERNAL_ERROR "%s is not a RAID image", lv->name);
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return 0;
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}
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raid_seg = get_only_segment_using_this_lv(first_seg(lv)->lv);
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if (!raid_seg) {
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log_error("Failed to find RAID segment for %s", lv->name);
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return 0;
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}
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if (!seg_is_raid(raid_seg)) {
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log_error("%s on %s is not a RAID segment",
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raid_seg->lv->name, lv->name);
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return 0;
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}
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if (!lv_raid_percent(raid_seg->lv, &percent))
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return_0;
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if (percent == PERCENT_100)
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return 1;
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/* Find out which sub-LV this is. */
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for (s = 0; s < raid_seg->area_count; s++)
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if (seg_lv(raid_seg, s) == lv)
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break;
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if (s == raid_seg->area_count) {
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log_error(INTERNAL_ERROR
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"sub-LV %s was not found in raid segment",
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lv->name);
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return 0;
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}
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if (!lv_raid_dev_health(raid_seg->lv, &raid_health))
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return_0;
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if (raid_health[s] == 'A')
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return 1;
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return 0;
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}
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/*
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* _lv_raid_healthy
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* @lv: A RAID_IMAGE, RAID_META, or RAID logical volume.
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*
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* Returns: 1 if healthy, 0 if device is not health
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*/
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static int _lv_raid_healthy(const struct logical_volume *lv)
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{
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unsigned s;
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char *raid_health;
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struct lv_segment *raid_seg;
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/* If the LV is not active, it doesn't make sense to check status */
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if (!lv_is_active(lv))
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return 1; /* assume healthy */
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if (!lv_is_raid_type(lv)) {
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log_error(INTERNAL_ERROR "%s is not of RAID type", lv->name);
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return 0;
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}
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if (lv->status & RAID)
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raid_seg = first_seg(lv);
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else
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raid_seg = get_only_segment_using_this_lv(first_seg(lv)->lv);
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if (!raid_seg) {
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log_error("Failed to find RAID segment for %s", lv->name);
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return 0;
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}
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if (!seg_is_raid(raid_seg)) {
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log_error("%s on %s is not a RAID segment",
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raid_seg->lv->name, lv->name);
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return 0;
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}
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if (!lv_raid_dev_health(raid_seg->lv, &raid_health))
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return_0;
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if (lv->status & RAID) {
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if (strchr(raid_health, 'D'))
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return 0;
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else
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return 1;
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}
|
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|
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/* Find out which sub-LV this is. */
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for (s = 0; s < raid_seg->area_count; s++)
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if (((lv->status & RAID_IMAGE) && (seg_lv(raid_seg, s) == lv)) ||
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((lv->status & RAID_META) && (seg_metalv(raid_seg,s) == lv)))
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break;
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if (s == raid_seg->area_count) {
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log_error(INTERNAL_ERROR
|
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"sub-LV %s was not found in raid segment",
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lv->name);
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return 0;
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}
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|
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if (raid_health[s] == 'D')
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return 0;
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return 1;
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}
|
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char *lv_attr_dup(struct dm_pool *mem, const struct logical_volume *lv)
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{
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percent_t snap_percent;
|
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struct lvinfo info;
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struct lv_segment *seg;
|
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char *repstr;
|
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|
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if (!(repstr = dm_pool_zalloc(mem, 10))) {
|
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log_error("dm_pool_alloc failed");
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return 0;
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}
|
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|
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/* Blank if this is a "free space" LV. */
|
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if (!*lv->name)
|
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goto out;
|
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if (lv->status & PVMOVE)
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repstr[0] = 'p';
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else if (lv->status & CONVERTING)
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repstr[0] = 'c';
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/* Origin takes precedence over mirror and thin volume */
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else if (lv_is_origin(lv))
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repstr[0] = (lv_is_merging_origin(lv)) ? 'O' : 'o';
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else if (lv->status & RAID)
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repstr[0] = (lv->status & LV_NOTSYNCED) ? 'R' : 'r';
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else if (lv->status & MIRRORED)
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repstr[0] = (lv->status & LV_NOTSYNCED) ? 'M' : 'm';
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else if (lv_is_thin_volume(lv))
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repstr[0] = 'V';
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else if (lv->status & VIRTUAL)
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repstr[0] = 'v';
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else if (lv_is_thin_pool(lv))
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repstr[0] = 't';
|
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else if (lv_is_thin_pool_data(lv))
|
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repstr[0] = 'T';
|
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else if (lv_is_thin_pool_metadata(lv) || (lv->status & RAID_META))
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repstr[0] = 'e';
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else if (lv->status & MIRROR_IMAGE)
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repstr[0] = (_lv_mimage_in_sync(lv)) ? 'i' : 'I';
|
|
else if (lv->status & RAID_IMAGE)
|
|
repstr[0] = (_lv_raid_image_in_sync(lv)) ? 'i' : 'I';
|
|
else if (lv->status & MIRROR_LOG)
|
|
repstr[0] = 'l';
|
|
else if (lv_is_cow(lv)) {
|
|
repstr[0] = (lv_is_merging_cow(lv)) ? 'S' : 's';
|
|
} else
|
|
repstr[0] = '-';
|
|
|
|
if (lv->status & PVMOVE)
|
|
repstr[1] = '-';
|
|
else if (lv->status & LVM_WRITE)
|
|
repstr[1] = 'w';
|
|
else if (lv->status & LVM_READ)
|
|
repstr[1] = 'r';
|
|
else
|
|
repstr[1] = '-';
|
|
|
|
repstr[2] = alloc_policy_char(lv->alloc);
|
|
|
|
if (lv->status & LOCKED)
|
|
repstr[2] = toupper(repstr[2]);
|
|
|
|
repstr[3] = (lv->status & FIXED_MINOR) ? 'm' : '-';
|
|
|
|
if (lv_info(lv->vg->cmd, lv, 0, &info, 1, 0) && info.exists) {
|
|
if (info.suspended)
|
|
repstr[4] = 's'; /* Suspended */
|
|
else if (info.live_table)
|
|
repstr[4] = 'a'; /* Active */
|
|
else if (info.inactive_table)
|
|
repstr[4] = 'i'; /* Inactive with table */
|
|
else
|
|
repstr[4] = 'd'; /* Inactive without table */
|
|
|
|
/* Snapshot dropped? */
|
|
if (info.live_table && lv_is_cow(lv)) {
|
|
if (!lv_snapshot_percent(lv, &snap_percent) ||
|
|
snap_percent == PERCENT_INVALID) {
|
|
if (info.suspended)
|
|
repstr[4] = 'S'; /* Susp Inv snapshot */
|
|
else
|
|
repstr[4] = 'I'; /* Invalid snapshot */
|
|
}
|
|
else if (snap_percent == PERCENT_MERGE_FAILED) {
|
|
if (info.suspended)
|
|
repstr[4] = 'M'; /* Susp snapshot merge failed */
|
|
else
|
|
repstr[4] = 'm'; /* snapshot merge failed */
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 'R' indicates read-only activation of a device that
|
|
* does not have metadata flagging it as read-only.
|
|
*/
|
|
if (repstr[1] != 'r' && info.read_only)
|
|
repstr[1] = 'R';
|
|
|
|
repstr[5] = (info.open_count) ? 'o' : '-';
|
|
} else {
|
|
repstr[4] = '-';
|
|
repstr[5] = '-';
|
|
}
|
|
|
|
if (lv_is_thin_type(lv))
|
|
repstr[6] = 't';
|
|
else if (lv_is_raid_type(lv))
|
|
repstr[6] = 'r';
|
|
else if (lv_is_mirror_type(lv))
|
|
repstr[6] = 'm';
|
|
else if (lv_is_cow(lv) || lv_is_origin(lv))
|
|
repstr[6] = 's';
|
|
else if (lv_has_unknown_segments(lv))
|
|
repstr[6] = 'u';
|
|
else if (lv_is_virtual(lv))
|
|
repstr[6] = 'v';
|
|
else
|
|
repstr[6] = '-';
|
|
|
|
if (((lv_is_thin_volume(lv) && (seg = first_seg(lv)) && seg->pool_lv && (seg = first_seg(seg->pool_lv))) ||
|
|
(lv_is_thin_pool(lv) && (seg = first_seg(lv)))) &&
|
|
seg->zero_new_blocks)
|
|
repstr[7] = 'z';
|
|
else
|
|
repstr[7] = '-';
|
|
|
|
if (lv->status & PARTIAL_LV ||
|
|
(lv_is_raid_type(lv) && !_lv_raid_healthy(lv)))
|
|
repstr[8] = 'p';
|
|
else
|
|
repstr[8] = '-';
|
|
|
|
out:
|
|
return repstr;
|
|
}
|
|
|
|
int lv_set_creation(struct logical_volume *lv,
|
|
const char *hostname, uint64_t timestamp)
|
|
{
|
|
const char *hn;
|
|
|
|
if (!hostname) {
|
|
if (!_utsinit) {
|
|
if (uname(&_utsname)) {
|
|
log_error("uname failed: %s", strerror(errno));
|
|
memset(&_utsname, 0, sizeof(_utsname));
|
|
}
|
|
|
|
_utsinit = 1;
|
|
}
|
|
|
|
hostname = _utsname.nodename;
|
|
}
|
|
|
|
if (!(hn = dm_hash_lookup(lv->vg->hostnames, hostname))) {
|
|
if (!(hn = dm_pool_strdup(lv->vg->vgmem, hostname))) {
|
|
log_error("Failed to duplicate hostname");
|
|
return 0;
|
|
}
|
|
|
|
if (!dm_hash_insert(lv->vg->hostnames, hostname, (void*)hn))
|
|
return_0;
|
|
}
|
|
|
|
lv->hostname = hn;
|
|
lv->timestamp = timestamp ? : (uint64_t) time(NULL);
|
|
|
|
return 1;
|
|
}
|
|
|
|
char *lv_time_dup(struct dm_pool *mem, const struct logical_volume *lv)
|
|
{
|
|
char buffer[50];
|
|
struct tm *local_tm;
|
|
time_t ts = (time_t)lv->timestamp;
|
|
|
|
if (!ts ||
|
|
!(local_tm = localtime(&ts)) ||
|
|
/* FIXME: make this lvm.conf configurable */
|
|
!strftime(buffer, sizeof(buffer),
|
|
"%Y-%m-%d %T %z", local_tm))
|
|
buffer[0] = 0;
|
|
|
|
return dm_pool_strdup(mem, buffer);
|
|
}
|
|
|
|
char *lv_host_dup(struct dm_pool *mem, const struct logical_volume *lv)
|
|
{
|
|
return dm_pool_strdup(mem, lv->hostname ? : "");
|
|
}
|