-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Extention of lu_object.h for metadata objects
+ * 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.
*
- * Copyright (C) 2006 Cluster File Systems, Inc.
+ * 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).
*
- * This file is part of Lustre, http://www.lustre.org.
+ * 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
*
- * Lustre is free 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.
+ * 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.
*
- * 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
- * GNU General Public License for more details.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2013, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * lustre/include/md_object.h
*
+ * Extention of lu_object.h for metadata objects
*/
#ifndef _LUSTRE_MD_OBJECT_H
#define _LUSTRE_MD_OBJECT_H
-/*
+/** \defgroup md md
* Sub-class of lu_object with methods common for "meta-data" objects in MDT
* stack.
*
* them, and treat them as directories.
*
* Examples: mdt, cmm, and mdt are implementations of md interface.
+ * @{
*/
/*
* super-class definitions.
*/
-#include <lu_object.h>
-#include <lvfs.h>
+#include <dt_object.h>
struct md_device;
struct md_device_operations;
struct md_object;
-
+struct obd_export;
enum {
- UCRED_INVALID = -1,
- UCRED_INIT = 0,
- UCRED_OLD = 1,
- UCRED_NEW = 2
-};
-
-struct md_ucred {
- __u32 mu_valid;
- __u32 mu_o_uid;
- __u32 mu_o_gid;
- __u32 mu_o_fsuid;
- __u32 mu_o_fsgid;
- __u32 mu_uid;
- __u32 mu_gid;
- __u32 mu_fsuid;
- __u32 mu_fsgid;
- __u32 mu_suppgids[2];
- __u32 mu_cap;
- __u32 mu_umask;
- struct group_info *mu_ginfo;
- struct md_identity *mu_identity;
+ MD_CAPAINFO_MAX = 5
};
-#define MD_CAPAINFO_MAX 5
-
-/* there are at most 5 fids in one operation, see rename, NOTE the last one
+/** there are at most 5 fids in one operation, see rename, NOTE the last one
* is a temporary one used for is_subdir() */
struct md_capainfo {
- const struct lu_fid *mc_fid[MD_CAPAINFO_MAX];
+ __u32 mc_auth;
+ __u32 mc_padding;
+ struct lu_fid mc_fid[MD_CAPAINFO_MAX];
struct lustre_capa *mc_capa[MD_CAPAINFO_MAX];
};
-/*
+struct md_quota {
+ struct obd_export *mq_exp;
+};
+
+/**
* Implemented in mdd/mdd_handler.c.
*
* XXX should be moved into separate .h/.c together with all md security
* related definitions.
*/
-struct md_ucred *md_ucred(const struct lu_env *env);
struct md_capainfo *md_capainfo(const struct lu_env *env);
+struct md_quota *md_quota(const struct lu_env *env);
-/* metadata attributes */
+/** metadata attributes */
enum ma_valid {
MA_INODE = (1 << 0),
MA_LOV = (1 << 1),
MA_FLAGS = (1 << 3),
MA_LMV = (1 << 4),
MA_ACL_DEF = (1 << 5),
- MA_LOV_DEF = (1 << 6)
+ MA_LOV_DEF = (1 << 6),
+ MA_LAY_GEN = (1 << 7),
+ MA_HSM = (1 << 8),
+ MA_SOM = (1 << 9),
+ MA_PFID = (1 << 10)
};
typedef enum {
MDT_PDO_LOCK = (1 << 1)
} mdl_type_t;
+/* memory structure for hsm attributes
+ * for fields description see the on disk structure hsm_attrs
+ * which is defined in lustre_idl.h
+ */
+struct md_hsm {
+ __u32 mh_compat;
+ __u32 mh_flags;
+ __u64 mh_arch_id;
+ __u64 mh_arch_ver;
+};
+
+#define IOEPOCH_INVAL 0
+
+/* memory structure for som attributes
+ * for fields description see the on disk structure som_attrs
+ * which is defined in lustre_idl.h
+ */
+struct md_som_data {
+ __u32 msd_compat;
+ __u32 msd_incompat;
+ __u64 msd_ioepoch;
+ __u64 msd_size;
+ __u64 msd_blocks;
+ __u64 msd_mountid;
+};
+
struct md_attr {
__u64 ma_valid;
__u64 ma_need;
__u64 ma_attr_flags;
struct lu_attr ma_attr;
+ struct lu_fid ma_pfid;
+ struct md_hsm ma_hsm;
struct lov_mds_md *ma_lmm;
- int ma_lmm_size;
struct lmv_stripe_md *ma_lmv;
- int ma_lmv_size;
void *ma_acl;
- int ma_acl_size;
struct llog_cookie *ma_cookie;
- int ma_cookie_size;
struct lustre_capa *ma_capa;
+ struct md_som_data *ma_som;
+ int ma_lmm_size;
+ int ma_lmv_size;
+ int ma_acl_size;
+ int ma_cookie_size;
+ __u16 ma_layout_gen;
};
-/* Additional parameters for create */
+/** Additional parameters for create */
struct md_op_spec {
union {
- /* symlink target */
+ /** symlink target */
const char *sp_symname;
- /* parent FID for cross-ref mkdir */
+ /** parent FID for cross-ref mkdir */
const struct lu_fid *sp_pfid;
- /* eadata for regular files */
+ /** eadata for regular files */
struct md_spec_reg {
- /* lov objs exist already */
+ /** lov objs exist already */
const struct lu_fid *fid;
- int no_lov_create;
const void *eadata;
int eadatalen;
} sp_ea;
} u;
-
- /* Create flag from client: such as MDS_OPEN_CREAT, and others. */
- __u32 sp_cr_flags;
- /* Should mdd do lookup sanity check or not. */
- int sp_cr_lookup;
+ /** Create flag from client: such as MDS_OPEN_CREAT, and others. */
+ __u64 sp_cr_flags;
+
+ /** don't create lov objects or llog cookie - this replay */
+ unsigned int no_create:1,
+ sp_cr_lookup:1, /* do lookup sanity check or not. */
+ sp_rm_entry:1; /* only remove name entry */
- /* Current lock mode for parent dir where create is performing. */
+ /** Current lock mode for parent dir where create is performing. */
mdl_mode_t sp_cr_mode;
- /* Check for split */
- int sp_ck_split;
+ /** to create directory */
+ const struct dt_index_features *sp_feat;
};
-/*
+/**
* Operations implemented for each md object (both directory and leaf).
*/
struct md_object_operations {
int (*moo_xattr_set)(const struct lu_env *env, struct md_object *obj,
const struct lu_buf *buf, const char *name,
- int fl, const struct lu_attr *la);
+ int fl);
int (*moo_xattr_del)(const struct lu_env *env, struct md_object *obj,
- const char *name, const struct lu_attr *la);
+ const char *name);
+
+ /** This method is used to swap the layouts between 2 objects */
+ int (*moo_swap_layouts)(const struct lu_env *env,
+ struct md_object *obj1, struct md_object *obj2,
+ __u64 flags);
+ /** \retval number of bytes actually read upon success */
int (*moo_readpage)(const struct lu_env *env, struct md_object *obj,
const struct lu_rdpg *rdpg);
int (*moo_readlink)(const struct lu_env *env, struct md_object *obj,
struct lu_buf *buf);
-
- /* part of cross-ref operation */
+ int (*moo_changelog)(const struct lu_env *env,
+ enum changelog_rec_type type, int flags,
+ struct md_object *obj);
+ /** part of cross-ref operation */
int (*moo_object_create)(const struct lu_env *env,
struct md_object *obj,
const struct md_op_spec *spec,
struct md_object *obj, int flag);
int (*moo_close)(const struct lu_env *env, struct md_object *obj,
- struct md_attr *ma);
-
+ struct md_attr *ma, int mode);
+
int (*moo_capa_get)(const struct lu_env *, struct md_object *,
struct lustre_capa *, int renewal);
+
+ int (*moo_object_sync)(const struct lu_env *, struct md_object *);
+
+ int (*moo_file_lock)(const struct lu_env *env, struct md_object *obj,
+ struct lov_mds_md *lmm, struct ldlm_extent *extent,
+ struct lustre_handle *lockh);
+ int (*moo_file_unlock)(const struct lu_env *env, struct md_object *obj,
+ struct lov_mds_md *lmm,
+ struct lustre_handle *lockh);
+ int (*moo_object_lock)(const struct lu_env *env, struct md_object *obj,
+ struct lustre_handle *lh,
+ struct ldlm_enqueue_info *einfo,
+ void *policy);
};
-/*
+/**
* Operations implemented for each directory object.
*/
struct md_dir_operations {
struct md_op_spec *spec,
struct md_attr *ma);
- /* This method is used for creating data object for this meta object*/
+ /** This method is used for creating data object for this meta object*/
int (*mdo_create_data)(const struct lu_env *env, struct md_object *p,
struct md_object *o,
const struct md_op_spec *spec,
struct md_object *src_obj, const struct lu_name *lname,
struct md_attr *ma);
- int (*mdo_unlink)(const struct lu_env *env, struct md_object *pobj,
- struct md_object *cobj, const struct lu_name *lname,
- struct md_attr *ma);
+ int (*mdo_unlink)(const struct lu_env *env, struct md_object *pobj,
+ struct md_object *cobj, const struct lu_name *lname,
+ struct md_attr *ma, int no_name);
+
+ /** This method is used to compare a requested layout to an existing
+ * layout (struct lov_mds_md_v1/3 vs struct lov_mds_md_v1/3) */
+ int (*mdo_lum_lmm_cmp)(const struct lu_env *env,
+ struct md_object *cobj,
+ const struct md_op_spec *spec,
+ struct md_attr *ma);
- /* partial ops for cross-ref case */
+ /** partial ops for cross-ref case */
int (*mdo_name_insert)(const struct lu_env *env,
struct md_object *obj,
const struct lu_name *lname,
};
struct md_device_operations {
- /* meta-data device related handlers. */
- int (*mdo_root_get)(const struct lu_env *env, struct md_device *m,
- struct lu_fid *f);
+ /** meta-data device related handlers. */
+ int (*mdo_root_get)(const struct lu_env *env, struct md_device *m,
+ struct lu_fid *f);
int (*mdo_maxsize_get)(const struct lu_env *env, struct md_device *m,
int *md_size, int *cookie_size);
int (*mdo_statfs)(const struct lu_env *env, struct md_device *m,
- struct kstatfs *sfs);
+ struct obd_statfs *sfs);
int (*mdo_init_capa_ctxt)(const struct lu_env *env, struct md_device *m,
int mode, unsigned long timeout, __u32 alg,
int (*mdo_update_capa_key)(const struct lu_env *env,
struct md_device *m,
struct lustre_capa_key *key);
+
+ int (*mdo_llog_ctxt_get)(const struct lu_env *env,
+ struct md_device *m, int idx, void **h);
+
+ int (*mdo_iocontrol)(const struct lu_env *env, struct md_device *m,
+ unsigned int cmd, int len, void *data);
};
enum md_upcall_event {
- /*sync the md layer*/
+ /** Sync the md layer*/
MD_LOV_SYNC = (1 << 0),
- MD_NO_TRANS = (1 << 1), /* Just for split, no need trans, for replay */
- MD_LOV_CONFIG = (1 << 2)
+ /** Just for split, no need trans, for replay */
+ MD_NO_TRANS = (1 << 1),
+ MD_LOV_CONFIG = (1 << 2),
+ /** Trigger quota recovery */
+ MD_LOV_QUOTA = (1 << 3)
};
struct md_upcall {
- /* this lock protects upcall using against its removal
+ /** this lock protects upcall using against its removal
* read lock is for usage the upcall, write - for init/fini */
- struct rw_semaphore mu_upcall_sem;
- /* device to call, upper layer normally */
+ struct rw_semaphore mu_upcall_sem;
+ /** device to call, upper layer normally */
struct md_device *mu_upcall_dev;
- /* upcall function */
+ /** upcall function */
int (*mu_upcall)(const struct lu_env *env, struct md_device *md,
- enum md_upcall_event ev);
+ enum md_upcall_event ev, void *data);
};
struct md_device {
- struct lu_device md_lu_dev;
- struct md_device_operations *md_ops;
- struct md_upcall md_upcall;
+ struct lu_device md_lu_dev;
+ const struct md_device_operations *md_ops;
+ struct md_upcall md_upcall;
};
static inline void md_upcall_init(struct md_device *m, void *upcl)
{
- init_rwsem(&m->md_upcall.mu_upcall_sem);
- m->md_upcall.mu_upcall_dev = NULL;
- m->md_upcall.mu_upcall = upcl;
+ init_rwsem(&m->md_upcall.mu_upcall_sem);
+ m->md_upcall.mu_upcall_dev = NULL;
+ m->md_upcall.mu_upcall = upcl;
}
static inline void md_upcall_dev_set(struct md_device *m, struct md_device *up)
{
- down_write(&m->md_upcall.mu_upcall_sem);
- m->md_upcall.mu_upcall_dev = up;
- up_write(&m->md_upcall.mu_upcall_sem);
+ down_write(&m->md_upcall.mu_upcall_sem);
+ m->md_upcall.mu_upcall_dev = up;
+ up_write(&m->md_upcall.mu_upcall_sem);
}
static inline void md_upcall_fini(struct md_device *m)
{
- down_write(&m->md_upcall.mu_upcall_sem);
- m->md_upcall.mu_upcall_dev = NULL;
- m->md_upcall.mu_upcall = NULL;
- up_write(&m->md_upcall.mu_upcall_sem);
+ down_write(&m->md_upcall.mu_upcall_sem);
+ m->md_upcall.mu_upcall_dev = NULL;
+ m->md_upcall.mu_upcall = NULL;
+ up_write(&m->md_upcall.mu_upcall_sem);
}
static inline int md_do_upcall(const struct lu_env *env, struct md_device *m,
- enum md_upcall_event ev)
-{
- int rc = 0;
- down_read(&m->md_upcall.mu_upcall_sem);
- if (m->md_upcall.mu_upcall_dev != NULL &&
- m->md_upcall.mu_upcall_dev->md_upcall.mu_upcall != NULL) {
- rc = m->md_upcall.mu_upcall_dev->md_upcall.mu_upcall(env,
- m->md_upcall.mu_upcall_dev, ev);
- }
- up_read(&m->md_upcall.mu_upcall_sem);
- return rc;
+ enum md_upcall_event ev, void *data)
+{
+ int rc = 0;
+ down_read(&m->md_upcall.mu_upcall_sem);
+ if (m->md_upcall.mu_upcall_dev != NULL &&
+ m->md_upcall.mu_upcall_dev->md_upcall.mu_upcall != NULL) {
+ rc = m->md_upcall.mu_upcall_dev->md_upcall.mu_upcall(env,
+ m->md_upcall.mu_upcall_dev,
+ ev, data);
+ }
+ up_read(&m->md_upcall.mu_upcall_sem);
+ return rc;
}
struct md_object {
- struct lu_object mo_lu;
- struct md_object_operations *mo_ops;
- struct md_dir_operations *mo_dir_ops;
+ struct lu_object mo_lu;
+ const struct md_object_operations *mo_ops;
+ const struct md_dir_operations *mo_dir_ops;
};
-static inline int lu_device_is_md(const struct lu_device *d)
-{
- return ergo(d != NULL, d->ld_type->ldt_tags & LU_DEVICE_MD);
-}
+/**
+ * seq-server site.
+ */
+struct seq_server_site {
+ struct lu_site *ss_lu;
+ /**
+ * mds number of this site.
+ */
+ mdsno_t ss_node_id;
+ /**
+ * Fid location database
+ */
+ struct lu_server_fld *ss_server_fld;
+ struct lu_client_fld *ss_client_fld;
+
+ /**
+ * Server Seq Manager
+ */
+ struct lu_server_seq *ss_server_seq;
+
+ /**
+ * Controller Seq Manager
+ */
+ struct lu_server_seq *ss_control_seq;
+ struct obd_export *ss_control_exp;
+
+ /**
+ * Client Seq Manager
+ */
+ struct lu_client_seq *ss_client_seq;
+};
static inline struct md_device *lu2md_dev(const struct lu_device *d)
{
- LASSERT(lu_device_is_md(d));
+ LASSERT(IS_ERR(d) || lu_device_is_md(d));
return container_of0(d, struct md_device, md_lu_dev);
}
static inline struct md_object *lu2md(const struct lu_object *o)
{
- LASSERT(lu_device_is_md(o->lo_dev));
+ LASSERT(o == NULL || IS_ERR(o) || lu_device_is_md(o->lo_dev));
return container_of0(o, struct md_object, mo_lu);
}
static inline struct md_device *md_obj2dev(const struct md_object *o)
{
- LASSERT(lu_device_is_md(o->mo_lu.lo_dev));
+ LASSERT(o == NULL || IS_ERR(o) || lu_device_is_md(o->mo_lu.lo_dev));
return container_of0(o->mo_lu.lo_dev, struct md_device, md_lu_dev);
}
static inline int md_device_init(struct md_device *md, struct lu_device_type *t)
{
- return lu_device_init(&md->md_lu_dev, t);
+ return lu_device_init(&md->md_lu_dev, t);
}
static inline void md_device_fini(struct md_device *md)
{
- lu_device_fini(&md->md_lu_dev);
+ lu_device_fini(&md->md_lu_dev);
+}
+
+static inline struct md_object *md_object_find_slice(const struct lu_env *env,
+ struct md_device *md,
+ const struct lu_fid *f)
+{
+ return lu2md(lu_object_find_slice(env, md2lu_dev(md), f, NULL));
}
-/* md operations */
+
+/** md operations */
static inline int mo_permission(const struct lu_env *env,
struct md_object *p,
struct md_object *c,
return m->mo_ops->moo_readlink(env, m, buf);
}
+static inline int mo_changelog(const struct lu_env *env,
+ enum changelog_rec_type type,
+ int flags, struct md_object *m)
+{
+ LASSERT(m->mo_ops->moo_changelog);
+ return m->mo_ops->moo_changelog(env, type, flags, m);
+}
+
static inline int mo_attr_set(const struct lu_env *env,
struct md_object *m,
const struct md_attr *at)
static inline int mo_xattr_del(const struct lu_env *env,
struct md_object *m,
- const char *name,
- const struct lu_attr *la)
+ const char *name)
{
LASSERT(m->mo_ops->moo_xattr_del);
- return m->mo_ops->moo_xattr_del(env, m, name, la);
+ return m->mo_ops->moo_xattr_del(env, m, name);
}
static inline int mo_xattr_set(const struct lu_env *env,
struct md_object *m,
const struct lu_buf *buf,
const char *name,
- int flags,
- const struct lu_attr *la)
+ int flags)
{
LASSERT(m->mo_ops->moo_xattr_set);
- return m->mo_ops->moo_xattr_set(env, m, buf, name, flags, la);
+ return m->mo_ops->moo_xattr_set(env, m, buf, name, flags);
}
static inline int mo_xattr_list(const struct lu_env *env,
return m->mo_ops->moo_xattr_list(env, m, buf);
}
+static inline int mo_swap_layouts(const struct lu_env *env,
+ struct md_object *o1,
+ struct md_object *o2, __u64 flags)
+{
+ LASSERT(o1->mo_ops->moo_swap_layouts);
+ LASSERT(o2->mo_ops->moo_swap_layouts);
+ if (o1->mo_ops->moo_swap_layouts != o2->mo_ops->moo_swap_layouts)
+ return -EPERM;
+ return o1->mo_ops->moo_swap_layouts(env, o1, o2, flags);
+}
+
static inline int mo_open(const struct lu_env *env,
struct md_object *m,
int flags)
static inline int mo_close(const struct lu_env *env,
struct md_object *m,
- struct md_attr *ma)
+ struct md_attr *ma,
+ int mode)
{
LASSERT(m->mo_ops->moo_close);
- return m->mo_ops->moo_close(env, m, ma);
+ return m->mo_ops->moo_close(env, m, ma, mode);
}
static inline int mo_readpage(const struct lu_env *env,
return m->mo_ops->moo_capa_get(env, m, c, renewal);
}
+static inline int mo_object_sync(const struct lu_env *env, struct md_object *m)
+{
+ LASSERT(m->mo_ops->moo_object_sync);
+ return m->mo_ops->moo_object_sync(env, m);
+}
+
+static inline int mo_file_lock(const struct lu_env *env, struct md_object *m,
+ struct lov_mds_md *lmm,
+ struct ldlm_extent *extent,
+ struct lustre_handle *lockh)
+{
+ LASSERT(m->mo_ops->moo_file_lock);
+ return m->mo_ops->moo_file_lock(env, m, lmm, extent, lockh);
+}
+
+static inline int mo_file_unlock(const struct lu_env *env, struct md_object *m,
+ struct lov_mds_md *lmm,
+ struct lustre_handle *lockh)
+{
+ LASSERT(m->mo_ops->moo_file_unlock);
+ return m->mo_ops->moo_file_unlock(env, m, lmm, lockh);
+}
+
+static inline int mo_object_lock(const struct lu_env *env,
+ struct md_object *m,
+ struct lustre_handle *lh,
+ struct ldlm_enqueue_info *einfo,
+ void *policy)
+{
+ LASSERT(m->mo_ops->moo_object_lock);
+ return m->mo_ops->moo_object_lock(env, m, lh, einfo, policy);
+}
+
static inline int mdo_lookup(const struct lu_env *env,
struct md_object *p,
const struct lu_name *lname,
struct md_op_spec *spc,
struct md_attr *at)
{
- LASSERT(c->mo_dir_ops->mdo_create);
- return c->mo_dir_ops->mdo_create(env, p, lchild_name, c, spc, at);
+ LASSERT(p->mo_dir_ops->mdo_create);
+ return p->mo_dir_ops->mdo_create(env, p, lchild_name, c, spc, at);
}
static inline int mdo_create_data(const struct lu_env *env,
}
static inline int mdo_unlink(const struct lu_env *env,
- struct md_object *p,
- struct md_object *c,
- const struct lu_name *lname,
- struct md_attr *ma)
+ struct md_object *p,
+ struct md_object *c,
+ const struct lu_name *lname,
+ struct md_attr *ma, int no_name)
{
- LASSERT(c->mo_dir_ops->mdo_unlink);
- return c->mo_dir_ops->mdo_unlink(env, p, c, lname, ma);
+ LASSERT(p->mo_dir_ops->mdo_unlink);
+ return p->mo_dir_ops->mdo_unlink(env, p, c, lname, ma, no_name);
+}
+
+static inline int mdo_lum_lmm_cmp(const struct lu_env *env,
+ struct md_object *c,
+ const struct md_op_spec *spec,
+ struct md_attr *ma)
+{
+ LASSERT(c->mo_dir_ops->mdo_lum_lmm_cmp);
+ return c->mo_dir_ops->mdo_lum_lmm_cmp(env, c, spec, ma);
}
static inline int mdo_name_insert(const struct lu_env *env,
}
}
+/**
+ * Used in MDD/OUT layer for object lock rule
+ **/
+enum mdd_object_role {
+ MOR_SRC_PARENT,
+ MOR_SRC_CHILD,
+ MOR_TGT_PARENT,
+ MOR_TGT_CHILD,
+ MOR_TGT_ORPHAN
+};
+
+struct dt_device;
+/**
+ * Structure to hold object information. This is used to create object
+ * \pre llod_dir exist
+ */
+struct lu_local_obj_desc {
+ const char *llod_dir;
+ const char *llod_name;
+ __u32 llod_oid;
+ int llod_is_index;
+ const struct dt_index_features *llod_feat;
+ cfs_list_t llod_linkage;
+};
+
+int lustre_buf2som(void *buf, int rc, struct md_som_data *msd);
+int lustre_buf2hsm(void *buf, int rc, struct md_hsm *mh);
+void lustre_hsm2buf(void *buf, struct md_hsm *mh);
+
+enum {
+ UCRED_INVALID = -1,
+ UCRED_INIT = 0,
+ UCRED_OLD = 1,
+ UCRED_NEW = 2,
+};
+
+struct lu_ucred {
+ __u32 uc_valid;
+ __u32 uc_o_uid;
+ __u32 uc_o_gid;
+ __u32 uc_o_fsuid;
+ __u32 uc_o_fsgid;
+ __u32 uc_uid;
+ __u32 uc_gid;
+ __u32 uc_fsuid;
+ __u32 uc_fsgid;
+ __u32 uc_suppgids[2];
+ cfs_cap_t uc_cap;
+ __u32 uc_umask;
+ cfs_group_info_t *uc_ginfo;
+ struct md_identity *uc_identity;
+};
+
+struct lu_ucred *lu_ucred(const struct lu_env *env);
+
+struct lu_ucred *lu_ucred_check(const struct lu_env *env);
+
+struct lu_ucred *lu_ucred_assert(const struct lu_env *env);
+
+int lu_ucred_global_init(void);
+
+void lu_ucred_global_fini(void);
+
+#define md_cap_t(x) (x)
+
+#define MD_CAP_TO_MASK(x) (1 << (x))
+
+#define md_cap_raised(c, flag) (md_cap_t(c) & MD_CAP_TO_MASK(flag))
+
+/* capable() is copied from linux kernel! */
+static inline int md_capable(struct lu_ucred *uc, cfs_cap_t cap)
+{
+ if (md_cap_raised(uc->uc_cap, cap))
+ return 1;
+ return 0;
+}
+
+/** @} md */
#endif /* _LINUX_MD_OBJECT_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff