diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/include/lustre_mdt.h')
-rw-r--r-- | drivers/staging/lustre/lustre/include/lustre_mdt.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/drivers/staging/lustre/lustre/include/lustre_mdt.h b/drivers/staging/lustre/lustre/include/lustre_mdt.h new file mode 100644 index 000000000000..dba26a6cfa38 --- /dev/null +++ b/drivers/staging/lustre/lustre/include/lustre_mdt.h @@ -0,0 +1,84 @@ +/* + * GPL HEADER START + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see + * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + * GPL HEADER END + */ +/* + * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. + * Use is subject to license terms. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. + */ + +#ifndef __LINUX_MDT_H +#define __LINUX_MDT_H + +/** \defgroup mdt mdt + * + * @{ + */ + +#include <lustre/lustre_idl.h> +#include <lustre_req_layout.h> +#include <md_object.h> +#include <dt_object.h> +#include <linux/libcfs/libcfs.h> + +/* + * Common thread info for mdt, seq and fld + */ +struct com_thread_info { + /* + * for req-layout interface. + */ + struct req_capsule *cti_pill; +}; + +enum { + ESERIOUS = 0x0001000 +}; + +static inline int err_serious(int rc) +{ + LASSERT(rc < 0); + LASSERT(-rc < ESERIOUS); + return -(-rc | ESERIOUS); +} + +static inline int clear_serious(int rc) +{ + if (rc < 0) + rc = -(-rc & ~ESERIOUS); + return rc; +} + +static inline int is_serious(int rc) +{ + return (rc < 0 && -rc & ESERIOUS); +} + +/** @} mdt */ + +#endif |