Viewing: lustre_mds.h
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*
* MDS data structures.
* See also lustre_idl.h for wire formats of requests.
*/
#ifndef _LUSTRE_MDS_H
#define _LUSTRE_MDS_H
/** \defgroup mds mds
*
* @{
*/
#include <lustre_handles.h>
#include <uapi/linux/lustre/lustre_idl.h>
#include <lustre_lib.h>
#include <lustre_dlm.h>
#include <lustre_export.h>
struct md_rejig_data {
struct md_object *mrd_obj;
__u16 mrd_mirror_id;
};
#define MDD_OBD_NAME "mdd_obd"
#define MDD_OBD_UUID "mdd_obd_uuid"
static inline int md_should_create(enum mds_open_flags open_flags)
{
return !(open_flags & MDS_OPEN_DELAY_CREATE) &&
(open_flags & MDS_FMODE_WRITE) &&
!(open_flags & MDS_OPEN_LEASE);
}
/* do NOT or the MAY_*'s, you'll get the weakest */
static inline int mds_accmode(enum mds_open_flags open_flags)
{
unsigned int may_mask = 0;
if (open_flags & MDS_FMODE_READ)
may_mask |= MAY_READ;
if (open_flags & (MDS_FMODE_WRITE | MDS_OPEN_TRUNC | MDS_OPEN_APPEND))
may_mask |= MAY_WRITE;
if (open_flags & MDS_FMODE_EXEC)
may_mask = MAY_EXEC;
return may_mask;
}
/** @} mds */
#endif
