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
189 unsigned long mod_flags;
190 struct list_head mod_users; /**< unique user opens */
193 #define MDI_KEEP_KEY 0x01
195 struct mdd_thread_info {
196 struct lu_fid mdi_fid;
197 struct lu_fid mdi_fid2; /* used for be & cpu converting */
199 * only be used by MDD interfaces, can be passed into local MDD APIs.
201 struct lu_attr mdi_pattr;
202 struct lu_attr mdi_cattr;
203 struct lu_attr mdi_tpattr;
204 struct lu_attr mdi_tattr;
205 /** used to set ctime/mtime */
206 struct lu_attr mdi_la_for_fix;
207 /* Only used in mdd_object_start */
208 struct lu_attr mdi_la_for_start;
209 /* mdi_ent/mdi_key must be together so mdi_ent::lde_name is mdi_key */
210 struct lu_dirent mdi_ent;
211 char mdi_key[NAME_MAX + 16];
213 char mdi_name[NAME_MAX + 1];
214 struct lu_buf mdi_buf[4];
215 /* persistent buffers, must be handled with lu_buf_alloc/free */
216 struct lu_buf mdi_big_buf;
217 struct lu_buf mdi_chlg_buf;
218 struct lu_buf mdi_link_buf; /* buf for link ea */
219 struct lu_buf mdi_xattr_buf;
221 struct dt_allocation_hint mdi_hint;
222 struct dt_object_format mdi_dof;
223 struct linkea_data mdi_link_data;
224 struct md_op_spec mdi_spec;
225 struct dt_insert_rec mdi_dt_rec;
226 struct lu_seq_range mdi_range;
227 struct md_layout_change mdi_mlc;
230 int mdd_la_get(const struct lu_env *env, struct mdd_object *obj,
232 int mdd_attr_get(const struct lu_env *env, struct md_object *obj,
234 int mdd_attr_set(const struct lu_env *env, struct md_object *obj,
235 const struct md_attr *ma);
236 int mdd_attr_set_internal(const struct lu_env *env,
237 struct mdd_object *obj,
238 const struct lu_attr *attr,
239 struct thandle *handle,
241 int mdd_update_time(const struct lu_env *env, struct mdd_object *obj,
242 const struct lu_attr *oattr, struct lu_attr *attr,
243 struct thandle *handle);
244 int mdd_create(const struct lu_env *env, struct md_object *pobj,
245 const struct lu_name *lname, struct md_object *child,
246 struct md_op_spec *spec, struct md_attr *ma);
247 int mdd_create_object_internal(const struct lu_env *env, struct mdd_object *p,
248 struct mdd_object *c, struct lu_attr *attr,
249 struct thandle *handle,
250 const struct md_op_spec *spec,
251 struct dt_allocation_hint *hint);
254 void mdd_write_lock(const struct lu_env *env, struct mdd_object *obj,
255 enum dt_object_role role);
256 void mdd_read_lock(const struct lu_env *env, struct mdd_object *obj,
257 enum dt_object_role role);
258 void mdd_write_unlock(const struct lu_env *env, struct mdd_object *obj);
259 void mdd_read_unlock(const struct lu_env *env, struct mdd_object *obj);
260 int mdd_write_locked(const struct lu_env *env, struct mdd_object *obj);
263 int mdd_may_create(const struct lu_env *env, struct mdd_object *pobj,
264 const struct lu_attr *pattr, struct mdd_object *cobj,
266 int mdd_may_unlink(const struct lu_env *env, struct mdd_object *pobj,
267 const struct lu_attr *pattr, const struct lu_attr *attr);
268 int mdd_may_delete(const struct lu_env *env, struct mdd_object *tpobj,
269 const struct lu_attr *tpattr, struct mdd_object *tobj,
270 const struct lu_attr *tattr, const struct lu_attr *cattr,
271 int check_perm, int check_empty);
272 int mdd_unlink_sanity_check(const struct lu_env *env, struct mdd_object *pobj,
273 const struct lu_attr *pattr,
274 struct mdd_object *cobj,
275 const struct lu_attr *cattr);
276 int mdd_finish_unlink(const struct lu_env *env, struct mdd_object *obj,
277 struct md_attr *ma, struct mdd_object *pobj,
278 const struct lu_name *lname, struct thandle *th);
280 int mdd_is_root(struct mdd_device *mdd, const struct lu_fid *fid);
281 int mdd_lookup(const struct lu_env *env,
282 struct md_object *pobj, const struct lu_name *lname,
283 struct lu_fid* fid, struct md_op_spec *spec);
284 int mdd_links_write(const struct lu_env *env, struct mdd_object *mdd_obj,
285 struct linkea_data *ldata, struct thandle *handle);
286 int mdd_links_read(const struct lu_env *env,
287 struct mdd_object *mdd_obj,
288 struct linkea_data *ldata);
289 struct lu_buf *mdd_links_get(const struct lu_env *env,
290 struct mdd_object *mdd_obj);
291 int mdd_links_rename(const struct lu_env *env,
292 struct mdd_object *mdd_obj,
293 const struct lu_fid *oldpfid,
294 const struct lu_name *oldlname,
295 const struct lu_fid *newpfid,
296 const struct lu_name *newlname,
297 struct thandle *handle,
298 struct linkea_data *ldata,
299 int first, int check);
300 int mdd_dir_layout_shrink(const struct lu_env *env,
301 struct md_object *md_obj,
302 struct md_layout_change *mlc);
303 int mdd_dir_layout_split(const struct lu_env *env, struct md_object *o,
304 struct md_layout_change *mlc);
306 int mdd_changelog_write_rec(const struct lu_env *env,
307 struct llog_handle *loghandle,
308 struct llog_rec_hdr *rec,
309 struct llog_cookie *cookie,
310 int idx, struct thandle *th);
312 struct mdd_thread_info *mdd_env_info(const struct lu_env *env);
314 #define MDD_ENV_VAR(env, var) (&mdd_env_info(env)->mdi_##var)
316 struct lu_buf *mdd_buf_get(const struct lu_env *env, void *area, ssize_t len);
317 const struct lu_buf *mdd_buf_get_const(const struct lu_env *env,
318 const void *area, ssize_t len);
320 int mdd_orphan_cleanup(const struct lu_env *env, struct mdd_device *d);
321 int mdd_orphan_insert(const struct lu_env *env, struct mdd_object *obj,
322 struct thandle *thandle);
323 int mdd_orphan_delete(const struct lu_env *env, struct mdd_object *obj,
324 struct thandle *thandle);
325 int mdd_orphan_index_init(const struct lu_env *env, struct mdd_device *mdd);
326 void mdd_orphan_index_fini(const struct lu_env *env, struct mdd_device *mdd);
327 int mdd_orphan_declare_insert(const struct lu_env *env, struct mdd_object *obj,
328 umode_t mode, struct thandle *thandle);
329 int mdd_orphan_declare_delete(const struct lu_env *env, struct mdd_object *obj,
330 struct thandle *thandle);
331 int mdd_dir_is_empty(const struct lu_env *env, struct mdd_object *dir);
334 int mdd_procfs_init(struct mdd_device *mdd, const char *name);
335 void mdd_procfs_fini(struct mdd_device *mdd);
338 extern struct kmem_cache *mdd_object_kmem;
339 extern const struct md_dir_operations mdd_dir_ops;
340 extern const struct md_object_operations mdd_obj_ops;
341 int mdd_readlink(const struct lu_env *env, struct md_object *obj,
343 extern struct lu_context_key mdd_thread_key;
344 extern const struct lu_device_operations mdd_lu_ops;
346 struct mdd_object *mdd_object_find(const struct lu_env *env,
347 struct mdd_device *d,
348 const struct lu_fid *f);
349 int mdd_readpage(const struct lu_env *env, struct md_object *obj,
350 const struct lu_rdpg *rdpg);
351 int mdd_declare_changelog_store(const struct lu_env *env,
352 struct mdd_device *mdd,
353 enum changelog_rec_type type,
354 const struct lu_name *tname,
355 const struct lu_name *sname,
356 struct thandle *handle);
357 void mdd_changelog_rec_ext_jobid(struct changelog_rec *rec, const char *jobid);
358 void mdd_changelog_rec_ext_extra_flags(struct changelog_rec *rec, __u64 eflags);
359 void mdd_changelog_rec_extra_uidgid(struct changelog_rec *rec,
360 __u64 uid, __u64 gid);
361 void mdd_changelog_rec_extra_nid(struct changelog_rec *rec,
363 void mdd_changelog_rec_extra_omode(struct changelog_rec *rec, u32 flags);
364 void mdd_changelog_rec_extra_xattr(struct changelog_rec *rec,
365 const char *xattr_name);
366 int mdd_changelog_store(const struct lu_env *env, struct mdd_device *mdd,
367 struct llog_changelog_rec *rec, struct thandle *th);
368 int mdd_changelog_data_store(const struct lu_env *env, struct mdd_device *mdd,
369 enum changelog_rec_type type,
370 enum changelog_rec_flags clf_flags,
371 struct mdd_object *mdd_obj,
372 struct thandle *handle,
373 const struct lu_fid *pfid);
374 int mdd_changelog_ns_store(const struct lu_env *env, struct mdd_device *mdd,
375 enum changelog_rec_type type,
376 enum changelog_rec_flags clf_flags,
377 struct mdd_object *target,
378 struct mdd_object *parent,
379 const struct lu_attr *pattr,
380 const struct lu_fid *sfid,
381 struct mdd_object *src_parent,
382 const struct lu_attr *src_pattr,
383 const struct lu_name *tname,
384 const struct lu_name *sname,
385 struct thandle *handle);
386 int mdd_invalidate(const struct lu_env *env, struct md_object *obj);
387 int mdd_declare_create_object_internal(const struct lu_env *env,
388 struct mdd_object *p,
389 struct mdd_object *c,
390 struct lu_attr *attr,
391 struct thandle *handle,
392 const struct md_op_spec *spec,
393 struct dt_allocation_hint *hint);
394 int mdd_stripe_get(const struct lu_env *env, struct mdd_object *obj,
395 struct lu_buf *lmm_buf, const char *name);
396 int mdd_changelog_data_store_xattr(const struct lu_env *env,
397 struct mdd_device *mdd,
398 enum changelog_rec_type type,
399 enum changelog_rec_flags clf_flags,
400 struct mdd_object *mdd_obj,
401 const char *xattr_name,
402 struct thandle *handle);
403 int mdd_dom_fixup(const struct lu_env *env, struct mdd_device *mdd,
404 struct mdd_object *mo, struct mdd_object *vo);
407 void mdd_object_make_hint(const struct lu_env *env, struct mdd_object *parent,
408 struct mdd_object *child, const struct lu_attr *attr,
409 const struct md_op_spec *spec,
410 struct dt_allocation_hint *hint);
412 static inline void mdd_object_get(struct mdd_object *o)
414 lu_object_get(&o->mod_obj.mo_lu);
417 static inline void mdd_object_put(const struct lu_env *env,
418 struct mdd_object *o)
420 lu_object_put(env, &o->mod_obj.mo_lu);
423 struct thandle *mdd_trans_create(const struct lu_env *env,
424 struct mdd_device *mdd);
425 int mdd_trans_start(const struct lu_env *env, struct mdd_device *mdd,
427 int mdd_trans_stop(const struct lu_env *env, struct mdd_device *mdd,
428 int rc, struct thandle *handle);
431 struct lu_object *mdd_object_alloc(const struct lu_env *env,
432 const struct lu_object_header *hdr,
433 struct lu_device *d);
434 int mdd_local_file_create(const struct lu_env *env, struct mdd_device *mdd,
435 const struct lu_fid *pfid, const char *name,
436 __u32 mode, struct lu_fid *fid);
438 int mdd_acl_chmod(const struct lu_env *env, struct mdd_object *o, __u32 mode,
439 struct thandle *handle);
440 int mdd_acl_set(const struct lu_env *env, struct mdd_object *obj,
441 struct lu_attr *attr, const struct lu_buf *buf, int fl);
442 int __mdd_fix_mode_acl(const struct lu_env *env, struct lu_buf *buf,
444 int __mdd_permission_internal(const struct lu_env *env, struct mdd_object *obj,
445 const struct lu_attr *la, unsigned int may_mask,
447 int mdd_permission(const struct lu_env *env, struct md_object *pobj,
448 struct md_object *cobj, struct md_attr *ma,
449 unsigned int may_mask);
450 int mdd_generic_thread_start(struct mdd_generic_thread *thread,
451 int (*func)(void *), void *data, char *name);
452 void mdd_generic_thread_stop(struct mdd_generic_thread *thread);
453 int mdd_changelog_user_purge(const struct lu_env *env, struct mdd_device *mdd,
455 char *mdd_chlg_username(struct llog_changelog_user_rec2 *rec, char *buf,
457 __u32 mdd_chlg_usermask(struct llog_changelog_user_rec2 *rec);
458 int mdd_changelog_recalc_mask(const struct lu_env *env, struct mdd_device *mdd);
461 int mdd_compat_fixes(const struct lu_env *env, struct mdd_device *mdd);
464 extern int lustre_posix_acl_permission(struct lu_ucred *mu,
465 const struct lu_attr *la,
466 unsigned int may_mask,
467 posix_acl_xattr_entry *entry,
469 extern int lustre_posix_acl_chmod_masq(posix_acl_xattr_entry *entry,
470 __u32 mode, int count);
471 extern int lustre_posix_acl_create_masq(posix_acl_xattr_entry *entry,
472 __u32 *pmode, int count);
473 extern int lustre_posix_acl_equiv_mode(posix_acl_xattr_entry *entry,
474 mode_t *mode_p, int count);
476 /* inline functions */
477 static inline int lu_device_is_mdd(struct lu_device *d)
479 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &mdd_lu_ops);
482 static inline struct mdd_device *lu2mdd_dev(struct lu_device *d)
484 LASSERT(lu_device_is_mdd(d));
485 return container_of_safe(d, struct mdd_device, mdd_md_dev.md_lu_dev);
488 static inline struct lu_device *mdd2lu_dev(struct mdd_device *mdd)
490 return &mdd->mdd_md_dev.md_lu_dev;
493 static inline struct mdd_object *lu2mdd_obj(struct lu_object *o)
495 LASSERT(ergo(o != NULL, lu_device_is_mdd(o->lo_dev)));
496 return container_of_safe(o, struct mdd_object,
500 static inline struct mdd_device *mdo2mdd(struct md_object *mdo)
502 return lu2mdd_dev(mdo->mo_lu.lo_dev);
505 static inline struct mdd_object *md2mdd_obj(struct md_object *mdo)
507 return container_of_safe(mdo, struct mdd_object, mod_obj);
511 struct dt_device_operations *mdd_child_ops(struct mdd_device *mdd)
513 return mdd->mdd_child->dd_ops;
516 static inline struct lu_object *mdd2lu_obj(struct mdd_object *obj)
518 return &obj->mod_obj.mo_lu;
521 static inline struct dt_object *mdd_object_child(struct mdd_object *obj)
523 return container_of(lu_object_next(mdd2lu_obj(obj)),
524 struct dt_object, do_lu);
527 static inline struct obd_device *mdd2obd_dev(struct mdd_device *mdd)
529 return (mdd->mdd_md_dev.md_lu_dev.ld_obd);
532 static inline struct mdd_device *mdd_obj2mdd_dev(struct mdd_object *obj)
534 return mdo2mdd(&obj->mod_obj);
537 static inline umode_t mdd_object_type(const struct mdd_object *mdd_obj)
539 return lu_object_attr(&mdd_obj->mod_obj.mo_lu);
542 static inline int mdd_is_dead_obj(struct mdd_object *mdd_obj)
544 return mdd_obj && mdd_obj->mod_flags & DEAD_OBJ;
547 static inline bool mdd_is_volatile_obj(struct mdd_object *mdd_obj)
549 return mdd_obj->mod_flags & VOLATILE_OBJ;
552 static inline bool mdd_is_orphan_obj(struct mdd_object *mdd_obj)
554 return mdd_obj->mod_flags & ORPHAN_OBJ;
557 static inline int mdd_object_exists(struct mdd_object *mdd_obj)
559 return lu_object_exists(mdd2lu_obj(mdd_obj));
562 static inline int mdd_object_remote(struct mdd_object *mdd_obj)
564 return lu_object_remote(mdd2lu_obj(mdd_obj));
567 static inline const struct lu_fid *mdd_object_fid(struct mdd_object *mdd_obj)
569 return lu_object_fid(mdd2lu_obj(mdd_obj));
572 static inline struct seq_server_site *mdd_seq_site(struct mdd_device *mdd)
574 return mdd2lu_dev(mdd)->ld_site->ld_seq_site;
577 static inline const char *mdd_obj_dev_name(const struct mdd_object *mdd_obj)
579 return lu_dev_name(mdd_obj->mod_obj.mo_lu.lo_dev);
582 #define MAX_ATIME_DIFF 60
584 static inline int mdd_permission_internal(const struct lu_env *env,
585 struct mdd_object *obj,
586 const struct lu_attr *la,
587 unsigned int may_mask)
589 return __mdd_permission_internal(env, obj, la, may_mask, -1);
592 static inline int mdd_permission_internal_locked(const struct lu_env *env,
593 struct mdd_object *obj,
594 const struct lu_attr *la,
595 unsigned int may_mask,
596 enum dt_object_role role)
598 return __mdd_permission_internal(env, obj, la, may_mask, role);
601 /* mdd inline func for calling osd_dt_object ops */
602 static inline int mdo_attr_get(const struct lu_env *env, struct mdd_object *obj,
605 struct dt_object *next = mdd_object_child(obj);
606 return dt_attr_get(env, next, la);
609 static inline int mdo_declare_attr_set(const struct lu_env *env,
610 struct mdd_object *obj,
611 const struct lu_attr *la,
612 struct thandle *handle)
614 struct dt_object *next = mdd_object_child(obj);
615 return dt_declare_attr_set(env, next, la, handle);
618 static inline int mdo_attr_set(const struct lu_env *env,
619 struct mdd_object *obj,
620 const struct lu_attr *la,
621 struct thandle *handle)
623 struct dt_object *next = mdd_object_child(obj);
625 if (!mdd_object_exists(obj))
628 return dt_attr_set(env, next, la, handle);
631 static inline int mdo_xattr_get(const struct lu_env *env,struct mdd_object *obj,
632 struct lu_buf *buf, const char *name)
634 struct dt_object *next = mdd_object_child(obj);
635 return dt_xattr_get(env, next, buf, name);
638 static inline int mdo_declare_xattr_set(const struct lu_env *env,
639 struct mdd_object *obj,
640 const struct lu_buf *buf,
642 int fl, struct thandle *handle)
644 struct dt_object *next = mdd_object_child(obj);
647 rc = dt_declare_xattr_set(env, next, buf, name, fl, handle);
649 (strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT) == 0 ||
650 strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT_OLD) == 0)) {
651 struct lu_attr la = { 0 };
653 la.la_valid = LA_FLAGS;
654 la.la_flags = LUSTRE_ENCRYPT_FL;
655 rc = dt_declare_attr_set(env, next, &la, handle);
660 static inline int mdo_xattr_set(const struct lu_env *env,struct mdd_object *obj,
661 const struct lu_buf *buf, const char *name,
662 int fl, struct thandle *handle)
664 struct dt_object *next = mdd_object_child(obj);
667 if (!mdd_object_exists(obj))
670 /* If we are about to set the LL_XATTR_NAME_ENCRYPTION_CONTEXT
671 * xattr, it means the file/dir is encrypted. In that case we want
672 * to set the LUSTRE_ENCRYPT_FL flag as well: it will be stored
673 * into the LMA, making it more efficient to recognise we are
674 * dealing with an encrypted file/dir, as LMA info is cached upon
676 * However, marking a dir as encrypted is only possible if it is
677 * being created or migrated (LU_XATTR_CREATE flag not set), or
680 if ((strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT) == 0 ||
681 strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT_OLD) == 0) &&
682 (!S_ISDIR(mdd_object_type(obj)) ||
683 !(fl & LU_XATTR_CREATE) ||
684 (rc = mdd_dir_is_empty(env, obj)) == 0)) {
685 struct lu_attr la = { 0 };
687 la.la_valid = LA_FLAGS;
688 la.la_flags = LUSTRE_ENCRYPT_FL;
689 /* if this is an old client using the old enc xattr name,
690 * switch to the new name for consistency
692 if (strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT_OLD) == 0)
693 name = LL_XATTR_NAME_ENCRYPTION_CONTEXT;
694 rc = dt_attr_set(env, next, &la, handle);
697 rc = dt_xattr_set(env, next, buf, name, fl, handle);
702 static inline int mdo_declare_xattr_del(const struct lu_env *env,
703 struct mdd_object *obj,
705 struct thandle *handle)
707 struct dt_object *next = mdd_object_child(obj);
708 return dt_declare_xattr_del(env, next, name, handle);
711 static inline int mdo_xattr_del(const struct lu_env *env,struct mdd_object *obj,
712 const char *name, struct thandle *handle)
714 struct dt_object *next = mdd_object_child(obj);
716 if (!mdd_object_exists(obj))
719 return dt_xattr_del(env, next, name, handle);
723 mdo_xattr_list(const struct lu_env *env, struct mdd_object *obj,
726 struct dt_object *next = mdd_object_child(obj);
728 if (!mdd_object_exists(obj))
731 return dt_xattr_list(env, next, buf);
735 mdo_invalidate(const struct lu_env *env, struct mdd_object *obj)
737 return dt_invalidate(env, mdd_object_child(obj));
741 mdo_declare_layout_change(const struct lu_env *env, struct mdd_object *obj,
742 struct md_layout_change *mlc, struct thandle *handle)
744 return dt_declare_layout_change(env, mdd_object_child(obj),
749 mdo_layout_change(const struct lu_env *env, struct mdd_object *obj,
750 struct md_layout_change *mlc, struct thandle *handle)
752 return dt_layout_change(env, mdd_object_child(obj), mlc, handle);
756 int mdo_declare_index_insert(const struct lu_env *env, struct mdd_object *obj,
757 const struct lu_fid *fid, __u32 type,
758 const char *name, struct thandle *handle)
760 struct dt_object *next = mdd_object_child(obj);
764 * if the object doesn't exist yet, then it's supposed to be created
765 * and declaration of the creation should be enough to insert ./..
769 if (dt_try_as_dir(env, next, false)) {
770 struct dt_insert_rec *rec = &mdd_env_info(env)->mdi_dt_rec;
773 rec->rec_type = type;
774 rc = dt_declare_insert(env, next, (const struct dt_rec *)rec,
775 (const struct dt_key *)name, handle);
782 int mdo_declare_index_delete(const struct lu_env *env, struct mdd_object *obj,
783 const char *name, struct thandle *handle)
785 struct dt_object *next = mdd_object_child(obj);
787 if (!dt_try_as_dir(env, next, true))
790 return dt_declare_delete(env, next, (const struct dt_key *)name,
794 static inline int mdo_declare_ref_add(const struct lu_env *env,
795 struct mdd_object *obj,
796 struct thandle *handle)
798 struct dt_object *next = mdd_object_child(obj);
799 return dt_declare_ref_add(env, next, handle);
802 static inline int mdo_ref_add(const struct lu_env *env, struct mdd_object *obj,
803 struct thandle *handle)
805 struct dt_object *next = mdd_object_child(obj);
807 if (!mdd_object_exists(obj))
810 return dt_ref_add(env, next, handle);
813 static inline int mdo_declare_ref_del(const struct lu_env *env,
814 struct mdd_object *obj,
815 struct thandle *handle)
817 struct dt_object *next = mdd_object_child(obj);
818 return dt_declare_ref_del(env, next, handle);
821 static inline int mdo_ref_del(const struct lu_env *env, struct mdd_object *obj,
822 struct thandle *handle)
824 struct dt_object *next = mdd_object_child(obj);
826 if (!mdd_object_exists(obj))
829 return dt_ref_del(env, next, handle);
833 mdo_declare_create_object(const struct lu_env *env, struct mdd_object *obj,
834 struct lu_attr *attr, struct dt_allocation_hint *hint,
835 struct dt_object_format *dof, struct thandle *handle)
837 struct dt_object *next = mdd_object_child(obj);
838 return dt_declare_create(env, next, attr, hint, dof, handle);
842 mdo_create_object(const struct lu_env *env, struct mdd_object *obj,
843 struct lu_attr *attr, struct dt_allocation_hint *hint,
844 struct dt_object_format *dof, struct thandle *handle)
846 struct dt_object *next = mdd_object_child(obj);
847 return dt_create(env, next, attr, hint, dof, handle);
851 int mdo_declare_destroy(const struct lu_env *env, struct mdd_object *o,
852 struct thandle *handle)
854 struct dt_object *next = mdd_object_child(o);
855 return dt_declare_destroy(env, next, handle);
859 int mdo_destroy(const struct lu_env *env, struct mdd_object *o,
860 struct thandle *handle)
862 struct dt_object *next = mdd_object_child(o);
863 return dt_destroy(env, next, handle);
866 static inline bool mdd_changelog_enabled(const struct lu_env *env,
867 struct mdd_device *mdd,
868 enum changelog_rec_type type)
870 const struct lu_ucred *uc;
872 if ((mdd->mdd_cl.mc_flags & CLM_ON) &&
873 (mdd->mdd_cl.mc_current_mask & BIT(type))) {
874 uc = lu_ucred_check(env);
876 return uc != NULL ? uc->uc_enable_audit : true;
882 static inline bool mdd_changelog_is_too_idle(struct mdd_device *mdd,
883 __u64 cl_rec, __u32 cl_time)
885 __u64 idle_indexes = mdd->mdd_cl.mc_index - cl_rec;
886 __u32 idle_time = (__u32)ktime_get_real_seconds() - cl_time;
888 return (idle_indexes > mdd->mdd_changelog_max_idle_indexes ||
889 idle_time > mdd->mdd_changelog_max_idle_time ||
890 idle_time * idle_indexes > (24 * 3600ULL << 32));
893 bool mdd_changelog_is_space_safe(const struct lu_env *env,
894 struct mdd_device *mdd,
895 struct llog_handle *lgh,
898 #define MAX_TRANS_RETRIED 20
901 mdd_write_lock_two_objects(const struct lu_env *env,
902 struct mdd_object *obj1,
903 struct mdd_object *obj2)
907 /* there shouldn't be callers with obj1 == NULL */
908 LASSERT(obj1 != NULL);
912 order = lu_fid_cmp(mdd_object_fid(obj1), mdd_object_fid(obj2));
913 if (unlikely(order == 0))
917 mdd_write_lock(env, obj1, DT_TGT_CHILD);
918 mdd_write_lock(env, obj2, DT_TGT_CHILD);
920 mdd_write_lock(env, obj2, DT_TGT_CHILD);
922 mdd_write_lock(env, obj1, DT_TGT_CHILD);
929 mdd_write_unlock_two_objects(const struct lu_env *env,
930 struct mdd_object *obj1,
931 struct mdd_object *obj2)
933 mdd_write_unlock(env, obj1);
935 mdd_write_unlock(env, obj2);