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>
9 #include <linux/lustre_audit.h>
11 #define MDS_SERVICE_WATCHDOG_TIMEOUT 30000
13 #define MAX_ATIME_DIFF 60
15 struct mds_filter_data {
19 #define MDS_FILTERDATA(inode) ((struct mds_filter_data *)LUSTRE_FILTERDATA(inode))
20 #define DENTRY_VALID(dentry) \
21 ((dentry)->d_inode || ((dentry)->d_flags & DCACHE_CROSS_REF))
23 #define MDS_NO_SPLIT_EXPECTED 0
24 #define MDS_EXPECT_SPLIT 1
25 #define MDS_NO_SPLITTABLE 2
27 /* 1048576 should be enough for one client pool */
28 #define MDS_FIDEXT_SIZE (1 << 20)
30 static inline struct mds_obd *mds_req2mds(struct ptlrpc_request *req)
32 return &req->rq_export->exp_obd->u.mds;
34 static inline struct obd_device *req2obd(struct ptlrpc_request *req)
36 return req->rq_export->exp_obd;
40 /* Open counts for files. No longer atomic, must hold inode->i_sem */
41 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
42 # define mds_inode_oatomic(inode) ((inode)->i_cindex)
44 # define mds_inode_oatomic(inode) ((inode)->i_attr_flags)
47 static inline int mds_orphan_open_count(struct inode *inode)
49 LASSERT_MDS_ORPHAN_READ_LOCKED(inode);
50 return mds_inode_oatomic(inode);
53 static inline int mds_orphan_open_inc(struct inode *inode)
55 LASSERT_MDS_ORPHAN_WRITE_LOCKED(inode);
56 return ++mds_inode_oatomic(inode);
59 static inline int mds_orphan_open_dec_test(struct inode *inode)
61 LASSERT_MDS_ORPHAN_WRITE_LOCKED(inode);
62 return --mds_inode_oatomic(inode) == 0;
65 #define mds_inode_is_orphan(inode) ((inode)->i_flags & 0x4000000)
66 #define mds_inode_set_orphan(inode) \
68 (inode)->i_flags |= 0x4000000; \
69 CDEBUG(D_VFSTRACE, "setting orphan flag on inode %p\n", inode); \
71 #define mds_inode_unset_orphan(inode) \
73 (inode)->i_flags &= ~(0x4000000); \
74 CDEBUG(D_VFSTRACE, "removing orphan flag from inode %p\n", inode); \
78 /* inode flags managed by mds directly */
79 #define MDS_IF_ATTRS_OLD 0x8000000 /* inode needs attrs. refreshing */
81 #define mds_inode_has_old_attrs(inode) ((inode)->i_flags & MDS_IF_ATTRS_OLD)
82 #define mds_inode_set_attrs_old(inode) \
84 (inode)->i_flags |= MDS_IF_ATTRS_OLD; \
85 CDEBUG(D_VFSTRACE, "setting attr.old flag on inode %p\n", inode);\
87 #define mds_inode_unset_attrs_old(inode) \
89 (inode)->i_flags &= ~(MDS_IF_ATTRS_OLD); \
90 CDEBUG(D_VFSTRACE, "removing attrs.old flag from inode %p\n", inode);\
94 #endif /* __KERNEL__ */
97 int enqueue_ordered_locks(struct obd_device *obd, struct ldlm_res_id *p1_res_id,
98 struct lustre_handle *p1_lockh, int p1_lock_mode,
99 ldlm_policy_data_t *p1_policy,
100 struct ldlm_res_id *p2_res_id,
101 struct lustre_handle *p2_lockh, int p2_lock_mode,
102 ldlm_policy_data_t *p2_policy);
104 int mds_finish_transno(struct mds_obd *mds, struct inode *inode, void *handle,
105 struct ptlrpc_request *req, int rc, __u32 op_data);
106 void mds_reconstruct_generic(struct ptlrpc_request *req);
107 void mds_req_from_mcd(struct ptlrpc_request *req, struct mds_client_data *mcd);
108 int mds_get_parent_child_locked(struct obd_device *obd, struct mds_obd *mds,
109 struct lustre_id *id,
110 struct lustre_handle *parent_lockh,
111 struct dentry **dparentp, int parent_mode,
112 __u64 parent_lockpart, int *update_mode,
113 char *name, int namelen,
114 struct lustre_handle *child_lockh,
115 struct dentry **dchildp, int child_mode,
116 __u64 child_lockpart);
117 int mds_lock_new_child(struct obd_device *obd, struct inode *inode,
118 struct lustre_handle *child_lockh);
121 void groups_from_buffer(struct group_info *ginfo, __u32 *gids);
122 int mds_update_unpack(struct ptlrpc_request *, int offset,
123 struct mds_update_record *);
124 int mds_idmap_add(struct mds_idmap_table *tbl,
125 uid_t rmt_uid, uid_t lcl_uid,
126 gid_t rmt_gid, gid_t lcl_gid);
127 int mds_idmap_del(struct mds_idmap_table *tbl,
128 uid_t rmt_uid, uid_t lcl_uid,
129 gid_t rmt_gid, gid_t lcl_gid);
130 int mds_idmap_lookup_uid(struct mds_idmap_table *tbl, int reverse, uid_t uid);
131 int mds_idmap_lookup_gid(struct mds_idmap_table *tbl, int reverse, gid_t gid);
132 struct mds_idmap_table *mds_idmap_alloc(void);
133 void mds_idmap_free(struct mds_idmap_table *tbl);
134 void mds_body_do_reverse_map(struct mds_export_data *med,
135 struct mds_body *body);
136 int mds_remote_perm_do_reverse_map(struct mds_export_data *med,
137 struct mds_remote_perm *perm);
138 int mds_init_ucred(struct lvfs_ucred *ucred, struct ptlrpc_request *req,
139 struct mds_req_sec_desc *rsd);
140 void mds_exit_ucred(struct lvfs_ucred *ucred);
142 int mds_set_gskey(struct obd_device *obd, void *handle,
143 struct inode *inode, void *key, int key_len, int valid);
144 int mds_set_crypto_type(struct obd_device *obd, void *val, __u32 vallen);
146 int mds_pack_gskey(struct obd_device *obd, struct lustre_msg *repmsg,
147 int *offset, struct mds_body *body, struct inode *inode);
148 /* mds/mds_unlink_open.c */
149 int mds_cleanup_orphans(struct obd_device *obd);
151 int mds_unlink_object(struct mds_obd *mds, struct inode *inode,
152 struct lov_mds_md *lmm, int lmm_size,
153 struct llog_cookie *logcookies,
154 int log_unlink, int async);
158 int mds_log_op_unlink(struct obd_device *obd, struct inode *inode,
159 struct lov_mds_md *lmm, int lmm_size,
160 struct llog_cookie *logcookies, int cookies_size,
161 struct llog_create_locks **res);
162 int mds_llog_init(struct obd_device *obd, struct obd_llogs *,
163 struct obd_device *tgt, int count, struct llog_catid *logid);
164 int mds_llog_finish(struct obd_device *obd, struct obd_llogs *, int count);
167 int mds_dt_connect(struct obd_device *obd, char * lov_name);
168 int mds_dt_disconnect(struct obd_device *obd, int flags);
169 int mds_dt_set_info(struct obd_export *exp, obd_count keylen,
170 void *key, obd_count vallen, void *val);
171 int mds_get_lovtgts(struct obd_device *, int tgt_count, struct obd_uuid *);
172 int mds_dt_write_objids(struct obd_device *obd);
173 int mds_dt_set_growth(struct mds_obd *mds, int count);
174 int mds_dt_clear_orphans(struct mds_obd *mds, struct obd_uuid *ost_uuid);
175 int mds_post_mds_lovconf(struct obd_device *obd);
176 int mds_notify(struct obd_device *obd, struct obd_device *watched,
177 int active, void *data);
178 int mds_dt_update_config(struct obd_device *obd, int transno);
179 int mds_convert_lov_ea(struct obd_device *obd, struct inode *inode,
180 struct lov_mds_md *lmm, int lmm_size);
181 int mds_revalidate_lov_ea(struct obd_device *obd, struct inode *inode,
182 struct lustre_msg *msg, int offset);
183 void mds_dt_update_objids(struct obd_device *obd, obd_id *ids);
184 void mds_dt_save_objids(struct obd_device *obd, obd_id *ids);
187 int mds_create_object(struct obd_device *obd, struct ptlrpc_request *req,
188 int offset, struct mds_update_record *rec,
189 struct dentry *dchild, void **handle,
191 int mds_destroy_object(struct obd_device *obd,
192 struct inode *inode, int async);
193 int mds_query_write_access(struct inode *inode);
194 int mds_open(struct mds_update_record *rec, int offset,
195 struct ptlrpc_request *req, struct lustre_handle *);
196 int mds_pin(struct ptlrpc_request *req, int offset);
197 int mds_mfd_close(struct ptlrpc_request *req, int offset,
198 struct obd_device *obd, struct mds_file_data *mfd,
200 int mds_close(struct ptlrpc_request *req, int offset);
201 int mds_done_writing(struct ptlrpc_request *req, int offset);
202 struct mds_file_data *mds_handle2mfd(struct lustre_handle *handle);
203 int mds_validate_size(struct obd_device *obd, struct inode *inode,
204 struct mds_body *body, struct iattr *iattr);
205 int accmode(int flags);
208 int mds_fidmap_init(struct obd_device *obd, int size);
209 int mds_fidmap_cleanup(struct obd_device *obd);
211 struct fidmap_entry *
212 mds_fidmap_find(struct obd_device *obd, __u64 fid);
215 mds_fidmap_lookup(struct obd_device *obd,
216 struct lustre_id *id);
218 void mds_fidmap_insert(struct obd_device *obd,
219 struct fidmap_entry *entry);
221 void mds_fidmap_remove(struct obd_device *obd,
222 struct fidmap_entry *entry);
224 int mds_fidmap_add(struct obd_device *obd,
225 struct lustre_id *id);
227 void mds_fidmap_del(struct obd_device *obd,
228 struct lustre_id *id);
230 int mds_client_add(struct obd_device *obd, struct mds_obd *mds,
231 struct mds_export_data *med, int cl_off);
232 int mds_client_free(struct obd_export *exp, int clear_client);
233 int mds_obd_create(struct obd_export *exp, struct obdo *oa,
234 void *acl, int acl_size,
235 struct lov_stripe_md **ea, struct obd_trans_info *oti);
236 int mds_obd_destroy(struct obd_export *exp, struct obdo *oa,
237 struct lov_stripe_md *ea, struct obd_trans_info *oti);
240 int mds_getattr_size(struct obd_device *obd, struct dentry *dentry,
241 struct ptlrpc_request *req, struct mds_body *body);
242 int mds_handle(struct ptlrpc_request *req);
243 extern struct lvfs_callback_ops mds_lvfs_ops;
244 int mds_dt_clean(struct obd_device *obd);
245 int mds_postrecov(struct obd_device *obd);
246 int mds_postrecov_common(struct obd_device *obd);
247 extern struct lvfs_callback_ops mds_lvfs_ops;
249 extern int mds_iocontrol(unsigned int cmd,
250 struct obd_export *exp,
254 extern int mds_lock_mode_for_dir(struct obd_device *,
255 struct dentry *, int);
257 int mds_fs_setup_rootid(struct obd_device *obd);
258 int mds_fs_setup_virtid(struct obd_device *obd);
260 __u64 mds_alloc_fid(struct obd_device *obd);
262 void mds_inode2id(struct obd_device *obd, struct lustre_id *id,
263 struct inode *inode, __u64 fid);
264 int mds_update_inode_ids(struct obd_device *, struct inode *,
265 void *, struct lustre_id *, struct lustre_id *);
266 int mds_read_inode_sid(struct obd_device *, struct inode *,
269 int mds_read_inode_pid(struct obd_device *, struct inode *,
272 void mds_commit_last_fid_cb(struct obd_device *, __u64 fid,
273 void *data, int error);
275 void mds_commit_last_transno_cb(struct obd_device *, __u64 transno,
276 void *data, int error);
278 void mds_set_last_fid(struct obd_device *obd, __u64 fid);
281 int mds_get_md(struct obd_device *, struct inode *, void *md,
282 int *size, int lock, int mea);
284 int mds_pack_md(struct obd_device *, struct lustre_msg *, int offset,
285 struct mds_body *, struct inode *, int lock, int mea);
286 int mds_pack_link(struct dentry *dentry, struct ptlrpc_request *req,
287 struct mds_body *repbody, int reply_off);
288 int mds_pack_xattr(struct dentry *dentry, struct ptlrpc_request *req,
289 struct mds_body *repbody, int req_off, int reply_off);
290 int mds_pack_xattr_list(struct dentry *dentry, struct ptlrpc_request *req,
291 struct mds_body *repbody, int reply_off);
292 int mds_pack_acl(struct ptlrpc_request *req, int reply_off,
293 struct mds_body *body, struct inode *inode);
295 int mds_pack_inode2id(struct obd_device *, struct lustre_id *,
296 struct inode *, int);
298 void mds_pack_inode2body(struct obd_device *, struct mds_body *,
299 struct inode *, int);
301 void mds_pack_dentry2id(struct obd_device *, struct lustre_id *,
302 struct dentry *, int);
304 void mds_pack_dentry2body(struct obd_device *, struct mds_body *b,
305 struct dentry *, int);
310 int mds_md_postsetup(struct obd_device *obd);
311 int mds_md_connect(struct obd_device *obd, char * lov_name);
312 int mds_md_disconnect(struct obd_device *obd, int flags);
313 int mds_try_to_split_dir(struct obd_device *, struct dentry *, struct mea **,
315 int mds_md_get_attr(struct obd_device *, struct inode *, struct mea **, int *);
316 int mds_choose_mdsnum(struct obd_device *, const char *, int, int,
317 struct ptlrpc_peer *, struct inode *, int);
318 int mds_md_postsetup(struct obd_device *);
319 int mds_splitting_expected(struct obd_device *, struct dentry *);
320 int mds_lock_slave_objs(struct obd_device *, struct dentry *,
321 struct lustre_handle **);
322 int mds_unlink_slave_objs(struct obd_device *, struct dentry *);
323 void mds_unlock_slave_objs(struct obd_device *, struct dentry *,
324 struct lustre_handle *);
325 int mds_lock_and_check_slave(int, struct ptlrpc_request *, struct lustre_handle *);
326 int mds_convert_mea_ea(struct obd_device *, struct inode *, struct lov_mds_md *, int);
327 int mds_is_dir_empty(struct obd_device *, struct dentry *);
328 int mds_md_reconnect(struct obd_device *obd);
331 struct upcall_cache *__mds_get_global_lsd_cache(void);
332 int mds_init_lsd_cache(void);
333 void mds_cleanup_lsd_cache(void);
334 struct lustre_sec_desc * mds_get_lsd(__u32 uid);
335 void mds_put_lsd(struct lustre_sec_desc *lsd);
336 void mds_flush_lsd(__u32 id);
338 /* mds_audit_path.c */
339 int mds_parse_id(struct ptlrpc_request *req);
342 int mds_set_audit(struct obd_device * obd, void * val);
343 int mds_pack_audit(struct obd_device *, struct inode *, struct mds_body *);
344 int mds_audit_auth(struct ptlrpc_request *, struct lvfs_ucred *,
345 audit_op, struct lustre_id *, char *, int);
346 int mds_audit_stat(struct ptlrpc_request *, struct lustre_id *,
347 struct inode *, char*, int, int);
348 int mds_audit_open(struct ptlrpc_request *, struct lustre_id *,
349 struct inode *, char*, int, int);
352 struct upcall_cache *__mds_get_global_rmtacl_upcall_cache(void);
353 int mds_init_rmtacl_upcall_cache(void);
354 void mds_cleanup_rmtacl_upcall_cache(void);
355 void mds_do_remote_acl_upcall(struct rmtacl_upcall_desc *desc);
358 extern struct timer_list mds_eck_timer;
360 int mds_read_capa_key(struct obd_device *obd, struct file *file);
361 void mds_capa_keys_cleanup(struct obd_device *obd);
362 void mds_capa_key_timer_callback(unsigned long data);
363 int mds_capa_key_start_thread(void);
364 void mds_capa_key_stop_thread(void);
365 int mds_pack_capa(struct obd_device *obd, struct mds_body *req_body,
366 struct lustre_capa *req_capa, struct lustre_msg *repmsg,
367 int *offset, struct mds_body *body);
369 #endif /* _MDS_INTERNAL_H */