/*
* VG locking is by VG name.
* FIXME This should become VG uuid.
*/
static int _lock_vol(struct cmd_context *cmd, const char *resource,
uint32_t flags, lv_operation_t lv_op, struct logical_volume *lv)
{
uint32_t lck_type = flags & LCK_TYPE_MASK;
uint32_t lck_scope = flags & LCK_SCOPE_MASK;
int ret = 0;
_block_signals(flags);
_lock_memory(cmd, lv_op);
assert(resource);
if (!*resource) {
log_error(INTERNAL_ERROR "Use of P_orphans is deprecated.");
return 0;
}
if ((is_orphan_vg(resource) || is_global_vg(resource)) && (flags & LCK_CACHE)) {
log_error(INTERNAL_ERROR "P_%s referenced", resource);
return 0;
}
if (cmd->metadata_read_only && lck_type == LCK_WRITE &&
strcmp(resource, VG_GLOBAL)) {
log_error("Operation prohibited while global/metadata_read_only is set.");
return 0;
}
if ((ret = _locking.lock_resource(cmd, resource, flags, lv))) {
if (lck_scope == LCK_VG && !(flags & LCK_CACHE)) {
if (lck_type != LCK_UNLOCK)
lvmcache_lock_vgname(resource, lck_type == LCK_READ);
dev_reset_error_count(cmd);
}
_update_vg_lock_count(resource, flags);
} else
stack;
/* If unlocking, always remove lock from lvmcache even if operation failed. */
if (lck_scope == LCK_VG && !(flags & LCK_CACHE) && lck_type == LCK_UNLOCK) {
lvmcache_unlock_vgname(resource);
if (!ret)
_update_vg_lock_count(resource, flags);
}
_unlock_memory(cmd, lv_op);
_unblock_signals();
return ret;
}
/*
* ZFS Event Daemon (ZED).
*/
int
main(int argc, char *argv[])
{
struct zed_conf *zcp;
uint64_t saved_eid;
int64_t saved_etime[2];
zed_log_init(argv[0]);
zed_log_stderr_open(LOG_NOTICE);
zcp = zed_conf_create();
zed_conf_parse_opts(zcp, argc, argv);
if (zcp->do_verbose)
zed_log_stderr_open(LOG_INFO);
if (geteuid() != 0)
zed_log_die("Must be run as root");
(void) umask(0);
_setup_sig_handlers();
zed_conf_parse_file(zcp);
zed_file_close_from(STDERR_FILENO + 1);
if (chdir("/") < 0)
zed_log_die("Failed to change to root directory");
if (zed_conf_scan_dir(zcp) < 0)
exit(EXIT_FAILURE);
if (zcp->do_memlock)
_lock_memory();
if (!zcp->do_foreground) {
_become_daemon();
zed_log_syslog_open(LOG_DAEMON);
zed_log_stderr_close();
}
zed_log_msg(LOG_NOTICE,
"ZFS Event Daemon %s-%s", ZFS_META_VERSION, ZFS_META_RELEASE);
(void) zed_conf_write_pid(zcp);
if (zed_conf_open_state(zcp) < 0)
exit(EXIT_FAILURE);
if (zed_conf_read_state(zcp, &saved_eid, saved_etime) < 0)
exit(EXIT_FAILURE);
retry:
if (zed_event_init(zcp)) {
/*
* If we failed to open /dev/zfs, but force was requested, we
* sleep waiting for it to come alive. This lets zed sit around
* waiting for the kernel module to load.
*/
if (zcp->do_force) {
sleep(30);
if (!_got_exit) goto retry;
}
zed_log_die("Failed to initialize libzfs");
}
zed_event_seek(zcp, saved_eid, saved_etime);
while (!_got_exit) {
if (_got_hup) {
_got_hup = 0;
(void) zed_conf_scan_dir(zcp);
}
if (zed_event_service(zcp)) break;
}
zed_log_msg(LOG_NOTICE, "Exiting");
zed_event_fini(zcp);
if (zcp->do_force && !_got_exit) {
goto retry;
}
zed_conf_destroy(zcp);
zed_log_fini();
exit(EXIT_SUCCESS);
}
int _lock_code ( void *_lockaddr, unsigned long _locksize )
{
return _lock_memory(_my_cs(),_lockaddr,_locksize) ;
}
/*
* ZFS Event Daemon (ZED).
*/
int
main(int argc, char *argv[])
{
struct zed_conf *zcp;
uint64_t saved_eid;
int64_t saved_etime[2];
zed_log_init(argv[0]);
zed_log_stderr_open(LOG_NOTICE);
zcp = zed_conf_create();
zed_conf_parse_opts(zcp, argc, argv);
if (zcp->do_verbose)
zed_log_stderr_open(LOG_INFO);
if (geteuid() != 0)
zed_log_die("Must be run as root");
(void) umask(0);
_setup_sig_handlers();
zed_conf_parse_file(zcp);
zed_file_close_from(STDERR_FILENO + 1);
if (chdir("/") < 0)
zed_log_die("Failed to change to root directory");
if (zed_conf_scan_dir(zcp) < 0)
exit(EXIT_FAILURE);
if (zcp->do_memlock)
_lock_memory();
if (!zcp->do_foreground) {
_become_daemon();
zed_log_syslog_open(LOG_DAEMON);
zed_log_stderr_close();
}
zed_log_msg(LOG_NOTICE,
"ZFS Event Daemon %s-%s", ZFS_META_VERSION, ZFS_META_RELEASE);
(void) zed_conf_write_pid(zcp);
if (zed_conf_open_state(zcp) < 0)
exit(EXIT_FAILURE);
if (zed_conf_read_state(zcp, &saved_eid, saved_etime) < 0)
exit(EXIT_FAILURE);
zed_event_init(zcp);
zed_event_seek(zcp, saved_eid, saved_etime);
while (!_got_exit) {
if (_got_hup) {
_got_hup = 0;
(void) zed_conf_scan_dir(zcp);
}
zed_event_service(zcp);
}
zed_log_msg(LOG_NOTICE, "Exiting");
zed_event_fini(zcp);
zed_conf_destroy(zcp);
zed_log_fini();
exit(EXIT_SUCCESS);
}
int _lock_data ( void *_lockaddr, unsigned long _locksize )
{
return _lock_memory(_my_ds(),_lockaddr,_locksize) ;
}
