| /* |
| * 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. |
| * |
| * 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/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. |
| * |
| * Meta-data objects implement namespace operations: you can link, unlink |
| * them, and treat them as directories. |
| * |
| * Examples: mdt, cmm, and mdt are implementations of md interface. |
| * @{ |
| */ |
| |
| |
| /* |
| * super-class definitions. |
| */ |
| #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 |
| }; |
| |
| enum { |
| MD_CAPAINFO_MAX = 5 |
| }; |
| |
| /** 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 { |
| __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_capainfo *md_capainfo(const struct lu_env *env); |
| struct md_quota *md_quota(const struct lu_env *env); |
| |
| /** metadata attributes */ |
| enum ma_valid { |
| MA_INODE = (1 << 0), |
| MA_LOV = (1 << 1), |
| MA_COOKIE = (1 << 2), |
| MA_FLAGS = (1 << 3), |
| MA_LMV = (1 << 4), |
| MA_ACL_DEF = (1 << 5), |
| MA_LOV_DEF = (1 << 6), |
| MA_LAY_GEN = (1 << 7), |
| MA_HSM = (1 << 8), |
| MA_SOM = (1 << 9), |
| MA_PFID = (1 << 10) |
| }; |
| |
| typedef enum { |
| MDL_MINMODE = 0, |
| MDL_EX = 1, |
| MDL_PW = 2, |
| MDL_PR = 4, |
| MDL_CW = 8, |
| MDL_CR = 16, |
| MDL_NL = 32, |
| MDL_GROUP = 64, |
| MDL_MAXMODE |
| } mdl_mode_t; |
| |
| typedef enum { |
| MDT_NUL_LOCK = 0, |
| MDT_REG_LOCK = (1 << 0), |
| 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; |
| struct lmv_stripe_md *ma_lmv; |
| void *ma_acl; |
| struct llog_cookie *ma_cookie; |
| 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 */ |
| struct md_op_spec { |
| union { |
| /** symlink target */ |
| const char *sp_symname; |
| /** parent FID for cross-ref mkdir */ |
| const struct lu_fid *sp_pfid; |
| /** eadata for regular files */ |
| struct md_spec_reg { |
| /** lov objs exist already */ |
| const struct lu_fid *fid; |
| const void *eadata; |
| int eadatalen; |
| } sp_ea; |
| } u; |
| |
| /** 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. */ |
| mdl_mode_t sp_cr_mode; |
| |
| /** 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_permission)(const struct lu_env *env, |
| struct md_object *pobj, struct md_object *cobj, |
| struct md_attr *attr, int mask); |
| |
| int (*moo_attr_get)(const struct lu_env *env, struct md_object *obj, |
| struct md_attr *attr); |
| |
| int (*moo_attr_set)(const struct lu_env *env, struct md_object *obj, |
| const struct md_attr *attr); |
| |
| int (*moo_xattr_get)(const struct lu_env *env, struct md_object *obj, |
| struct lu_buf *buf, const char *name); |
| |
| int (*moo_xattr_list)(const struct lu_env *env, struct md_object *obj, |
| struct lu_buf *buf); |
| |
| int (*moo_xattr_set)(const struct lu_env *env, struct md_object *obj, |
| const struct lu_buf *buf, const char *name, |
| int fl); |
| |
| int (*moo_xattr_del)(const struct lu_env *env, struct md_object *obj, |
| 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); |
| 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_attr *ma); |
| |
| int (*moo_ref_add)(const struct lu_env *env, |
| struct md_object *obj, |
| const struct md_attr *ma); |
| |
| int (*moo_ref_del)(const struct lu_env *env, |
| struct md_object *obj, |
| struct md_attr *ma); |
| |
| int (*moo_open)(const struct lu_env *env, |
| struct md_object *obj, int flag); |
| |
| int (*moo_close)(const struct lu_env *env, struct md_object *obj, |
| 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 { |
| int (*mdo_is_subdir) (const struct lu_env *env, struct md_object *obj, |
| const struct lu_fid *fid, struct lu_fid *sfid); |
| |
| int (*mdo_lookup)(const struct lu_env *env, struct md_object *obj, |
| const struct lu_name *lname, struct lu_fid *fid, |
| struct md_op_spec *spec); |
| |
| mdl_mode_t (*mdo_lock_mode)(const struct lu_env *env, |
| struct md_object *obj, |
| mdl_mode_t mode); |
| |
| int (*mdo_create)(const struct lu_env *env, struct md_object *pobj, |
| const struct lu_name *lname, struct md_object *child, |
| struct md_op_spec *spec, |
| struct md_attr *ma); |
| |
| /** 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_attr *ma); |
| |
| int (*mdo_rename)(const struct lu_env *env, struct md_object *spobj, |
| struct md_object *tpobj, const struct lu_fid *lf, |
| const struct lu_name *lsname, struct md_object *tobj, |
| const struct lu_name *ltname, struct md_attr *ma); |
| |
| int (*mdo_link)(const struct lu_env *env, struct md_object *tgt_obj, |
| 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 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 */ |
| int (*mdo_name_insert)(const struct lu_env *env, |
| struct md_object *obj, |
| const struct lu_name *lname, |
| const struct lu_fid *fid, |
| const struct md_attr *ma); |
| |
| int (*mdo_name_remove)(const struct lu_env *env, |
| struct md_object *obj, |
| const struct lu_name *lname, |
| const struct md_attr *ma); |
| |
| int (*mdo_rename_tgt)(const struct lu_env *env, struct md_object *pobj, |
| struct md_object *tobj, const struct lu_fid *fid, |
| const struct lu_name *lname, struct md_attr *ma); |
| }; |
| |
| 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); |
| |
| int (*mdo_maxeasize_get)(const struct lu_env *env, struct md_device *m, |
| int *easize); |
| |
| int (*mdo_statfs)(const struct lu_env *env, struct md_device *m, |
| 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, |
| struct lustre_capa_key *keys); |
| |
| 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*/ |
| MD_LOV_SYNC = (1 << 0), |
| /** 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 |
| * read lock is for usage the upcall, write - for init/fini */ |
| struct rw_semaphore mu_upcall_sem; |
| /** device to call, upper layer normally */ |
| struct md_device *mu_upcall_dev; |
| /** upcall function */ |
| int (*mu_upcall)(const struct lu_env *env, struct md_device *md, |
| enum md_upcall_event ev, void *data); |
| }; |
| |
| struct md_device { |
| 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; |
| } |
| |
| 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); |
| } |
| |
| 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); |
| } |
| |
| static inline int md_do_upcall(const struct lu_env *env, struct md_device *m, |
| 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; |
| const struct md_object_operations *mo_ops; |
| const struct md_dir_operations *mo_dir_ops; |
| }; |
| |
| /** |
| * 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(IS_ERR(d) || lu_device_is_md(d)); |
| return container_of0(d, struct md_device, md_lu_dev); |
| } |
| |
| static inline struct lu_device *md2lu_dev(struct md_device *d) |
| { |
| return &d->md_lu_dev; |
| } |
| |
| static inline struct md_object *lu2md(const struct lu_object *o) |
| { |
| 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_object *md_object_next(const struct md_object *obj) |
| { |
| return (obj ? lu2md(lu_object_next(&obj->mo_lu)) : NULL); |
| } |
| |
| static inline struct md_device *md_obj2dev(const struct md_object *o) |
| { |
| 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); |
| } |
| |
| static inline void md_device_fini(struct md_device *md) |
| { |
| 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 */ |
| static inline int mo_permission(const struct lu_env *env, |
| struct md_object *p, |
| struct md_object *c, |
| struct md_attr *at, |
| int mask) |
| { |
| LASSERT(c->mo_ops->moo_permission); |
| return c->mo_ops->moo_permission(env, p, c, at, mask); |
| } |
| |
| static inline int mo_attr_get(const struct lu_env *env, |
| struct md_object *m, |
| struct md_attr *at) |
| { |
| LASSERT(m->mo_ops->moo_attr_get); |
| return m->mo_ops->moo_attr_get(env, m, at); |
| } |
| |
| static inline int mo_readlink(const struct lu_env *env, |
| struct md_object *m, |
| struct lu_buf *buf) |
| { |
| LASSERT(m->mo_ops->moo_readlink); |
| 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) |
| { |
| LASSERT(m->mo_ops->moo_attr_set); |
| return m->mo_ops->moo_attr_set(env, m, at); |
| } |
| |
| static inline int mo_xattr_get(const struct lu_env *env, |
| struct md_object *m, |
| struct lu_buf *buf, |
| const char *name) |
| { |
| LASSERT(m->mo_ops->moo_xattr_get); |
| return m->mo_ops->moo_xattr_get(env, m, buf, name); |
| } |
| |
| static inline int mo_xattr_del(const struct lu_env *env, |
| struct md_object *m, |
| const char *name) |
| { |
| LASSERT(m->mo_ops->moo_xattr_del); |
| 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) |
| { |
| LASSERT(m->mo_ops->moo_xattr_set); |
| return m->mo_ops->moo_xattr_set(env, m, buf, name, flags); |
| } |
| |
| static inline int mo_xattr_list(const struct lu_env *env, |
| struct md_object *m, |
| struct lu_buf *buf) |
| { |
| LASSERT(m->mo_ops->moo_xattr_list); |
| 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) |
| { |
| LASSERT(m->mo_ops->moo_open); |
| return m->mo_ops->moo_open(env, m, flags); |
| } |
| |
| static inline int mo_close(const struct lu_env *env, |
| struct md_object *m, |
| struct md_attr *ma, |
| int mode) |
| { |
| LASSERT(m->mo_ops->moo_close); |
| return m->mo_ops->moo_close(env, m, ma, mode); |
| } |
| |
| static inline int mo_readpage(const struct lu_env *env, |
| struct md_object *m, |
| const struct lu_rdpg *rdpg) |
| { |
| LASSERT(m->mo_ops->moo_readpage); |
| return m->mo_ops->moo_readpage(env, m, rdpg); |
| } |
| |
| static inline int mo_object_create(const struct lu_env *env, |
| struct md_object *m, |
| const struct md_op_spec *spc, |
| struct md_attr *at) |
| { |
| LASSERT(m->mo_ops->moo_object_create); |
| return m->mo_ops->moo_object_create(env, m, spc, at); |
| } |
| |
| static inline int mo_ref_add(const struct lu_env *env, |
| struct md_object *m, |
| const struct md_attr *ma) |
| { |
| LASSERT(m->mo_ops->moo_ref_add); |
| return m->mo_ops->moo_ref_add(env, m, ma); |
| } |
| |
| static inline int mo_ref_del(const struct lu_env *env, |
| struct md_object *m, |
| struct md_attr *ma) |
| { |
| LASSERT(m->mo_ops->moo_ref_del); |
| return m->mo_ops->moo_ref_del(env, m, ma); |
| } |
| |
| static inline int mo_capa_get(const struct lu_env *env, |
| struct md_object *m, |
| struct lustre_capa *c, |
| int renewal) |
| { |
| LASSERT(m->mo_ops->moo_capa_get); |
| 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 lu_fid *f, |
| struct md_op_spec *spec) |
| { |
| LASSERT(p->mo_dir_ops->mdo_lookup); |
| return p->mo_dir_ops->mdo_lookup(env, p, lname, f, spec); |
| } |
| |
| static inline mdl_mode_t mdo_lock_mode(const struct lu_env *env, |
| struct md_object *mo, |
| mdl_mode_t lm) |
| { |
| if (mo->mo_dir_ops->mdo_lock_mode == NULL) |
| return MDL_MINMODE; |
| return mo->mo_dir_ops->mdo_lock_mode(env, mo, lm); |
| } |
| |
| static inline int mdo_create(const struct lu_env *env, |
| struct md_object *p, |
| const struct lu_name *lchild_name, |
| struct md_object *c, |
| struct md_op_spec *spc, |
| struct md_attr *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, |
| struct md_object *p, |
| struct md_object *c, |
| const struct md_op_spec *spec, |
| struct md_attr *ma) |
| { |
| LASSERT(c->mo_dir_ops->mdo_create_data); |
| return c->mo_dir_ops->mdo_create_data(env, p, c, spec, ma); |
| } |
| |
| static inline int mdo_rename(const struct lu_env *env, |
| struct md_object *sp, |
| struct md_object *tp, |
| const struct lu_fid *lf, |
| const struct lu_name *lsname, |
| struct md_object *t, |
| const struct lu_name *ltname, |
| struct md_attr *ma) |
| { |
| LASSERT(tp->mo_dir_ops->mdo_rename); |
| return tp->mo_dir_ops->mdo_rename(env, sp, tp, lf, lsname, t, ltname, |
| ma); |
| } |
| |
| static inline int mdo_is_subdir(const struct lu_env *env, |
| struct md_object *mo, |
| const struct lu_fid *fid, |
| struct lu_fid *sfid) |
| { |
| LASSERT(mo->mo_dir_ops->mdo_is_subdir); |
| return mo->mo_dir_ops->mdo_is_subdir(env, mo, fid, sfid); |
| } |
| |
| static inline int mdo_link(const struct lu_env *env, |
| struct md_object *p, |
| struct md_object *s, |
| const struct lu_name *lname, |
| struct md_attr *ma) |
| { |
| LASSERT(s->mo_dir_ops->mdo_link); |
| return s->mo_dir_ops->mdo_link(env, p, s, lname, ma); |
| } |
| |
| 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, int no_name) |
| { |
| 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, |
| struct md_object *p, |
| const struct lu_name *lname, |
| const struct lu_fid *f, |
| const struct md_attr *ma) |
| { |
| LASSERT(p->mo_dir_ops->mdo_name_insert); |
| return p->mo_dir_ops->mdo_name_insert(env, p, lname, f, ma); |
| } |
| |
| static inline int mdo_name_remove(const struct lu_env *env, |
| struct md_object *p, |
| const struct lu_name *lname, |
| const struct md_attr *ma) |
| { |
| LASSERT(p->mo_dir_ops->mdo_name_remove); |
| return p->mo_dir_ops->mdo_name_remove(env, p, lname, ma); |
| } |
| |
| static inline int mdo_rename_tgt(const struct lu_env *env, |
| struct md_object *p, |
| struct md_object *t, |
| const struct lu_fid *lf, |
| const struct lu_name *lname, |
| struct md_attr *ma) |
| { |
| if (t) { |
| LASSERT(t->mo_dir_ops->mdo_rename_tgt); |
| return t->mo_dir_ops->mdo_rename_tgt(env, p, t, lf, lname, ma); |
| } else { |
| LASSERT(p->mo_dir_ops->mdo_rename_tgt); |
| return p->mo_dir_ops->mdo_rename_tgt(env, p, t, lf, lname, ma); |
| } |
| } |
| |
| /** |
| * 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; |
| struct list_head 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); |
| |
| 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; |
| struct group_info *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 */ |