-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * This file is part of Lustre, http://www.lustre.org
+ * 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.
+ *
+ * Copyright (c) 2011, 2012, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/include/lustre_mds.h
*
* 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 <libcfs/kp30.h>
+#include <libcfs/libcfs.h>
#include <lustre/lustre_idl.h>
#include <lustre_lib.h>
#include <lustre_dlm.h>
-#include <lustre_log.h>
#include <lustre_export.h>
-#if defined(__linux__)
-#include <linux/lustre_mds.h>
-#elif defined(__APPLE__)
-#include <darwin/lustre_mds.h>
-#elif defined(__WINNT__)
-#include <winnt/lustre_mds.h>
-#else
-#error Unsupported operating system.
-#endif
-
-struct ldlm_lock_desc;
-struct mds_obd;
-struct ptlrpc_connection;
-struct ptlrpc_client;
-struct obd_export;
-struct ptlrpc_request;
-struct obd_device;
-struct ll_file_data;
-
-struct lustre_md {
- struct mds_body *body;
- struct lov_stripe_md *lsm;
-#ifdef CONFIG_FS_POSIX_ACL
- struct posix_acl *posix_acl;
-#endif
-};
-
-struct mdc_op_data {
- struct ll_fid fid1;
- struct ll_fid fid2;
- __u64 mod_time;
- const char *name;
- int namelen;
- __u32 create_mode;
- __u32 suppgids[2];
-};
-
-struct mds_update_record {
- __u32 ur_opcode;
- struct ll_fid *ur_fid1;
- struct ll_fid *ur_fid2;
- int ur_namelen;
- char *ur_name;
- int ur_tgtlen;
- char *ur_tgt;
- int ur_eadatalen;
- void *ur_eadata;
- int ur_cookielen;
- struct llog_cookie *ur_logcookies;
- struct iattr ur_iattr;
- struct lvfs_ucred ur_uc;
- __u64 ur_rdev;
- __u64 ur_time;
- __u32 ur_mode;
- __u32 ur_flags;
- struct lvfs_grp_hash_entry *ur_grp_entry;
+struct mds_group_info {
+ struct obd_uuid *uuid;
+ int group;
};
-/* file data for open files on MDS */
-struct mds_file_data {
- struct portals_handle mfd_handle; /* must be first */
- atomic_t mfd_refcount;
- struct list_head mfd_list; /* protected by med_open_lock */
- __u64 mfd_xid;
- int mfd_mode;
- struct dentry *mfd_dentry;
+struct mds_capa_info {
+ struct obd_uuid *uuid;
+ struct lustre_capa_key *capa;
};
-/* ACL */
-#ifdef CONFIG_FS_POSIX_ACL
-#ifdef HAVE_XATTR_ACL
-# define MDS_XATTR_NAME_ACL_ACCESS XATTR_NAME_ACL_ACCESS
-# define mds_xattr_acl_size(entry) xattr_acl_size(entry)
-# else
-# define MDS_XATTR_NAME_ACL_ACCESS POSIX_ACL_XATTR_ACCESS
-# define mds_xattr_acl_size(entry) posix_acl_xattr_size(entry)
-# endif
-# define LUSTRE_POSIX_ACL_MAX_ENTRIES (32)
-# define LUSTRE_POSIX_ACL_MAX_SIZE \
- (mds_xattr_acl_size(LUSTRE_POSIX_ACL_MAX_ENTRIES))
-#else
-# define LUSTRE_POSIX_ACL_MAX_SIZE 0
-#endif
-
-/* mds/mds_reint.c */
-int mds_reint_rec(struct mds_update_record *r, int offset,
- struct ptlrpc_request *req, struct lustre_handle *);
-
-/* mds/mds_lov.c */
-
-/* mdc/mdc_locks.c */
-int it_disposition(struct lookup_intent *it, int flag);
-void it_set_disposition(struct lookup_intent *it, int flag);
-void it_clear_disposition(struct lookup_intent *it, int flag);
-int it_open_error(int phase, struct lookup_intent *it);
-void mdc_set_lock_data(__u64 *lockh, void *data);
-int mdc_change_cbdata(struct obd_export *exp, struct ll_fid *fid,
- ldlm_iterator_t it, void *data);
-int mdc_intent_lock(struct obd_export *exp,
- struct mdc_op_data *,
- void *lmm, int lmmsize,
- struct lookup_intent *, int,
- struct ptlrpc_request **reqp,
- ldlm_blocking_callback cb_blocking, int extra_lock_flags);
-int mdc_enqueue(struct obd_export *exp,
- int lock_type,
- struct lookup_intent *it,
- int lock_mode,
- struct mdc_op_data *data,
- struct lustre_handle *lockh,
- void *lmm,
- int lmmlen,
- ldlm_completion_callback cb_completion,
- ldlm_blocking_callback cb_blocking,
- void *cb_data, int extra_lock_flags);
-
-/* mdc/mdc_request.c */
-int mdc_init_ea_size(struct obd_export *mdc_exp, struct obd_export *lov_exp);
-int mdc_req2lustre_md(struct ptlrpc_request *req, int offset,
- struct obd_export *exp, struct lustre_md *md);
-void mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md);
-int mdc_getstatus(struct obd_export *exp, struct ll_fid *rootfid);
-int mdc_getattr(struct obd_export *exp, struct ll_fid *fid,
- obd_valid valid, unsigned int ea_size,
- struct ptlrpc_request **request);
-int mdc_getattr_name(struct obd_export *exp, struct ll_fid *fid,
- const char *filename, int namelen, unsigned long valid,
- unsigned int ea_size, struct ptlrpc_request **request);
-int mdc_setattr(struct obd_export *exp, struct mdc_op_data *data,
- struct iattr *iattr, void *ea, int ealen, void *ea2, int ea2len,
- struct ptlrpc_request **request);
-int mdc_setxattr(struct obd_export *exp, struct ll_fid *fid,
- obd_valid valid, const char *xattr_name,
- const char *input, int input_size,
- int output_size, int flags,
- struct ptlrpc_request **request);
-int mdc_getxattr(struct obd_export *exp, struct ll_fid *fid,
- obd_valid valid, const char *xattr_name,
- const char *input, int input_size,
- int output_size, struct ptlrpc_request **request);
-int mdc_open(struct obd_export *exp, obd_id ino, int type, int flags,
- struct lov_mds_md *lmm, int lmm_size, struct lustre_handle *fh,
- struct ptlrpc_request **);
-struct obd_client_handle;
-void mdc_set_open_replay_data(struct obd_client_handle *och,
- struct ptlrpc_request *open_req);
-void mdc_clear_open_replay_data(struct obd_client_handle *och);
-int mdc_close(struct obd_export *, struct obdo *, struct obd_client_handle *,
- struct ptlrpc_request **);
-int mdc_readpage(struct obd_export *exp, struct ll_fid *mdc_fid, __u64 offset,
- struct page *, struct ptlrpc_request **);
-int mdc_create(struct obd_export *exp, struct mdc_op_data *op_data,
- const void *data, int datalen, int mode, __u32 uid, __u32 gid,
- __u32 cap_effective, __u64 rdev,struct ptlrpc_request **request);
-int mdc_unlink(struct obd_export *exp, struct mdc_op_data *data,
- struct ptlrpc_request **request);
-int mdc_link(struct obd_export *exp, struct mdc_op_data *data,
- struct ptlrpc_request **);
-int mdc_rename(struct obd_export *exp, struct mdc_op_data *data,
- const char *old, int oldlen, const char *new, int newlen,
- struct ptlrpc_request **request);
-int mdc_sync(struct obd_export *exp, struct ll_fid *fid,
- struct ptlrpc_request **);
-int mdc_create_client(struct obd_uuid uuid, struct ptlrpc_client *cl);
-
-/* Store the generation of a newly-created inode in |req| for replay. */
-void mdc_store_inode_generation(struct ptlrpc_request *req, int reqoff,
- int repoff);
-int mdc_llog_process(struct obd_export *, char *logname, llog_cb_t, void *data);
-int mdc_done_writing(struct obd_export *exp, struct obdo *);
+#define MDD_OBD_NAME "mdd_obd"
+#define MDD_OBD_UUID "mdd_obd_uuid"
-static inline void mdc_pack_fid(struct ll_fid *fid, obd_id ino, __u32 gen,
- int type)
+static inline int md_should_create(__u64 flags)
{
- fid->id = ino;
- fid->generation = gen;
- fid->f_type = type;
+ return !(flags & MDS_OPEN_DELAY_CREATE ||
+ !(flags & FMODE_WRITE));
}
-/* ioctls for trying requests */
-#define IOC_REQUEST_TYPE 'f'
-#define IOC_REQUEST_MIN_NR 30
+/* these are local flags, used only on the client, private */
+#define M_CHECK_STALE 0200000000
-#define IOC_REQUEST_GETATTR _IOWR('f', 30, long)
-#define IOC_REQUEST_READPAGE _IOWR('f', 31, long)
-#define IOC_REQUEST_SETATTR _IOWR('f', 32, long)
-#define IOC_REQUEST_CREATE _IOWR('f', 33, long)
-#define IOC_REQUEST_OPEN _IOWR('f', 34, long)
-#define IOC_REQUEST_CLOSE _IOWR('f', 35, long)
-#define IOC_REQUEST_MAX_NR 35
+/** @} mds */
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff