/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * lustre/osd/osd_internal.h
- * Shared definitions and declarations for osd module
+ * GPL HEADER START
*
- * Copyright (c) 2006 Cluster File Systems, Inc.
- * Author: Nikita Danilov <nikita@clusterfs.com>
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of the Lustre file system, http://www.lustre.org
- * Lustre is a trademark of Cluster File Systems, Inc.
+ * 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.
*
- * You may have signed or agreed to another license before downloading
- * this software. If so, you are bound by the terms and conditions
- * of that agreement, and the following does not apply to you. See the
- * LICENSE file included with this distribution for more information.
+ * 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).
*
- * If you did not agree to a different license, then this copy of Lustre
- * is open source software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
+ * 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
*
- * In either case, Lustre 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
- * license text for more details.
+ * 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 2008 Sun Microsystems, Inc. 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.
+ *
+ * lustre/osd/osd_internal.h
+ *
+ * Shared definitions and declarations for osd module
+ *
+ * Author: Nikita Danilov <nikita@clusterfs.com>
*/
#ifndef _OSD_INTERNAL_H
/* struct dentry */
#include <linux/dcache.h>
#include <linux/lustre_iam.h>
+/* struct dirent64 */
+#include <linux/dirent.h>
+
+/* LUSTRE_OSD_NAME */
+#include <obd.h>
+/* class_register_type(), class_unregister_type(), class_get_type() */
+#include <obd_class.h>
+#include <lustre_disk.h>
#include <dt_object.h>
#include "osd_oi.h"
struct inode;
+#define OSD_OII_NOGEN (0)
#define OSD_COUNTERS (0)
+#ifdef HAVE_QUOTA_SUPPORT
+struct osd_ctxt {
+ __u32 oc_uid;
+ __u32 oc_gid;
+ __u32 oc_cap;
+};
+#endif
+
+/*
+ * osd device.
+ */
+struct osd_device {
+ /* super-class */
+ struct dt_device od_dt_dev;
+ /* information about underlying file system */
+ struct lustre_mount_info *od_mount;
+ /* object index */
+ struct osd_oi od_oi;
+ /*
+ * XXX temporary stuff for object index: directory where every object
+ * is named by its fid.
+ */
+ struct dt_object *od_obj_area;
+
+ /* Environment for transaction commit callback.
+ * Currently, OSD is based on ext3/JBD. Transaction commit in ext3/JBD
+ * is serialized, that is there is no more than one transaction commit
+ * at a time (JBD journal_commit_transaction() is serialized).
+ * This means that it's enough to have _one_ lu_context.
+ */
+ struct lu_env od_env_for_commit;
+
+ /*
+ * Fid Capability
+ */
+ unsigned int od_fl_capa:1;
+ unsigned long od_capa_timeout;
+ __u32 od_capa_alg;
+ struct lustre_capa_key *od_capa_keys;
+ struct hlist_head *od_capa_hash;
+
+ cfs_proc_dir_entry_t *od_proc_entry;
+ struct lprocfs_stats *od_stats;
+ /*
+ * statfs optimization: we cache a bit.
+ */
+ cfs_time_t od_osfs_age;
+ struct kstatfs od_kstatfs;
+ spinlock_t od_osfs_lock;
+
+ /**
+ * The following flag indicates, if it is interop mode or not.
+ * It will be initialized, using mount param.
+ */
+ __u32 od_iop_mode;
+};
+
+struct osd_it_ea_dirent {
+ __u64 oied_ino;
+ __u64 oied_off;
+ unsigned short oied_namelen;
+ unsigned int oied_type;
+ char oied_name[0];
+} __attribute__((packed));
+
+#define OSD_IT_EA_BUFSIZE CFS_PAGE_SIZE
+
+/**
+ * This is iterator's in-memory data structure in interoperability
+ * mode (i.e. iterator over ldiskfs style directory)
+ */
+struct osd_it_ea {
+ struct osd_object *oie_obj;
+ /** used in ldiskfs iterator, to stored file pointer */
+ struct file oie_file;
+ /** current file position */
+ __u64 oie_curr_pos;
+ /** next file position */
+ __u64 oie_next_pos;
+ /** how many entries have been read-cached from storage */
+ int oie_rd_dirent;
+ /** current entry is being iterated by caller */
+ int oie_it_dirent;
+ /** current processing entry */
+ struct osd_it_ea_dirent *oie_dirent;
+ /** buffer to hold entries, size == OSD_IT_EA_BUFSIZE */
+ void *oie_buf;
+};
+
+/**
+ * Iterator's in-memory data structure for IAM mode.
+ */
+struct osd_it_iam {
+ struct osd_object *oi_obj;
+ struct iam_path_descr *oi_ipd;
+ struct iam_iterator oi_it;
+};
+
struct osd_thread_info {
const struct lu_env *oti_env;
+ /**
+ * used for index operations.
+ */
+ struct dentry oti_obj_dentry;
+ struct dentry oti_child_dentry;
+
+ /** dentry for Iterator context. */
+ struct dentry oti_it_dentry;
struct lu_fid oti_fid;
struct osd_inode_id oti_id;
/*
* XXX temporary: for ->i_op calls.
*/
- struct qstr oti_str;
struct txn_param oti_txn;
+ struct timespec oti_time;
+ struct timespec oti_time2;
/*
- * XXX temporary: fake dentry used by xattr calls.
+ * XXX temporary: fake struct file for osd_object_sync
*/
- struct dentry oti_dentry;
- struct timespec oti_time;
+ struct file oti_file;
/*
* XXX temporary: for capa operations.
*/
struct lu_fid_pack oti_pack;
- char oti_ipd[DX_IPD_MAX_SIZE];
-#if OSD_COUNTERS
+ /**
+ * following ipd and it structures are used for osd_index_iam_lookup()
+ * these are defined separately as we might do index operation
+ * in open iterator session.
+ */
+
+ /** osd iterator context used for iterator session */
+
+ union {
+ struct osd_it_iam oti_it;
+ /** ldiskfs iterator data structure, see osd_it_ea_{init, fini} */
+ struct osd_it_ea oti_it_ea;
+ };
+
+ /** pre-allocated buffer used by oti_it_ea, size OSD_IT_EA_BUFSIZE */
+ void *oti_it_ea_buf;
+
+ /** IAM iterator for index operation. */
+ struct iam_iterator oti_idx_it;
+
+ /** union to guarantee that ->oti_ipd[] has proper alignment. */
+ union {
+ char oti_it_ipd[DX_IPD_MAX_SIZE];
+ long long oti_alignment_lieutenant;
+ };
+
+ union {
+ char oti_idx_ipd[DX_IPD_MAX_SIZE];
+ long long oti_alignment_lieutenant_colonel;
+ };
+
+
int oti_r_locks;
int oti_w_locks;
int oti_txns;
+ /** used in osd_fid_set() to put xattr */
+ struct lu_buf oti_buf;
+ /** used in osd_ea_fid_set() to set fid into common ea */
+ struct lustre_mdt_attrs oti_mdt_attrs;
+#ifdef HAVE_QUOTA_SUPPORT
+ struct osd_ctxt oti_ctxt;
#endif
+ struct lu_env oti_obj_delete_tx_env;
};
+#ifdef LPROCFS
+/* osd_lproc.c */
+void lprocfs_osd_init_vars(struct lprocfs_static_vars *lvars);
+int osd_procfs_init(struct osd_device *osd, const char *name);
+int osd_procfs_fini(struct osd_device *osd);
+void osd_lprocfs_time_start(const struct lu_env *env);
+void osd_lprocfs_time_end(const struct lu_env *env,
+ struct osd_device *osd, int op);
+#endif
+int osd_statfs(const struct lu_env *env, struct dt_device *dev,
+ struct kstatfs *sfs);
+
#endif /* __KERNEL__ */
#endif /* _OSD_INTERNAL_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff