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
13 #include <linux/lustre_debug.h>
14 #include <linux/lustre_audit.h>
16 /* default to about 40meg of readahead on a given system. That much tied
17 * up in 512k readahead requests serviced at 40ms each is about 1GB/s. */
18 #define SBI_DEFAULT_RA_MAX ((40 << 20) >> PAGE_CACHE_SHIFT)
23 RA_STAT_DISTANT_READPAGE,
24 RA_STAT_MISS_IN_WINDOW,
30 RA_STAT_MAX_IN_FLIGHT,
35 unsigned long ra_cur_pages;
36 unsigned long ra_max_pages;
37 unsigned long ra_stats[_NR_RA_STAT];
40 /* after roughly how long should we remove an inactive mount? */
41 #define GNS_MOUNT_TIMEOUT 120
43 /* how often should the GNS timer look for mounts to cleanup? */
44 #define GNS_TICK_TIMEOUT 1
46 /* how many times GNS will try to wait for 1 second for mount */
47 #define GNS_WAIT_ATTEMPTS 10
50 /* this protects pglist and max_r_a_pages. It isn't safe to grab from
51 * interrupt contexts. */
54 struct obd_uuid ll_sb_uuid;
55 struct obd_export *ll_md_exp;
56 struct obd_export *ll_dt_exp;
57 struct lov_desc ll_dt_desc;
58 struct proc_dir_entry *ll_proc_root;
59 struct lustre_id ll_rootid; /* root lustre id */
61 struct lustre_mount_data *ll_lmd;
65 struct list_head ll_conn_chain; /* per-conn chain of SBs */
67 struct hlist_head ll_orphan_dentry_list; /*please don't ask -p*/
68 struct ll_close_queue *ll_lcq;
70 struct lprocfs_stats *ll_stats; /* lprocfs stats counter */
72 unsigned long ll_pglist_gen;
73 struct list_head ll_pglist;
75 struct ll_ra_info ll_ra_info;
77 unsigned int ll_remote; /* remote client? */
80 /* times spent waiting for locks in each call site. These are
81 * all protected by the ll_lock */
82 struct obd_service_time ll_read_stime;
83 struct obd_service_time ll_write_stime;
84 struct obd_service_time ll_grouplock_stime;
85 struct obd_service_time ll_seek_stime;
86 struct obd_service_time ll_setattr_stime;
87 struct obd_service_time ll_brw_stime;
88 // struct obd_service_time ll_done_stime;
90 int ll_config_version; /* last-applied update */
92 /* list of GNS mounts; protected by the dcache_lock */
93 struct list_head ll_mnt_list;
95 struct semaphore ll_gns_sem;
96 spinlock_t ll_gns_lock;
97 wait_queue_head_t ll_gns_waitq;
98 atomic_t ll_gns_enabled;
100 struct timer_list ll_gns_timer;
101 struct list_head ll_gns_sbi_head;
102 struct completion ll_gns_mount_finished;
103 struct dentry *ll_gns_pending_dentry;
105 unsigned long ll_gns_tick;
106 unsigned long ll_gns_timeout;
109 char ll_gns_upcall[PATH_MAX];
111 /* mount object entry name */
112 char ll_gns_oname[PATH_MAX];
113 void *ll_crypto_info;
115 /* TODO: to support multi mount for capability */
116 struct list_head ll_capa_list;
117 struct timer_list ll_capa_timer;
121 struct completion gc_starting;
122 struct completion gc_finishing;
125 /* mounting states */
126 #define LL_GNS_IDLE (1 << 0)
127 #define LL_GNS_MOUNTING (1 << 1)
128 #define LL_GNS_FINISHED (1 << 2)
130 /* mounts checking flags */
131 #define LL_GNS_UMOUNT (1 << 0)
132 #define LL_GNS_CHECK (1 << 1)
135 * per file-descriptor read-ahead data.
137 struct ll_readahead_state {
140 * index of the last page that read(2) needed and that wasn't in the
141 * cache. Used by ras_update() to detect seeks.
143 * XXX nikita: if access seeks into cached region, Lustre doesn't see
146 unsigned long ras_last_readpage;
148 * number of pages read after last read-ahead window reset. As window
149 * is reset on each seek, this is effectively a number of consecutive
150 * accesses. Maybe ->ras_accessed_in_window is better name.
152 * XXX nikita: window is also reset (by ras_update()) when Lustre
153 * believes that memory pressure evicts read-ahead pages. In that
154 * case, it probably doesn't make sense to expand window to
155 * PTLRPC_MAX_BRW_PAGES on the third access.
157 unsigned long ras_consecutive;
159 * Parameters of current read-ahead window. Handled by
160 * ras_update(). On the initial access to the file or after a seek,
161 * window is reset to 0. After 3 consecutive accesses, window is
162 * expanded to PTLRPC_MAX_BRW_PAGES. Afterwards, window is enlarged by
163 * PTLRPC_MAX_BRW_PAGES chunks up to ->ra_max_pages.
165 unsigned long ras_window_start, ras_window_len;
167 * Where next read-ahead should start at. This lies within read-ahead
168 * window. Read-ahead window is read in pieces rather than at once
169 * because: 1. lustre limits total number of pages under read-ahead by
170 * ->ra_max_pages (see ll_ra_count_get()), 2. client cannot read pages
171 * not covered by DLM lock.
173 unsigned long ras_next_readahead;
177 extern kmem_cache_t *ll_file_data_slab;
178 extern kmem_cache_t *ll_intent_slab;
180 struct lustre_handle;
182 struct ll_file_data {
183 struct ll_readahead_state fd_ras;
186 struct lustre_handle fd_cwlockh;
187 unsigned long fd_gid;
190 struct lov_stripe_md;
192 extern spinlock_t inode_lock;
194 extern void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi);
195 extern struct proc_dir_entry *proc_lustre_fs_root;
197 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
198 # define hlist_del_init list_del_init
201 static inline struct inode *ll_info2i(struct ll_inode_info *lli)
203 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
204 return &lli->lli_vfs_inode;
206 return list_entry(lli, struct inode, u.generic_ip);
212 struct inode *icbd_parent;
213 struct dentry **icbd_childp;
217 #define LLAP_MAGIC 98764321
219 struct ll_async_page {
222 struct page *llap_page;
223 struct list_head llap_pending_write;
224 /* only trust these if the page lock is providing exclusion */
225 unsigned llap_write_queued:1,
226 llap_defer_uptodate:1,
230 /* used to find proper capability */
233 struct list_head llap_proc_item;
237 LLAP_ORIGIN_UNKNOWN = 0,
238 LLAP_ORIGIN_READPAGE,
239 LLAP_ORIGIN_READAHEAD,
240 LLAP_ORIGIN_COMMIT_WRITE,
241 LLAP_ORIGIN_WRITEPAGE,
248 #define REMOTE_ACL_HASHSIZE 16
251 struct list_head ra_perm_cache[REMOTE_ACL_HASHSIZE];
253 /* we use one sem per inode, it's kind of coarse: one user must
254 * wait if another user is updating the perm on this inode. but
255 * I guess this is fine is real world usage.
257 struct semaphore ra_update_sem;
260 struct lustre_remote_perm {
261 struct list_head lrp_list;
262 uid_t lrp_auth_uid; /* authenticated uid */
263 gid_t lrp_auth_gid; /* authenticated gid */
264 uint16_t lrp_perm; /* permission bits */
265 uint16_t lrp_valid:1, /* lrp_perm is valid */
266 lrp_setuid:1, /* allow setuid */
267 lrp_setgid:1; /* allow setgid */
268 struct list_head lrp_setxid_perms; /* setxid perms list */
271 struct remote_perm_setxid {
272 struct list_head list; /* permission list */
278 /* llite/lproc_llite.c */
279 int lprocfs_register_mountpoint(struct proc_dir_entry *parent,
280 struct super_block *sb, char *lov,
282 void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi);
285 extern struct file_operations ll_dir_operations;
286 extern struct inode_operations ll_dir_inode_operations;
289 int ll_objects_destroy(struct ptlrpc_request *request,
290 struct inode *dir, int offset);
291 struct inode *ll_iget(struct super_block *sb, ino_t hash,
292 struct lustre_md *lic);
293 struct dentry *ll_find_alias(struct inode *, struct dentry *);
294 int ll_mdc_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *,
295 void *data, int flag);
297 int ll_prepare_write(struct file *, struct page *, unsigned from, unsigned to);
298 int ll_commit_write(struct file *, struct page *, unsigned from, unsigned to);
299 int ll_writepage(struct page *page);
300 void ll_inode_fill_obdo(struct inode *inode, int cmd, struct obdo *oa);
301 void ll_ap_completion(void *data, int cmd, struct obdo *oa, int rc);
302 void ll_removepage(struct page *page);
303 int ll_readpage(struct file *file, struct page *page);
304 struct ll_async_page *llap_from_cookie(void *cookie);
305 struct ll_async_page *llap_from_page(struct page *page, unsigned origin);
306 void ll_readahead_init(struct inode *inode, struct ll_readahead_state *ras);
308 struct lpage_data *lpd_cast_private(struct page *page);
310 void ll_ra_accounting(struct page *page, struct address_space *mapping);
311 void ll_truncate(struct inode *inode);
314 extern struct file_operations ll_file_operations;
315 extern struct inode_operations ll_file_inode_operations;
316 int ll_md_real_close(struct obd_export *md_exp,
317 struct inode *inode, int flags);
318 extern int ll_inode_revalidate_it(struct dentry *);
319 int ll_setxattr(struct dentry *, const char *, const void *,
321 int ll_getxattr(struct dentry *, const char *, void *, size_t);
322 int ll_listxattr(struct dentry *, char *, size_t);
323 int ll_removexattr(struct dentry *, const char *);
324 extern int ll_inode_permission(struct inode *, int, struct nameidata *);
325 int ll_get_acl(struct inode *, struct posix_acl **acl,
326 struct ptlrpc_request **req);
327 int ll_refresh_lsm(struct inode *inode, struct lov_stripe_md *lsm);
328 int ll_extent_lock(struct ll_file_data *, struct inode *,
329 struct lov_stripe_md *, int mode, ldlm_policy_data_t *,
330 struct lustre_handle *, int ast_flags,
331 struct obd_service_time *);
332 int ll_extent_unlock(struct ll_file_data *, struct inode *,
333 struct lov_stripe_md *, int mode, struct lustre_handle *);
334 int ll_file_open(struct inode *inode, struct file *file);
335 int ll_file_release(struct inode *inode, struct file *file);
336 int ll_lsm_getattr(struct obd_export *, struct lov_stripe_md *, struct obdo *);
337 int ll_glimpse_size(struct inode *inode);
338 int ll_local_open(struct file *file, struct lookup_intent *it,
339 struct obd_client_handle *och);
340 int ll_md_close(struct obd_export *md_exp, struct inode *inode,
342 int ll_md_och_close(struct obd_export *md_exp, struct inode *inode,
343 struct obd_client_handle *och, int dirty);
344 int ll_och_fill(struct inode *inode, struct lookup_intent *it,
345 struct obd_client_handle *och);
346 int ll_set_audit(struct inode *, __u64);
347 int ll_audit_log(struct inode *, audit_op, int);
349 int ll_getxattr_internal(struct inode *inode, const char *name,
350 void *value, size_t size, __u64 valid);
351 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
352 int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat);
354 void ll_stime_record(struct ll_sb_info *sbi, struct timeval *start,
355 struct obd_service_time *stime);
358 void ll_capa_timer_callback(unsigned long unused);
359 int ll_capa_start_thread(void);
360 void ll_capa_stop_thread(void);
361 int ll_set_och_capa(struct inode *inode, struct lookup_intent *it,
362 struct obd_client_handle *och);
365 void ll_intent_drop_lock(struct lookup_intent *);
366 void ll_intent_release(struct lookup_intent *);
367 int ll_intent_alloc(struct lookup_intent *);
368 void ll_intent_free(struct lookup_intent *it);
369 extern void ll_set_dd(struct dentry *de);
370 void ll_unhash_aliases(struct inode *);
371 void ll_frob_intent(struct lookup_intent **itp, struct lookup_intent *deft);
372 void ll_lookup_finish_locks(struct lookup_intent *it, struct dentry *dentry);
373 int revalidate_it_finish(struct ptlrpc_request *request, int offset,
374 struct lookup_intent *it, struct dentry *de);
377 /* llite/llite_gns.c */
378 int ll_gns_start_thread(void);
379 void ll_gns_stop_thread(void);
381 int ll_gns_mount_object(struct dentry *dentry,
382 struct vfsmount *mnt);
383 int ll_gns_umount_object(struct vfsmount *mnt);
385 int ll_gns_check_mounts(struct ll_sb_info *sbi,
388 void ll_gns_timer_callback(unsigned long data);
389 void ll_gns_add_timer(struct ll_sb_info *sbi);
390 void ll_gns_del_timer(struct ll_sb_info *sbi);
392 /* llite/llite_lib.c */
393 extern struct super_operations lustre_super_operations;
395 char *ll_read_opt(const char *opt, char *data);
396 int ll_set_opt(const char *opt, char *data, int fl);
397 void ll_options(char *options, char **ost, char **mds, char **gss,
398 char **mds_sec, char **oss_sec, int *async, int *flags);
399 void ll_lli_init(struct ll_inode_info *lli);
400 int ll_fill_super(struct super_block *sb, void *data, int silent);
401 int lustre_fill_super(struct super_block *sb, void *data, int silent);
402 void lustre_put_super(struct super_block *sb);
403 struct inode *ll_inode_from_lock(struct ldlm_lock *lock);
404 void ll_clear_inode(struct inode *inode);
405 int ll_attr2inode(struct inode *inode, struct iattr *attr, int trunc);
406 int ll_setattr_raw(struct inode *inode, struct iattr *attr);
407 int ll_setattr(struct dentry *de, struct iattr *attr);
408 int ll_statfs(struct super_block *sb, struct kstatfs *sfs);
409 int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
410 unsigned long maxage);
411 void ll_update_inode(struct inode *inode, struct lustre_md *);
412 int ll_fetch_remote_perm(struct inode *inode, struct ptlrpc_request *req,
414 int it_disposition(struct lookup_intent *it, int flag);
415 void it_set_disposition(struct lookup_intent *it, int flag);
416 void ll_read_inode2(struct inode *inode, void *opaque);
417 void ll_delete_inode(struct inode *inode);
418 int ll_iocontrol(struct inode *inode, struct file *file,
419 unsigned int cmd, unsigned long arg);
420 void ll_umount_begin(struct super_block *sb);
421 int ll_prep_inode(struct obd_export *, struct obd_export *, struct inode **inode,
422 struct ptlrpc_request *req, int offset, struct super_block *);
423 __u32 get_uuid2int(const char *name, int len);
424 struct dentry *ll_fh_to_dentry(struct super_block *sb, __u32 *data, int len,
425 int fhtype, int parent);
426 int ll_dentry_to_fh(struct dentry *, __u32 *datap, int *lenp, int need_parent);
427 int null_if_equal(struct ldlm_lock *lock, void *data);
428 int ll_process_config_update(struct ll_sb_info *sbi, int clean);
429 int ll_show_options(struct seq_file *m, struct vfsmount *mnt);
430 int ll_flush_cred(struct inode *inode);
432 int ll_remote_acl_permission(struct inode *inode, int mode);
433 int ll_remote_acl_update(struct inode *inode, struct mds_remote_perm *perm);
434 void ll_inode_invalidate_acl(struct inode *inode);
436 /* llite/special.c */
437 extern struct inode_operations ll_special_inode_operations;
438 extern struct file_operations ll_special_chr_inode_fops;
439 extern struct file_operations ll_special_chr_file_fops;
440 extern struct file_operations ll_special_blk_inode_fops;
441 extern struct file_operations ll_special_fifo_inode_fops;
442 extern struct file_operations ll_special_fifo_file_fops;
443 extern struct file_operations ll_special_sock_inode_fops;
445 /* llite/symlink.c */
446 extern struct inode_operations ll_fast_symlink_inode_operations;
448 /* llite/llite_close.c */
449 struct ll_close_queue {
451 struct list_head lcq_list;
452 wait_queue_head_t lcq_waitq;
453 struct completion lcq_comp;
456 void llap_write_pending(struct inode *inode, struct ll_async_page *llap);
457 void llap_write_complete(struct inode *inode, struct ll_async_page *llap);
458 void ll_open_complete(struct inode *inode);
459 int ll_is_inode_dirty(struct inode *inode);
460 void ll_try_done_writing(struct inode *inode);
461 void ll_queue_done_writing(struct inode *inode);
462 void ll_close_thread_stop(struct ll_close_queue *lcq);
463 int ll_close_thread_start(struct ll_close_queue **lcq_ret);
466 /* llite/llite_mmap.c */
467 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
468 typedef struct rb_root rb_root_t;
469 typedef struct rb_node rb_node_t;
472 struct ll_lock_tree_node {
474 struct list_head lt_locked_item;
476 ldlm_policy_data_t lt_policy;
477 struct lustre_handle lt_lockh;
481 struct ll_lock_tree {
483 struct list_head lt_locked_list;
484 struct ll_file_data *lt_fd;
486 int ll_teardown_mmaps(struct address_space *mapping, __u64 first,
488 int ll_file_mmap(struct file * file, struct vm_area_struct * vma);
489 struct ll_lock_tree_node * ll_node_from_inode(struct inode *inode, __u64 start,
490 __u64 end, ldlm_mode_t mode);
491 int ll_tree_lock(struct ll_lock_tree *tree,
492 struct ll_lock_tree_node *first_node, struct inode *inode,
493 const char *buf, size_t count, int ast_flags);
494 int ll_tree_unlock(struct ll_lock_tree *tree, struct inode *inode);
496 int ll_get_fid(struct obd_export *exp, struct lustre_id *idp,
497 char *filename, struct lustre_id *ret);
500 #define LL_SBI_NOLCK 0x1
501 #define LL_SBI_READAHEAD 0x2
502 #define LL_SUPER_MAGIC 0x0BD00BD0
503 #define LL_MAX_BLKSIZE (4UL * 1024 * 1024)
505 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
506 #define ll_s2sbi(sb) ((struct ll_sb_info *)((sb)->s_fs_info))
507 #define ll_set_sbi(sb, sbi) ((sb)->s_fs_info = sbi)
508 static inline __u64 ll_ts2u64(struct timespec *time)
510 __u64 t = time->tv_sec;
514 #define ll_s2sbi(sb) ((struct ll_sb_info *)((sb)->u.generic_sbp))
515 #define ll_set_sbi(sb, sbi) ((sb)->u.generic_sbp = sbi)
516 static inline __u64 ll_ts2u64(time_t *time)
522 /* don't need an addref as the sb_info should be holding one */
523 static inline struct obd_export *ll_s2dtexp(struct super_block *sb)
525 return ll_s2sbi(sb)->ll_dt_exp;
528 /* don't need an addref as the sb_info should be holding one */
529 static inline struct obd_export *ll_s2mdexp(struct super_block *sb)
531 return ll_s2sbi(sb)->ll_md_exp;
534 static inline struct client_obd *sbi2md(struct ll_sb_info *sbi)
536 struct obd_device *obd = sbi->ll_md_exp->exp_obd;
542 // FIXME: replace the name of this with LL_SB to conform to kernel stuff
543 static inline struct ll_sb_info *ll_i2sbi(struct inode *inode)
545 return ll_s2sbi(inode->i_sb);
548 static inline struct obd_export *ll_i2dtexp(struct inode *inode)
550 return ll_s2dtexp(inode->i_sb);
553 static inline struct obd_export *ll_i2mdexp(struct inode *inode)
555 return ll_s2mdexp(inode->i_sb);
557 static inline int ll_mds_max_easize(struct super_block *sb)
559 return sbi2md(ll_s2sbi(sb))->cl_max_mds_easize;
562 static inline __u64 ll_file_maxbytes(struct inode *inode)
564 return ll_i2info(inode)->lli_maxbytes;
569 ll_inode2id(struct lustre_id *id, struct inode *inode)
571 struct lustre_id *lid = &ll_i2info(inode)->lli_id;
573 mdc_pack_id(id, inode->i_ino, inode->i_generation,
574 (inode->i_mode & S_IFMT), id_group(lid),
579 ll_inode2mdc_data(struct mdc_op_data *op_data,
583 obd_valid newvalid = 0;
585 LASSERT(op_data != NULL);
586 LASSERT(inode != NULL);
588 /* put object id there all the time. */
589 if (valid & OBD_MD_FLID) {
590 ll_inode2id(&op_data->id1, inode);
591 newvalid |= OBD_MD_FLID;
594 /* it could be directory with mea */
595 if (valid & OBD_MD_MEA) {
596 op_data->mea1 = ll_i2info(inode)->lli_mea;
598 newvalid |= OBD_MD_MEA;
601 if (valid & OBD_MD_FLSIZE) {
602 op_data->size = inode->i_size;
603 newvalid |= OBD_MD_FLSIZE;
605 if (valid & OBD_MD_FLBLOCKS) {
606 op_data->blocks = inode->i_blocks;
607 newvalid |= OBD_MD_FLBLOCKS;
609 if (valid & OBD_MD_FLFLAGS) {
610 op_data->flags = inode->i_flags;
611 newvalid |= OBD_MD_FLFLAGS;
613 if (valid & OBD_MD_FLATIME) {
614 op_data->atime = LTIME_S(inode->i_atime);
615 newvalid |= OBD_MD_FLATIME;
617 if (valid & OBD_MD_FLMTIME) {
618 op_data->mtime = LTIME_S(inode->i_mtime);
619 newvalid |= OBD_MD_FLMTIME;
621 if (valid & OBD_MD_FLCTIME) {
622 op_data->ctime = LTIME_S(inode->i_ctime);
623 newvalid |= OBD_MD_FLCTIME;
625 if (valid & OBD_MD_FLEPOCH) {
626 op_data->io_epoch = ll_i2info(inode)->lli_io_epoch;
627 newvalid |= OBD_MD_FLEPOCH;
630 if (valid & OBD_MD_FLTYPE) {
631 op_data->mode = (op_data->mode & S_IALLUGO) |
632 (inode->i_mode & S_IFMT);
633 newvalid |= OBD_MD_FLTYPE;
636 if (valid & OBD_MD_FLMODE) {
637 op_data->mode = (op_data->mode & S_IFMT) |
638 (inode->i_mode & S_IALLUGO);
639 newvalid |= OBD_MD_FLMODE;
642 op_data->valid |= newvalid;
646 ll_prepare_mdc_data(struct mdc_op_data *op_data, struct inode *i1,
647 struct inode *i2, const char *name, int namelen,
650 LASSERT(op_data != NULL);
653 ll_inode2id(&op_data->id1, i1);
655 /* it could be directory with mea */
656 op_data->mea1 = ll_i2info(i1)->lli_mea;
659 ll_inode2id(&op_data->id2, i2);
660 op_data->mea2 = ll_i2info(i2)->lli_mea;
664 op_data->name = name;
665 op_data->namelen = namelen;
666 op_data->create_mode = mode;
667 op_data->mod_time = LTIME_S(CURRENT_TIME);
670 struct crypto_helper_ops {
671 int (*init_it_key)(struct inode *inode, struct lookup_intent *it);
672 int (*create_key)(struct inode *dir, mode_t mode, void **key,
674 int (*get_mac)(struct inode *inode, struct iattr *iattr, void*value,
675 int size, void **key, int* key_size);
676 int (*decrypt_key)(struct inode *inode, struct lookup_intent *it);
677 int (*init_inode_key)(struct inode *inode, void *md_key);
678 int (*destroy_key)(struct inode *inode);
681 /*llite crypto ops for crypto api*/
682 struct ll_crypto_info {
683 struct obd_export *ll_gt_exp;
684 struct list_head ll_cops_list;
685 struct crypto_helper_ops *ll_cops;
688 #define ll_page2key(page) ((ll_i2info(page->mapping->host))->lli_key_info)
689 static inline struct ll_crypto_info* ll_s2crpi(struct super_block *sb)
691 return (struct ll_crypto_info*)ll_s2sbi(sb)->ll_crypto_info;
693 static inline struct ll_crypto_info* ll_i2crpi(struct inode *inode)
695 return (struct ll_crypto_info*)ll_i2sbi(inode)->ll_crypto_info;
698 static inline struct crypto_helper_ops* ll_i2crpops(struct inode *inode)
700 return ll_i2crpi(inode)->ll_cops;
703 static inline struct crypto_helper_ops* ll_s2crpops(struct super_block *sb)
705 return ll_s2crpi(sb)->ll_cops;
708 static inline struct obd_export *ll_s2gsexp(struct super_block *sb)
710 struct ll_crypto_info *llci = ll_s2crpi(sb);
712 return llci->ll_gt_exp;
715 static inline struct obd_export *ll_i2gsexp(struct inode *inode)
717 return ll_s2gsexp(inode->i_sb);
721 int ll_crypto_init_it_key(struct inode *inode, struct lookup_intent *it)
723 struct ll_crypto_info *lci = ll_i2crpi(inode);
725 struct crypto_helper_ops *ops = lci->ll_cops;;
726 if (ops && ops->init_it_key)
727 return ops->init_it_key(inode, it);
733 int ll_crypto_create_key(struct inode *inode, mode_t mode, void **key,
736 struct ll_crypto_info *lci = ll_i2crpi(inode);
738 struct crypto_helper_ops *ops = lci->ll_cops;;
739 if (ops && ops->create_key)
740 return ops->create_key(inode, mode, key, key_size);
746 int ll_crypto_get_mac(struct inode *inode, struct iattr *attr, void *acl,
747 int acl_size, void **mac, int *mac_size)
749 struct ll_crypto_info *lci = ll_i2crpi(inode);
751 struct crypto_helper_ops *ops = lci->ll_cops;
752 if (ops && ops->get_mac)
753 return ops->get_mac(inode, attr, acl, acl_size,
760 int ll_crypto_decrypt_key(struct inode *inode, struct lookup_intent *it)
762 struct ll_crypto_info *lci = ll_i2crpi(inode);
764 struct crypto_helper_ops *ops = lci->ll_cops;
765 if (ops && ops->decrypt_key)
766 return ops->decrypt_key(inode, it);
772 int ll_crypto_init_inode_key(struct inode *inode, void *md_key)
774 struct ll_crypto_info *lci = ll_i2crpi(inode);
776 struct crypto_helper_ops *ops = lci->ll_cops;
777 if (ops && ops->init_inode_key)
778 return ops->init_inode_key(inode, md_key);
784 int ll_crypto_destroy_inode_key(struct inode *inode)
786 struct ll_crypto_info *lci = ll_i2crpi(inode);
788 struct crypto_helper_ops *ops = lci->ll_cops;
789 if (ops && ops->destroy_key)
790 return ops->destroy_key(inode);
795 int lustre_init_crypto(struct super_block *sb, char *gkc,
796 struct obd_connect_data *data, int async);
797 int lustre_destroy_crypto(struct super_block *sb);
798 int ll_set_sb_gksinfo(struct super_block *sb, char *type);
799 /* pass this flag to ll_md_real_close() to send close rpc right away */
800 #define FMODE_SYNC 00000010
801 #endif /* LLITE_INTERNAL_H */