1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2003 Cluster File Systems, Inc.
6 * This code is issued under the GNU General Public License.
7 * See the file COPYING in this distribution
10 #ifndef LLITE_INTERNAL_H
11 #define LLITE_INTERNAL_H
14 struct obd_uuid ll_sb_uuid;
15 // struct lustre_handle ll_mdc_conn;
16 struct obd_export *ll_mdc_exp;
17 struct obd_export *ll_osc_exp;
18 struct proc_dir_entry* ll_proc_root;
19 obd_id ll_rootino; /* number of root inode */
21 struct obd_uuid ll_mds_uuid;
22 struct obd_uuid ll_mds_peer_uuid;
23 struct lustre_mount_data *ll_lmd;
27 wait_queue_head_t ll_commitcbd_waitq;
28 wait_queue_head_t ll_commitcbd_ctl_waitq;
29 int ll_commitcbd_flags;
30 struct task_struct *ll_commitcbd_thread;
31 time_t ll_commitcbd_waketime;
32 time_t ll_commitcbd_timeout;
33 spinlock_t ll_commitcbd_lock;
34 struct list_head ll_conn_chain; /* per-conn chain of SBs */
36 struct hlist_head ll_orphan_dentry_list; /*please don't ask -p*/
37 struct ll_close_queue *ll_lcq;
39 struct lprocfs_stats *ll_stats; /* lprocfs stats counter */
41 spinlock_t ll_pglist_lock;
42 unsigned long ll_pglist_gen;
43 struct list_head ll_pglist;
46 struct ll_readahead_state {
48 unsigned long ras_last, ras_window, ras_next_index;
51 extern kmem_cache_t *ll_file_data_slab;
53 struct obd_client_handle fd_mds_och;
54 struct ll_readahead_state fd_ras;
61 extern spinlock_t inode_lock;
63 extern void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi);
64 extern struct proc_dir_entry *proc_lustre_fs_root;
66 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
67 # define hlist_del_init list_del_init
70 static inline struct inode *ll_info2i(struct ll_inode_info *lli)
72 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
73 return &lli->lli_vfs_inode;
75 return list_entry(lli, struct inode, u.generic_ip);
79 static inline void ll_i2uctxt(struct ll_uctxt *ctxt, struct inode *i1,
85 if (in_group_p(i1->i_gid))
86 ctxt->gid1 = i1->i_gid;
91 if (in_group_p(i2->i_gid))
92 ctxt->gid2 = i2->i_gid;
100 struct inode *icbd_parent;
101 struct dentry **icbd_childp;
105 #define LL_PRIVBITS_READ 0
106 #define LL_PRIVBITS__LAST 1
107 #define LL_PRIVBITS_MASK ((1 << LL_PRIVBITS__LAST) - 1)
109 #define LLAP_MAGIC 98764321
111 struct ll_async_page {
114 struct page *llap_page;
115 struct list_head llap_pending_write;
116 /* only trust these if the page lock is providing exclusion */
117 int llap_write_queued:1,
118 llap_defer_uptodate:1;
119 struct list_head llap_proc_item;
122 #define LL_CDEBUG_PAGE(page, STR) \
123 CDEBUG(D_PAGE, "page %p map %p ind %lu priv %0lx: " STR, \
124 page, page->mapping, page->index, page->private)
126 /* llite/lproc_llite.c */
127 int lprocfs_register_mountpoint(struct proc_dir_entry *parent,
128 struct super_block *sb, char *osc, char *mdc);
129 void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi);
132 extern struct file_operations ll_dir_operations;
133 extern struct inode_operations ll_dir_inode_operations;
136 int ll_objects_destroy(struct ptlrpc_request *request, struct inode *dir);
137 struct inode *ll_iget(struct super_block *sb, ino_t hash,
138 struct lustre_md *lic);
139 struct dentry *ll_find_alias(struct inode *, struct dentry *);
140 int ll_mdc_cancel_unused(struct lustre_handle *, struct inode *, int flags,
142 int ll_mdc_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *,
143 void *data, int flag);
144 void ll_prepare_mdc_op_data(struct mdc_op_data *,
145 struct inode *i1, struct inode *i2,
146 const char *name, int namelen, int mode);
149 int ll_prepare_write(struct file *, struct page *, unsigned from, unsigned to);
150 int ll_commit_write(struct file *, struct page *, unsigned from, unsigned to);
151 void ll_inode_fill_obdo(struct inode *inode, int cmd, struct obdo *oa);
152 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
153 #define ll_ap_completion ll_ap_completion_24
154 void ll_ap_completion_24(void *data, int cmd, int rc);
156 #define ll_ap_completion ll_ap_completion_26
157 void ll_ap_completion_26(void *data, int cmd, int rc);
159 void ll_removepage(struct page *page);
160 int ll_sync_page(struct page *page);
161 int ll_readpage(struct file *file, struct page *page);
162 struct ll_async_page *llap_from_cookie(void *cookie);
163 struct ll_async_page *llap_from_page(struct page *page);
164 void ll_readahead_init(struct ll_readahead_state *ras);
166 void ll_truncate(struct inode *inode);
169 extern struct file_operations ll_file_operations;
170 extern struct inode_operations ll_file_inode_operations;
171 extern struct inode_operations ll_special_inode_operations;
172 extern int ll_inode_revalidate_it(struct dentry *, struct lookup_intent *);
173 int ll_extent_lock(struct ll_file_data *, struct inode *,
174 struct lov_stripe_md *, int mode, struct ldlm_extent *,
175 struct lustre_handle *);
176 int ll_extent_unlock(struct ll_file_data *, struct inode *,
177 struct lov_stripe_md *, int mode, struct lustre_handle *);
178 int ll_file_open(struct inode *inode, struct file *file);
179 int ll_file_release(struct inode *inode, struct file *file);
180 int ll_lsm_getattr(struct obd_export *, struct lov_stripe_md *, struct obdo *);
181 int ll_extent_lock_no_validate(struct ll_file_data *, struct inode *,
182 struct lov_stripe_md *, int mode,
183 struct ldlm_extent *, struct lustre_handle *,
185 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
186 int ll_getattr(struct vfsmount *mnt, struct dentry *de,
187 struct lookup_intent *it, struct kstat *stat);
191 void ll_intent_drop_lock(struct lookup_intent *);
192 void ll_intent_release(struct lookup_intent *);
193 extern void ll_set_dd(struct dentry *de);
194 void ll_unhash_aliases(struct inode *);
195 void ll_frob_intent(struct lookup_intent **itp, struct lookup_intent *deft);
196 void ll_lookup_finish_locks(struct lookup_intent *it, struct dentry *dentry);
198 /* llite/llite_lib.c */
200 extern struct super_operations ll_super_operations;
201 extern struct super_operations lustre_super_operations;
203 char *ll_read_opt(const char *opt, char *data);
204 int ll_set_opt(const char *opt, char *data, int fl);
205 void ll_options(char *options, char **ost, char **mds, int *flags);
206 void ll_lli_init(struct ll_inode_info *lli);
207 int ll_fill_super(struct super_block *sb, void *data, int silent);
208 int lustre_fill_super(struct super_block *sb, void *data, int silent);
209 void lustre_put_super(struct super_block *sb);
210 void ll_put_super(struct super_block *sb);
211 struct inode *ll_inode_from_lock(struct ldlm_lock *lock);
212 void ll_clear_inode(struct inode *inode);
213 int ll_attr2inode(struct inode *inode, struct iattr *attr, int trunc);
214 int ll_setattr_raw(struct inode *inode, struct iattr *attr);
215 int ll_setattr(struct dentry *de, struct iattr *attr);
216 int ll_statfs(struct super_block *sb, struct kstatfs *sfs);
217 int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
218 unsigned long maxage);
219 void ll_update_inode(struct inode *inode, struct mds_body *body,
220 struct lov_stripe_md *lsm);
221 int it_disposition(struct lookup_intent *it, int flag);
222 void it_set_disposition(struct lookup_intent *it, int flag);
223 void ll_read_inode2(struct inode *inode, void *opaque);
224 int ll_iocontrol(struct inode *inode, struct file *file,
225 unsigned int cmd, unsigned long arg);
226 void ll_umount_begin(struct super_block *sb);
227 int ll_prep_inode(struct obd_export *exp, struct inode **inode,
228 struct ptlrpc_request *req, int offset, struct super_block *);
229 __u32 get_uuid2int(const char *name, int len);
230 struct dentry *ll_fh_to_dentry(struct super_block *sb, __u32 *data, int len,
231 int fhtype, int parent);
232 int ll_dentry_to_fh(struct dentry *, __u32 *datap, int *lenp, int need_parent);
233 /* llite/symlink.c */
234 extern struct inode_operations ll_fast_symlink_inode_operations;
236 /* llite/llite_close.c */
237 struct ll_close_queue {
239 struct list_head lcq_list;
240 wait_queue_head_t lcq_waitq;
241 struct completion lcq_comp;
244 void llap_write_pending(struct inode *inode, struct ll_async_page *llap);
245 void llap_write_complete(struct inode *inode, struct ll_async_page *llap);
246 void ll_open_complete(struct inode *inode);
247 int ll_is_inode_dirty(struct inode *inode);
248 void ll_try_done_writing(struct inode *inode);
249 void ll_queue_done_writing(struct inode *inode);
250 void ll_close_thread_shutdown(struct ll_close_queue *lcq);
251 int ll_close_thread_start(struct ll_close_queue **lcq_ret);
254 #define LL_SUPER_MAGIC 0x0BD00BD0
256 #define LL_SBI_NOLCK 0x1
257 #define LL_SBI_READAHEAD 0x2
259 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
260 #define ll_s2sbi(sb) ((struct ll_sb_info *)((sb)->s_fs_info))
261 void __d_rehash(struct dentry * entry, int lock);
262 static inline __u64 ll_ts2u64(struct timespec *time)
264 __u64 t = time->tv_sec;
268 #define ll_s2sbi(sb) ((struct ll_sb_info *)((sb)->u.generic_sbp))
269 static inline __u64 ll_ts2u64(time_t *time)
275 /* don't need an addref as the sb_info should be holding one */
276 static inline struct obd_export *ll_s2obdexp(struct super_block *sb)
278 return ll_s2sbi(sb)->ll_osc_exp;
281 /* don't need an addref as the sb_info should be holding one */
282 static inline struct obd_export *ll_s2mdcexp(struct super_block *sb)
284 return ll_s2sbi(sb)->ll_mdc_exp;
287 static inline struct client_obd *sbi2mdc(struct ll_sb_info *sbi)
289 struct obd_device *obd = sbi->ll_mdc_exp->exp_obd;
295 // FIXME: replace the name of this with LL_SB to conform to kernel stuff
296 static inline struct ll_sb_info *ll_i2sbi(struct inode *inode)
298 return ll_s2sbi(inode->i_sb);
301 static inline struct obd_export *ll_i2obdexp(struct inode *inode)
303 return ll_s2obdexp(inode->i_sb);
306 static inline struct obd_export *ll_i2mdcexp(struct inode *inode)
308 return ll_s2mdcexp(inode->i_sb);
311 static inline void ll_inode2fid(struct ll_fid *fid, struct inode *inode)
313 mdc_pack_fid(fid, inode->i_ino, inode->i_generation,
314 inode->i_mode & S_IFMT);
317 static inline int ll_mds_max_easize(struct super_block *sb)
319 return sbi2mdc(ll_s2sbi(sb))->cl_max_mds_easize;
322 static inline __u64 ll_file_maxbytes(struct inode *inode)
324 return ll_i2info(inode)->lli_maxbytes;
327 #endif /* LLITE_INTERNAL_H */