mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-22 17:35:59 +03:00
61 lines
1.1 KiB
C
61 lines
1.1 KiB
C
/*
|
|
* Copyright (C) 2001 Sistina Software (UK) Limited.
|
|
*
|
|
* This file is released under the LGPL.
|
|
*
|
|
*/
|
|
|
|
#include "lib.h"
|
|
#include "locking.h"
|
|
#include "locking_types.h"
|
|
#include "lvm-string.h"
|
|
#include "activate.h"
|
|
|
|
#include <signal.h>
|
|
|
|
/*
|
|
* No locking
|
|
*/
|
|
|
|
static void _no_fin_locking(void)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static int _no_lock_resource(struct cmd_context *cmd, const char *resource,
|
|
int flags)
|
|
{
|
|
switch (flags & LCK_SCOPE_MASK) {
|
|
case LCK_VG:
|
|
break;
|
|
case LCK_LV:
|
|
switch (flags & LCK_TYPE_MASK) {
|
|
case LCK_UNLOCK:
|
|
return lv_resume_if_active(cmd, resource);
|
|
case LCK_READ:
|
|
return lv_activate(cmd, resource);
|
|
case LCK_WRITE:
|
|
return lv_suspend_if_active(cmd, resource);
|
|
case LCK_EXCL:
|
|
return lv_deactivate(cmd, resource);
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
log_error("Unrecognised lock scope: %d",
|
|
flags & LCK_SCOPE_MASK);
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
int init_no_locking(struct locking_type *locking, struct config_tree *cf)
|
|
{
|
|
locking->lock_resource = _no_lock_resource;
|
|
locking->fin_locking = _no_fin_locking;
|
|
|
|
return 1;
|
|
}
|