include/linux/dlm.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
5 **  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
6 **  Copyright (C) 2004-2011 Red Hat, Inc.  All rights reserved.
46  * cluster: cluster name, null terminated, up to DLM_LOCKSPACE_LEN (not
47  *   including terminating null).  Optional.  When cluster is null, it
48  *   is not used.  When set, dlm_new_lockspace() returns -EBADR if cluster
49  *   is not equal to the dlm cluster name.
57  *   dlm_new_lockspace() should return -EEXIST if the lockspace exists.
71  *   be used or not.  0: will be used, -EXXX will not be used.
72  *   -EOPNOTSUPP: the dlm does not have recovery_callbacks enabled.
77 int dlm_new_lockspace(const char *name, const char *cluster,
97  * mode: the requested mode of the lock (DLM_LOCK_)
109  * -EINVAL if any input parameters are invalid
110  * -EAGAIN if request would block and is flagged DLM_LKF_NOQUEUE
111  * -ENOMEM if there is no memory to process request
112  * -ENOTCONN if there is a communication error
128 	     int mode,
136 	     void (*bast) (void *astarg, int mode));
152  * -EINVAL if any input parameters are invalid
153  * -ENOTEMPTY if the lock still has sublocks
154  * -EBUSY if the lock is waiting for a remote lock operation
155  * -ENOTCONN if there is a communication error