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); \
74 /* inode flags managed by mds directly */
75 #define MDS_IF_ATTRS_OLD 0x8000000 /* inode needs attrs. refreshing */
77 #define mds_inode_has_old_attrs(inode) ((inode)->i_flags & MDS_IF_ATTRS_OLD)
78 #define mds_inode_set_attrs_old(inode) \
80 (inode)->i_flags |= MDS_IF_ATTRS_OLD; \
81 CDEBUG(D_VFSTRACE, "setting attr.old flag on inode %p\n", inode);\
83 #define mds_inode_unset_attrs_old(inode) \
85 (inode)->i_flags &= ~(MDS_IF_ATTRS_OLD); \
86 CDEBUG(D_VFSTRACE, "removing attrs.old flag from inode %p\n", inode);\
90 #endif /* __KERNEL__ */
93 int enqueue_ordered_locks(struct obd_device *obd, struct ldlm_res_id *p1_res_id,
94 struct lustre_handle *p1_lockh, int p1_lock_mode,
95 ldlm_policy_data_t *p1_policy,
96 struct ldlm_res_id *p2_res_id,
97 struct lustre_handle *p2_lockh, int p2_lock_mode,
98 ldlm_policy_data_t *p2_policy);
100 int mds_finish_transno(struct mds_obd *mds, struct inode *inode, void *handle,
101 struct ptlrpc_request *req, int rc, __u32 op_data);
102 void mds_reconstruct_generic(struct ptlrpc_request *req);
103 void mds_req_from_mcd(struct ptlrpc_request *req, struct mds_client_data *mcd);
104 int mds_get_parent_child_locked(struct obd_device *obd, struct mds_obd *mds,
105 struct lustre_id *id,
106 struct lustre_handle *parent_lockh,
107 struct dentry **dparentp, int parent_mode,
108 __u64 parent_lockpart, int *update_mode,
109 char *name, int namelen,
110 struct lustre_handle *child_lockh,
111 struct dentry **dchildp, int child_mode,
112 __u64 child_lockpart);
113 int mds_lock_new_child(struct obd_device *obd, struct inode *inode,
114 struct lustre_handle *child_lockh);
117 void groups_from_buffer(struct group_info *ginfo, __u32 *gids);
118 int mds_update_unpack(struct ptlrpc_request *, int offset,
119 struct mds_update_record *);
120 int mds_idmap_add(struct mds_idmap_table *tbl,
121 uid_t rmt_uid, uid_t lcl_uid,
122 gid_t rmt_gid, gid_t lcl_gid);
123 int mds_idmap_del(struct mds_idmap_table *tbl,
124 uid_t rmt_uid, uid_t lcl_uid,
125 gid_t rmt_gid, gid_t lcl_gid);
126 int mds_idmap_lookup_uid(struct mds_idmap_table *tbl, int reverse, uid_t uid);
127 int mds_idmap_lookup_gid(struct mds_idmap_table *tbl, int reverse, gid_t gid);
128 struct mds_idmap_table *mds_idmap_alloc(void);
129 void mds_idmap_free(struct mds_idmap_table *tbl);
130 void mds_body_do_reverse_map(struct mds_export_data *med,
131 struct mds_body *body);
132 int mds_init_ucred(struct lvfs_ucred *ucred, struct ptlrpc_request *req,
133 struct mds_req_sec_desc *rsd);
134 void mds_exit_ucred(struct lvfs_ucred *ucred);
136 /* mds/mds_unlink_open.c */
137 int mds_cleanup_orphans(struct obd_device *obd);
139 int mds_unlink_object(struct mds_obd *mds, struct inode *inode,
140 struct lov_mds_md *lmm, int lmm_size,
141 struct llog_cookie *logcookies,
142 int log_unlink, int async);
146 int mds_log_op_unlink(struct obd_device *obd, struct inode *inode,
147 struct lov_mds_md *lmm, int lmm_size,
148 struct llog_cookie *logcookies, int cookies_size,
149 struct llog_create_locks **res);
150 int mds_llog_init(struct obd_device *obd, struct obd_llogs *,
151 struct obd_device *tgt, int count, struct llog_catid *logid);
152 int mds_llog_finish(struct obd_device *obd, struct obd_llogs *, int count);
155 int mds_dt_connect(struct obd_device *obd, char * lov_name);
156 int mds_dt_disconnect(struct obd_device *obd, int flags);
157 int mds_dt_set_info(struct obd_export *exp, obd_count keylen,
158 void *key, obd_count vallen, void *val);
159 int mds_get_lovtgts(struct obd_device *, int tgt_count, struct obd_uuid *);
160 int mds_dt_write_objids(struct obd_device *obd);
161 int mds_dt_set_growth(struct mds_obd *mds, int count);
162 int mds_dt_clear_orphans(struct mds_obd *mds, struct obd_uuid *ost_uuid);
163 int mds_post_mds_lovconf(struct obd_device *obd);
164 int mds_notify(struct obd_device *obd, struct obd_device *watched,
165 int active, void *data);
166 int mds_dt_update_config(struct obd_device *obd, int transno);
167 int mds_convert_lov_ea(struct obd_device *obd, struct inode *inode,
168 struct lov_mds_md *lmm, int lmm_size);
169 int mds_revalidate_lov_ea(struct obd_device *obd, struct inode *inode,
170 struct lustre_msg *msg, int offset);
171 void mds_dt_update_objids(struct obd_device *obd, obd_id *ids);
172 void mds_dt_save_objids(struct obd_device *obd, obd_id *ids);
176 mds_create_object(struct obd_device *obd, struct ptlrpc_request *req,
177 int offset, struct mds_update_record *rec,
178 struct dentry *dchild, void **handle,
180 int mds_destroy_object(struct obd_device *obd,
181 struct inode *inode, int async);
182 int mds_query_write_access(struct inode *inode);
183 int mds_open(struct mds_update_record *rec, int offset,
184 struct ptlrpc_request *req, struct lustre_handle *);
185 int mds_pin(struct ptlrpc_request *req, int offset);
186 int mds_mfd_close(struct ptlrpc_request *req, int offset,
187 struct obd_device *obd, struct mds_file_data *mfd,
189 int mds_close(struct ptlrpc_request *req, int offset);
190 int mds_done_writing(struct ptlrpc_request *req, int offset);
191 int mds_validate_size(struct obd_device *obd, struct inode *inode,
192 struct mds_body *body, struct iattr *iattr);
195 int mds_client_add(struct obd_device *obd, struct mds_obd *mds,
196 struct mds_export_data *med, int cl_off);
197 int mds_client_free(struct obd_export *exp, int clear_client);
198 int mds_obd_create(struct obd_export *exp, struct obdo *oa,
199 void *acl, int acl_size,
200 struct lov_stripe_md **ea, struct obd_trans_info *oti);
201 int mds_obd_destroy(struct obd_export *exp, struct obdo *oa,
202 struct lov_stripe_md *ea, struct obd_trans_info *oti);
205 int mds_getattr_size(struct obd_device *obd, struct dentry *dentry,
206 struct ptlrpc_request *req, struct mds_body *body);
207 int mds_handle(struct ptlrpc_request *req);
208 extern struct lvfs_callback_ops mds_lvfs_ops;
209 int mds_dt_clean(struct obd_device *obd);
210 int mds_postrecov(struct obd_device *obd);
211 int mds_postrecov_common(struct obd_device *obd);
212 extern struct lvfs_callback_ops mds_lvfs_ops;
214 extern int mds_iocontrol(unsigned int cmd,
215 struct obd_export *exp,
219 extern int mds_lock_mode_for_dir(struct obd_device *,
220 struct dentry *, int);
222 int mds_fs_setup_rootid(struct obd_device *obd);
223 int mds_fs_setup_virtid(struct obd_device *obd);
225 __u64 mds_alloc_fid(struct obd_device *obd);
227 int mds_set_inode_sid(struct obd_device *, struct inode *,
228 void *, struct lustre_id *, __u64 fid);
230 int mds_update_inode_sid(struct obd_device *, struct inode *,
231 void *, struct lustre_id *);
233 int mds_read_inode_sid(struct obd_device *, struct inode *,
236 int mds_update_inode_mid(struct obd_device *, struct inode *,
237 void *, struct lustre_id *);
239 int mds_read_inode_mid(struct obd_device *, struct inode *,
242 void mds_commit_last_fid_cb(struct obd_device *, __u64 fid,
243 void *data, int error);
245 void mds_commit_last_transno_cb(struct obd_device *, __u64 transno,
246 void *data, int error);
248 void mds_set_last_fid(struct obd_device *obd, __u64 fid);
251 int mds_get_md(struct obd_device *, struct inode *, void *md,
252 int *size, int lock, int mea);
254 int mds_pack_md(struct obd_device *, struct lustre_msg *, int offset,
255 struct mds_body *, struct inode *, int lock, int mea);
256 int mds_pack_link(struct dentry *dentry, struct ptlrpc_request *req,
257 struct mds_body *repbody, int reply_off);
258 int mds_pack_xattr(struct dentry *dentry, struct ptlrpc_request *req,
259 struct mds_body *repbody, int req_off, int reply_off);
260 int mds_pack_xattr_list(struct dentry *dentry, struct ptlrpc_request *req,
261 struct mds_body *repbody, int reply_off);
262 int mds_pack_acl(struct ptlrpc_request *req, int reply_off,
263 struct mds_body *body, struct inode *inode);
264 int mds_pack_inode2id(struct obd_device *, struct lustre_id *,
265 struct inode *, int);
267 void mds_pack_inode2body(struct obd_device *, struct mds_body *,
268 struct inode *, int);
270 void mds_pack_dentry2id(struct obd_device *, struct lustre_id *,
271 struct dentry *, int);
273 void mds_pack_dentry2body(struct obd_device *, struct mds_body *b,
274 struct dentry *, int);
278 int mds_md_postsetup(struct obd_device *obd);
279 int mds_md_connect(struct obd_device *obd, char * lov_name);
280 int mds_md_disconnect(struct obd_device *obd, int flags);
281 int mds_try_to_split_dir(struct obd_device *, struct dentry *, struct mea **,
283 int mds_md_get_attr(struct obd_device *, struct inode *, struct mea **, int *);
284 int mds_choose_mdsnum(struct obd_device *, const char *, int, int, struct ptlrpc_peer *, struct inode *);
285 int mds_md_postsetup(struct obd_device *);
286 int mds_splitting_expected(struct obd_device *, struct dentry *);
287 int mds_lock_slave_objs(struct obd_device *, struct dentry *,
288 struct lustre_handle **);
289 int mds_unlink_slave_objs(struct obd_device *, struct dentry *);
290 void mds_unlock_slave_objs(struct obd_device *, struct dentry *,
291 struct lustre_handle *);
292 int mds_lock_and_check_slave(int, struct ptlrpc_request *, struct lustre_handle *);
293 int mds_convert_mea_ea(struct obd_device *, struct inode *, struct lov_mds_md *, int);
294 int mds_is_dir_empty(struct obd_device *, struct dentry *);
295 int mds_md_reconnect(struct obd_device *obd);
298 struct upcall_cache *__mds_get_global_lsd_cache(void);
299 int mds_init_lsd_cache(void);
300 void mds_cleanup_lsd_cache(void);
301 struct lustre_sec_desc * mds_get_lsd(__u32 uid);
302 void mds_put_lsd(struct lustre_sec_desc *lsd);
303 void mds_flush_lsd(__u32 id);
306 struct upcall_cache *__mds_get_global_rmtacl_upcall_cache(void);
307 int mds_init_rmtacl_upcall_cache(void);
308 void mds_cleanup_rmtacl_upcall_cache(void);
309 void mds_do_remote_acl_upcall(struct rmtacl_upcall_desc *desc);
311 #endif /* _MDS_INTERNAL_H */