4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
31 * lustre/mdd/mdd_internal.h
33 * Author: Wang Di <wangdi@clusterfs.com>
36 #ifndef _MDD_INTERNAL_H
37 #define _MDD_INTERNAL_H
39 #include <lustre_acl.h>
40 #include <lustre_compat.h>
41 #include <md_object.h>
42 #include <dt_object.h>
43 #include <lustre_lfsck.h>
44 #include <lustre_fid.h>
45 #include <lprocfs_status.h>
46 #include <lustre_log.h>
47 #include <lustre_linkea.h>
49 /* ChangeLog params for automatic purge mechanism */
50 /* max time allowed for a user to stay idle in seconds */
51 #define CHLOG_MAX_IDLE_TIME 2592000 /* = 30 days */
52 /* max gap allowed for a user to stay idle in number of ChangeLog records
53 * this is an evaluation, assuming that chunk-size is LLOG_MIN_CHUNK_SIZE, of
54 * the indexes gap for half full changelogs */
55 #define CHLOG_MAX_IDLE_INDEXES (((LLOG_MIN_CHUNK_SIZE - \
56 offsetof(struct llog_log_hdr, \
58 sizeof(struct llog_rec_tail)) * 4) * \
59 ((LLOG_MIN_CHUNK_SIZE - \
60 offsetof(struct llog_log_hdr, \
62 sizeof(struct llog_rec_tail)) * 8))
63 /* min time in seconds between two gc thread runs if none already started */
64 #define CHLOG_MIN_GC_INTERVAL 3600
65 /* minimum number of free ChangeLog catalog entries (ie, between cur and
66 * last indexes) before starting garbage collect */
67 #define CHLOG_MIN_FREE_CAT_ENTRIES 2
70 /** changelog is recording */
71 #define CLM_ON 0x00001
72 /** internal error prevented changelogs from starting */
73 #define CLM_ERR 0x00002
75 /** changelogs turned on */
76 #define CLM_START 0x10000
77 /** changelogs turned off */
78 #define CLM_FINI 0x20000
79 /** some changelog records purged */
80 #define CLM_PURGE 0x40000
81 /** changelog cleanup done, to prevent double cleanup */
82 #define CLM_CLEANUP_DONE 0x80000
84 #define LLOG_CHANGELOG_HDR_SZ (sizeof(struct llog_changelog_rec) - \
85 sizeof(struct changelog_rec))
86 /* mc_gc_task values */
87 /** no GC thread to be started **/
88 #define MDD_CHLG_GC_NONE NULL
89 /** a GC thread need to be started **/
90 #define MDD_CHLG_GC_NEED (struct task_struct *)(-1)
91 /** a GC thread will be started now **/
92 #define MDD_CHLG_GC_START (struct task_struct *)(-2)
93 /** else the started task_struct address when running **/
95 struct mdd_changelog {
96 spinlock_t mc_lock; /* for index */
98 __u32 mc_proc_mask; /* per-server mask set via parameters */
99 __u32 mc_current_mask; /* combined global+users */
100 __u32 mc_mintime; /* the oldest changelog user time */
101 __u64 mc_minrec; /* last known minimal used index */
103 ktime_t mc_starttime;
104 spinlock_t mc_user_lock;
106 int mc_users; /* registered users number */
107 struct task_struct *mc_gc_task;
108 time64_t mc_gc_time; /* last GC check or run time */
109 unsigned int mc_deniednext; /* interval for recording denied
112 unsigned char mc_enable_shard_pfid; /* master or shard pFID
117 static inline __u64 cl_time(void)
119 struct timespec64 time;
121 ktime_get_real_ts64(&time);
122 return (((__u64)time.tv_sec) << 30) + time.tv_nsec;
125 /** Objects in .lustre dir */
126 struct mdd_dot_lustre_objs {
127 struct mdd_object *mdd_obf;
128 struct mdd_object *mdd_lpf;
131 struct mdd_generic_thread {
132 struct completion mgt_started;
133 struct completion mgt_finished;
140 struct md_device mdd_md_dev;
141 struct obd_export *mdd_child_exp;
142 struct dt_device *mdd_child;
143 struct dt_device *mdd_bottom;
144 struct lu_fid mdd_root_fid; /* /ROOT */
145 struct lu_fid mdd_local_root_fid;
146 struct dt_device_param mdd_dt_conf;
147 struct dt_object *mdd_orphans; /* PENDING directory */
148 struct mdd_changelog mdd_cl;
149 unsigned int mdd_changelog_gc;
150 /* emrg GC is in progress */
151 bool mdd_changelog_emrg_gc;
152 /* don't use GC by free space */
153 bool mdd_changelog_free_space_gc;
154 time64_t mdd_changelog_max_idle_time;
155 unsigned long mdd_changelog_max_idle_indexes;
156 time64_t mdd_changelog_min_gc_interval;
157 unsigned int mdd_changelog_min_free_cat_entries;
158 time64_t mdd_atime_diff;
159 struct mdd_object *mdd_dot_lustre;
160 struct mdd_dot_lustre_objs mdd_dot_lustre_objs;
161 unsigned int mdd_sync_permission;
163 int mdd_append_stripe_count;
164 char mdd_append_pool[LOV_MAXPOOLNAME + 1];
165 struct local_oid_storage *mdd_los;
166 struct mdd_generic_thread mdd_orphan_cleanup_thread;
167 struct kobject mdd_kobj;
168 struct kobj_type mdd_ktype;
169 struct completion mdd_kobj_unregister;
173 /* The dir object has been unlinked */
176 VOLATILE_OBJ = BIT(4),
180 struct md_object mod_obj;
181 struct lu_fid mod_striped_pfid; /* master dir parent FID, in
182 * case this is a striped dir
188 unsigned long mod_flags;
189 struct list_head mod_users; /**< unique user opens */
192 #define MDI_KEEP_KEY 0x01
194 struct mdd_thread_info {
195 struct lu_fid mdi_fid;
196 struct lu_fid mdi_fid2; /* used for be & cpu converting */
198 * only be used by MDD interfaces, can be passed into local MDD APIs.
200 struct lu_attr mdi_pattr;
201 struct lu_attr mdi_cattr;
202 struct lu_attr mdi_tpattr;
203 struct lu_attr mdi_tattr;
204 /** used to set ctime/mtime */
205 struct lu_attr mdi_la_for_fix;
206 /* Only used in mdd_object_start */
207 struct lu_attr mdi_la_for_start;
208 /* mdi_ent/mdi_key must be together so mdi_ent::lde_name is mdi_key */
209 struct lu_dirent mdi_ent;
210 char mdi_key[NAME_MAX + 16];
212 char mdi_name[NAME_MAX + 1];
213 struct lu_buf mdi_buf[4];
214 /* persistent buffers, must be handled with lu_buf_alloc/free */
215 struct lu_buf mdi_big_buf;
216 struct lu_buf mdi_chlg_buf;
217 struct lu_buf mdi_link_buf; /* buf for link ea */
218 struct lu_buf mdi_xattr_buf;
220 struct dt_allocation_hint mdi_hint;
221 struct dt_object_format mdi_dof;
222 struct linkea_data mdi_link_data;
223 struct md_op_spec mdi_spec;
224 struct dt_insert_rec mdi_dt_rec;
225 struct lu_seq_range mdi_range;
226 struct md_layout_change mdi_mlc;
229 int mdd_la_get(const struct lu_env *env, struct mdd_object *obj,
231 int mdd_attr_get(const struct lu_env *env, struct md_object *obj,
233 int mdd_attr_set(const struct lu_env *env, struct md_object *obj,
234 const struct md_attr *ma);
235 int mdd_attr_set_internal(const struct lu_env *env,
236 struct mdd_object *obj,
237 const struct lu_attr *attr,
238 struct thandle *handle,
240 int mdd_update_time(const struct lu_env *env, struct mdd_object *obj,
241 const struct lu_attr *oattr, struct lu_attr *attr,
242 struct thandle *handle);
243 int mdd_create(const struct lu_env *env, struct md_object *pobj,
244 const struct lu_name *lname, struct md_object *child,
245 struct md_op_spec *spec, struct md_attr *ma);
246 int mdd_create_object_internal(const struct lu_env *env, struct mdd_object *p,
247 struct mdd_object *c, struct lu_attr *attr,
248 struct thandle *handle,
249 const struct md_op_spec *spec,
250 struct dt_allocation_hint *hint);
253 void mdd_write_lock(const struct lu_env *env, struct mdd_object *obj,
254 enum dt_object_role role);
255 void mdd_read_lock(const struct lu_env *env, struct mdd_object *obj,
256 enum dt_object_role role);
257 void mdd_write_unlock(const struct lu_env *env, struct mdd_object *obj);
258 void mdd_read_unlock(const struct lu_env *env, struct mdd_object *obj);
259 int mdd_write_locked(const struct lu_env *env, struct mdd_object *obj);
262 int mdd_may_create(const struct lu_env *env, struct mdd_object *pobj,
263 const struct lu_attr *pattr, struct mdd_object *cobj,
265 int mdd_may_unlink(const struct lu_env *env, struct mdd_object *pobj,
266 const struct lu_attr *pattr, const struct lu_attr *attr);
267 int mdd_may_delete(const struct lu_env *env, struct mdd_object *tpobj,
268 const struct lu_attr *tpattr, struct mdd_object *tobj,
269 const struct lu_attr *tattr, const struct lu_attr *cattr,
270 int check_perm, int check_empty);
271 int mdd_unlink_sanity_check(const struct lu_env *env, struct mdd_object *pobj,
272 const struct lu_attr *pattr,
273 struct mdd_object *cobj,
274 const struct lu_attr *cattr);
275 int mdd_finish_unlink(const struct lu_env *env, struct mdd_object *obj,
276 struct md_attr *ma, struct mdd_object *pobj,
277 const struct lu_name *lname, struct thandle *th);
279 int mdd_is_root(struct mdd_device *mdd, const struct lu_fid *fid);
280 int mdd_lookup(const struct lu_env *env,
281 struct md_object *pobj, const struct lu_name *lname,
282 struct lu_fid* fid, struct md_op_spec *spec);
283 int mdd_links_write(const struct lu_env *env, struct mdd_object *mdd_obj,
284 struct linkea_data *ldata, struct thandle *handle);
285 int mdd_links_read(const struct lu_env *env,
286 struct mdd_object *mdd_obj,
287 struct linkea_data *ldata);
288 struct lu_buf *mdd_links_get(const struct lu_env *env,
289 struct mdd_object *mdd_obj);
290 int mdd_links_rename(const struct lu_env *env,
291 struct mdd_object *mdd_obj,
292 const struct lu_fid *oldpfid,
293 const struct lu_name *oldlname,
294 const struct lu_fid *newpfid,
295 const struct lu_name *newlname,
296 struct thandle *handle,
297 struct linkea_data *ldata,
298 int first, int check);
299 int mdd_dir_layout_shrink(const struct lu_env *env,
300 struct md_object *md_obj,
301 struct md_layout_change *mlc);
302 int mdd_dir_layout_split(const struct lu_env *env, struct md_object *o,
303 struct md_layout_change *mlc);
305 int mdd_changelog_write_rec(const struct lu_env *env,
306 struct llog_handle *loghandle,
307 struct llog_rec_hdr *rec,
308 struct llog_cookie *cookie,
309 int idx, struct thandle *th);
311 struct mdd_thread_info *mdd_env_info(const struct lu_env *env);
313 #define MDD_ENV_VAR(env, var) (&mdd_env_info(env)->mdi_##var)
315 struct lu_buf *mdd_buf_get(const struct lu_env *env, void *area, ssize_t len);
316 const struct lu_buf *mdd_buf_get_const(const struct lu_env *env,
317 const void *area, ssize_t len);
319 int mdd_orphan_cleanup(const struct lu_env *env, struct mdd_device *d);
320 int mdd_orphan_insert(const struct lu_env *env, struct mdd_object *obj,
321 struct thandle *thandle);
322 int mdd_orphan_delete(const struct lu_env *env, struct mdd_object *obj,
323 struct thandle *thandle);
324 int mdd_orphan_index_init(const struct lu_env *env, struct mdd_device *mdd);
325 void mdd_orphan_index_fini(const struct lu_env *env, struct mdd_device *mdd);
326 int mdd_orphan_declare_insert(const struct lu_env *env, struct mdd_object *obj,
327 umode_t mode, struct thandle *thandle);
328 int mdd_orphan_declare_delete(const struct lu_env *env, struct mdd_object *obj,
329 struct thandle *thandle);
330 int mdd_dir_is_empty(const struct lu_env *env, struct mdd_object *dir);
333 int mdd_procfs_init(struct mdd_device *mdd, const char *name);
334 void mdd_procfs_fini(struct mdd_device *mdd);
337 extern struct kmem_cache *mdd_object_kmem;
338 extern const struct md_dir_operations mdd_dir_ops;
339 extern const struct md_object_operations mdd_obj_ops;
340 int mdd_readlink(const struct lu_env *env, struct md_object *obj,
342 extern struct lu_context_key mdd_thread_key;
343 extern const struct lu_device_operations mdd_lu_ops;
345 struct mdd_object *mdd_object_find(const struct lu_env *env,
346 struct mdd_device *d,
347 const struct lu_fid *f);
348 int mdd_readpage(const struct lu_env *env, struct md_object *obj,
349 const struct lu_rdpg *rdpg);
350 int mdd_declare_changelog_store(const struct lu_env *env,
351 struct mdd_device *mdd,
352 enum changelog_rec_type type,
353 const struct lu_name *tname,
354 const struct lu_name *sname,
355 struct thandle *handle);
356 void mdd_changelog_rec_ext_jobid(struct changelog_rec *rec, const char *jobid);
357 void mdd_changelog_rec_ext_extra_flags(struct changelog_rec *rec, __u64 eflags);
358 void mdd_changelog_rec_extra_uidgid(struct changelog_rec *rec,
359 __u64 uid, __u64 gid);
360 void mdd_changelog_rec_extra_nid(struct changelog_rec *rec,
362 void mdd_changelog_rec_extra_omode(struct changelog_rec *rec, u32 flags);
363 void mdd_changelog_rec_extra_xattr(struct changelog_rec *rec,
364 const char *xattr_name);
365 int mdd_changelog_store(const struct lu_env *env, struct mdd_device *mdd,
366 struct llog_changelog_rec *rec, struct thandle *th);
367 int mdd_changelog_data_store(const struct lu_env *env, struct mdd_device *mdd,
368 enum changelog_rec_type type,
369 enum changelog_rec_flags clf_flags,
370 struct mdd_object *mdd_obj,
371 struct thandle *handle,
372 const struct lu_fid *pfid);
373 int mdd_changelog_ns_store(const struct lu_env *env, struct mdd_device *mdd,
374 enum changelog_rec_type type,
375 enum changelog_rec_flags clf_flags,
376 struct mdd_object *target,
377 struct mdd_object *parent,
378 const struct lu_attr *pattr,
379 const struct lu_fid *sfid,
380 struct mdd_object *src_parent,
381 const struct lu_attr *src_pattr,
382 const struct lu_name *tname,
383 const struct lu_name *sname,
384 struct thandle *handle);
385 int mdd_invalidate(const struct lu_env *env, struct md_object *obj);
386 int mdd_declare_create_object_internal(const struct lu_env *env,
387 struct mdd_object *p,
388 struct mdd_object *c,
389 struct lu_attr *attr,
390 struct thandle *handle,
391 const struct md_op_spec *spec,
392 struct dt_allocation_hint *hint);
393 int mdd_stripe_get(const struct lu_env *env, struct mdd_object *obj,
394 struct lu_buf *lmm_buf, const char *name);
395 int mdd_changelog_data_store_xattr(const struct lu_env *env,
396 struct mdd_device *mdd,
397 enum changelog_rec_type type,
398 enum changelog_rec_flags clf_flags,
399 struct mdd_object *mdd_obj,
400 const char *xattr_name,
401 struct thandle *handle);
402 int mdd_dom_fixup(const struct lu_env *env, struct mdd_device *mdd,
403 struct mdd_object *mo, struct mdd_object *vo);
406 void mdd_object_make_hint(const struct lu_env *env, struct mdd_object *parent,
407 struct mdd_object *child, const struct lu_attr *attr,
408 const struct md_op_spec *spec,
409 struct dt_allocation_hint *hint);
411 static inline void mdd_object_get(struct mdd_object *o)
413 lu_object_get(&o->mod_obj.mo_lu);
416 static inline void mdd_object_put(const struct lu_env *env,
417 struct mdd_object *o)
419 lu_object_put(env, &o->mod_obj.mo_lu);
422 struct thandle *mdd_trans_create(const struct lu_env *env,
423 struct mdd_device *mdd);
424 int mdd_trans_start(const struct lu_env *env, struct mdd_device *mdd,
426 int mdd_trans_stop(const struct lu_env *env, struct mdd_device *mdd,
427 int rc, struct thandle *handle);
430 struct lu_object *mdd_object_alloc(const struct lu_env *env,
431 const struct lu_object_header *hdr,
432 struct lu_device *d);
433 int mdd_local_file_create(const struct lu_env *env, struct mdd_device *mdd,
434 const struct lu_fid *pfid, const char *name,
435 __u32 mode, struct lu_fid *fid);
437 int mdd_acl_chmod(const struct lu_env *env, struct mdd_object *o, __u32 mode,
438 struct thandle *handle);
439 int mdd_acl_set(const struct lu_env *env, struct mdd_object *obj,
440 struct lu_attr *attr, const struct lu_buf *buf, int fl);
441 int __mdd_fix_mode_acl(const struct lu_env *env, struct lu_buf *buf,
443 int __mdd_permission_internal(const struct lu_env *env, struct mdd_object *obj,
444 const struct lu_attr *la, unsigned int may_mask,
446 int mdd_permission(const struct lu_env *env, struct md_object *pobj,
447 struct md_object *cobj, struct md_attr *ma,
448 unsigned int may_mask);
449 int mdd_generic_thread_start(struct mdd_generic_thread *thread,
450 int (*func)(void *), void *data, char *name);
451 void mdd_generic_thread_stop(struct mdd_generic_thread *thread);
452 int mdd_changelog_user_purge(const struct lu_env *env, struct mdd_device *mdd,
454 char *mdd_chlg_username(struct llog_changelog_user_rec2 *rec, char *buf,
456 __u32 mdd_chlg_usermask(struct llog_changelog_user_rec2 *rec);
457 int mdd_changelog_recalc_mask(const struct lu_env *env, struct mdd_device *mdd);
460 int mdd_compat_fixes(const struct lu_env *env, struct mdd_device *mdd);
463 extern int lustre_posix_acl_permission(struct lu_ucred *mu,
464 const struct lu_attr *la,
465 unsigned int may_mask,
466 posix_acl_xattr_entry *entry,
468 extern int lustre_posix_acl_chmod_masq(posix_acl_xattr_entry *entry,
469 __u32 mode, int count);
470 extern int lustre_posix_acl_create_masq(posix_acl_xattr_entry *entry,
471 __u32 *pmode, int count);
472 extern int lustre_posix_acl_equiv_mode(posix_acl_xattr_entry *entry,
473 mode_t *mode_p, int count);
475 /* inline functions */
476 static inline int lu_device_is_mdd(struct lu_device *d)
478 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &mdd_lu_ops);
481 static inline struct mdd_device *lu2mdd_dev(struct lu_device *d)
483 LASSERT(lu_device_is_mdd(d));
484 return container_of_safe(d, struct mdd_device, mdd_md_dev.md_lu_dev);
487 static inline struct lu_device *mdd2lu_dev(struct mdd_device *mdd)
489 return &mdd->mdd_md_dev.md_lu_dev;
492 static inline struct mdd_object *lu2mdd_obj(struct lu_object *o)
494 LASSERT(ergo(o != NULL, lu_device_is_mdd(o->lo_dev)));
495 return container_of_safe(o, struct mdd_object,
499 static inline struct mdd_device *mdo2mdd(struct md_object *mdo)
501 return lu2mdd_dev(mdo->mo_lu.lo_dev);
504 static inline struct mdd_object *md2mdd_obj(struct md_object *mdo)
506 return container_of_safe(mdo, struct mdd_object, mod_obj);
510 struct dt_device_operations *mdd_child_ops(struct mdd_device *mdd)
512 return mdd->mdd_child->dd_ops;
515 static inline struct lu_object *mdd2lu_obj(struct mdd_object *obj)
517 return &obj->mod_obj.mo_lu;
520 static inline struct dt_object *mdd_object_child(struct mdd_object *obj)
522 return container_of(lu_object_next(mdd2lu_obj(obj)),
523 struct dt_object, do_lu);
526 static inline struct obd_device *mdd2obd_dev(struct mdd_device *mdd)
528 return (mdd->mdd_md_dev.md_lu_dev.ld_obd);
531 static inline struct mdd_device *mdd_obj2mdd_dev(struct mdd_object *obj)
533 return mdo2mdd(&obj->mod_obj);
536 static inline umode_t mdd_object_type(const struct mdd_object *mdd_obj)
538 return lu_object_attr(&mdd_obj->mod_obj.mo_lu);
541 static inline int mdd_is_dead_obj(struct mdd_object *mdd_obj)
543 return mdd_obj && mdd_obj->mod_flags & DEAD_OBJ;
546 static inline bool mdd_is_volatile_obj(struct mdd_object *mdd_obj)
548 return mdd_obj->mod_flags & VOLATILE_OBJ;
551 static inline bool mdd_is_orphan_obj(struct mdd_object *mdd_obj)
553 return mdd_obj->mod_flags & ORPHAN_OBJ;
556 static inline int mdd_object_exists(struct mdd_object *mdd_obj)
558 return lu_object_exists(mdd2lu_obj(mdd_obj));
561 static inline int mdd_object_remote(struct mdd_object *mdd_obj)
563 return lu_object_remote(mdd2lu_obj(mdd_obj));
566 static inline const struct lu_fid *mdd_object_fid(struct mdd_object *mdd_obj)
568 return lu_object_fid(mdd2lu_obj(mdd_obj));
571 static inline struct seq_server_site *mdd_seq_site(struct mdd_device *mdd)
573 return mdd2lu_dev(mdd)->ld_site->ld_seq_site;
576 static inline const char *mdd_obj_dev_name(const struct mdd_object *mdd_obj)
578 return lu_dev_name(mdd_obj->mod_obj.mo_lu.lo_dev);
581 #define MAX_ATIME_DIFF 60
583 static inline int mdd_permission_internal(const struct lu_env *env,
584 struct mdd_object *obj,
585 const struct lu_attr *la,
586 unsigned int may_mask)
588 return __mdd_permission_internal(env, obj, la, may_mask, -1);
591 static inline int mdd_permission_internal_locked(const struct lu_env *env,
592 struct mdd_object *obj,
593 const struct lu_attr *la,
594 unsigned int may_mask,
595 enum dt_object_role role)
597 return __mdd_permission_internal(env, obj, la, may_mask, role);
600 /* mdd inline func for calling osd_dt_object ops */
601 static inline int mdo_attr_get(const struct lu_env *env, struct mdd_object *obj,
604 struct dt_object *next = mdd_object_child(obj);
605 return dt_attr_get(env, next, la);
608 static inline int mdo_declare_attr_set(const struct lu_env *env,
609 struct mdd_object *obj,
610 const struct lu_attr *la,
611 struct thandle *handle)
613 struct dt_object *next = mdd_object_child(obj);
614 return dt_declare_attr_set(env, next, la, handle);
617 static inline int mdo_attr_set(const struct lu_env *env,
618 struct mdd_object *obj,
619 const struct lu_attr *la,
620 struct thandle *handle)
622 struct dt_object *next = mdd_object_child(obj);
624 if (!mdd_object_exists(obj))
627 return dt_attr_set(env, next, la, handle);
630 static inline int mdo_xattr_get(const struct lu_env *env,struct mdd_object *obj,
631 struct lu_buf *buf, const char *name)
633 struct dt_object *next = mdd_object_child(obj);
634 return dt_xattr_get(env, next, buf, name);
637 static inline int mdo_declare_xattr_set(const struct lu_env *env,
638 struct mdd_object *obj,
639 const struct lu_buf *buf,
641 int fl, struct thandle *handle)
643 struct dt_object *next = mdd_object_child(obj);
646 rc = dt_declare_xattr_set(env, next, buf, name, fl, handle);
648 (strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT) == 0 ||
649 strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT_OLD) == 0)) {
650 struct lu_attr la = { 0 };
652 la.la_valid = LA_FLAGS;
653 la.la_flags = LUSTRE_ENCRYPT_FL;
654 rc = dt_declare_attr_set(env, next, &la, handle);
659 static inline int mdo_xattr_set(const struct lu_env *env,struct mdd_object *obj,
660 const struct lu_buf *buf, const char *name,
661 int fl, struct thandle *handle)
663 struct dt_object *next = mdd_object_child(obj);
666 if (!mdd_object_exists(obj))
669 /* If we are about to set the LL_XATTR_NAME_ENCRYPTION_CONTEXT
670 * xattr, it means the file/dir is encrypted. In that case we want
671 * to set the LUSTRE_ENCRYPT_FL flag as well: it will be stored
672 * into the LMA, making it more efficient to recognise we are
673 * dealing with an encrypted file/dir, as LMA info is cached upon
675 * However, marking a dir as encrypted is only possible if it is
676 * being created or migrated (LU_XATTR_CREATE flag not set), or
679 if ((strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT) == 0 ||
680 strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT_OLD) == 0) &&
681 (!S_ISDIR(mdd_object_type(obj)) ||
682 !(fl & LU_XATTR_CREATE) ||
683 (rc = mdd_dir_is_empty(env, obj)) == 0)) {
684 struct lu_attr la = { 0 };
686 la.la_valid = LA_FLAGS;
687 la.la_flags = LUSTRE_ENCRYPT_FL;
688 /* if this is an old client using the old enc xattr name,
689 * switch to the new name for consistency
691 if (strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT_OLD) == 0)
692 name = LL_XATTR_NAME_ENCRYPTION_CONTEXT;
693 rc = dt_attr_set(env, next, &la, handle);
696 rc = dt_xattr_set(env, next, buf, name, fl, handle);
701 static inline int mdo_declare_xattr_del(const struct lu_env *env,
702 struct mdd_object *obj,
704 struct thandle *handle)
706 struct dt_object *next = mdd_object_child(obj);
707 return dt_declare_xattr_del(env, next, name, handle);
710 static inline int mdo_xattr_del(const struct lu_env *env,struct mdd_object *obj,
711 const char *name, struct thandle *handle)
713 struct dt_object *next = mdd_object_child(obj);
715 if (!mdd_object_exists(obj))
718 return dt_xattr_del(env, next, name, handle);
722 mdo_xattr_list(const struct lu_env *env, struct mdd_object *obj,
725 struct dt_object *next = mdd_object_child(obj);
727 if (!mdd_object_exists(obj))
730 return dt_xattr_list(env, next, buf);
734 mdo_invalidate(const struct lu_env *env, struct mdd_object *obj)
736 return dt_invalidate(env, mdd_object_child(obj));
740 mdo_declare_layout_change(const struct lu_env *env, struct mdd_object *obj,
741 struct md_layout_change *mlc, struct thandle *handle)
743 return dt_declare_layout_change(env, mdd_object_child(obj),
748 mdo_layout_change(const struct lu_env *env, struct mdd_object *obj,
749 struct md_layout_change *mlc, struct thandle *handle)
751 return dt_layout_change(env, mdd_object_child(obj), mlc, handle);
755 int mdo_declare_index_insert(const struct lu_env *env, struct mdd_object *obj,
756 const struct lu_fid *fid, __u32 type,
757 const char *name, struct thandle *handle)
759 struct dt_object *next = mdd_object_child(obj);
763 * if the object doesn't exist yet, then it's supposed to be created
764 * and declaration of the creation should be enough to insert ./..
768 if (dt_try_as_dir(env, next, false)) {
769 struct dt_insert_rec *rec = &mdd_env_info(env)->mdi_dt_rec;
772 rec->rec_type = type;
773 rc = dt_declare_insert(env, next, (const struct dt_rec *)rec,
774 (const struct dt_key *)name, handle);
781 int mdo_declare_index_delete(const struct lu_env *env, struct mdd_object *obj,
782 const char *name, struct thandle *handle)
784 struct dt_object *next = mdd_object_child(obj);
786 if (!dt_try_as_dir(env, next, true))
789 return dt_declare_delete(env, next, (const struct dt_key *)name,
793 static inline int mdo_declare_ref_add(const struct lu_env *env,
794 struct mdd_object *obj,
795 struct thandle *handle)
797 struct dt_object *next = mdd_object_child(obj);
798 return dt_declare_ref_add(env, next, handle);
801 static inline int mdo_ref_add(const struct lu_env *env, struct mdd_object *obj,
802 struct thandle *handle)
804 struct dt_object *next = mdd_object_child(obj);
806 if (!mdd_object_exists(obj))
809 return dt_ref_add(env, next, handle);
812 static inline int mdo_declare_ref_del(const struct lu_env *env,
813 struct mdd_object *obj,
814 struct thandle *handle)
816 struct dt_object *next = mdd_object_child(obj);
817 return dt_declare_ref_del(env, next, handle);
820 static inline int mdo_ref_del(const struct lu_env *env, struct mdd_object *obj,
821 struct thandle *handle)
823 struct dt_object *next = mdd_object_child(obj);
825 if (!mdd_object_exists(obj))
828 return dt_ref_del(env, next, handle);
832 mdo_declare_create_object(const struct lu_env *env, struct mdd_object *obj,
833 struct lu_attr *attr, struct dt_allocation_hint *hint,
834 struct dt_object_format *dof, struct thandle *handle)
836 struct dt_object *next = mdd_object_child(obj);
837 return dt_declare_create(env, next, attr, hint, dof, handle);
841 mdo_create_object(const struct lu_env *env, struct mdd_object *obj,
842 struct lu_attr *attr, struct dt_allocation_hint *hint,
843 struct dt_object_format *dof, struct thandle *handle)
845 struct dt_object *next = mdd_object_child(obj);
846 return dt_create(env, next, attr, hint, dof, handle);
850 int mdo_declare_destroy(const struct lu_env *env, struct mdd_object *o,
851 struct thandle *handle)
853 struct dt_object *next = mdd_object_child(o);
854 return dt_declare_destroy(env, next, handle);
858 int mdo_destroy(const struct lu_env *env, struct mdd_object *o,
859 struct thandle *handle)
861 struct dt_object *next = mdd_object_child(o);
862 return dt_destroy(env, next, handle);
865 static inline bool mdd_changelog_enabled(const struct lu_env *env,
866 struct mdd_device *mdd,
867 enum changelog_rec_type type)
869 const struct lu_ucred *uc;
871 if ((mdd->mdd_cl.mc_flags & CLM_ON) &&
872 (mdd->mdd_cl.mc_current_mask & BIT(type))) {
873 uc = lu_ucred_check(env);
875 return uc != NULL ? uc->uc_enable_audit : true;
881 static inline bool mdd_changelog_is_too_idle(struct mdd_device *mdd,
882 __u64 cl_rec, __u32 cl_time)
884 __u64 idle_indexes = mdd->mdd_cl.mc_index - cl_rec;
885 __u32 idle_time = (__u32)ktime_get_real_seconds() - cl_time;
887 return (idle_indexes > mdd->mdd_changelog_max_idle_indexes ||
888 idle_time > mdd->mdd_changelog_max_idle_time ||
889 idle_time * idle_indexes > (24 * 3600ULL << 32));
892 bool mdd_changelog_is_space_safe(const struct lu_env *env,
893 struct mdd_device *mdd,
894 struct llog_handle *lgh,
897 #define MAX_TRANS_RETRIED 20
900 mdd_write_lock_two_objects(const struct lu_env *env,
901 struct mdd_object *obj1,
902 struct mdd_object *obj2)
906 /* there shouldn't be callers with obj1 == NULL */
907 LASSERT(obj1 != NULL);
911 order = lu_fid_cmp(mdd_object_fid(obj1), mdd_object_fid(obj2));
912 if (unlikely(order == 0))
916 mdd_write_lock(env, obj1, DT_TGT_CHILD);
917 mdd_write_lock(env, obj2, DT_TGT_CHILD);
919 mdd_write_lock(env, obj2, DT_TGT_CHILD);
921 mdd_write_lock(env, obj1, DT_TGT_CHILD);
928 mdd_write_unlock_two_objects(const struct lu_env *env,
929 struct mdd_object *obj1,
930 struct mdd_object *obj2)
932 mdd_write_unlock(env, obj1);
934 mdd_write_unlock(env, obj2);