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 <lustre_disk.h>
9 #include <lustre_mds.h>
11 #define MDT_ROCOMPAT_SUPP (OBD_ROCOMPAT_LOVOBJID)
12 #define MDT_INCOMPAT_SUPP (OBD_INCOMPAT_MDT | OBD_INCOMPAT_COMMON_LR)
14 /* Data stored per client in the last_rcvd file. In le32 order. */
15 struct mds_client_data {
16 __u8 mcd_uuid[40]; /* client UUID */
17 __u64 mcd_last_transno; /* last completed transaction ID */
18 __u64 mcd_last_xid; /* xid for the last transaction */
19 __u32 mcd_last_result; /* result from last RPC */
20 __u32 mcd_last_data; /* per-op data (disposition for open &c.) */
21 __u8 mcd_padding[LR_CLIENT_SIZE - 64];
24 #define MDS_SERVICE_WATCHDOG_TIMEOUT (obd_timeout * 1000)
26 #define MAX_ATIME_DIFF 60
28 struct mds_filter_data {
32 #define MDS_FILTERDATA(inode) ((struct mds_filter_data *)(inode)->i_filterdata)
34 static inline struct mds_obd *mds_req2mds(struct ptlrpc_request *req)
36 return &req->rq_export->exp_obd->u.mds;
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 #ifdef HAVE_I_ALLOC_SEM
48 #define MDS_UP_READ_ORPHAN_SEM(i) UP_READ_I_ALLOC_SEM(i)
49 #define MDS_DOWN_READ_ORPHAN_SEM(i) DOWN_READ_I_ALLOC_SEM(i)
50 #define LASSERT_MDS_ORPHAN_READ_LOCKED(i) LASSERT_I_ALLOC_SEM_READ_LOCKED(i)
52 #define MDS_UP_WRITE_ORPHAN_SEM(i) UP_WRITE_I_ALLOC_SEM(i)
53 #define MDS_DOWN_WRITE_ORPHAN_SEM(i) DOWN_WRITE_I_ALLOC_SEM(i)
54 #define LASSERT_MDS_ORPHAN_WRITE_LOCKED(i) LASSERT_I_ALLOC_SEM_WRITE_LOCKED(i)
55 #define MDS_PACK_MD_LOCK 1
57 #define MDS_UP_READ_ORPHAN_SEM(i) do { up(&(i)->i_sem); } while (0)
58 #define MDS_DOWN_READ_ORPHAN_SEM(i) do { down(&(i)->i_sem); } while (0)
59 #define LASSERT_MDS_ORPHAN_READ_LOCKED(i) LASSERT(down_trylock(&(i)->i_sem)!=0)
61 #define MDS_UP_WRITE_ORPHAN_SEM(i) do { up(&(i)->i_sem); } while (0)
62 #define MDS_DOWN_WRITE_ORPHAN_SEM(i) do { down(&(i)->i_sem); } while (0)
63 #define LASSERT_MDS_ORPHAN_WRITE_LOCKED(i) LASSERT(down_trylock(&(i)->i_sem)!=0)
64 #define MDS_PACK_MD_LOCK 0
67 static inline int mds_orphan_open_count(struct inode *inode)
69 LASSERT_MDS_ORPHAN_READ_LOCKED(inode);
70 return mds_inode_oatomic(inode);
73 static inline int mds_orphan_open_inc(struct inode *inode)
75 LASSERT_MDS_ORPHAN_WRITE_LOCKED(inode);
76 return ++mds_inode_oatomic(inode);
79 static inline int mds_orphan_open_dec_test(struct inode *inode)
81 LASSERT_MDS_ORPHAN_WRITE_LOCKED(inode);
82 return --mds_inode_oatomic(inode) == 0;
85 #define mds_inode_is_orphan(inode) ((inode)->i_flags & 0x4000000)
87 static inline void mds_inode_set_orphan(struct inode *inode)
89 inode->i_flags |= 0x4000000;
90 CDEBUG(D_VFSTRACE, "setting orphan flag on inode %p\n", inode);
93 static inline void mds_inode_unset_orphan(struct inode *inode)
95 inode->i_flags &= ~(0x4000000);
96 CDEBUG(D_VFSTRACE, "removing orphan flag from inode %p\n", inode);
99 #endif /* __KERNEL__ */
101 #define MDS_CHECK_RESENT(req, reconstruct) \
103 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) { \
104 struct mds_client_data *mcd = \
105 req->rq_export->exp_mds_data.med_mcd; \
106 if (mcd->mcd_last_xid == req->rq_xid) { \
108 RETURN(req->rq_repmsg->status); \
110 DEBUG_REQ(D_HA, req, "no reply for RESENT req (have "LPD64")",\
111 mcd->mcd_last_xid); \
115 /* mds/mds_reint.c */
116 int res_gt(struct ldlm_res_id *res1, struct ldlm_res_id *res2,
117 ldlm_policy_data_t *p1, ldlm_policy_data_t *p2);
118 int enqueue_ordered_locks(struct obd_device *obd, struct ldlm_res_id *p1_res_id,
119 struct lustre_handle *p1_lockh, int p1_lock_mode,
120 ldlm_policy_data_t *p1_policy,
121 struct ldlm_res_id *p2_res_id,
122 struct lustre_handle *p2_lockh, int p2_lock_mode,
123 ldlm_policy_data_t *p2_policy);
124 void mds_commit_cb(struct obd_device *, __u64 last_rcvd, void *data, int error);
125 int mds_finish_transno(struct mds_obd *mds, struct inode *inode, void *handle,
126 struct ptlrpc_request *req, int rc, __u32 op_data);
127 void mds_reconstruct_generic(struct ptlrpc_request *req);
128 void mds_req_from_mcd(struct ptlrpc_request *req, struct mds_client_data *mcd);
129 int mds_get_parent_child_locked(struct obd_device *obd, struct mds_obd *mds,
131 struct lustre_handle *parent_lockh,
132 struct dentry **dparentp, int parent_mode,
133 __u64 parent_lockpart,
134 char *name, int namelen,
135 struct lustre_handle *child_lockh,
136 struct dentry **dchildp, int child_mode,
137 __u64 child_lockpart);
138 int mds_lock_new_child(struct obd_device *obd, struct inode *inode,
139 struct lustre_handle *child_lockh);
140 int mds_osc_setattr_async(struct obd_device *obd, struct inode *inode,
141 struct lov_mds_md *lmm, int lmm_size,
142 struct llog_cookie *logcookies, struct ll_fid *fid);
144 int mds_get_parents_children_locked(struct obd_device *obd,
146 struct ll_fid *p1_fid,
147 struct dentry **de_srcdirp,
148 struct ll_fid *p2_fid,
149 struct dentry **de_tgtdirp,
151 const char *old_name, int old_len,
152 struct dentry **de_oldp,
153 const char *new_name, int new_len,
154 struct dentry **de_newp,
155 struct lustre_handle *dlm_handles,
158 void mds_shrink_reply(struct obd_device *obd, struct ptlrpc_request *req,
159 struct mds_body *body);
160 int mds_get_cookie_size(struct obd_device *obd, struct lov_mds_md *lmm);
162 int mds_update_unpack(struct ptlrpc_request *, int offset,
163 struct mds_update_record *);
164 int mds_init_ucred(struct lvfs_ucred *ucred, struct ptlrpc_request *req,
166 void mds_exit_ucred(struct lvfs_ucred *ucred, struct mds_obd *obd);
168 /* mds/mds_unlink_open.c */
169 int mds_cleanup_pending(struct obd_device *obd);
173 int mds_log_op_unlink(struct obd_device *obd, struct inode *inode,
174 struct lov_mds_md *lmm, int lmm_size,
175 struct llog_cookie *logcookies, int cookies_size);
176 int mds_log_op_setattr(struct obd_device *obd, struct inode *inode,
177 struct lov_mds_md *lmm, int lmm_size,
178 struct llog_cookie *logcookies, int cookies_size);
179 int mds_llog_init(struct obd_device *obd, struct obd_device *tgt, int count,
180 struct llog_catid *logid);
181 int mds_llog_finish(struct obd_device *obd, int count);
184 int mds_lov_connect(struct obd_device *obd, char * lov_name);
185 int mds_lov_disconnect(struct obd_device *obd);
186 int mds_lov_write_objids(struct obd_device *obd);
187 void mds_lov_update_objids(struct obd_device *obd, obd_id *ids);
188 int mds_lov_clear_orphans(struct mds_obd *mds, struct obd_uuid *ost_uuid);
189 int mds_lov_set_nextid(struct obd_device *obd);
190 int mds_lov_start_synchronize(struct obd_device *obd,
191 struct obd_device *watched,
192 void *data, int nonblock);
193 int mds_post_mds_lovconf(struct obd_device *obd);
194 int mds_notify(struct obd_device *obd, struct obd_device *watched,
195 enum obd_notify_event ev, void *data);
196 int mds_convert_lov_ea(struct obd_device *obd, struct inode *inode,
197 struct lov_mds_md *lmm, int lmm_size);
198 void mds_objids_from_lmm(obd_id *ids, struct lov_mds_md *lmm,
199 struct lov_desc *desc);
200 int mds_init_lov_desc(struct obd_device *obd, struct obd_export *osc_exp);
203 int mds_query_write_access(struct inode *inode);
204 int mds_open(struct mds_update_record *rec, int offset,
205 struct ptlrpc_request *req, struct lustre_handle *);
206 int mds_pin(struct ptlrpc_request *req, int offset);
207 void mds_mfd_unlink(struct mds_file_data *mfd, int decref);
208 int mds_mfd_close(struct ptlrpc_request *req, int offset, struct obd_device *obd,
209 struct mds_file_data *mfd, int unlink_orphan);
210 int mds_close(struct ptlrpc_request *req, int offset);
211 int mds_done_writing(struct ptlrpc_request *req, int offset);
214 int mds_join_file(struct mds_update_record *rec, struct ptlrpc_request *req,
215 struct dentry *dchild, struct lustre_handle *lockh);
218 int mds_client_add(struct obd_device *obd, struct mds_obd *mds,
219 struct mds_export_data *med, int cl_off);
220 int mds_client_free(struct obd_export *exp);
221 int mds_obd_create(struct obd_export *exp, struct obdo *oa,
222 struct lov_stripe_md **ea, struct obd_trans_info *oti);
223 int mds_obd_destroy(struct obd_export *exp, struct obdo *oa,
224 struct lov_stripe_md *ea, struct obd_trans_info *oti,
225 struct obd_export *md_exp);
228 extern struct lvfs_callback_ops mds_lvfs_ops;
229 extern int mds_iocontrol(unsigned int cmd, struct obd_export *exp,
230 int len, void *karg, void *uarg);
231 int mds_postrecov(struct obd_device *obd);
232 int mds_init_export(struct obd_export *exp);
234 int mds_get_md(struct obd_device *, struct inode *, void *md, int *size,
236 int mds_pack_md(struct obd_device *, struct lustre_msg *, int offset,
237 struct mds_body *, struct inode *, int lock);
238 void mds_pack_inode2fid(struct ll_fid *fid, struct inode *inode);
239 void mds_pack_inode2body(struct mds_body *body, struct inode *inode);
241 int mds_pack_acl(struct mds_export_data *med, struct inode *inode,
242 struct lustre_msg *repmsg, struct mds_body *repbody,
246 extern quota_interface_t mds_quota_interface;
247 extern quota_interface_t *quota_interface;
249 /* mds/mds_xattr.c */
250 int mds_setxattr(struct ptlrpc_request *req);
251 int mds_getxattr(struct ptlrpc_request *req);
253 static inline int mds_fid2str(char *str, __u64 id, __u32 generation)
255 return sprintf(str, "%llx:%08x", (unsigned long long)id, generation);
258 #endif /* _MDS_INTERNAL_H */