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lvm2/lib/display/display.c
Alasdair Kergon 4a624ca055 o ACTIVE is no longer a status flag - lv_active() used to check if an LV 
is active in the device-mapper.
o Many operations can be carried out regardless of whether the VG is
  active or not.
o vgscan does not activate anything - use vgchange.
o Change lvrename to support renaming of active LVs.
o Remove '//' appearing in some pathnames.
o Dummy lv_check_segments() for compilation.
2002-01-10 23:21:07 +00:00

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/*
* Copyright (C) 2001 Sistina Software
*
* This LVM library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This LVM library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this LVM library; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA
*
*/
#include <sys/types.h>
#include <string.h>
#include "metadata.h"
#include "dbg_malloc.h"
#include "log.h"
#include "display.h"
#include "activate.h"
#define SIZE_BUF 128
char *display_size(unsigned long long size, size_len_t sl)
{
int s;
ulong byte = 1024 * 1024 * 1024;
char *size_buf = NULL;
char *size_str[][2] = {
{"Terabyte", "TB"},
{"Gigabyte", "GB"},
{"Megabyte", "MB"},
{"Kilobyte", "KB"},
{"", ""}
};
if (!(size_buf = dbg_malloc(SIZE_BUF))) {
log_error("no memory for size display buffer");
return NULL;
}
if (size == 0LL)
sprintf(size_buf, "0");
else {
s = 0;
while (size_str[s] && size < byte)
s++, byte /= 1024;
snprintf(size_buf, SIZE_BUF - 1,
"%.2f %s", (float) size / byte, size_str[s][sl]);
}
/* Caller to deallocate */
return size_buf;
}
/*
* FIXME: this function is badly named, it doesn't display the data it
* creates a new uuid string with -'s in it. It would be better if
* the destination was passed in as well. EJT
*/
char *display_uuid(char *uuidstr)
{
int i, j;
char *uuid;
if ((!uuidstr) || !(uuid = dbg_malloc(NAME_LEN))) {
log_error("no memory for uuid display buffer");
return NULL;
}
memset(uuid, 0, NAME_LEN);
i = 6;
memcpy(uuid, uuidstr, i);
uuidstr += i;
for (j = 0; j < 6; j++) {
uuid[i++] = '-';
memcpy(&uuid[i], uuidstr, 4);
uuidstr += 4;
i += 4;
}
memcpy(&uuid[i], uuidstr, 2);
/* Caller must free */
return uuid;
}
void pvdisplay_colons(struct physical_volume *pv)
{
char *uuid;
if (!pv)
return;
uuid = display_uuid(pv->id.uuid);
log_print("%s:%s:%" PRIu64 ":-1:%u:%u:-1:%" PRIu64 ":%u:%u:%u:%s",
dev_name(pv->dev), pv->vg_name, pv->size,
/* FIXME pv->pv_number, Derive or remove? */
pv->status, /* FIXME Support old or new format here? */
pv->status & ALLOCATABLE_PV, /* FIXME remove? */
/* FIXME pv->lv_cur, Remove? */
pv->pe_size / 2,
pv->pe_count,
pv->pe_count - pv->pe_allocated,
pv->pe_allocated, *uuid ? uuid : "none");
dbg_free(uuid);
return;
}
void pvdisplay_full(struct physical_volume *pv)
{
char *uuid;
char *size, *size1; /*, *size2; */
uint64_t pe_free;
if (!pv)
return;
uuid = display_uuid(pv->id.uuid);
log_print("--- %sPhysical volume ---", pv->pe_size ? "" : "NEW ");
log_print("PV Name %s", dev_name(pv->dev));
log_print("VG Name %s", pv->vg_name);
size = display_size(pv->size / 2, SIZE_SHORT);
if (pv->pe_size && pv->pe_count) {
size1 = display_size((pv->size - pv->pe_count * pv->pe_size)
/ 2, SIZE_SHORT);
/******** FIXME display LVM on-disk data size
size2 = display_size(pv->size / 2, SIZE_SHORT);
********/
log_print("PV Size %s" " / not usable %s", /* [LVM: %s]", */
size, size1); /* , size2); */
dbg_free(size1);
/* dbg_free(size2); */
} else
log_print("PV Size %s", size);
dbg_free(size);
/*********FIXME Anything use this?
log_print("PV# %u", pv->pv_number);
**********/
pe_free = pv->pe_count - pv->pe_allocated;
if (pv->pe_count && (pv->status & ALLOCATABLE_PV))
log_print("Allocatable yes %s",
(!pe_free && pv->pe_count) ? "(but full)" : "");
else
log_print("Allocatable NO");
/*********FIXME
log_print("Cur LV %u", pv->lv_cur);
*********/
log_print("PE Size (KByte) %" PRIu64, pv->pe_size / 2);
log_print("Total PE %u", pv->pe_count);
log_print("Free PE %" PRIu64, pe_free);
log_print("Allocated PE %u", pv->pe_allocated);
#ifdef LVM_FUTURE
printf("Stale PE %u", pv->pe_stale);
#endif
log_print("PV UUID %s", *uuid ? uuid : "none");
log_print(" ");
dbg_free(uuid);
return;
}
int pvdisplay_short(struct volume_group *vg, struct physical_volume *pv)
{
if (!pv)
return 0;
log_print("PV Name %s ", dev_name(pv->dev));
/* FIXME pv->pv_number); */
log_print("PV Status %sallocatable",
(pv->status & ALLOCATABLE_PV) ? "" : "NOT ");
log_print("Total PE / Free PE %u / %u",
pv->pe_count, pv->pe_count - pv->pe_allocated);
log_print(" ");
return 0;
}
void lvdisplay_colons(struct logical_volume *lv)
{
int inkernel;
struct dm_info info;
inkernel = lv_info(lv, &info) && info.exists;
log_print("%s%s/%s:%s:%d:%d:-1:%d:%" PRIu64 ":%d:-1:%d:%d:%d:%d",
lv->vg->cmd->dev_dir,
lv->vg->name,
lv->name,
lv->vg->name,
(lv->status & (LVM_READ | LVM_WRITE)) >> 8,
inkernel ? 1 : 0,
/* FIXME lv->lv_number, */
inkernel ? info.open_count : 0, lv->size, lv->le_count,
/* FIXME Add num allocated to struct! lv->lv_allocated_le, */
((lv->status & ALLOC_STRICT) +
(lv->status & ALLOC_CONTIGUOUS) * 2), lv->read_ahead,
inkernel ? info.major : -1,
inkernel ? info.minor : -1
);
return;
}
int lvdisplay_full(struct logical_volume *lv)
{
char *size;
uint32_t alloc;
struct dm_info info;
int inkernel;
inkernel = lv_info(lv, &info) && info.exists;
log_print("--- Logical volume ---");
log_print("LV Name %s%s/%s", lv->vg->cmd->dev_dir,
lv->vg->name, lv->name);
log_print("VG Name %s", lv->vg->name);
log_print("LV Write Access %s",
(lv->status & LVM_WRITE) ? "read/write" : "read only");
/******* FIXME Snapshot
if (lv->status & (LVM_SNAPSHOT_ORG | LVM_SNAPSHOT)) {
if (lvm_tab_vg_read_with_pv_and_lv(vg_name, &vg) < 0) {
ret = -LVM_ELV_SHOW_VG_READ_WITH_PV_AND_LV;
goto lv_show_end;
}
printf("LV snapshot status ");
if (vg_check_active(vg_name) == TRUE) {
vg_t *vg_core;
if ((ret = vg_status_with_pv_and_lv(vg_name, &vg_core)) == 0) {
lv_t *lv_ptr =
vg_core->
lv[lv_get_index_by_name(vg_core, lv->lv_name)];
if (lv_ptr->lv_access & LV_SNAPSHOT) {
if (lv_ptr->lv_status & LV_ACTIVE)
printf("active ");
else
printf("INACTIVE ");
}
if (lv_ptr->lv_access & LV_SNAPSHOT_ORG) {
printf("source of\n");
while (lv_ptr->lv_snapshot_next != NULL) {
lv_ptr = lv_ptr->lv_snapshot_next;
printf(" %s [%s]\n",
lv_ptr->lv_name,
(lv_ptr->
lv_status & LV_ACTIVE) ? "active" :
"INACTIVE");
}
vg_free(vg_core, TRUE);
} else {
printf("destination for %s\n",
lv_ptr->lv_snapshot_org->lv_name);
}
}
} else {
printf("INACTIVE ");
if (lv->lv_access & LV_SNAPSHOT_ORG)
printf("original\n");
else
printf("snapshot\n");
}
}
***********/
if (inkernel && info.suspended)
log_print("LV Status suspended");
else
log_print("LV Status %savailable",
inkernel ? "" : "NOT ");
/********* FIXME lv_number
log_print("LV # %u", lv->lv_number + 1);
************/
if (inkernel)
log_print("# open %u", info.open_count);
/********
#ifdef LVM_FUTURE
printf("Mirror copies %u\n", lv->lv_mirror_copies);
printf("Consistency recovery ");
if (lv->lv_recovery | LV_BADBLOCK_ON)
printf("bad blocks\n");
else
printf("none\n");
printf("Schedule %u\n", lv->lv_schedule);
#endif
********/
size = display_size(lv->size / 2, SIZE_SHORT);
log_print("LV Size %s", size);
dbg_free(size);
log_print("Current LE %u", lv->le_count);
/********** FIXME allocation
log_print("Allocated LE %u", lv->allocated_le);
**********/
/********** FIXME Snapshot
if (lv->lv_access & LV_SNAPSHOT) {
printf("snapshot chunk size %s\n",
(dummy = lvm_show_size(lv->lv_chunk_size / 2, SHORT)));
dbg_free(dummy);
dummy = NULL;
if (lv->lv_remap_end > 0) {
lv_remap_ptr = lv->lv_remap_ptr;
if (lv_remap_ptr > lv->lv_remap_end)
lv_remap_ptr = lv->lv_remap_end;
dummy = lvm_show_size(lv_remap_ptr *
lv->lv_chunk_size / 2, SHORT);
dummy1 = lvm_show_size(lv->lv_remap_end *
lv->lv_chunk_size / 2, SHORT);
printf("Allocated to snapshot %.2f%% [%s/%s]\n",
(float) lv_remap_ptr * 100 / lv->lv_remap_end,
dummy, dummy1);
dbg_free(dummy);
dbg_free(dummy1);
dummy =
lvm_show_size((vg->
lv[lv_get_index_by_number
(vg,
lv->lv_number)]->lv_size -
lv->lv_remap_end * lv->lv_chunk_size) / 2,
SHORT);
printf("Allocated to COW-table %s\n", dummy);
dbg_free(dummy);
}
}
******************/
log_print("Segments %u", list_size(&lv->segments));
/********* FIXME Stripes & stripesize for each segment
log_print("Stripe size (KByte) %u", lv->stripesize / 2);
***********/
/**************
#ifdef LVM_FUTURE
printf("Bad block ");
if (lv->lv_badblock == LV_BADBLOCK_ON)
printf("on\n");
else
printf("off\n");
#endif
***************/
/* FIXME next free == ALLOC_SIMPLE */
alloc = lv->status & (ALLOC_STRICT | ALLOC_CONTIGUOUS);
log_print("Allocation %s%s%s%s",
!(alloc & (ALLOC_STRICT | ALLOC_CONTIGUOUS)) ? "next free" :
"", (alloc == ALLOC_STRICT) ? "strict" : "",
(alloc == ALLOC_CONTIGUOUS) ? "contiguous" : "",
(alloc ==
(ALLOC_STRICT | ALLOC_CONTIGUOUS)) ? "strict/contiguous" :
"");
log_print("Read ahead sectors %u", lv->read_ahead);
/****************
#ifdef LVM_FUTURE
printf("IO Timeout (seconds) ");
if (lv->lv_io_timeout == 0)
printf("default\n\n");
else
printf("%lu\n\n", lv->lv_io_timeout);
#endif
*************/
if (inkernel)
log_print("Block device %d:%d", info.major,
info.minor);
log_print(" ");
return 0;
}
void lvdisplay_extents(struct logical_volume *lv)
{
int le;
struct list *pvh;
struct physical_volume *pv;
log_print("--- Distribution of logical volume on physical "
"volumes ---");
log_print("PV Name PE on PV ");
/********* FIXME Segments & Stripes
list_iterate(pvh, &lv->vg->pvs) {
int count = 0;
pv = &list_item(pvh, struct pv_list)->pv;
for (le = 0; le < lv->le_count; le++)
if (lv->map[le].pv->dev == pv->dev)
count++;
if (count)
log_print("%-25s %d", dev_name(pv->dev), count);
}
**********/
/********* FIXME "reads writes"
printf("\n --- logical volume i/o statistic ---\n"
" %d reads %d writes\n", sum_reads, sum_writes);
******* */
log_print(" ");
log_print("--- Logical extents ---");
log_print("LE PV PE");
/******** FIXME Segments & Stripes
for (le = 0; le < lv->le_count; le++) {
log_print("%05d %-25s %05u ", le,
dev_name(lv->map[le].pv->dev), lv->map[le].pe);
}
******/
log_print(" ");
return;
}
void vgdisplay_extents(struct volume_group *vg)
{
return;
}
void vgdisplay_full(struct volume_group *vg)
{
uint32_t access;
char *s1;
log_print("--- Volume group ---");
log_print("VG Name %s", vg->name);
access = vg->status & (LVM_READ | LVM_WRITE);
log_print("VG Access %s%s%s%s",
access == (LVM_READ | LVM_WRITE) ? "read/write" : "",
access == LVM_READ ? "read" : "",
access == LVM_WRITE ? "write" : "",
access == 0 ? "error" : "");
log_print("VG Status %s/%sresizable",
vg->status & EXPORTED_VG ? "exported" : "",
vg->status & RESIZEABLE_VG ? "" : "NOT ");
/******* FIXME vg number
log_print ("VG # %u\n", vg->vg_number);
********/
if (vg->status & CLUSTERED) {
log_print("Clustered yes");
log_print("Shared %s",
vg->status & SHARED ? "yes" : "no");
}
log_print("MAX LV %u", vg->max_lv);
log_print("Cur LV %u", vg->lv_count);
/****** FIXME Open LVs
log_print ( "Open LV %u", vg->lv_open);
*******/
/****** FIXME Max LV Size
log_print ( "MAX LV Size %s",
( s1 = display_size ( LVM_LV_SIZE_MAX(vg) / 2, SIZE_SHORT)));
free ( s1);
*********/
log_print("Max PV %u", vg->max_pv);
log_print("Cur PV %u", vg->pv_count);
/******* FIXME act PVs
log_print ( "Act PV %u", vg->pv_act);
*********/
s1 = display_size(vg->extent_count * vg->extent_size / 2, SIZE_SHORT);
log_print("VG Size %s", s1);
dbg_free(s1);
s1 = display_size(vg->extent_size / 2, SIZE_SHORT);
log_print("PE Size %s", s1);
dbg_free(s1);
log_print("Total PE %u", vg->extent_count);
s1 =
display_size((vg->extent_count - vg->free_count) *
vg->extent_size / 2, SIZE_SHORT);
log_print("Alloc PE / Size %u / %s",
vg->extent_count - vg->free_count, s1);
dbg_free(s1);
s1 = display_size(vg->free_count * vg->extent_size / 2, SIZE_SHORT);
log_print("Free PE / Size %u / %s", vg->free_count, s1);
dbg_free(s1);
if (strlen(vg->id.uuid))
s1 = display_uuid(vg->id.uuid);
else
s1 = "none";
log_print("VG UUID %s", s1);
if (strlen(vg->id.uuid))
dbg_free(s1);
log_print(" ");
return;
}
void vgdisplay_colons(struct volume_group *vg)
{
return;
}
void vgdisplay_short(struct volume_group *vg)
{
char *s1, *s2, *s3;
s1 = display_size(vg->extent_count * vg->extent_size / 2, SIZE_SHORT);
s2 =
display_size((vg->extent_count - vg->free_count) * vg->extent_size /
2, SIZE_SHORT);
s3 = display_size(vg->free_count * vg->extent_size / 2, SIZE_SHORT);
log_print("%s %-9s [%-9s used / %s free]", vg->name,
/********* FIXME if "open" print "/used" else print "/idle"??? ******/
s1, s2, s3);
dbg_free(s1);
dbg_free(s2);
dbg_free(s3);
return;
}
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