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35 * This file is part of Lustre, http://www.lustre.org/
36 * Lustre is a trademark of Sun Microsystems, Inc.
38 * lustre/osd-zfs/osd_internal.h
39 * Shared definitions and declarations for zfs/dmu osd
41 * Author: Alex Zhuravlev <bzzz@whamcloud.com>
42 * Author: Mike Pershin <tappro@whamcloud.com>
43 * Author: Johann Lombardi <johann@whamcloud.com>
46 #ifndef _OSD_INTERNAL_H
47 #define _OSD_INTERNAL_H
49 #include <dt_object.h>
50 #include <lustre_quota.h>
53 #include <sys/nvpair.h>
57 #define LUSTRE_ROOT_FID_SEQ 0
58 #define DMU_OSD_SVNAME "svname"
59 #define DMU_OSD_OI_NAME_BASE "oi"
61 #define OSD_GFP_IO (GFP_NOFS | __GFP_HIGHMEM)
64 * Iterator's in-memory data structure for quota file.
67 struct osd_object *oiq_obj;
68 /* DMU accounting object id */
72 /** identifier for current quota record */
74 unsigned oiq_reset:1; /* 1 -- no need to advance */
78 * Iterator's in-memory data structure for ZAPs
82 struct osd_object *ozi_obj;
83 struct lustre_capa *ozi_capa;
84 unsigned ozi_reset:1; /* 1 -- no need to advance */
86 char ozi_name[NAME_MAX + 1]; /* file name for dir */
87 __u64 ozi_key; /* binary key for index files */
90 #define DT_IT2DT(it) (&((struct osd_zap_it *)it)->ozi_obj->oo_dt)
93 * regular ZFS direntry
96 uint64_t zde_dnode:48,
99 } __attribute__((packed));
102 * lustre direntry adds a fid to regular ZFS direntry
104 struct luz_direntry {
105 struct zpl_direntry lzd_reg;
106 struct lu_fid lzd_fid;
107 } __attribute__((packed));
110 /* cached SA attributes */
124 struct osd_thread_info {
125 const struct lu_env *oti_env;
127 struct lu_fid oti_fid;
129 * XXX temporary: for ->i_op calls.
131 struct timespec oti_time;
133 * XXX temporary: for capa operations.
135 struct lustre_capa_key oti_capa_key;
136 struct lustre_capa oti_capa;
138 struct ost_id oti_ostid;
142 /** osd iterator context used for iterator session */
144 struct osd_zap_it oti_it_zap;
145 struct osd_it_quota oti_it_quota;
149 char oti_key[MAXNAMELEN + 1];
150 struct lustre_mdt_attrs oti_mdt_attrs;
152 struct lu_attr oti_la;
153 struct osa_attr oti_osa;
154 zap_attribute_t oti_za;
155 dmu_object_info_t oti_doi;
156 struct luz_direntry oti_zde;
158 struct lquota_id_info oti_qi;
161 extern struct lu_context_key osd_key;
163 static inline struct osd_thread_info *osd_oti_get(const struct lu_env *env)
165 return lu_context_key_get(&env->le_ctx, &osd_key);
169 struct thandle ot_super;
170 cfs_list_t ot_dcb_list;
171 cfs_list_t ot_sa_list;
172 cfs_semaphore_t ot_sa_lock;
174 struct lquota_trans ot_quota_trans;
175 __u32 ot_write_commit:1,
179 #define OSD_OI_NAME_SIZE 16
182 * Object Index (OI) instance.
185 char oi_name[OSD_OI_NAME_SIZE]; /* unused */
189 #define OSD_OST_MAP_SIZE 32
196 struct dt_device od_dt_dev;
197 /* information about underlying file system */
198 udmu_objset_t od_objset;
203 unsigned int od_fl_capa:1;
204 unsigned long od_capa_timeout;
206 struct lustre_capa_key *od_capa_keys;
207 cfs_hlist_head_t *od_capa_hash;
209 cfs_proc_dir_entry_t *od_proc_entry;
210 struct lprocfs_stats *od_stats;
213 struct osd_oi **od_oi_table;
214 unsigned int od_oi_count;
215 uint64_t od_ost_compat_dirs[OSD_OST_MAP_SIZE];
216 uint64_t od_ost_compat_grp0;
218 unsigned int od_rdonly:1,
220 od_quota_iused_est:1;
225 struct lu_site od_site;
227 /* object IDs of the inode accounting indexes */
228 uint64_t od_iusr_oid;
229 uint64_t od_igrp_oid;
231 /* quota slave instance */
232 struct qsd_instance *od_quota_slave;
234 /* used to debug zerocopy logic: the fields track all
235 * allocated, loaned and referenced buffers in use.
236 * to be removed once the change is tested well. */
237 cfs_atomic_t od_zerocopy_alloc;
238 cfs_atomic_t od_zerocopy_loan;
239 cfs_atomic_t od_zerocopy_pin;
241 arc_prune_t *arc_prune_cb;
245 struct dt_object oo_dt;
247 * Inode for file system object represented by this osd_object. This
248 * inode is pinned for the whole duration of lu_object life.
250 * Not modified concurrently (either setup early during object
251 * creation, or assigned by osd_object_create() under write lock).
254 sa_handle_t *oo_sa_hdl;
255 nvlist_t *oo_sa_xattr;
256 cfs_list_t oo_sa_linkage;
258 cfs_rw_semaphore_t oo_sem;
260 /* cached attributes */
261 cfs_rwlock_t oo_attr_lock;
262 struct lu_attr oo_attr;
264 /* protects extended attributes */
265 cfs_semaphore_t oo_guard;
268 /* record size for index file */
272 int osd_statfs(const struct lu_env *, struct dt_device *, struct obd_statfs *);
273 extern const struct dt_index_operations osd_acct_index_ops;
274 uint64_t osd_quota_fid2dmu(const struct lu_fid *fid);
275 extern struct lu_device_operations osd_lu_ops;
276 int osd_declare_quota(const struct lu_env *env, struct osd_device *osd,
277 qid_t uid, qid_t gid, long long space,
278 struct osd_thandle *oh, bool is_blk, int *flags,
284 static inline int lu_device_is_osd(const struct lu_device *d)
286 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osd_lu_ops);
289 static inline struct osd_object *osd_obj(const struct lu_object *o)
291 LASSERT(lu_device_is_osd(o->lo_dev));
292 return container_of0(o, struct osd_object, oo_dt.do_lu);
295 static inline struct osd_device *osd_dt_dev(const struct dt_device *d)
297 LASSERT(lu_device_is_osd(&d->dd_lu_dev));
298 return container_of0(d, struct osd_device, od_dt_dev);
301 static inline struct osd_device *osd_dev(const struct lu_device *d)
303 LASSERT(lu_device_is_osd(d));
304 return osd_dt_dev(container_of0(d, struct dt_device, dd_lu_dev));
307 static inline struct osd_object *osd_dt_obj(const struct dt_object *d)
309 return osd_obj(&d->do_lu);
312 static inline struct osd_device *osd_obj2dev(const struct osd_object *o)
314 return osd_dev(o->oo_dt.do_lu.lo_dev);
317 static inline struct lu_device *osd2lu_dev(struct osd_device *osd)
319 return &osd->od_dt_dev.dd_lu_dev;
322 static inline struct objset * osd_dtobj2objset(struct dt_object *o)
324 return osd_dev(o->do_lu.lo_dev)->od_objset.os;
327 static inline int osd_invariant(const struct osd_object *obj)
332 static inline int osd_object_invariant(const struct lu_object *l)
334 return osd_invariant(osd_obj(l));
340 LPROC_OSD_READ_BYTES = 0,
341 LPROC_OSD_WRITE_BYTES = 1,
342 LPROC_OSD_GET_PAGE = 2,
343 LPROC_OSD_NO_PAGE = 3,
344 LPROC_OSD_CACHE_ACCESS = 4,
345 LPROC_OSD_CACHE_HIT = 5,
346 LPROC_OSD_CACHE_MISS = 6,
347 LPROC_OSD_COPY_IO = 7,
348 LPROC_OSD_ZEROCOPY_IO = 8,
349 LPROC_OSD_TAIL_IO = 9,
354 extern struct lprocfs_vars lprocfs_osd_obd_vars[];
355 extern struct lprocfs_vars lprocfs_osd_module_vars[];
357 int osd_procfs_init(struct osd_device *osd, const char *name);
358 int osd_procfs_fini(struct osd_device *osd);
360 int udmu_zap_cursor_retrieve_key(const struct lu_env *env,
361 zap_cursor_t *zc, char *key, int max);
362 int udmu_zap_cursor_retrieve_value(const struct lu_env *env,
363 zap_cursor_t *zc, char *buf,
364 int buf_size, int *bytes_read);
367 void osd_object_sa_dirty_rele(struct osd_thandle *oh);
368 int __osd_obj2dbuf(const struct lu_env *env, objset_t *os,
369 uint64_t oid, dmu_buf_t **dbp, void *tag);
370 struct lu_object *osd_object_alloc(const struct lu_env *env,
371 const struct lu_object_header *hdr,
372 struct lu_device *d);
373 int osd_object_sa_update(struct osd_object *obj, sa_attr_type_t type,
374 void *buf, uint32_t buflen, struct osd_thandle *oh);
375 int __osd_zap_create(const struct lu_env *env, udmu_objset_t *uos,
376 dmu_buf_t **zap_dbp, dmu_tx_t *tx,
377 struct lu_attr *la, void *tag, zap_flags_t flags);
378 int __osd_object_create(const struct lu_env *env, udmu_objset_t *uos,
379 dmu_buf_t **dbp, dmu_tx_t *tx,
380 struct lu_attr *la, void *tag);
381 int __osd_object_free(udmu_objset_t *uos, uint64_t oid, dmu_tx_t *tx);
384 int osd_oi_init(const struct lu_env *env, struct osd_device *o);
385 void osd_oi_fini(const struct lu_env *env, struct osd_device *o);
386 int osd_fid_lookup(const struct lu_env *env,
387 struct osd_device *, const struct lu_fid *, uint64_t *);
388 uint64_t osd_get_name_n_idx(const struct lu_env *env, struct osd_device *osd,
389 const struct lu_fid *fid, char *buf);
390 int osd_options_init(void);
393 int osd_index_try(const struct lu_env *env, struct dt_object *dt,
394 const struct dt_index_features *feat);
398 int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
399 struct lu_buf *buf, const char *name,
400 struct lustre_capa *capa);
401 int osd_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
402 const struct lu_buf *buf, const char *name,
403 int fl, struct thandle *handle);
404 int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
405 const struct lu_buf *buf, const char *name, int fl,
406 struct thandle *handle, struct lustre_capa *capa);
407 int osd_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
408 const char *name, struct thandle *handle);
409 int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
410 const char *name, struct thandle *handle,
411 struct lustre_capa *capa);
412 int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
413 struct lu_buf *lb, struct lustre_capa *capa);
414 void __osd_xattr_declare_set(const struct lu_env *env, struct osd_object *obj,
415 int vallen, const char *name, struct osd_thandle *oh);
416 int __osd_sa_xattr_set(const struct lu_env *env, struct osd_object *obj,
417 const struct lu_buf *buf, const char *name, int fl,
418 struct osd_thandle *oh);;
419 int __osd_xattr_set(const struct lu_env *env, struct osd_object *obj,
420 const struct lu_buf *buf, const char *name, int fl,
421 struct osd_thandle *oh);
423 osd_xattr_set_internal(const struct lu_env *env, struct osd_object *obj,
424 const struct lu_buf *buf, const char *name, int fl,
425 struct osd_thandle *oh, struct lustre_capa *capa)
429 if (osd_obj2dev(obj)->od_xattr_in_sa) {
430 rc = __osd_sa_xattr_set(env, obj, buf, name, fl, oh);
432 rc = __osd_xattr_set(env, obj, buf, name, fl, oh);
434 rc = __osd_xattr_set(env, obj, buf, name, fl, oh);
441 #endif /* _OSD_INTERNAL_H */