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 /* for MDS_CLOSE requests */
22 __u64 mcd_last_close_transno; /* last completed transaction ID */
23 __u64 mcd_last_close_xid; /* xid for the last transaction */
24 __u32 mcd_last_close_result; /* result from last RPC */
25 __u32 mcd_last_close_data; /* per-op data (disposition for open &c.) */
26 __u8 mcd_padding[LR_CLIENT_SIZE - 88];
29 #define MDS_SERVICE_WATCHDOG_TIMEOUT (obd_timeout * 1000)
31 #define MAX_ATIME_DIFF 60
33 struct mds_filter_data {
37 #define MDS_FILTERDATA(inode) ((struct mds_filter_data *)(inode)->i_filterdata)
39 static inline struct mds_obd *mds_req2mds(struct ptlrpc_request *req)
41 return &req->rq_export->exp_obd->u.mds;
45 /* Open counts for files. No longer atomic, must hold inode->i_sem */
46 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
47 # define mds_inode_oatomic(inode) ((inode)->i_cindex)
49 # define mds_inode_oatomic(inode) ((inode)->i_attr_flags)
52 #ifdef HAVE_I_ALLOC_SEM
53 #define MDS_UP_READ_ORPHAN_SEM(i) UP_READ_I_ALLOC_SEM(i)
54 #define MDS_DOWN_READ_ORPHAN_SEM(i) DOWN_READ_I_ALLOC_SEM(i)
55 #define LASSERT_MDS_ORPHAN_READ_LOCKED(i) LASSERT_I_ALLOC_SEM_READ_LOCKED(i)
57 #define MDS_UP_WRITE_ORPHAN_SEM(i) UP_WRITE_I_ALLOC_SEM(i)
58 #define MDS_DOWN_WRITE_ORPHAN_SEM(i) DOWN_WRITE_I_ALLOC_SEM(i)
59 #define LASSERT_MDS_ORPHAN_WRITE_LOCKED(i) LASSERT_I_ALLOC_SEM_WRITE_LOCKED(i)
60 #define MDS_PACK_MD_LOCK 1
62 #define MDS_UP_READ_ORPHAN_SEM(i) do { up(&(i)->i_sem); } while (0)
63 #define MDS_DOWN_READ_ORPHAN_SEM(i) do { down(&(i)->i_sem); } while (0)
64 #define LASSERT_MDS_ORPHAN_READ_LOCKED(i) LASSERT(down_trylock(&(i)->i_sem)!=0)
66 #define MDS_UP_WRITE_ORPHAN_SEM(i) do { up(&(i)->i_sem); } while (0)
67 #define MDS_DOWN_WRITE_ORPHAN_SEM(i) do { down(&(i)->i_sem); } while (0)
68 #define LASSERT_MDS_ORPHAN_WRITE_LOCKED(i) LASSERT(down_trylock(&(i)->i_sem)!=0)
69 #define MDS_PACK_MD_LOCK 0
72 static inline int mds_orphan_open_count(struct inode *inode)
74 LASSERT_MDS_ORPHAN_READ_LOCKED(inode);
75 return mds_inode_oatomic(inode);
78 static inline int mds_orphan_open_inc(struct inode *inode)
80 LASSERT_MDS_ORPHAN_WRITE_LOCKED(inode);
81 return ++mds_inode_oatomic(inode);
84 static inline int mds_orphan_open_dec_test(struct inode *inode)
86 LASSERT_MDS_ORPHAN_WRITE_LOCKED(inode);
87 return --mds_inode_oatomic(inode) == 0;
90 #define mds_inode_is_orphan(inode) ((inode)->i_flags & 0x4000000)
92 static inline void mds_inode_set_orphan(struct inode *inode)
94 inode->i_flags |= 0x4000000;
95 CDEBUG(D_VFSTRACE, "setting orphan flag on inode %p\n", inode);
98 static inline void mds_inode_unset_orphan(struct inode *inode)
100 inode->i_flags &= ~(0x4000000);
101 CDEBUG(D_VFSTRACE, "removing orphan flag from inode %p\n", inode);
104 #endif /* __KERNEL__ */
106 #define MDS_CHECK_RESENT(req, reconstruct) \
108 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) { \
109 struct mds_client_data *mcd = \
110 req->rq_export->exp_mds_data.med_mcd; \
111 if (le64_to_cpu(mcd->mcd_last_xid) == req->rq_xid) { \
113 RETURN(le32_to_cpu(mcd->mcd_last_result)); \
115 if (le64_to_cpu(mcd->mcd_last_close_xid) == req->rq_xid) { \
117 RETURN(le32_to_cpu(mcd->mcd_last_close_result)); \
119 DEBUG_REQ(D_HA, req, "no reply for RESENT req (have "LPD64")",\
120 mcd->mcd_last_xid); \
124 /* mds/mds_reint.c */
125 int res_gt(struct ldlm_res_id *res1, struct ldlm_res_id *res2,
126 ldlm_policy_data_t *p1, ldlm_policy_data_t *p2);
127 int enqueue_ordered_locks(struct obd_device *obd, struct ldlm_res_id *p1_res_id,
128 struct lustre_handle *p1_lockh, int p1_lock_mode,
129 ldlm_policy_data_t *p1_policy,
130 struct ldlm_res_id *p2_res_id,
131 struct lustre_handle *p2_lockh, int p2_lock_mode,
132 ldlm_policy_data_t *p2_policy);
133 void mds_commit_cb(struct obd_device *, __u64 last_rcvd, void *data, int error);
134 int mds_finish_transno(struct mds_obd *mds, struct inode *inode, void *handle,
135 struct ptlrpc_request *req, int rc, __u32 op_data);
136 void mds_reconstruct_generic(struct ptlrpc_request *req);
137 void mds_req_from_mcd(struct ptlrpc_request *req, struct mds_client_data *mcd);
138 int mds_get_parent_child_locked(struct obd_device *obd, struct mds_obd *mds,
140 struct lustre_handle *parent_lockh,
141 struct dentry **dparentp, int parent_mode,
142 __u64 parent_lockpart,
143 char *name, int namelen,
144 struct lustre_handle *child_lockh,
145 struct dentry **dchildp, int child_mode,
146 __u64 child_lockpart);
147 int mds_lock_new_child(struct obd_device *obd, struct inode *inode,
148 struct lustre_handle *child_lockh);
149 int mds_osc_setattr_async(struct obd_device *obd, struct inode *inode,
150 struct lov_mds_md *lmm, int lmm_size,
151 struct llog_cookie *logcookies, struct ll_fid *fid);
153 int mds_get_parents_children_locked(struct obd_device *obd,
155 struct ll_fid *p1_fid,
156 struct dentry **de_srcdirp,
157 struct ll_fid *p2_fid,
158 struct dentry **de_tgtdirp,
160 const char *old_name, int old_len,
161 struct dentry **de_oldp,
162 const char *new_name, int new_len,
163 struct dentry **de_newp,
164 struct lustre_handle *dlm_handles,
167 void mds_shrink_reply(struct obd_device *obd, struct ptlrpc_request *req,
168 struct mds_body *body, int md_off);
169 int mds_get_cookie_size(struct obd_device *obd, struct lov_mds_md *lmm);
171 int mds_update_unpack(struct ptlrpc_request *, int offset,
172 struct mds_update_record *);
173 int mds_init_ucred(struct lvfs_ucred *ucred, struct ptlrpc_request *req,
175 void mds_exit_ucred(struct lvfs_ucred *ucred, struct mds_obd *obd);
177 /* mds/mds_unlink_open.c */
178 int mds_osc_destroy_orphan(struct obd_device *obd, umode_t mode,
179 struct lov_mds_md *lmm, int lmm_size,
180 struct llog_cookie *logcookies, int log_unlink);
181 int mds_cleanup_pending(struct obd_device *obd);
184 int mds_log_op_unlink(struct obd_device *obd,
185 struct lov_mds_md *lmm, int lmm_size,
186 struct llog_cookie *logcookies, int cookies_size);
187 int mds_log_op_setattr(struct obd_device *obd, struct inode *inode,
188 struct lov_mds_md *lmm, int lmm_size,
189 struct llog_cookie *logcookies, int cookies_size);
190 int mds_llog_init(struct obd_device *obd, struct obd_device *tgt, int count,
191 struct llog_catid *logid, struct obd_uuid *uuid);
192 int mds_llog_finish(struct obd_device *obd, int count);
195 int mds_lov_connect(struct obd_device *obd, char * lov_name);
196 int mds_lov_disconnect(struct obd_device *obd);
197 int mds_lov_write_objids(struct obd_device *obd);
198 void mds_lov_update_objids(struct obd_device *obd, obd_id *ids);
199 int mds_lov_clear_orphans(struct mds_obd *mds, struct obd_uuid *ost_uuid);
200 int mds_lov_set_nextid(struct obd_device *obd);
201 int mds_lov_start_synchronize(struct obd_device *obd,
202 struct obd_device *watched,
203 void *data, int nonblock);
204 int mds_post_mds_lovconf(struct obd_device *obd);
205 int mds_notify(struct obd_device *obd, struct obd_device *watched,
206 enum obd_notify_event ev, void *data);
207 int mds_convert_lov_ea(struct obd_device *obd, struct inode *inode,
208 struct lov_mds_md *lmm, int lmm_size);
209 void mds_objids_from_lmm(obd_id *ids, struct lov_mds_md *lmm,
210 struct lov_desc *desc);
211 int mds_init_lov_desc(struct obd_device *obd, struct obd_export *osc_exp);
214 int mds_query_write_access(struct inode *inode);
215 int mds_open(struct mds_update_record *rec, int offset,
216 struct ptlrpc_request *req, struct lustre_handle *);
217 int mds_pin(struct ptlrpc_request *req, int offset);
218 void mds_mfd_unlink(struct mds_file_data *mfd, int decref);
219 int mds_mfd_close(struct ptlrpc_request *req, int offset,struct obd_device *obd,
220 struct mds_file_data *mfd, int unlink_orphan,
221 struct lov_mds_md *lmm, int lmm_size,
222 struct llog_cookie *logcookies, int cookies_size,
224 int mds_close(struct ptlrpc_request *req, int offset);
225 int mds_done_writing(struct ptlrpc_request *req, int offset);
228 int mds_join_file(struct mds_update_record *rec, struct ptlrpc_request *req,
229 struct dentry *dchild, struct lustre_handle *lockh);
232 int mds_client_add(struct obd_device *obd, struct obd_export *exp, int cl_off);
233 int mds_client_free(struct obd_export *exp);
234 int mds_obd_create(struct obd_export *exp, struct obdo *oa,
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,
238 struct obd_export *md_exp);
241 extern struct lvfs_callback_ops mds_lvfs_ops;
242 extern int mds_iocontrol(unsigned int cmd, struct obd_export *exp,
243 int len, void *karg, void *uarg);
244 int mds_postrecov(struct obd_device *obd);
245 int mds_init_export(struct obd_export *exp);
247 int mds_get_md(struct obd_device *, struct inode *, void *md, int *size,
249 int mds_pack_md(struct obd_device *, struct lustre_msg *, int offset,
250 struct mds_body *, struct inode *, int lock);
251 void mds_pack_inode2fid(struct ll_fid *fid, struct inode *inode);
252 void mds_pack_inode2body(struct mds_body *body, struct inode *inode);
254 int mds_pack_acl(struct mds_export_data *med, struct inode *inode,
255 struct lustre_msg *repmsg, struct mds_body *repbody,
259 extern quota_interface_t *mds_quota_interface_ref;
261 /* mds/mds_xattr.c */
262 int mds_setxattr(struct ptlrpc_request *req);
263 int mds_getxattr(struct ptlrpc_request *req);
265 /* mds/lproc_mds.c */
279 void mds_counter_incr(struct obd_export *exp, int opcode);
280 void mds_stats_counter_init(struct lprocfs_stats *stats);
282 #endif /* _MDS_INTERNAL_H */