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;
116 /* TODO: to support multi mount for capability */
117 struct list_head ll_capa_list;
118 struct timer_list ll_capa_timer;
123 struct completion gc_starting;
124 struct completion gc_finishing;
127 /* mounting states */
128 #define LL_GNS_IDLE (1 << 0)
129 #define LL_GNS_MOUNTING (1 << 1)
130 #define LL_GNS_FINISHED (1 << 2)
132 /* mounts checking flags */
133 #define LL_GNS_UMOUNT (1 << 0)
134 #define LL_GNS_CHECK (1 << 1)
137 * per file-descriptor read-ahead data.
139 struct ll_readahead_state {
142 * index of the last page that read(2) needed and that wasn't in the
143 * cache. Used by ras_update() to detect seeks.
145 * XXX nikita: if access seeks into cached region, Lustre doesn't see
148 unsigned long ras_last_readpage;
150 * number of pages read after last read-ahead window reset. As window
151 * is reset on each seek, this is effectively a number of consecutive
152 * accesses. Maybe ->ras_accessed_in_window is better name.
154 * XXX nikita: window is also reset (by ras_update()) when Lustre
155 * believes that memory pressure evicts read-ahead pages. In that
156 * case, it probably doesn't make sense to expand window to
157 * PTLRPC_MAX_BRW_PAGES on the third access.
159 unsigned long ras_consecutive;
161 * Parameters of current read-ahead window. Handled by
162 * ras_update(). On the initial access to the file or after a seek,
163 * window is reset to 0. After 3 consecutive accesses, window is
164 * expanded to PTLRPC_MAX_BRW_PAGES. Afterwards, window is enlarged by
165 * PTLRPC_MAX_BRW_PAGES chunks up to ->ra_max_pages.
167 unsigned long ras_window_start, ras_window_len;
169 * Where next read-ahead should start at. This lies within read-ahead
170 * window. Read-ahead window is read in pieces rather than at once
171 * because: 1. lustre limits total number of pages under read-ahead by
172 * ->ra_max_pages (see ll_ra_count_get()), 2. client cannot read pages
173 * not covered by DLM lock.
175 unsigned long ras_next_readahead;
179 extern kmem_cache_t *ll_file_data_slab;
180 extern kmem_cache_t *ll_intent_slab;
182 struct lustre_handle;
184 struct ll_file_data {
185 struct ll_readahead_state fd_ras;
188 struct lustre_handle fd_cwlockh;
189 unsigned long fd_gid;
192 struct lov_stripe_md;
194 extern spinlock_t inode_lock;
196 extern void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi);
197 extern struct proc_dir_entry *proc_lustre_fs_root;
199 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
200 # define hlist_del_init list_del_init
203 static inline struct inode *ll_info2i(struct ll_inode_info *lli)
205 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
206 return &lli->lli_vfs_inode;
208 return list_entry(lli, struct inode, u.generic_ip);
214 struct inode *icbd_parent;
215 struct dentry **icbd_childp;
219 #define LLAP_MAGIC 98764321
221 struct ll_async_page {
224 struct page *llap_page;
225 struct list_head llap_pending_write;
226 /* only trust these if the page lock is providing exclusion */
227 unsigned llap_write_queued:1,
228 llap_defer_uptodate:1,
232 /* used to find proper capability */
235 struct list_head llap_proc_item;
239 LLAP_ORIGIN_UNKNOWN = 0,
240 LLAP_ORIGIN_READPAGE,
241 LLAP_ORIGIN_READAHEAD,
242 LLAP_ORIGIN_COMMIT_WRITE,
243 LLAP_ORIGIN_WRITEPAGE,
250 #define REMOTE_ACL_HASHSIZE 16
253 struct list_head ra_perm_cache[REMOTE_ACL_HASHSIZE];
255 /* we use one sem per inode, it's kind of coarse: one user must
256 * wait if another user is updating the perm on this inode. but
257 * I guess this is fine is real world usage.
259 struct semaphore ra_update_sem;
262 struct lustre_remote_perm {
263 struct list_head lrp_list;
264 uid_t lrp_auth_uid; /* authenticated uid */
265 gid_t lrp_auth_gid; /* authenticated gid */
266 uint16_t lrp_perm; /* permission bits */
267 uint16_t lrp_valid:1, /* lrp_perm is valid */
268 lrp_setuid:1, /* allow setuid */
269 lrp_setgid:1; /* allow setgid */
270 struct list_head lrp_setxid_perms; /* setxid perms list */
273 struct remote_perm_setxid {
274 struct list_head list; /* permission list */
280 /* llite/lproc_llite.c */
281 int lprocfs_register_mountpoint(struct proc_dir_entry *parent,
282 struct super_block *sb, char *lov,
284 void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi);
287 extern struct file_operations ll_dir_operations;
288 extern struct inode_operations ll_dir_inode_operations;
291 int ll_objects_destroy(struct ptlrpc_request *request,
292 struct inode *dir, int offset);
293 struct inode *ll_iget(struct super_block *sb, ino_t hash,
294 struct lustre_md *lic);
295 struct dentry *ll_find_alias(struct inode *, struct dentry *);
296 int ll_mdc_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *,
297 void *data, int flag);
299 int ll_prepare_write(struct file *, struct page *, unsigned from, unsigned to);
300 int ll_commit_write(struct file *, struct page *, unsigned from, unsigned to);
301 int ll_writepage(struct page *page);
302 void ll_inode_fill_obdo(struct inode *inode, int cmd, struct obdo *oa);
303 void ll_ap_completion(void *data, int cmd, struct obdo *oa, int rc);
304 void ll_removepage(struct page *page);
305 int ll_readpage(struct file *file, struct page *page);
306 struct ll_async_page *llap_from_cookie(void *cookie);
307 struct ll_async_page *llap_from_page(struct page *page, unsigned origin);
308 void ll_readahead_init(struct inode *inode, struct ll_readahead_state *ras);
310 struct lpage_data *lpd_cast_private(struct page *page);
312 void ll_ra_accounting(struct page *page, struct address_space *mapping);
313 void ll_truncate(struct inode *inode);
316 extern struct file_operations ll_file_operations;
317 extern struct inode_operations ll_file_inode_operations;
318 int ll_md_real_close(struct obd_export *md_exp,
319 struct inode *inode, int flags);
320 extern int ll_inode_revalidate_it(struct dentry *);
321 int ll_setxattr(struct dentry *, const char *, const void *,
323 int ll_getxattr(struct dentry *, const char *, void *, size_t);
324 int ll_listxattr(struct dentry *, char *, size_t);
325 int ll_removexattr(struct dentry *, const char *);
326 extern int ll_inode_permission(struct inode *, int, struct nameidata *);
327 int ll_get_acl(struct inode *, struct posix_acl **acl,
328 struct ptlrpc_request **req);
329 int ll_refresh_lsm(struct inode *inode, struct lov_stripe_md *lsm);
330 int ll_extent_lock(struct ll_file_data *, struct inode *,
331 struct lov_stripe_md *, int mode, ldlm_policy_data_t *,
332 struct lustre_handle *, int ast_flags,
333 struct obd_service_time *);
334 int ll_extent_unlock(struct ll_file_data *, struct inode *,
335 struct lov_stripe_md *, int mode, struct lustre_handle *);
336 int ll_file_open(struct inode *inode, struct file *file);
337 int ll_file_release(struct inode *inode, struct file *file);
338 int ll_lsm_getattr(struct obd_export *, struct lov_stripe_md *, struct obdo *);
339 int ll_glimpse_size(struct inode *inode);
340 int ll_local_open(struct file *file, struct lookup_intent *it,
341 struct obd_client_handle *och);
342 int ll_md_close(struct obd_export *md_exp, struct inode *inode,
344 int ll_md_och_close(struct obd_export *md_exp, struct inode *inode,
345 struct obd_client_handle *och, int dirty, __u64 epoch);
346 int ll_och_fill(struct inode *inode, struct lookup_intent *it,
347 struct obd_client_handle *och);
348 int ll_set_audit(struct inode *, __u64);
349 int ll_audit_log(struct inode *, audit_op, int);
351 int ll_getxattr_internal(struct inode *inode, const char *name,
352 void *value, size_t size, __u64 valid);
353 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
354 int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat);
356 void ll_stime_record(struct ll_sb_info *sbi, struct timeval *start,
357 struct obd_service_time *stime);
360 int ll_capa_thread_start(void);
361 void ll_capa_thread_stop(void);
363 void ll_capa_timer_callback(unsigned long unused);
364 int ll_set_capa(struct inode *inode, struct lookup_intent *it,
365 struct obd_client_handle *och);
366 int ll_set_trunc_capa(struct ptlrpc_request *req, int offset,
367 struct inode *inode);
368 struct obd_capa *ll_get_capa(struct inode *inode, uid_t uid, int op);
371 void ll_intent_drop_lock(struct lookup_intent *);
372 void ll_intent_release(struct lookup_intent *);
373 int ll_intent_alloc(struct lookup_intent *);
374 void ll_intent_free(struct lookup_intent *it);
375 extern void ll_set_dd(struct dentry *de);
376 void ll_unhash_aliases(struct inode *);
377 void ll_frob_intent(struct lookup_intent **itp, struct lookup_intent *deft);
378 void ll_lookup_finish_locks(struct lookup_intent *it, struct dentry *dentry);
379 int revalidate_it_finish(struct ptlrpc_request *request, int offset,
380 struct lookup_intent *it, struct dentry *de);
383 /* llite/llite_gns.c */
384 int ll_gns_thread_start(void);
385 void ll_gns_thread_stop(void);
387 int ll_gns_mount_object(struct dentry *dentry,
388 struct vfsmount *mnt);
389 int ll_gns_umount_object(struct vfsmount *mnt);
391 int ll_gns_check_mounts(struct ll_sb_info *sbi,
394 void ll_gns_timer_callback(unsigned long data);
395 void ll_gns_add_timer(struct ll_sb_info *sbi);
396 void ll_gns_del_timer(struct ll_sb_info *sbi);
398 /* llite/llite_lib.c */
399 extern struct super_operations lustre_super_operations;
401 char *ll_read_opt(const char *opt, char *data);
402 int ll_set_opt(const char *opt, char *data, int fl);
403 void ll_options(char *options, char **ost, char **mds, char **gss,
404 char **mds_sec, char **oss_sec, int *async, int *flags);
405 void ll_lli_init(struct ll_inode_info *lli);
406 int ll_fill_super(struct super_block *sb, void *data, int silent);
407 int lustre_fill_super(struct super_block *sb, void *data, int silent);
408 void lustre_put_super(struct super_block *sb);
409 struct inode *ll_inode_from_lock(struct ldlm_lock *lock);
410 void ll_clear_inode(struct inode *inode);
411 int ll_attr2inode(struct inode *inode, struct iattr *attr, int trunc);
412 int ll_setattr_raw(struct inode *inode, struct iattr *attr);
413 int ll_setattr(struct dentry *de, struct iattr *attr);
414 int ll_statfs(struct super_block *sb, struct kstatfs *sfs);
415 int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
416 unsigned long maxage);
417 void ll_update_inode(struct inode *inode, struct lustre_md *);
418 int ll_fetch_remote_perm(struct inode *inode, struct ptlrpc_request *req,
420 int it_disposition(struct lookup_intent *it, int flag);
421 void it_set_disposition(struct lookup_intent *it, int flag);
422 void ll_read_inode2(struct inode *inode, void *opaque);
423 void ll_delete_inode(struct inode *inode);
424 int ll_iocontrol(struct inode *inode, struct file *file,
425 unsigned int cmd, unsigned long arg);
426 void ll_umount_begin(struct super_block *sb);
427 int ll_prep_inode(struct obd_export *, struct obd_export *, struct inode **inode,
428 struct ptlrpc_request *req, int offset, struct super_block *);
429 __u32 get_uuid2int(const char *name, int len);
430 struct dentry *ll_fh_to_dentry(struct super_block *sb, __u32 *data, int len,
431 int fhtype, int parent);
432 int ll_dentry_to_fh(struct dentry *, __u32 *datap, int *lenp, int need_parent);
433 int null_if_equal(struct ldlm_lock *lock, void *data);
434 int ll_process_config_update(struct ll_sb_info *sbi, int clean);
435 int ll_show_options(struct seq_file *m, struct vfsmount *mnt);
436 int ll_flush_cred(struct inode *inode);
438 int ll_remote_acl_permission(struct inode *inode, int mode);
439 int ll_remote_acl_update(struct inode *inode, struct mds_remote_perm *perm);
440 void ll_inode_invalidate_acl(struct inode *inode);
442 /* llite/special.c */
443 extern struct inode_operations ll_special_inode_operations;
444 extern struct file_operations ll_special_chr_inode_fops;
445 extern struct file_operations ll_special_chr_file_fops;
446 extern struct file_operations ll_special_blk_inode_fops;
447 extern struct file_operations ll_special_fifo_inode_fops;
448 extern struct file_operations ll_special_fifo_file_fops;
449 extern struct file_operations ll_special_sock_inode_fops;
451 /* llite/symlink.c */
452 extern struct inode_operations ll_fast_symlink_inode_operations;
454 /* llite/llite_close.c */
455 struct ll_close_queue {
457 struct list_head lcq_list;
458 wait_queue_head_t lcq_waitq;
459 struct completion lcq_comp;
463 void llap_write_pending(struct inode *inode, struct ll_async_page *llap);
464 void llap_write_complete(struct inode *inode, struct ll_async_page *llap);
465 void ll_open_complete(struct inode *inode);
466 int ll_is_inode_dirty(struct inode *inode);
467 void ll_try_done_writing(struct inode *inode);
468 void ll_queue_done_writing(struct inode *inode);
469 void ll_close_thread_stop(struct ll_close_queue *lcq);
470 int ll_close_thread_start(struct ll_close_queue **lcq_ret);
473 /* llite/llite_mmap.c */
474 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
475 typedef struct rb_root rb_root_t;
476 typedef struct rb_node rb_node_t;
479 struct ll_lock_tree_node {
481 struct list_head lt_locked_item;
483 ldlm_policy_data_t lt_policy;
484 struct lustre_handle lt_lockh;
488 struct ll_lock_tree {
490 struct list_head lt_locked_list;
491 struct ll_file_data *lt_fd;
493 int ll_teardown_mmaps(struct address_space *mapping, __u64 first,
495 int ll_file_mmap(struct file * file, struct vm_area_struct * vma);
496 struct ll_lock_tree_node * ll_node_from_inode(struct inode *inode, __u64 start,
497 __u64 end, ldlm_mode_t mode);
498 int ll_tree_lock(struct ll_lock_tree *tree,
499 struct ll_lock_tree_node *first_node, struct inode *inode,
500 const char *buf, size_t count, int ast_flags);
501 int ll_tree_unlock(struct ll_lock_tree *tree, struct inode *inode);
503 int ll_get_fid(struct obd_export *exp, struct lustre_id *idp,
504 char *filename, struct lustre_id *ret);
507 #define LL_SBI_NOLCK 0x1
508 #define LL_SBI_READAHEAD 0x2
509 #define LL_SBI_UMOUNT 0x4
510 #define LL_SUPER_MAGIC 0x0BD00BD0
511 #define LL_MAX_BLKSIZE (4UL * 1024 * 1024)
513 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
514 #define ll_s2sbi(sb) ((struct ll_sb_info *)((sb)->s_fs_info))
515 #define ll_set_sbi(sb, sbi) ((sb)->s_fs_info = sbi)
516 static inline __u64 ll_ts2u64(struct timespec *time)
518 __u64 t = time->tv_sec;
522 #define ll_s2sbi(sb) ((struct ll_sb_info *)((sb)->u.generic_sbp))
523 #define ll_set_sbi(sb, sbi) ((sb)->u.generic_sbp = sbi)
524 static inline __u64 ll_ts2u64(time_t *time)
530 /* don't need an addref as the sb_info should be holding one */
531 static inline struct obd_export *ll_s2dtexp(struct super_block *sb)
533 return ll_s2sbi(sb)->ll_dt_exp;
536 /* don't need an addref as the sb_info should be holding one */
537 static inline struct obd_export *ll_s2mdexp(struct super_block *sb)
539 return ll_s2sbi(sb)->ll_md_exp;
542 static inline struct client_obd *sbi2md(struct ll_sb_info *sbi)
544 struct obd_device *obd = sbi->ll_md_exp->exp_obd;
550 // FIXME: replace the name of this with LL_SB to conform to kernel stuff
551 static inline struct ll_sb_info *ll_i2sbi(struct inode *inode)
553 return ll_s2sbi(inode->i_sb);
556 static inline struct obd_export *ll_i2dtexp(struct inode *inode)
558 return ll_s2dtexp(inode->i_sb);
561 static inline struct obd_export *ll_i2mdexp(struct inode *inode)
563 return ll_s2mdexp(inode->i_sb);
565 static inline int ll_mds_max_easize(struct super_block *sb)
567 return sbi2md(ll_s2sbi(sb))->cl_max_mds_easize;
570 static inline __u64 ll_file_maxbytes(struct inode *inode)
572 return ll_i2info(inode)->lli_maxbytes;
577 ll_inode2id(struct lustre_id *id, struct inode *inode)
579 struct lustre_id *lid = &ll_i2info(inode)->lli_id;
581 mdc_pack_id(id, inode->i_ino, inode->i_generation,
582 (inode->i_mode & S_IFMT), id_group(lid),
587 ll_inode2mdc_data(struct mdc_op_data *op_data,
591 obd_valid newvalid = 0;
593 LASSERT(op_data != NULL);
594 LASSERT(inode != NULL);
596 /* put object id there all the time. */
597 if (valid & OBD_MD_FLID) {
598 ll_inode2id(&op_data->id1, inode);
599 newvalid |= OBD_MD_FLID;
602 /* it could be directory with mea */
603 if (valid & OBD_MD_MEA) {
604 op_data->mea1 = ll_i2info(inode)->lli_mea;
606 newvalid |= OBD_MD_MEA;
609 if (valid & OBD_MD_FLSIZE) {
610 op_data->size = inode->i_size;
611 newvalid |= OBD_MD_FLSIZE;
613 if (valid & OBD_MD_FLBLOCKS) {
614 op_data->blocks = inode->i_blocks;
615 newvalid |= OBD_MD_FLBLOCKS;
617 if (valid & OBD_MD_FLFLAGS) {
618 op_data->flags = inode->i_flags;
619 newvalid |= OBD_MD_FLFLAGS;
621 if (valid & OBD_MD_FLATIME) {
622 op_data->atime = LTIME_S(inode->i_atime);
623 newvalid |= OBD_MD_FLATIME;
625 if (valid & OBD_MD_FLMTIME) {
626 op_data->mtime = LTIME_S(inode->i_mtime);
627 newvalid |= OBD_MD_FLMTIME;
629 if (valid & OBD_MD_FLCTIME) {
630 op_data->ctime = LTIME_S(inode->i_ctime);
631 newvalid |= OBD_MD_FLCTIME;
633 if (valid & OBD_MD_FLTYPE) {
634 op_data->mode = (op_data->mode & S_IALLUGO) |
635 (inode->i_mode & S_IFMT);
636 newvalid |= OBD_MD_FLTYPE;
639 if (valid & OBD_MD_FLMODE) {
640 op_data->mode = (op_data->mode & S_IFMT) |
641 (inode->i_mode & S_IALLUGO);
642 newvalid |= OBD_MD_FLMODE;
645 op_data->valid |= newvalid;
649 ll_prepare_mdc_data(struct mdc_op_data *op_data, struct inode *i1,
650 struct inode *i2, const char *name, int namelen,
653 LASSERT(op_data != NULL);
656 ll_inode2id(&op_data->id1, i1);
658 /* it could be directory with mea */
659 op_data->mea1 = ll_i2info(i1)->lli_mea;
662 ll_inode2id(&op_data->id2, i2);
663 op_data->mea2 = ll_i2info(i2)->lli_mea;
667 op_data->name = name;
668 op_data->namelen = namelen;
669 op_data->create_mode = mode;
670 op_data->mod_time = LTIME_S(CURRENT_TIME);
673 struct crypto_helper_ops {
674 int (*init_it_key)(struct inode *inode, struct lookup_intent *it);
675 int (*create_key)(struct inode *dir, mode_t mode, void **key,
677 int (*get_mac)(struct inode *inode, struct iattr *iattr, void*value,
678 int size, void **key, int* key_size);
679 int (*decrypt_key)(struct inode *inode, struct lookup_intent *it);
680 int (*init_inode_key)(struct inode *inode, void *md_key);
681 int (*destroy_key)(struct inode *inode);
684 /*llite crypto ops for crypto api*/
685 struct ll_crypto_info {
686 struct obd_export *ll_gt_exp;
687 struct list_head ll_cops_list;
688 struct crypto_helper_ops *ll_cops;
691 #define ll_page2key(page) ((ll_i2info(page->mapping->host))->lli_key_info)
692 static inline struct ll_crypto_info* ll_s2crpi(struct super_block *sb)
694 return (struct ll_crypto_info*)ll_s2sbi(sb)->ll_crypto_info;
696 static inline struct ll_crypto_info* ll_i2crpi(struct inode *inode)
698 return (struct ll_crypto_info*)ll_i2sbi(inode)->ll_crypto_info;
701 static inline struct crypto_helper_ops* ll_i2crpops(struct inode *inode)
703 return ll_i2crpi(inode)->ll_cops;
706 static inline struct crypto_helper_ops* ll_s2crpops(struct super_block *sb)
708 return ll_s2crpi(sb)->ll_cops;
711 static inline struct obd_export *ll_s2gsexp(struct super_block *sb)
713 struct ll_crypto_info *llci = ll_s2crpi(sb);
715 return llci->ll_gt_exp;
718 static inline struct obd_export *ll_i2gsexp(struct inode *inode)
720 return ll_s2gsexp(inode->i_sb);
724 int ll_crypto_init_it_key(struct inode *inode, struct lookup_intent *it)
726 struct ll_crypto_info *lci = ll_i2crpi(inode);
728 struct crypto_helper_ops *ops = lci->ll_cops;;
729 if (ops && ops->init_it_key)
730 return ops->init_it_key(inode, it);
736 int ll_crypto_create_key(struct inode *inode, mode_t mode, void **key,
739 struct ll_crypto_info *lci = ll_i2crpi(inode);
741 struct crypto_helper_ops *ops = lci->ll_cops;;
742 if (ops && ops->create_key)
743 return ops->create_key(inode, mode, key, key_size);
749 int ll_crypto_get_mac(struct inode *inode, struct iattr *attr, void *acl,
750 int acl_size, void **mac, int *mac_size)
752 struct ll_crypto_info *lci = ll_i2crpi(inode);
754 struct crypto_helper_ops *ops = lci->ll_cops;
755 if (ops && ops->get_mac)
756 return ops->get_mac(inode, attr, acl, acl_size,
763 int ll_crypto_decrypt_key(struct inode *inode, struct lookup_intent *it)
765 struct ll_crypto_info *lci = ll_i2crpi(inode);
767 struct crypto_helper_ops *ops = lci->ll_cops;
768 if (ops && ops->decrypt_key)
769 return ops->decrypt_key(inode, it);
775 int ll_crypto_init_inode_key(struct inode *inode, void *md_key)
777 struct ll_crypto_info *lci = ll_i2crpi(inode);
779 struct crypto_helper_ops *ops = lci->ll_cops;
780 if (ops && ops->init_inode_key)
781 return ops->init_inode_key(inode, md_key);
787 int ll_crypto_destroy_inode_key(struct inode *inode)
789 struct ll_crypto_info *lci = ll_i2crpi(inode);
791 struct crypto_helper_ops *ops = lci->ll_cops;
792 if (ops && ops->destroy_key)
793 return ops->destroy_key(inode);
798 int lustre_init_crypto(struct super_block *sb, char *gkc,
799 struct obd_connect_data *data, int async);
800 int lustre_destroy_crypto(struct super_block *sb);
801 int ll_set_sb_gksinfo(struct super_block *sb, char *type);
802 /* pass this flag to ll_md_real_close() to send close rpc right away */
803 #define FMODE_SYNC 00000010
804 #endif /* LLITE_INTERNAL_H */