1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
5 #ifndef _MDS_INTERNAL_H
6 #define _MDS_INTERNAL_H
8 #include <linux/lustre_mds.h>
10 #define MAX_ATIME_DIFF 60
12 struct mds_filter_data {
16 #define MDS_FILTERDATA(inode) ((struct mds_filter_data *)(inode)->i_filterdata)
17 #define DENTRY_VALID(dentry) \
18 ((dentry)->d_inode || ((dentry)->d_flags & DCACHE_CROSS_REF))
20 #define MDS_NO_SPLIT_EXPECTED 0
21 #define MDS_EXPECT_SPLIT 1
22 #define MDS_NO_SPLITTABLE 2
24 static inline struct mds_obd *mds_req2mds(struct ptlrpc_request *req)
26 return &req->rq_export->exp_obd->u.mds;
28 static inline struct obd_device *req2obd(struct ptlrpc_request *req)
30 return req->rq_export->exp_obd;
34 /* Open counts for files. No longer atomic, must hold inode->i_sem */
35 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
36 # define mds_inode_oatomic(inode) ((inode)->i_cindex)
38 # define mds_inode_oatomic(inode) ((inode)->i_attr_flags)
41 static inline int mds_orphan_open_count(struct inode *inode)
43 LASSERT_MDS_ORPHAN_READ_LOCKED(inode);
44 return mds_inode_oatomic(inode);
47 static inline int mds_orphan_open_inc(struct inode *inode)
49 LASSERT_MDS_ORPHAN_WRITE_LOCKED(inode);
50 return ++mds_inode_oatomic(inode);
53 static inline int mds_orphan_open_dec_test(struct inode *inode)
55 LASSERT_MDS_ORPHAN_WRITE_LOCKED(inode);
56 return --mds_inode_oatomic(inode) == 0;
59 #define mds_inode_is_orphan(inode) ((inode)->i_flags & 0x4000000)
60 #define mds_inode_set_orphan(inode) \
62 (inode)->i_flags |= 0x4000000; \
63 CDEBUG(D_VFSTRACE, "setting orphan flag on inode %p\n", inode); \
65 #define mds_inode_unset_orphan(inode) \
67 (inode)->i_flags &= ~(0x4000000); \
68 CDEBUG(D_VFSTRACE, "removing orphan flag from inode %p\n", inode); \
70 #endif /* __KERNEL__ */
73 int enqueue_ordered_locks(struct obd_device *obd, struct ldlm_res_id *p1_res_id,
74 struct lustre_handle *p1_lockh, int p1_lock_mode,
75 ldlm_policy_data_t *p1_policy,
76 struct ldlm_res_id *p2_res_id,
77 struct lustre_handle *p2_lockh, int p2_lock_mode,
78 ldlm_policy_data_t *p2_policy);
80 int mds_finish_transno(struct mds_obd *mds, struct inode *inode, void *handle,
81 struct ptlrpc_request *req, int rc, __u32 op_data);
82 void mds_reconstruct_generic(struct ptlrpc_request *req);
83 void mds_req_from_mcd(struct ptlrpc_request *req, struct mds_client_data *mcd);
84 int mds_get_parent_child_locked(struct obd_device *obd, struct mds_obd *mds,
86 struct lustre_handle *parent_lockh,
87 struct dentry **dparentp, int parent_mode,
88 __u64 parent_lockpart, int *update_mode,
89 char *name, int namelen,
90 struct lustre_handle *child_lockh,
91 struct dentry **dchildp, int child_mode,
92 __u64 child_lockpart);
93 int mds_lock_new_child(struct obd_device *obd, struct inode *inode,
94 struct lustre_handle *child_lockh);
97 void groups_from_buffer(struct group_info *ginfo, __u32 *gids);
98 int mds_update_unpack(struct ptlrpc_request *, int offset,
99 struct mds_update_record *);
100 int mds_init_ucred(struct lvfs_ucred *ucred, struct mds_req_sec_desc *rsd);
101 void mds_exit_ucred(struct lvfs_ucred *ucred);
103 /* mds/mds_unlink_open.c */
104 int mds_cleanup_orphans(struct obd_device *obd);
108 int mds_log_op_unlink(struct obd_device *obd, struct inode *inode,
109 struct lov_mds_md *lmm, int lmm_size,
110 struct llog_cookie *logcookies, int cookies_size,
111 struct llog_create_locks **res);
112 int mds_llog_init(struct obd_device *obd, struct obd_llogs *,
113 struct obd_device *tgt, int count, struct llog_catid *logid);
114 int mds_llog_finish(struct obd_device *obd, struct obd_llogs *, int count);
117 int mds_dt_connect(struct obd_device *obd, char * lov_name);
118 int mds_dt_disconnect(struct obd_device *obd, int flags);
119 int mds_dt_set_info(struct obd_export *exp, obd_count keylen,
120 void *key, obd_count vallen, void *val);
121 int mds_get_lovtgts(struct obd_device *, int tgt_count, struct obd_uuid *);
122 int mds_dt_write_objids(struct obd_device *obd);
123 void mds_dt_update_objids(struct obd_device *obd, obd_id *ids);
124 int mds_dt_set_growth(struct mds_obd *mds, int count);
125 int mds_dt_set_nextid(struct obd_device *obd);
126 int mds_dt_clearorphans(struct mds_obd *mds, struct obd_uuid *ost_uuid);
127 int mds_post_mds_lovconf(struct obd_device *obd);
128 int mds_notify(struct obd_device *obd, struct obd_device *watched,
129 int active, void *data);
130 int mds_dt_update_config(struct obd_device *obd, int transno);
131 int mds_convert_lov_ea(struct obd_device *obd, struct inode *inode,
132 struct lov_mds_md *lmm, int lmm_size);
133 int mds_revalidate_lov_ea(struct obd_device *obd, struct inode *inode,
134 struct lustre_msg *msg, int offset);
137 int mds_query_write_access(struct inode *inode);
138 int mds_open(struct mds_update_record *rec, int offset,
139 struct ptlrpc_request *req, struct lustre_handle *);
140 int mds_pin(struct ptlrpc_request *req, int offset);
141 int mds_mfd_close(struct ptlrpc_request *req, int offset,
142 struct obd_device *obd, struct mds_file_data *mfd,
144 int mds_close(struct ptlrpc_request *req, int offset);
145 int mds_done_writing(struct ptlrpc_request *req, int offset);
149 int mds_client_add(struct obd_device *obd, struct mds_obd *mds,
150 struct mds_export_data *med, int cl_off);
151 int mds_client_free(struct obd_export *exp, int clear_client);
152 int mds_obd_create(struct obd_export *exp, struct obdo *oa,
153 struct lov_stripe_md **ea, struct obd_trans_info *oti);
154 int mds_obd_destroy(struct obd_export *exp, struct obdo *oa,
155 struct lov_stripe_md *ea, struct obd_trans_info *oti);
158 void mds_squash_root(struct mds_obd *mds, struct mds_req_sec_desc *rsd,
160 int mds_handle(struct ptlrpc_request *req);
161 extern struct lvfs_callback_ops mds_lvfs_ops;
162 int mds_dt_clean(struct obd_device *obd);
163 int mds_postrecov(struct obd_device *obd);
164 extern struct lvfs_callback_ops mds_lvfs_ops;
166 extern int mds_iocontrol(unsigned int cmd,
167 struct obd_export *exp,
171 extern int mds_lock_mode_for_dir(struct obd_device *,
172 struct dentry *, int);
174 int mds_fs_setup_rootid(struct obd_device *obd);
175 int mds_fs_setup_virtid(struct obd_device *obd);
177 __u64 mds_alloc_fid(struct obd_device *obd);
179 int mds_alloc_inode_sid(struct obd_device *, struct inode *,
180 void *, struct lustre_id *);
182 int mds_update_inode_sid(struct obd_device *, struct inode *,
183 void *, struct lustre_id *);
185 int mds_read_inode_sid(struct obd_device *, struct inode *,
188 int mds_update_inode_mid(struct obd_device *, struct inode *,
189 void *, struct lustre_id *);
191 int mds_read_inode_mid(struct obd_device *, struct inode *,
194 void mds_commit_last_fid_cb(struct obd_device *, __u64 fid,
195 void *data, int error);
197 void mds_commit_last_transno_cb(struct obd_device *, __u64 transno,
198 void *data, int error);
200 void mds_set_last_fid(struct obd_device *obd, __u64 fid);
203 int mds_get_md(struct obd_device *, struct inode *, void *md,
204 int *size, int lock);
206 int mds_pack_md(struct obd_device *, struct lustre_msg *, int offset,
207 struct mds_body *, struct inode *, int lock);
209 int mds_pack_inode2id(struct obd_device *, struct lustre_id *,
212 void mds_pack_inode2body(struct obd_device *, struct mds_body *,
215 void mds_pack_dentry2id(struct obd_device *, struct lustre_id *,
218 void mds_pack_dentry2body(struct obd_device *, struct mds_body *b,
223 int mds_md_postsetup(struct obd_device *obd);
224 int mds_md_connect(struct obd_device *obd, char * lov_name);
225 int mds_md_disconnect(struct obd_device *obd, int flags);
226 int mds_try_to_split_dir(struct obd_device *, struct dentry *, struct mea **,
228 int mds_md_get_attr(struct obd_device *, struct inode *, struct mea **, int *);
229 int mds_choose_mdsnum(struct obd_device *, const char *, int, int);
230 int mds_md_postsetup(struct obd_device *);
231 int mds_splitting_expected(struct obd_device *, struct dentry *);
232 int mds_lock_slave_objs(struct obd_device *, struct dentry *,
233 struct lustre_handle **);
234 int mds_unlink_slave_objs(struct obd_device *, struct dentry *);
235 void mds_unlock_slave_objs(struct obd_device *, struct dentry *,
236 struct lustre_handle *);
237 int mds_lock_and_check_slave(int, struct ptlrpc_request *, struct lustre_handle *);
238 int mds_convert_mea_ea(struct obd_device *, struct inode *, struct lov_mds_md *, int);
239 int mds_is_dir_empty(struct obd_device *, struct dentry *);
242 int mds_group_hash_init(void);
243 void mds_group_hash_cleanup(void);
244 void mds_group_hash_flush_idle(void);
245 int mds_allow_setgroups(void);
247 extern char mds_getgroups_upcall[PATH_MAX];
248 extern int mds_grp_hash_entry_expire;
249 extern int mds_grp_hash_acquire_expire;
251 struct mds_grp_hash *__mds_get_global_group_hash(void);
252 struct mds_grp_hash_entry * mds_get_group_entry(struct mds_obd *mds, uid_t uid);
253 void mds_put_group_entry(struct mds_obd *mds, struct mds_grp_hash_entry *entry);
254 int mds_handle_group_downcall(int err, uid_t uid, __u32 ngroups, gid_t *groups);
256 #endif /* _MDS_INTERNAL_H */