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 MDS_SERVICE_WATCHDOG_TIMEOUT 30000
12 #define MAX_ATIME_DIFF 60
14 struct mds_filter_data {
18 #define MDS_FILTERDATA(inode) ((struct mds_filter_data *)LUSTRE_FILTERDATA(inode))
19 #define DENTRY_VALID(dentry) \
20 ((dentry)->d_inode || ((dentry)->d_flags & DCACHE_CROSS_REF))
22 #define MDS_NO_SPLIT_EXPECTED 0
23 #define MDS_EXPECT_SPLIT 1
24 #define MDS_NO_SPLITTABLE 2
26 static inline struct mds_obd *mds_req2mds(struct ptlrpc_request *req)
28 return &req->rq_export->exp_obd->u.mds;
30 static inline struct obd_device *req2obd(struct ptlrpc_request *req)
32 return req->rq_export->exp_obd;
36 /* Open counts for files. No longer atomic, must hold inode->i_sem */
37 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
38 # define mds_inode_oatomic(inode) ((inode)->i_cindex)
40 # define mds_inode_oatomic(inode) ((inode)->i_attr_flags)
43 static inline int mds_orphan_open_count(struct inode *inode)
45 LASSERT_MDS_ORPHAN_READ_LOCKED(inode);
46 return mds_inode_oatomic(inode);
49 static inline int mds_orphan_open_inc(struct inode *inode)
51 LASSERT_MDS_ORPHAN_WRITE_LOCKED(inode);
52 return ++mds_inode_oatomic(inode);
55 static inline int mds_orphan_open_dec_test(struct inode *inode)
57 LASSERT_MDS_ORPHAN_WRITE_LOCKED(inode);
58 return --mds_inode_oatomic(inode) == 0;
61 #define mds_inode_is_orphan(inode) ((inode)->i_flags & 0x4000000)
62 #define mds_inode_set_orphan(inode) \
64 (inode)->i_flags |= 0x4000000; \
65 CDEBUG(D_VFSTRACE, "setting orphan flag on inode %p\n", inode); \
67 #define mds_inode_unset_orphan(inode) \
69 (inode)->i_flags &= ~(0x4000000); \
70 CDEBUG(D_VFSTRACE, "removing orphan flag from inode %p\n", inode); \
72 #endif /* __KERNEL__ */
75 int enqueue_ordered_locks(struct obd_device *obd, struct ldlm_res_id *p1_res_id,
76 struct lustre_handle *p1_lockh, int p1_lock_mode,
77 ldlm_policy_data_t *p1_policy,
78 struct ldlm_res_id *p2_res_id,
79 struct lustre_handle *p2_lockh, int p2_lock_mode,
80 ldlm_policy_data_t *p2_policy);
82 int mds_finish_transno(struct mds_obd *mds, struct inode *inode, void *handle,
83 struct ptlrpc_request *req, int rc, __u32 op_data);
84 void mds_reconstruct_generic(struct ptlrpc_request *req);
85 void mds_req_from_mcd(struct ptlrpc_request *req, struct mds_client_data *mcd);
86 int mds_get_parent_child_locked(struct obd_device *obd, struct mds_obd *mds,
88 struct lustre_handle *parent_lockh,
89 struct dentry **dparentp, int parent_mode,
90 __u64 parent_lockpart, int *update_mode,
91 char *name, int namelen,
92 struct lustre_handle *child_lockh,
93 struct dentry **dchildp, int child_mode,
94 __u64 child_lockpart);
95 int mds_lock_new_child(struct obd_device *obd, struct inode *inode,
96 struct lustre_handle *child_lockh);
99 void groups_from_buffer(struct group_info *ginfo, __u32 *gids);
100 int mds_update_unpack(struct ptlrpc_request *, int offset,
101 struct mds_update_record *);
102 int mds_idmap_add(struct mds_idmap_table *tbl,
103 uid_t rmt_uid, uid_t lcl_uid,
104 gid_t rmt_gid, gid_t lcl_gid);
105 int mds_idmap_del(struct mds_idmap_table *tbl,
106 uid_t rmt_uid, uid_t lcl_uid,
107 gid_t rmt_gid, gid_t lcl_gid);
108 int mds_idmap_lookup_uid(struct mds_idmap_table *tbl, int reverse, uid_t uid);
109 int mds_idmap_lookup_gid(struct mds_idmap_table *tbl, int reverse, gid_t gid);
110 struct mds_idmap_table *mds_idmap_alloc(void);
111 void mds_idmap_free(struct mds_idmap_table *tbl);
112 void mds_body_do_reverse_map(struct mds_export_data *med,
113 struct mds_body *body);
114 int mds_init_ucred(struct lvfs_ucred *ucred, struct ptlrpc_request *req,
115 struct mds_req_sec_desc *rsd);
116 void mds_exit_ucred(struct lvfs_ucred *ucred);
118 /* mds/mds_unlink_open.c */
119 int mds_cleanup_orphans(struct obd_device *obd);
121 int mds_unlink_object(struct mds_obd *mds, struct inode *inode,
122 struct lov_mds_md *lmm, int lmm_size,
123 struct llog_cookie *logcookies,
124 int log_unlink, int async);
128 int mds_log_op_unlink(struct obd_device *obd, struct inode *inode,
129 struct lov_mds_md *lmm, int lmm_size,
130 struct llog_cookie *logcookies, int cookies_size,
131 struct llog_create_locks **res);
132 int mds_llog_init(struct obd_device *obd, struct obd_llogs *,
133 struct obd_device *tgt, int count, struct llog_catid *logid);
134 int mds_llog_finish(struct obd_device *obd, struct obd_llogs *, int count);
137 int mds_dt_connect(struct obd_device *obd, char * lov_name);
138 int mds_dt_disconnect(struct obd_device *obd, int flags);
139 int mds_dt_set_info(struct obd_export *exp, obd_count keylen,
140 void *key, obd_count vallen, void *val);
141 int mds_get_lovtgts(struct obd_device *, int tgt_count, struct obd_uuid *);
142 int mds_dt_write_objids(struct obd_device *obd);
143 int mds_dt_set_growth(struct mds_obd *mds, int count);
144 int mds_dt_clear_orphans(struct mds_obd *mds, struct obd_uuid *ost_uuid);
145 int mds_post_mds_lovconf(struct obd_device *obd);
146 int mds_notify(struct obd_device *obd, struct obd_device *watched,
147 int active, void *data);
148 int mds_dt_update_config(struct obd_device *obd, int transno);
149 int mds_convert_lov_ea(struct obd_device *obd, struct inode *inode,
150 struct lov_mds_md *lmm, int lmm_size);
151 int mds_revalidate_lov_ea(struct obd_device *obd, struct inode *inode,
152 struct lustre_msg *msg, int offset);
153 void mds_dt_update_objids(struct obd_device *obd, obd_id *ids);
154 void mds_dt_save_objids(struct obd_device *obd, obd_id *ids);
158 mds_create_object(struct obd_device *obd, struct ptlrpc_request *req,
159 int offset, struct mds_update_record *rec,
160 struct dentry *dchild, void **handle,
162 int mds_destroy_object(struct obd_device *obd,
163 struct inode *inode, int async);
164 int mds_query_write_access(struct inode *inode);
165 int mds_open(struct mds_update_record *rec, int offset,
166 struct ptlrpc_request *req, struct lustre_handle *);
167 int mds_pin(struct ptlrpc_request *req, int offset);
168 int mds_mfd_close(struct ptlrpc_request *req, int offset,
169 struct obd_device *obd, struct mds_file_data *mfd,
171 int mds_close(struct ptlrpc_request *req, int offset);
172 int mds_done_writing(struct ptlrpc_request *req, int offset);
176 int mds_client_add(struct obd_device *obd, struct mds_obd *mds,
177 struct mds_export_data *med, int cl_off);
178 int mds_client_free(struct obd_export *exp, int clear_client);
179 int mds_obd_create(struct obd_export *exp, struct obdo *oa,
180 void *acl, int acl_size,
181 struct lov_stripe_md **ea, struct obd_trans_info *oti);
182 int mds_obd_destroy(struct obd_export *exp, struct obdo *oa,
183 struct lov_stripe_md *ea, struct obd_trans_info *oti);
186 int mds_getattr_size(struct obd_device *obd, struct dentry *dentry,
187 struct ptlrpc_request *req, struct mds_body *body);
188 int mds_handle(struct ptlrpc_request *req);
189 extern struct lvfs_callback_ops mds_lvfs_ops;
190 int mds_dt_clean(struct obd_device *obd);
191 int mds_postrecov(struct obd_device *obd);
192 int mds_postrecov_common(struct obd_device *obd);
193 extern struct lvfs_callback_ops mds_lvfs_ops;
195 extern int mds_iocontrol(unsigned int cmd,
196 struct obd_export *exp,
200 extern int mds_lock_mode_for_dir(struct obd_device *,
201 struct dentry *, int);
203 int mds_fs_setup_rootid(struct obd_device *obd);
204 int mds_fs_setup_virtid(struct obd_device *obd);
206 __u64 mds_alloc_fid(struct obd_device *obd);
208 int mds_set_inode_sid(struct obd_device *, struct inode *,
209 void *, struct lustre_id *, __u64 fid);
211 int mds_update_inode_sid(struct obd_device *, struct inode *,
212 void *, struct lustre_id *);
214 int mds_read_inode_sid(struct obd_device *, struct inode *,
217 int mds_update_inode_mid(struct obd_device *, struct inode *,
218 void *, struct lustre_id *);
220 int mds_read_inode_mid(struct obd_device *, struct inode *,
223 void mds_commit_last_fid_cb(struct obd_device *, __u64 fid,
224 void *data, int error);
226 void mds_commit_last_transno_cb(struct obd_device *, __u64 transno,
227 void *data, int error);
229 void mds_set_last_fid(struct obd_device *obd, __u64 fid);
232 int mds_get_md(struct obd_device *, struct inode *, void *md,
233 int *size, int lock, int mea);
235 int mds_pack_md(struct obd_device *, struct lustre_msg *, int offset,
236 struct mds_body *, struct inode *, int lock, int mea);
237 int mds_pack_link(struct dentry *dentry, struct ptlrpc_request *req,
238 struct mds_body *repbody, int reply_off);
239 int mds_pack_ea(struct dentry *dentry, struct ptlrpc_request *req,
240 struct mds_body *repbody, int req_off, int reply_off);
241 int mds_pack_ealist(struct dentry *dentry, struct ptlrpc_request *req,
242 struct mds_body *repbody, int reply_off);
243 int mds_pack_acl(struct ptlrpc_request *req, int reply_off,
244 struct mds_body *body, struct inode *inode);
245 int mds_pack_inode2id(struct obd_device *, struct lustre_id *,
246 struct inode *, int);
248 void mds_pack_inode2body(struct obd_device *, struct mds_body *,
249 struct inode *, int);
251 void mds_pack_dentry2id(struct obd_device *, struct lustre_id *,
252 struct dentry *, int);
254 void mds_pack_dentry2body(struct obd_device *, struct mds_body *b,
255 struct dentry *, int);
259 int mds_md_postsetup(struct obd_device *obd);
260 int mds_md_connect(struct obd_device *obd, char * lov_name);
261 int mds_md_disconnect(struct obd_device *obd, int flags);
262 int mds_try_to_split_dir(struct obd_device *, struct dentry *, struct mea **,
264 int mds_md_get_attr(struct obd_device *, struct inode *, struct mea **, int *);
265 int mds_choose_mdsnum(struct obd_device *, const char *, int, int, struct ptlrpc_peer *, struct inode *);
266 int mds_md_postsetup(struct obd_device *);
267 int mds_splitting_expected(struct obd_device *, struct dentry *);
268 int mds_lock_slave_objs(struct obd_device *, struct dentry *,
269 struct lustre_handle **);
270 int mds_unlink_slave_objs(struct obd_device *, struct dentry *);
271 void mds_unlock_slave_objs(struct obd_device *, struct dentry *,
272 struct lustre_handle *);
273 int mds_lock_and_check_slave(int, struct ptlrpc_request *, struct lustre_handle *);
274 int mds_convert_mea_ea(struct obd_device *, struct inode *, struct lov_mds_md *, int);
275 int mds_is_dir_empty(struct obd_device *, struct dentry *);
276 int mds_md_reconnect(struct obd_device *obd);
279 struct upcall_cache *__mds_get_global_lsd_cache(void);
280 int mds_init_lsd_cache(void);
281 void mds_cleanup_lsd_cache(void);
282 struct lustre_sec_desc * mds_get_lsd(__u32 uid);
283 void mds_put_lsd(struct lustre_sec_desc *lsd);
284 void mds_flush_lsd(__u32 id);
286 #endif /* _MDS_INTERNAL_H */