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Code Releases Activity

o Use new LCK_HOLD flag to indicate whether lock should be held on return

Browse Source 
from lock_vol() - otherwise it now attempts to acquire the lock and then
  immediately releases it.
o Extend the id field in struct logical_volume to hold VG uuid + LV uuid
  for format1. This unique lvid can be used directly when calling lock_vol().
o Add the VG uuid to vgcache to make VG uuid lookups possible.  (Another
  step towards using them instead of VG names internally.)
This commit is contained in:
Alasdair Kergon 2002-03-05 20:03:09 +00:00
parent 2731508b34
commit 15c325f06a
24 changed files with 231 additions and 164 deletions
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38
lib/activate/activate.c
View File

@ -14,6 +14,9 @@
#include "toolcontext.h"
#include "dev_manager.h"
/* FIXME Temporary */
#include "vgcache.h"
#include <limits.h>
#include <linux/kdev_t.h>
#include <fcntl.h>
@ -270,23 +273,22 @@ int lvs_in_vg_opened(struct volume_group *vg)
return count;
}
/* FIXME Currently lvid is "vgname/lv_uuid". Needs to be vg_uuid/lv_uuid. */
static struct logical_volume *_lv_from_lvid(struct cmd_context *cmd,
const char *lvid)
const char *lvid_s)
{
struct lv_list *lvl;
struct volume_group *vg;
union lvid *lvid;
char *vgname;
char *slash;
if (!(slash = strchr(lvid, '/'))) {
log_error("Invalid VG/LV identifier: %s", lvid);
lvid = (union lvid *) lvid_s;
/* FIXME Change vgread to accept vgid directly - can't rely on cache */
if (!(vgname = vgname_from_vgid(cmd, &lvid->id[0]))) {
log_error("Volume group for uuid not found: %s", lvid_s);
return NULL;
}
vgname = pool_strdup(cmd->mem, lvid);
*strchr(vgname, '/') = '\0';
log_verbose("Finding volume group \"%s\"", vgname);
if (!(vg = cmd->fid->ops->vg_read(cmd->fid, vgname))) {
log_error("Volume group \"%s\" doesn't exist", vgname);
@ -298,8 +300,8 @@ static struct logical_volume *_lv_from_lvid(struct cmd_context *cmd,
return NULL;
}
if (!(lvl = find_lv_in_vg_by_uuid(vg, slash + 1))) {
log_verbose("Can't find logical volume id %s", lvid);
if (!(lvl = find_lv_in_vg_by_lvid(vg, lvid))) {
log_very_verbose("Can't find logical volume id %s", lvid_s);
return NULL;
}
@ -308,11 +310,11 @@ static struct logical_volume *_lv_from_lvid(struct cmd_context *cmd,
/* These functions should become the new interface and the _if_active
* bits then disappear */
int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid)
int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s)
{
struct logical_volume *lv;
if (!(lv = _lv_from_lvid(cmd, lvid)))
if (!(lv = _lv_from_lvid(cmd, lvid_s)))
return 0;
if (lv_active(lv) > 0)
@ -322,11 +324,11 @@ int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid)
}
int lv_resume_if_active(struct cmd_context *cmd, const char *lvid)
int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s)
{
struct logical_volume *lv;
if (!(lv = _lv_from_lvid(cmd, lvid)))
if (!(lv = _lv_from_lvid(cmd, lvid_s)))
return 0;
if ((lv_active(lv) > 0) && lv_suspended(lv))
@ -335,11 +337,11 @@ int lv_resume_if_active(struct cmd_context *cmd, const char *lvid)
return 1;
}
int lv_deactivate_if_active(struct cmd_context *cmd, const char *lvid)
int lv_deactivate_if_active(struct cmd_context *cmd, const char *lvid_s)
{
struct logical_volume *lv;
if (!(lv = _lv_from_lvid(cmd, lvid)))
if (!(lv = _lv_from_lvid(cmd, lvid_s)))
return 0;
if (lv_active(lv) > 0)
@ -348,12 +350,12 @@ int lv_deactivate_if_active(struct cmd_context *cmd, const char *lvid)
return 1;
}
int lv_activate_if_inactive(struct cmd_context *cmd, const char *lvid)
int lv_activate_if_inactive(struct cmd_context *cmd, const char *lvid_s)
{
struct logical_volume *lv;
int active;
if (!(lv = _lv_from_lvid(cmd, lvid)))
if (!(lv = _lv_from_lvid(cmd, lvid_s)))
return 0;
active = lv_active(lv);

8
lib/activate/activate.h
View File

@ -40,10 +40,10 @@ int lv_rename(const char *old_name, struct logical_volume *lv);
* These should eventually replace some of the above and maybe
* use config file to determine whether or not to activate
*/
int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid);
int lv_resume_if_active(struct cmd_context *cmd, const char *lvid);
int lv_activate_if_inactive(struct cmd_context *cmd, const char *lvid);
int lv_deactivate_if_active(struct cmd_context *cmd, const char *lvid);
int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s);
int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s);
int lv_activate_if_inactive(struct cmd_context *cmd, const char *lvid_s);
int lv_deactivate_if_active(struct cmd_context *cmd, const char *lvid_s);
/*

4
lib/activate/dev_manager.c
View File

@ -133,7 +133,7 @@ static int _load(struct dev_manager *dm, struct dev_layer *dl, int task)
int r;
struct dm_task *dmt;
log_very_verbose("Loading %s", dl->name);
log_verbose("Loading %s", dl->name);
if (!(dmt = _setup_task(dl->name, task))) {
stack;
return 0;
@ -162,7 +162,7 @@ static int _remove(struct dev_layer *dl)
int r;
struct dm_task *dmt;
log_very_verbose("Removing %s", dl->name);
log_verbose("Removing %s", dl->name);
if (!(dmt = _setup_task(dl->name, DM_DEVICE_REMOVE))) {
stack;
return 0;

2
lib/display/display.c
View File

@ -205,7 +205,7 @@ int lvdisplay_full(struct cmd_context *cmd, struct logical_volume *lv)
char uuid[64];
struct snapshot *snap;
if (!id_write_format(&lv->id, uuid, sizeof(uuid))) {
if (!id_write_format(&lv->lvid.id[1], uuid, sizeof(uuid))) {
stack;
return 0;
}

15
lib/format1/disk-rep.c
View File

@ -305,7 +305,7 @@ static struct disk_list *__read_disk(struct device *dev, struct pool *mem,
log_very_verbose("%s is not a member of any VG", name);
/* Update VG cache */
vgcache_add(data->pvd.vg_name, dev);
vgcache_add(data->pvd.vg_name, NULL, dev);
return (vg_name) ? NULL : data;
}
@ -319,7 +319,7 @@ static struct disk_list *__read_disk(struct device *dev, struct pool *mem,
_munge_exported_vg(data);
/* Update VG cache with what we found */
vgcache_add(data->pvd.vg_name, dev);
vgcache_add(data->pvd.vg_name, data->vgd.vg_uuid, dev);
if (vg_name && strcmp(vg_name, data->pvd.vg_name)) {
log_very_verbose("%s is not a member of the VG %s",
@ -582,13 +582,18 @@ static int __write_all_pvd(struct disk_list *data)
return 0;
}
if (!test_mode())
vgcache_add(data->pvd.vg_name, data->dev);
vgcache_add(data->pvd.vg_name, data->vgd.vg_uuid, data->dev);
/*
* Stop here for orphan pv's.
*/
if (data->pvd.vg_name[0] == '\0')
if (data->pvd.vg_name[0] == '\0') {
if (!test_mode())
vgcache_add(data->pvd.vg_name, NULL, data->dev);
return 1;
}
if (!test_mode())
vgcache_add(data->pvd.vg_name, data->vgd.vg_uuid, data->dev);
if (!_write_vgd(data)) {
log_error("Failed to write VG data to %s", pv_name);

4
lib/format1/format1.c
View File

@ -429,7 +429,7 @@ static int _find_free_lvnum(struct logical_volume *lv)
list_iterate(lvh, &lv->vg->lvs) {
lvl = list_item(lvh, struct lv_list);
lvnum_used[lvnum_from_id(&lvl->lv->id)] = 1;
lvnum_used[lvnum_from_lvid(&lvl->lv->lvid)] = 1;
}
while (lvnum_used[i])
@ -442,7 +442,7 @@ static int _lv_setup(struct format_instance *fi, struct logical_volume *lv)
{
uint64_t max_size = UINT_MAX;
id_from_lvnum(&lv->id, _find_free_lvnum(lv));
lvid_from_lvnum(&lv->lvid, &lv->vg->id, _find_free_lvnum(lv));
if (lv->le_count > MAX_LE_TOTAL) {
log_error("logical volumes cannot contain more than "

8
lib/format1/import-export.c
View File

@ -272,9 +272,7 @@ int export_vg(struct vg_disk *vgd, struct volume_group *vg)
int import_lv(struct pool *mem, struct logical_volume *lv, struct lv_disk *lvd)
{
memset(&lv->id, 0, sizeof(lv->id));
id_from_lvnum(&lv->id, lvd->lv_number);
lvid_from_lvnum(&lv->lvid, &lv->vg->id, lvd->lv_number);
if (!(lv->name = _create_lv_name(mem, lvd->lv_name))) {
stack;
@ -431,6 +429,7 @@ static struct logical_volume *_add_lv(struct pool *mem,
return NULL;
}
lv = ll->lv;
lv->vg = vg;
if (!import_lv(mem, lv, lvd)) {
stack;
@ -438,7 +437,6 @@ static struct logical_volume *_add_lv(struct pool *mem,
}
list_add(&vg->lvs, &ll->list);
lv->vg = vg;
vg->lv_count++;
return lv;
@ -504,7 +502,7 @@ int export_lvs(struct disk_list *dl, struct volume_group *vg,
export_lv(&lvdl->lvd, vg, ll->lv, dev_dir);
lv_num = lvnum_from_id(&ll->lv->id);
lv_num = lvnum_from_lvid(&ll->lv->lvid);
lvdl->lvd.lv_number = lv_num;

3
lib/format_text/export.c
View File

@ -354,7 +354,8 @@ static int _print_lvs(struct formatter *f, struct volume_group *vg)
_out(f, "%s {", lv->name);
_inc_indent(f);
if (!id_write_format(&lv->id, buffer, sizeof(buffer))) {
/* FIXME: Write full lvid */
if (!id_write_format(&lv->lvid.id[1], buffer, sizeof(buffer))) {
stack;
return 0;
}

6
lib/format_text/import.c
View File

@ -364,13 +364,15 @@ static int _read_lv(struct pool *mem,
lv->vg = vg;
if (!_read_id(&lv->id, lvn, "id")) {
/* FIXME: read full lvid */
if (!_read_id(&lv->lvid.id[1], lvn, "id")) {
log_err("Couldn't read uuid for logical volume %s.",
lv->name);
return 0;
}
memcpy(&lv->lvid.id[0], &lv->vg->id, sizeof(lv->lvid.id[0]));
if (!(cn = find_config_node(lvn, "status", '/'))) {
log_err("Couldn't find status flags for logical volume.");
return 0;

29
lib/locking/locking.c
View File

@ -118,6 +118,21 @@ void fin_locking(void)
* LV locking is by VG_name/LV_uuid
* FIXME This should take a VG_uuid instead of VG_name
*/
int _lock_vol(struct cmd_context *cmd, const char *resource, int flags)
{
_ignore_signals();
if (!(_locking.lock_resource(cmd, resource, flags))) {
_enable_signals();
return 0;
}
_update_lock_count(flags);
_enable_signals();
return 1;
}
int lock_vol(struct cmd_context *cmd, const char *vol, int flags)
{
char resource[258];
@ -133,15 +148,15 @@ int lock_vol(struct cmd_context *cmd, const char *vol, int flags)
return 0;
}
_ignore_signals();
if (!(_locking.lock_resource(cmd, resource, flags))) {
_enable_signals();
if (!_lock_vol(cmd, resource, flags))
return 0;
}
_update_lock_count(flags);
_enable_signals();
/* Perform immediate unlock unless LCK_HOLD set */
if (!(flags & LCK_HOLD) && ((flags & LCK_TYPE_MASK) != LCK_NONE)) {
if (!_lock_vol(cmd, resource,
(flags & ~LCK_TYPE_MASK) | LCK_NONE))
return 0;
}
return 1;
}

7
lib/locking/locking.h
View File

@ -49,13 +49,14 @@ int lock_vol(struct cmd_context *cmd, const char *vol, int flags);
/*
* Lock bits
*/
#define LCK_NONBLOCK 0x00010000
#define LCK_NONBLOCK 0x00010000 /* Don't block waiting for lock? */
#define LCK_HOLD 0x00020000 /* Hold lock when lock_vol returns? */
/*
* Common combinations
*/
#define LCK_VG_READ (LCK_VG | LCK_READ)
#define LCK_VG_WRITE (LCK_VG | LCK_WRITE)
#define LCK_VG_READ (LCK_VG | LCK_READ | LCK_HOLD)
#define LCK_VG_WRITE (LCK_VG | LCK_WRITE | LCK_HOLD)
#define LCK_VG_UNLOCK (LCK_VG | LCK_NONE)
#define LCK_LV_DEACTIVATE (LCK_LV | LCK_EXCL)

3
lib/metadata/lv_manip.c
View File

@ -416,7 +416,7 @@ struct logical_volume *lv_create(struct format_instance *fi,
lv = ll->lv;
strcpy(lv->id.uuid, "");
lv->vg = vg;
if (!(lv->name = pool_strdup(cmd->mem, name))) {
stack;
@ -428,7 +428,6 @@ struct logical_volume *lv_create(struct format_instance *fi,
lv->minor = -1;
lv->size = (uint64_t) extents * vg->extent_size;
lv->le_count = extents;
lv->vg = vg;
list_init(&lv->segments);
if (!_allocate(vg, lv, acceptable_pvs, 0u, stripes, stripe_size)) {

15
lib/metadata/metadata.c
View File

@ -290,14 +290,14 @@ struct lv_list *find_lv_in_vg(struct volume_group *vg, const char *lv_name)
return NULL;
}
struct lv_list *find_lv_in_vg_by_uuid(struct volume_group *vg, const char *uuid)
struct lv_list *find_lv_in_vg_by_lvid(struct volume_group *vg, union lvid *lvid)
{
struct list *lvh;
struct lv_list *lvl;
list_iterate(lvh, &vg->lvs) {
lvl = list_item(lvh, struct lv_list);
if (!strncmp(lvl->lv->id.uuid, uuid, ID_LEN))
if (!strncmp(lvl->lv->lvid.s, lvid->s, sizeof(*lvid)))
return lvl;
}
@ -324,14 +324,3 @@ struct physical_volume *find_pv(struct volume_group *vg, struct device *dev)
return NULL;
}
char *lvid(struct logical_volume *lv, char *buf, int size)
{
/* FIXME Create uuid.h functions for all uuid manipulation */
if (lvm_snprintf(buf, size, "%s/%." ID_LEN_S "s", lv->vg->name,
lv->id.uuid) < 0) {
log_error("Buffer too small to hold LV id: %s", buf);
return NULL;
}
return buf;
}

9
lib/metadata/metadata.h
View File

@ -115,7 +115,7 @@ struct stripe_segment {
};
struct logical_volume {
struct id id;
union lvid lvid;
char *name;
struct volume_group *vg;
@ -303,11 +303,8 @@ struct pv_list *find_pv_in_vg(struct volume_group *vg, const char *pv_name);
/* Find an LV within a given VG */
struct lv_list *find_lv_in_vg(struct volume_group *vg, const char *lv_name);
struct lv_list *find_lv_in_vg_by_uuid(struct volume_group *vg,
const char *uuid);
/* Get unique LV identifier - currently "<VG uuid>/<LV uuid>" */
char *lvid(struct logical_volume *lv, char *buf, int size);
struct lv_list *find_lv_in_vg_by_lvid(struct volume_group *vg,
union lvid *lvid);
/* Return the VG that contains a given LV (based on path given in lv_name) */
/* or environment var */

12
lib/uuid/uuid.c
View File

@ -19,26 +19,30 @@ static unsigned char _c[] =
static int _built_inverse;
static unsigned char _inverse_c[256];
int id_from_lvnum(struct id *id, int lv_num)
int lvid_from_lvnum(union lvid *lvid, struct id *vgid, int lv_num)
{
int i;
memcpy(lvid->id, vgid, sizeof(*lvid->id));
for (i = ID_LEN; i; i--) {
id->uuid[i - 1] = _c[lv_num % (sizeof(_c) - 1)];
lvid->id[1].uuid[i - 1] = _c[lv_num % (sizeof(_c) - 1)];
lv_num /= sizeof(_c) - 1;
}
lvid->s[sizeof(lvid->s) - 1] = '\0';
return 1;
}
int lvnum_from_id(struct id *id)
int lvnum_from_lvid(union lvid *lvid)
{
int i, lv_num = 0;
unsigned char *c;
for (i = 0; i < ID_LEN; i++) {
lv_num *= sizeof(_c) - 1;
if ((c = strchr(_c, id->uuid[i])))
if ((c = strchr(_c, lvid->id[1].uuid[i])))
lv_num += (int) (c - _c);
}

13
lib/uuid/uuid.h
View File

@ -16,8 +16,17 @@ struct id {
uint8_t uuid[ID_LEN];
};
int id_from_lvnum(struct id *id, int lv_num);
int lvnum_from_id(struct id *id);
/*
* Unique logical volume identifier
* With format1 this is VG uuid + LV uuid + '\0'
*/
union lvid {
struct id id[2];
char s[2 * sizeof(struct id) + 1];
};
int lvid_from_lvnum(union lvid *lvid, struct id *vgid, int lv_num);
int lvnum_from_lvid(union lvid *lvid);
int id_create(struct id *id);
int id_valid(struct id *id);

94
lib/vgcache/vgcache.c
View File

@ -10,8 +10,11 @@
#include "hash.h"
#include "dbg_malloc.h"
#include "log.h"
#include "uuid.h"
#include "toolcontext.h"
static struct hash_table *_vghash;
static struct hash_table *_vgidhash;
static struct hash_table *_pvhash;
const char *all_devices = "\0";
@ -21,6 +24,9 @@ int vgcache_init()
if (!(_vghash = hash_create(128)))
return 0;
if (!(_vgidhash = hash_create(128)))
return 0;
if (!(_pvhash = hash_create(128)))
return 0;
@ -44,6 +50,23 @@ struct list *vgcache_find(const char *vg_name)
return &vgn->pvdevs;
}
struct list *vgcache_find_by_vgid(const char *vgid)
{
struct vgname_entry *vgn;
char vgid_s[ID_LEN + 1];
if (!_vgidhash || !vgid)
return NULL;
memcpy(vgid_s, vgid, ID_LEN);
vgid_s[ID_LEN] = '\0';
if (!(vgn = hash_lookup(_vgidhash, vgid_s)))
return NULL;
return &vgn->pvdevs;
}
void vgcache_del_orphan(struct device *dev)
{
struct pvdev_list *pvdev;
@ -55,7 +78,7 @@ void vgcache_del_orphan(struct device *dev)
}
}
int vgcache_add_entry(const char *vg_name, struct device *dev)
int vgcache_add_entry(const char *vg_name, const char *vgid, struct device *dev)
{
const char *pv_name;
struct vgname_entry *vgn;
@ -67,6 +90,7 @@ int vgcache_add_entry(const char *vg_name, struct device *dev)
log_error("struct vgname_entry allocation failed");
return 0;
}
memset(vgn, 0, sizeof(struct vgname_entry));
pvdevs = &vgn->pvdevs;
list_init(pvdevs);
@ -80,6 +104,17 @@ int vgcache_add_entry(const char *vg_name, struct device *dev)
log_error("vgcache_add: VG hash insertion failed");
return 0;
}
if (vgid) {
memcpy(vgn->vgid, vgid, ID_LEN);
vgn->vgid[ID_LEN] = '\0';
if (!hash_insert(_vgidhash, vgn->vgid, vgn)) {
log_error("vgcache_add: vgid hash insertion "
"failed");
return 0;
}
}
}
list_iterate(pvdh, pvdevs) {
@ -115,7 +150,7 @@ int vgcache_add_entry(const char *vg_name, struct device *dev)
}
/* vg_name of "\0" is an orphan PV; NULL means only add to all_devices */
int vgcache_add(const char *vg_name, struct device *dev)
int vgcache_add(const char *vg_name, const char *vgid, struct device *dev)
{
if (!_vghash && !vgcache_init())
return 0;
@ -125,11 +160,11 @@ int vgcache_add(const char *vg_name, struct device *dev)
vgcache_del_orphan(dev);
/* Add PV if vg_name supplied */
if (vg_name && *vg_name && !vgcache_add_entry(vg_name, dev))
if (vg_name && *vg_name && !vgcache_add_entry(vg_name, vgid, dev))
return 0;
/* Always add to all_devices */
return vgcache_add_entry(all_devices, dev);
return vgcache_add_entry(all_devices, NULL, dev);
}
void vgcache_destroy_entry(struct vgname_entry *vgn)
@ -147,6 +182,8 @@ void vgcache_destroy_entry(struct vgname_entry *vgn)
dbg_free(pvdev);
}
dbg_free(vgn->vgname);
if (_vgidhash && vgn->vgid[0])
hash_remove(_vgidhash, vgn->vgid);
}
dbg_free(vgn);
}
@ -165,9 +202,35 @@ void vgcache_del(const char *vg_name)
return;
hash_remove(_vghash, vg_name);
if (vgn->vgid[0])
hash_remove(_vgidhash, vgn->vgid);
vgcache_destroy_entry(vgn);
}
void vgcache_del_by_vgid(const char *vgid)
{
struct vgname_entry *vgn;
char vgid_s[ID_LEN + 1];
if (!_vgidhash || !vgid)
return;
memcpy(vgid_s, vgid, ID_LEN);
vgid_s[ID_LEN] = '\0';
if (!(vgn = hash_lookup(_vghash, vgid_s)))
return;
hash_remove(_vgidhash, vgn->vgid);
if (vgn->vgname[0])
hash_remove(_vghash, vgn->vgname);
vgcache_destroy_entry(vgn);
}
void vgcache_destroy()
{
if (_vghash) {
@ -176,8 +239,31 @@ void vgcache_destroy()
_vghash = NULL;
}
if (_vgidhash) {
hash_destroy(_vgidhash);
_vgidhash = NULL;
}
if (_pvhash) {
hash_destroy(_pvhash);
_pvhash = NULL;
}
}
char *vgname_from_vgid(struct cmd_context *cmd, struct id *vgid)
{
struct vgname_entry *vgn;
char vgid_s[ID_LEN + 1];
if (!_vgidhash || !vgid)
return NULL;
memcpy(vgid_s, vgid->uuid, ID_LEN);
vgid_s[ID_LEN] = '\0';
if (!(vgn = hash_lookup(_vgidhash, vgid_s)))
return NULL;
return pool_strdup(cmd->mem, vgn->vgname);
}

9
lib/vgcache/vgcache.h
View File

@ -12,10 +12,13 @@
#include <asm/page.h>
#include "dev-cache.h"
#include "list.h"
#include "uuid.h"
#include "toolcontext.h"
struct vgname_entry {
struct list pvdevs;
char *vgname;
char vgid[ID_LEN + 1];
};
struct pvdev_list {
@ -28,9 +31,13 @@ void vgcache_destroy();
/* Return list of PVs in named VG */
struct list *vgcache_find(const char *vg_name);
struct list *vgcache_find_by_vgid(const char *vgid);
/* FIXME Temporary function */
char *vgname_from_vgid(struct cmd_context *cmd, struct id *vgid);
/* Add/delete a device */
int vgcache_add(const char *vg_name, struct device *dev);
int vgcache_add(const char *vg_name, const char *vgid, struct device *dev);
void vgcache_del(const char *vg_name);
#endif

50
tools/lvchange.c
View File

@ -126,7 +126,6 @@ static int lvchange_permission(struct cmd_context *cmd,
struct logical_volume *lv)
{
int lv_access;
char lvidbuf[128];
lv_access = arg_int_value(cmd, permission_ARG, 0);
@ -152,10 +151,7 @@ static int lvchange_permission(struct cmd_context *cmd,
lv->name);
}
if (!lvid(lv, lvidbuf, sizeof(lvidbuf)))
return 0;
if (!lock_vol(cmd, lvidbuf, LCK_LV_SUSPEND)) {
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_SUSPEND | LCK_HOLD)) {
log_error("Failed to lock %s", lv->name);
return 0;
}
@ -163,14 +159,14 @@ static int lvchange_permission(struct cmd_context *cmd,
log_very_verbose("Updating logical volume \"%s\" on disk(s)", lv->name);
if (!cmd->fid->ops->vg_write(cmd->fid, lv->vg)) {
/* FIXME: Attempt reversion? */
lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK);
lock_vol(cmd, lv->lvid.s, LCK_LV_UNLOCK);
return 0;
}
backup(lv->vg);
log_very_verbose("Updating permissions for \"%s\" in kernel", lv->name);
if (!lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK)) {
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_UNLOCK)) {
log_error("Problem reactivating %s", lv->name);
return 0;
}
@ -182,7 +178,6 @@ static int lvchange_availability(struct cmd_context *cmd,
struct logical_volume *lv)
{
int activate = 0;
char lvidbuf[128];
if (strcmp(arg_str_value(cmd, available_ARG, "n"), "n"))
activate = 1;
@ -191,21 +186,16 @@ static int lvchange_availability(struct cmd_context *cmd,
lv->minor = arg_int_value(cmd, minor_ARG, -1);
}
if (!lvid(lv, lvidbuf, sizeof(lvidbuf)))
return 0;
if (activate) {
log_verbose("Activating logical volume \"%s\"", lv->name);
if (!lock_vol(cmd, lvidbuf, LCK_LV_ACTIVATE))
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_ACTIVATE))
return 0;
} else {
log_verbose("Deactivating logical volume \"%s\"", lv->name);
if (!lock_vol(cmd, lvidbuf, LCK_LV_DEACTIVATE))
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_DEACTIVATE))
return 0;
}
lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK);
return 1;
}
@ -213,7 +203,6 @@ static int lvchange_contiguous(struct cmd_context *cmd,
struct logical_volume *lv)
{
int lv_allocation = 0;
char lvidbuf[128];
if (strcmp(arg_str_value(cmd, contiguous_ARG, "n"), "n"))
lv_allocation |= ALLOC_CONTIGUOUS;
@ -250,10 +239,7 @@ static int lvchange_contiguous(struct cmd_context *cmd,
lv->name);
}
if (!lvid(lv, lvidbuf, sizeof(lvidbuf)))
return 0;
if (!lock_vol(cmd, lvidbuf, LCK_LV_SUSPEND)) {
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_SUSPEND | LCK_HOLD)) {
log_error("Failed to lock %s", lv->name);
return 0;
}
@ -261,14 +247,14 @@ static int lvchange_contiguous(struct cmd_context *cmd,
log_very_verbose("Updating logical volume \"%s\" on disk(s)", lv->name);
if (!cmd->fid->ops->vg_write(cmd->fid, lv->vg)) {
/* FIXME: Attempt reversion? */
lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK);
lock_vol(cmd, lv->lvid.s, LCK_LV_UNLOCK);
return 0;
}
backup(lv->vg);
log_very_verbose("Reactivating \"%s\" in kernel", lv->name);
if (!lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK)) {
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_UNLOCK)) {
log_error("Problem reactivating %s", lv->name);
return 0;
}
@ -281,7 +267,6 @@ static int lvchange_readahead(struct cmd_context *cmd,
struct logical_volume *lv)
{
int read_ahead = 0;
char lvidbuf[128];
read_ahead = arg_int_value(cmd, readahead_ARG, 0);
@ -303,10 +288,7 @@ static int lvchange_readahead(struct cmd_context *cmd,
log_verbose("Setting read ahead to %u for \"%s\"", read_ahead,
lv->name);
if (!lvid(lv, lvidbuf, sizeof(lvidbuf)))
return 0;
if (!lock_vol(cmd, lvidbuf, LCK_LV_SUSPEND)) {
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_SUSPEND | LCK_HOLD)) {
log_error("Failed to lock %s", lv->name);
return 0;
}
@ -314,14 +296,14 @@ static int lvchange_readahead(struct cmd_context *cmd,
log_very_verbose("Updating logical volume \"%s\" on disk(s)", lv->name);
if (!cmd->fid->ops->vg_write(cmd->fid, lv->vg)) {
/* FIXME: Attempt reversion? */
lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK);
lock_vol(cmd, lv->lvid.s, LCK_LV_UNLOCK);
return 0;
}
backup(lv->vg);
log_very_verbose("Reactivating \"%s\" in kernel", lv->name);
if (!lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK)) {
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_UNLOCK)) {
log_error("Problem reactivating %s", lv->name);
return 0;
}
@ -332,7 +314,6 @@ static int lvchange_readahead(struct cmd_context *cmd,
static int lvchange_persistent(struct cmd_context *cmd,
struct logical_volume *lv)
{
char lvidbuf[128];
if (!strcmp(arg_str_value(cmd, persistent_ARG, "n"), "n")) {
if (!(lv->status & FIXED_MINOR)) {
@ -358,10 +339,7 @@ static int lvchange_persistent(struct cmd_context *cmd,
lv->minor, lv->name);
}
if (!lvid(lv, lvidbuf, sizeof(lvidbuf)))
return 0;
if (!lock_vol(cmd, lvidbuf, LCK_LV_SUSPEND)) {
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_SUSPEND | LCK_HOLD)) {
log_error("Failed to lock %s", lv->name);
return 0;
}
@ -369,14 +347,14 @@ static int lvchange_persistent(struct cmd_context *cmd,
log_very_verbose("Updating logical volume \"%s\" on disk(s)", lv->name);
if (!cmd->fid->ops->vg_write(cmd->fid, lv->vg)) {
/* FIXME: Attempt reversion? */
lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK);
lock_vol(cmd, lv->lvid.s, LCK_LV_UNLOCK);
return 0;
}
backup(lv->vg);
log_very_verbose("Reactivating \"%s\" in kernel", lv->name);
if (!lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK)) {
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_UNLOCK)) {
log_error("Problem reactivating %s", lv->name);
return 0;
}

17
tools/lvcreate.c
View File

@ -277,7 +277,7 @@ static int _zero_lv(struct cmd_context *cmd, struct logical_volume *lv)
log_verbose("Zeroing start of logical volume \"%s\"", lv->name);
if (!(dev = dev_cache_get(name, NULL))) {
log_error("\"%s\" not found: device not zeroed", name);
log_error("%s: not found: device not zeroed", name);
return 0;
}
@ -297,7 +297,6 @@ static int _lvcreate(struct cmd_context *cmd, struct lvcreate_params *lp)
struct volume_group *vg;
struct logical_volume *lv, *org;
struct list *pvh;
char lvidbuf[128];
if (lp->contiguous)
status |= ALLOC_CONTIGUOUS;
@ -395,9 +394,6 @@ static int _lvcreate(struct cmd_context *cmd, struct lvcreate_params *lp)
log_verbose("Setting minor number to %d", lv->minor);
}
if (!lvid(lv, lvidbuf, sizeof(lvidbuf)))
return 0;
if (!archive(vg))
return 0;
@ -405,7 +401,7 @@ static int _lvcreate(struct cmd_context *cmd, struct lvcreate_params *lp)
if (!cmd->fid->ops->vg_write(cmd->fid, vg))
return 0;
if (!lock_vol(cmd, lvidbuf, LCK_LV_ACTIVATE))
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_ACTIVATE))
return 0;
if (lp->zero || lp->snapshot)
@ -413,16 +409,12 @@ static int _lvcreate(struct cmd_context *cmd, struct lvcreate_params *lp)
else
log_print("WARNING: \"%s\" not zeroed", lv->name);
lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK);
if (lp->snapshot) {
if (!lock_vol(cmd, lvidbuf, LCK_LV_DEACTIVATE)) {
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_DEACTIVATE)) {
log_err("Couldn't lock snapshot.");
return 0;
}
lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK);
if (!vg_add_snapshot(org, lv, 1, lp->chunk_size)) {
log_err("Couldn't create snapshot.");
return 0;
@ -432,9 +424,8 @@ static int _lvcreate(struct cmd_context *cmd, struct lvcreate_params *lp)
if (!cmd->fid->ops->vg_write(cmd->fid, vg))
return 0;
if (!lock_vol(cmd, lvidbuf, LCK_LV_ACTIVATE))
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_ACTIVATE))
return 0;
lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK);
}
backup(vg);

20
tools/lvremove.c
View File

@ -36,7 +36,6 @@ static int lvremove_single(struct cmd_context *cmd, struct logical_volume *lv)
{
struct volume_group *vg;
int active;
char lvidbuf[128];
vg = lv->vg;
@ -56,7 +55,7 @@ static int lvremove_single(struct cmd_context *cmd, struct logical_volume *lv)
return ECMD_FAILED;
}
active = lv_active(lv);
active = (lv_active(lv) > 0);
if (active && !arg_count(cmd, force_ARG)) {
if (yes_no_prompt("Do you really want to remove active "
@ -68,22 +67,21 @@ static int lvremove_single(struct cmd_context *cmd, struct logical_volume *lv)
}
}
if (!lvid(lv, lvidbuf, sizeof(lvidbuf)))
return 0;
if (!archive(vg))
return ECMD_FAILED;
if (!lock_vol(cmd, lvidbuf, LCK_LV_DEACTIVATE)) {
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_DEACTIVATE)) {
log_error("Unable to deactivate logical volume \"%s\"",
lv->name);
return ECMD_FAILED;
}
log_verbose("Removing snapshot.");
if (lv_is_cow(lv) && !vg_remove_snapshot(lv->vg, lv)) {
stack;
return ECMD_FAILED;
if (lv_is_cow(lv)) {
log_verbose("Removing snapshot %s", lv->name);
if (!vg_remove_snapshot(lv->vg, lv)) {
stack;
return ECMD_FAILED;
}
}
log_verbose("Releasing logical volume \"%s\"", lv->name);
@ -98,8 +96,6 @@ static int lvremove_single(struct cmd_context *cmd, struct logical_volume *lv)
backup(vg);
lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK);
log_print("Logical volume \"%s\" successfully removed", lv->name);
return 0;
}

11
tools/lvrename.c
View File

@ -26,7 +26,6 @@ int lvrename(struct cmd_context *cmd, int argc, char **argv)
char *lv_name_old, *lv_name_new;
char *vg_name, *vg_name_new;
char *st;
char lvidbuf[128];
struct volume_group *vg;
struct logical_volume *lv;
@ -121,13 +120,11 @@ int lvrename(struct cmd_context *cmd, int argc, char **argv)
lv = lvl->lv;
if (!lvid(lv, lvidbuf, sizeof(lvidbuf)))
goto error;
if (!archive(lv->vg))
goto error;
if (!lock_vol(cmd, lvidbuf, LCK_LV_SUSPEND | LCK_NONBLOCK))
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_SUSPEND | LCK_HOLD |
LCK_NONBLOCK))
goto error;
if (!(lv->name = pool_strdup(cmd->mem, lv_name_new))) {
@ -139,7 +136,7 @@ int lvrename(struct cmd_context *cmd, int argc, char **argv)
if (!(cmd->fid->ops->vg_write(cmd->fid, vg)))
goto lverror;
lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK);
lock_vol(cmd, lv->lvid.s, LCK_LV_UNLOCK);
backup(lv->vg);
@ -152,7 +149,7 @@ int lvrename(struct cmd_context *cmd, int argc, char **argv)
lverror:
lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK);
lock_vol(cmd, lv->lvid.s, LCK_LV_UNLOCK);
error:
lock_vol(cmd, vg_name, LCK_VG_UNLOCK);

10
tools/lvresize.c
View File

@ -31,7 +31,6 @@ int lvresize(struct cmd_context *cmd, int argc, char **argv)
uint32_t size_rest;
sign_t sign = SIGN_NONE;
char *lv_name, *vg_name;
char lvidbuf[128];
char *st;
char *dummy;
const char *cmd_name;
@ -332,10 +331,7 @@ int lvresize(struct cmd_context *cmd, int argc, char **argv)
goto error;
}
if (!lvid(lv, lvidbuf, sizeof(lvidbuf)))
goto error;
if (!lock_vol(cmd, lvidbuf, LCK_LV_SUSPEND)) {
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_SUSPEND | LCK_HOLD)) {
log_error("Can't get lock for %s", lv_name);
goto error;
}
@ -343,13 +339,13 @@ int lvresize(struct cmd_context *cmd, int argc, char **argv)
/* store vg on disk(s) */
if (!cmd->fid->ops->vg_write(cmd->fid, vg)) {
/* FIXME: Attempt reversion? */
lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK);
lock_vol(cmd, lv->lvid.s, LCK_LV_UNLOCK);
goto error;
}
backup(vg);
if (!lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK)) {
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_UNLOCK)) {
log_error("Problem reactivating %s", lv_name);
goto error;
}

8
tools/vgchange.c
View File

@ -31,19 +31,13 @@ static int _activate_lvs_in_vg(struct cmd_context *cmd,
struct list *lvh;
struct logical_volume *lv;
int count = 0;
char lvidbuf[128];
list_iterate(lvh, &vg->lvs) {
lv = list_item(lvh, struct lv_list)->lv;
if (!lvid(lv, lvidbuf, sizeof(lvidbuf)))
if (!lock_vol(cmd, lv->lvid.s, lock | LCK_NONBLOCK))
continue;
if (!lock_vol(cmd, lvidbuf, lock | LCK_NONBLOCK))
continue;
lock_vol(cmd, lvidbuf, LCK_LV_UNLOCK);
count++;
}