1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * This file is part of Lustre, http://www.lustre.org
7 * See also lustre_idl.h for wire formats of requests.
13 #include <lustre_handles.h>
14 #include <libcfs/kp30.h>
15 #include <lustre/lustre_idl.h>
16 #include <lustre_lib.h>
17 #include <lustre_dlm.h>
18 #include <lustre_log.h>
19 #include <lustre_export.h>
21 #if defined(__linux__)
22 #include <linux/lustre_mds.h>
23 #elif defined(__APPLE__)
24 #include <darwin/lustre_mds.h>
25 #elif defined(__WINNT__)
26 #include <winnt/lustre_mds.h>
28 #error Unsupported operating system.
31 struct ldlm_lock_desc;
33 struct ptlrpc_connection;
36 struct ptlrpc_request;
41 struct mds_body *body;
42 struct lov_stripe_md *lsm;
43 #ifdef CONFIG_FS_POSIX_ACL
44 struct posix_acl *posix_acl;
61 struct mds_update_record {
63 struct ll_fid *ur_fid1;
64 struct ll_fid *ur_fid2;
72 struct llog_cookie *ur_logcookies;
73 struct iattr ur_iattr;
74 struct lvfs_ucred ur_uc;
79 struct lvfs_grp_hash_entry *ur_grp_entry;
80 struct ldlm_request *ur_dlm;
83 /* file data for open files on MDS */
84 struct mds_file_data {
85 struct portals_handle mfd_handle; /* must be first */
86 atomic_t mfd_refcount;
87 struct list_head mfd_list; /* protected by med_open_lock */
90 struct dentry *mfd_dentry;
94 #ifdef CONFIG_FS_POSIX_ACL
96 # define MDS_XATTR_NAME_ACL_ACCESS XATTR_NAME_ACL_ACCESS
97 # define mds_xattr_acl_size(entry) xattr_acl_size(entry)
99 # define MDS_XATTR_NAME_ACL_ACCESS POSIX_ACL_XATTR_ACCESS
100 # define mds_xattr_acl_size(entry) posix_acl_xattr_size(entry)
102 # define LUSTRE_POSIX_ACL_MAX_ENTRIES (32)
103 # define LUSTRE_POSIX_ACL_MAX_SIZE \
104 (mds_xattr_acl_size(LUSTRE_POSIX_ACL_MAX_ENTRIES))
106 # define LUSTRE_POSIX_ACL_MAX_SIZE 0
109 /* mds/mds_reint.c */
110 int mds_reint_rec(struct mds_update_record *r, int offset,
111 struct ptlrpc_request *req, struct lustre_handle *);
115 /* mdc/mdc_locks.c */
116 struct md_enqueue_info;
118 int it_disposition(struct lookup_intent *it, int flag);
119 void it_set_disposition(struct lookup_intent *it, int flag);
120 void it_clear_disposition(struct lookup_intent *it, int flag);
121 int it_open_error(int phase, struct lookup_intent *it);
122 void mdc_set_lock_data(__u64 *lockh, void *data);
123 int mdc_change_cbdata(struct obd_export *exp, struct ll_fid *fid,
124 ldlm_iterator_t it, void *data);
125 int mdc_revalidate_lock(struct obd_export *exp,
126 struct lookup_intent *it,
128 int mdc_intent_lock(struct obd_export *exp,
129 struct mdc_op_data *,
130 void *lmm, int lmmsize,
131 struct lookup_intent *, int,
132 struct ptlrpc_request **reqp,
133 ldlm_blocking_callback cb_blocking, int extra_lock_flags);
134 int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
135 struct lookup_intent *it, struct mdc_op_data *data,
136 struct lustre_handle *lockh, void *lmm, int lmmlen,
137 int extra_lock_flags);
138 int mdc_intent_getattr_async(struct obd_export *exp,
139 struct md_enqueue_info *minfo,
140 struct ldlm_enqueue_info *einfo);
142 /* mdc/mdc_request.c */
143 int mdc_init_ea_size(struct obd_export *mdc_exp, struct obd_export *lov_exp);
144 int mdc_req2lustre_md(struct ptlrpc_request *req, int offset,
145 struct obd_export *exp, struct lustre_md *md);
146 void mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md);
147 int mdc_getstatus(struct obd_export *exp, struct ll_fid *rootfid);
148 int mdc_getattr(struct obd_export *exp, struct ll_fid *fid,
149 obd_valid valid, unsigned int ea_size,
150 struct ptlrpc_request **request);
151 int mdc_getattr_name(struct obd_export *exp, struct ll_fid *fid,
152 const char *filename, int namelen, unsigned long valid,
153 unsigned int ea_size, struct ptlrpc_request **request);
154 int mdc_setattr(struct obd_export *exp, struct mdc_op_data *data,
155 struct iattr *iattr, void *ea, int ealen, void *ea2, int ea2len,
156 struct ptlrpc_request **request);
157 int mdc_setxattr(struct obd_export *exp, struct ll_fid *fid,
158 obd_valid valid, const char *xattr_name,
159 const char *input, int input_size,
160 int output_size, int flags,
161 struct ptlrpc_request **request);
162 int mdc_getxattr(struct obd_export *exp, struct ll_fid *fid,
163 obd_valid valid, const char *xattr_name,
164 const char *input, int input_size,
165 int output_size, struct ptlrpc_request **request);
166 int mdc_open(struct obd_export *exp, obd_id ino, int type, int flags,
167 struct lov_mds_md *lmm, int lmm_size, struct lustre_handle *fh,
168 struct ptlrpc_request **);
169 struct obd_client_handle;
170 void mdc_set_open_replay_data(struct obd_client_handle *och,
171 struct ptlrpc_request *open_req);
172 void mdc_clear_open_replay_data(struct obd_client_handle *och);
173 int mdc_close(struct obd_export *, struct obdo *, struct obd_client_handle *,
174 struct ptlrpc_request **);
175 int mdc_readpage(struct obd_export *exp, struct ll_fid *mdc_fid, __u64 offset,
176 struct page *, struct ptlrpc_request **);
177 int mdc_create(struct obd_export *exp, struct mdc_op_data *op_data,
178 const void *data, int datalen, int mode, __u32 uid, __u32 gid,
179 __u32 cap_effective, __u64 rdev,struct ptlrpc_request **request);
180 int mdc_unlink(struct obd_export *exp, struct mdc_op_data *data,
181 struct ptlrpc_request **request);
182 int mdc_link(struct obd_export *exp, struct mdc_op_data *data,
183 struct ptlrpc_request **);
184 int mdc_rename(struct obd_export *exp, struct mdc_op_data *data,
185 const char *old, int oldlen, const char *new, int newlen,
186 struct ptlrpc_request **request);
187 int mdc_sync(struct obd_export *exp, struct ll_fid *fid,
188 struct ptlrpc_request **);
189 int mdc_create_client(struct obd_uuid uuid, struct ptlrpc_client *cl);
190 int mdc_resource_get_unused(struct obd_export *exp, struct ll_fid *fid,
191 struct list_head *cancels, ldlm_mode_t mode,
194 /* Store the generation of a newly-created inode in |req| for replay. */
195 void mdc_store_inode_generation(struct ptlrpc_request *req, int reqoff,
197 int mdc_llog_process(struct obd_export *, char *logname, llog_cb_t, void *data);
198 int mdc_done_writing(struct obd_export *exp, struct obdo *);
200 static inline void mdc_pack_fid(struct ll_fid *fid, obd_id ino, __u32 gen,
204 fid->generation = gen;
208 static inline int it_to_lock_mode(struct lookup_intent *it)
210 /* CREAT needs to be tested before open (both could be set) */
211 if (it->it_op & IT_CREAT)
213 else if (it->it_op & (IT_READDIR | IT_GETATTR | IT_OPEN | IT_LOOKUP))
220 /* ioctls for trying requests */
221 #define IOC_REQUEST_TYPE 'f'
222 #define IOC_REQUEST_MIN_NR 30
224 #define IOC_REQUEST_GETATTR _IOWR('f', 30, long)
225 #define IOC_REQUEST_READPAGE _IOWR('f', 31, long)
226 #define IOC_REQUEST_SETATTR _IOWR('f', 32, long)
227 #define IOC_REQUEST_CREATE _IOWR('f', 33, long)
228 #define IOC_REQUEST_OPEN _IOWR('f', 34, long)
229 #define IOC_REQUEST_CLOSE _IOWR('f', 35, long)
230 #define IOC_REQUEST_MAX_NR 35
232 /* metadata stat-ahead */
233 typedef int (* md_enqueue_cb_t)(struct obd_export *exp,
234 struct ptlrpc_request *req,
235 struct md_enqueue_info *minfo,
238 struct md_enqueue_info {
239 struct obd_export *mi_exp;
240 struct mdc_op_data mi_data;
241 struct lookup_intent mi_it;
242 struct lustre_handle mi_lockh;
243 struct dentry *mi_dentry;
244 md_enqueue_cb_t mi_cb;
248 struct mdc_enqueue_args {
249 struct md_enqueue_info *ma_mi;
250 struct ldlm_enqueue_info *ma_ei;