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 # define mds_inode_oatomic(inode) ((inode)->i_cindex)
48 #ifdef HAVE_I_ALLOC_SEM
49 #define MDS_UP_READ_ORPHAN_SEM(i) UP_READ_I_ALLOC_SEM(i)
50 #define MDS_DOWN_READ_ORPHAN_SEM(i) DOWN_READ_I_ALLOC_SEM(i)
51 #define LASSERT_MDS_ORPHAN_READ_LOCKED(i) LASSERT_I_ALLOC_SEM_READ_LOCKED(i)
53 #define MDS_UP_WRITE_ORPHAN_SEM(i) UP_WRITE_I_ALLOC_SEM(i)
54 #define MDS_DOWN_WRITE_ORPHAN_SEM(i) DOWN_WRITE_I_ALLOC_SEM(i)
55 #define LASSERT_MDS_ORPHAN_WRITE_LOCKED(i) LASSERT_I_ALLOC_SEM_WRITE_LOCKED(i)
56 #define MDS_PACK_MD_LOCK 1
58 #define MDS_UP_READ_ORPHAN_SEM(i) do { up(&(i)->i_sem); } while (0)
59 #define MDS_DOWN_READ_ORPHAN_SEM(i) do { down(&(i)->i_sem); } while (0)
60 #define LASSERT_MDS_ORPHAN_READ_LOCKED(i) LASSERT(down_trylock(&(i)->i_sem)!=0)
62 #define MDS_UP_WRITE_ORPHAN_SEM(i) do { up(&(i)->i_sem); } while (0)
63 #define MDS_DOWN_WRITE_ORPHAN_SEM(i) do { down(&(i)->i_sem); } while (0)
64 #define LASSERT_MDS_ORPHAN_WRITE_LOCKED(i) LASSERT(down_trylock(&(i)->i_sem)!=0)
65 #define MDS_PACK_MD_LOCK 0
68 static inline int mds_orphan_open_count(struct inode *inode)
70 LASSERT_MDS_ORPHAN_READ_LOCKED(inode);
71 return mds_inode_oatomic(inode);
74 static inline int mds_orphan_open_inc(struct inode *inode)
76 LASSERT_MDS_ORPHAN_WRITE_LOCKED(inode);
77 return ++mds_inode_oatomic(inode);
80 static inline int mds_orphan_open_dec_test(struct inode *inode)
82 LASSERT_MDS_ORPHAN_WRITE_LOCKED(inode);
83 return --mds_inode_oatomic(inode) == 0;
86 #define mds_inode_is_orphan(inode) ((inode)->i_flags & 0x4000000)
88 static inline void mds_inode_set_orphan(struct inode *inode)
90 inode->i_flags |= 0x4000000;
91 CDEBUG(D_VFSTRACE, "setting orphan flag on inode %p\n", inode);
94 static inline void mds_inode_unset_orphan(struct inode *inode)
96 inode->i_flags &= ~(0x4000000);
97 CDEBUG(D_VFSTRACE, "removing orphan flag from inode %p\n", inode);
100 #endif /* __KERNEL__ */
102 #define MDS_CHECK_RESENT(req, reconstruct) \
104 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) { \
105 struct mds_client_data *mcd = \
106 req->rq_export->exp_mds_data.med_mcd; \
107 if (le64_to_cpu(mcd->mcd_last_xid) == req->rq_xid) { \
109 RETURN(le32_to_cpu(mcd->mcd_last_result)); \
111 if (le64_to_cpu(mcd->mcd_last_close_xid) == req->rq_xid) { \
113 RETURN(le32_to_cpu(mcd->mcd_last_close_result)); \
115 DEBUG_REQ(D_HA, req, "no reply for RESENT req (have "LPD64")",\
116 mcd->mcd_last_xid); \
120 /* mds/mds_reint.c */
121 int res_gt(const struct ldlm_res_id *res1, const struct ldlm_res_id *res2,
122 ldlm_policy_data_t *p1, ldlm_policy_data_t *p2);
123 int enqueue_ordered_locks(struct obd_device *obd,
124 const struct ldlm_res_id *p1_res_id,
125 struct lustre_handle *p1_lockh, int p1_lock_mode,
126 ldlm_policy_data_t *p1_policy,
127 const struct ldlm_res_id *p2_res_id,
128 struct lustre_handle *p2_lockh, int p2_lock_mode,
129 ldlm_policy_data_t *p2_policy);
130 void mds_commit_cb(struct obd_device *, __u64 last_rcvd, void *data, int error);
131 int mds_finish_transno(struct mds_obd *mds, struct inode *inode, void *handle,
132 struct ptlrpc_request *req, int rc, __u32 op_data,
134 void mds_reconstruct_generic(struct ptlrpc_request *req);
135 void mds_req_from_mcd(struct ptlrpc_request *req, struct mds_client_data *mcd);
136 int mds_get_parent_child_locked(struct obd_device *obd, struct mds_obd *mds,
138 struct lustre_handle *parent_lockh,
139 struct dentry **dparentp, int parent_mode,
140 __u64 parent_lockpart,
141 char *name, int namelen,
142 struct lustre_handle *child_lockh,
143 struct dentry **dchildp, int child_mode,
144 __u64 child_lockpart);
145 int mds_lock_new_child(struct obd_device *obd, struct inode *inode,
146 struct lustre_handle *child_lockh);
148 int mds_get_parents_children_locked(struct obd_device *obd,
150 struct ll_fid *p1_fid,
151 struct dentry **de_srcdirp,
152 struct ll_fid *p2_fid,
153 struct dentry **de_tgtdirp,
155 const char *old_name, int old_len,
156 struct dentry **de_oldp,
157 const char *new_name, int new_len,
158 struct dentry **de_newp,
159 struct lustre_handle *dlm_handles,
162 void mds_shrink_reply(struct obd_device *obd, struct ptlrpc_request *req,
163 struct mds_body *body, int md_off);
164 int mds_get_cookie_size(struct obd_device *obd, struct lov_mds_md *lmm);
166 int mds_update_unpack(struct ptlrpc_request *, int offset,
167 struct mds_update_record *);
168 int mds_init_ucred(struct lvfs_ucred *ucred, struct ptlrpc_request *req,
170 void mds_exit_ucred(struct lvfs_ucred *ucred, struct mds_obd *obd);
172 /* mds/mds_unlink_open.c */
173 int mds_osc_destroy_orphan(struct obd_device *obd, umode_t mode,
174 struct lov_mds_md *lmm, int lmm_size,
175 struct llog_cookie *logcookies, int log_unlink);
176 int mds_cleanup_pending(struct obd_device *obd);
180 int mds_llog_init(struct obd_device *obd, struct obd_llogs *llogs,
181 struct obd_device *tgt, int count,
182 struct llog_catid *logid, struct obd_uuid *uuid);
183 int mds_llog_finish(struct obd_device *obd, int count);
186 int mds_lov_connect(struct obd_device *obd, char * lov_name);
187 int mds_lov_disconnect(struct obd_device *obd);
188 int mds_lov_write_objids(struct obd_device *obd);
190 int mds_lov_clear_orphans(struct mds_obd *mds, struct obd_uuid *ost_uuid);
191 void mds_lov_update_objids(struct obd_device *obd, struct lov_mds_md *lmm);
192 int mds_lov_set_nextid(struct obd_device *obd);
194 int mds_lov_start_synchronize(struct obd_device *obd,
195 struct obd_device *watched,
196 void *data, int nonblock);
197 int mds_post_mds_lovconf(struct obd_device *obd);
198 int mds_notify(struct obd_device *obd, struct obd_device *watched,
199 enum obd_notify_event ev, void *data);
200 int mds_convert_lov_ea(struct obd_device *obd, struct inode *inode,
201 struct lov_mds_md *lmm, int lmm_size);
202 int mds_init_lov_desc(struct obd_device *obd, struct obd_export *osc_exp);
205 int mds_query_write_access(struct inode *inode);
206 int mds_open(struct mds_update_record *rec, int offset,
207 struct ptlrpc_request *req, struct lustre_handle *);
208 int mds_pin(struct ptlrpc_request *req, int offset);
209 void mds_mfd_unlink(struct mds_file_data *mfd, int decref);
210 int mds_mfd_close(struct ptlrpc_request *req, int offset,struct obd_device *obd,
211 struct mds_file_data *mfd, int unlink_orphan,
212 struct lov_mds_md *lmm, int lmm_size,
213 struct llog_cookie *logcookies, int cookies_size,
215 int mds_close(struct ptlrpc_request *req, int offset);
216 int mds_done_writing(struct ptlrpc_request *req, int offset);
219 int mds_join_file(struct mds_update_record *rec, struct ptlrpc_request *req,
220 struct dentry *dchild, struct lustre_handle *lockh);
223 int mds_client_add(struct obd_device *obd, struct obd_export *exp, int cl_off);
224 int mds_client_free(struct obd_export *exp);
225 int mds_obd_create(struct obd_export *exp, struct obdo *oa,
226 struct lov_stripe_md **ea, struct obd_trans_info *oti);
227 int mds_obd_destroy(struct obd_export *exp, struct obdo *oa,
228 struct lov_stripe_md *ea, struct obd_trans_info *oti,
229 struct obd_export *md_exp);
230 void mds_init_ctxt(struct obd_device *obd, struct vfsmount *mnt);
233 extern struct lvfs_callback_ops mds_lvfs_ops;
234 extern int mds_iocontrol(unsigned int cmd, struct obd_export *exp,
235 int len, void *karg, void *uarg);
236 int mds_postrecov(struct obd_device *obd);
237 int mds_init_export(struct obd_export *exp);
239 int mds_get_md(struct obd_device *, struct inode *, void *md, int *size,
241 int mds_pack_md(struct obd_device *, struct lustre_msg *, int offset,
242 struct mds_body *, struct inode *, int lock);
243 void mds_pack_inode2fid(struct ll_fid *fid, struct inode *inode);
244 void mds_pack_inode2body(struct mds_body *body, struct inode *inode);
246 int mds_pack_acl(struct mds_export_data *med, struct inode *inode,
247 struct lustre_msg *repmsg, struct mds_body *repbody,
251 extern quota_interface_t *mds_quota_interface_ref;
253 /* mds/mds_xattr.c */
254 int mds_setxattr(struct ptlrpc_request *req);
255 int mds_getxattr(struct ptlrpc_request *req);
257 /* mds/lproc_mds.c */
271 void mds_counter_incr(struct obd_export *exp, int opcode);
272 void mds_stats_counter_init(struct lprocfs_stats *stats);
274 #endif /* _MDS_INTERNAL_H */