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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>
52 #include <sys/nvpair.h>
56 #define LUSTRE_ROOT_FID_SEQ 0
57 #define DMU_OSD_SVNAME "svname"
58 #define DMU_OSD_OI_NAME_BASE "oi"
60 #define OSD_GFP_IO (GFP_NOFS | __GFP_HIGHMEM)
63 * Iterator's in-memory data structure for quota file.
66 struct osd_object *oiq_obj;
67 /* DMU accounting object id */
71 /** identifier for current quota record */
73 unsigned oiq_reset:1; /* 1 -- no need to advance */
77 * Iterator's in-memory data structure for ZAPs
81 struct osd_object *ozi_obj;
82 struct lustre_capa *ozi_capa;
83 unsigned ozi_reset:1; /* 1 -- no need to advance */
85 char ozi_name[NAME_MAX + 1]; /* file name for dir */
86 __u64 ozi_key; /* binary key for index files */
89 #define DT_IT2DT(it) (&((struct osd_zap_it *)it)->ozi_obj->oo_dt)
92 * regular ZFS direntry
95 uint64_t zde_dnode:48,
98 } __attribute__((packed));
101 * lustre direntry adds a fid to regular ZFS direntry
103 struct luz_direntry {
104 struct zpl_direntry lzd_reg;
105 struct lu_fid lzd_fid;
106 } __attribute__((packed));
109 /* cached SA attributes */
123 struct osd_thread_info {
124 const struct lu_env *oti_env;
126 struct lu_fid oti_fid;
128 * XXX temporary: for ->i_op calls.
130 struct timespec oti_time;
132 * XXX temporary: for capa operations.
134 struct lustre_capa_key oti_capa_key;
135 struct lustre_capa oti_capa;
137 struct ost_id oti_ostid;
141 /** osd iterator context used for iterator session */
143 struct osd_zap_it oti_it_zap;
144 struct osd_it_quota oti_it_quota;
148 char oti_key[MAXNAMELEN + 1];
150 struct lu_attr oti_la;
151 struct osa_attr oti_osa;
152 zap_attribute_t oti_za;
153 dmu_object_info_t oti_doi;
154 struct luz_direntry oti_zde;
157 extern struct lu_context_key osd_key;
159 static inline struct osd_thread_info *osd_oti_get(const struct lu_env *env)
161 return lu_context_key_get(&env->le_ctx, &osd_key);
165 struct thandle ot_super;
166 cfs_list_t ot_dcb_list;
167 cfs_list_t ot_sa_list;
168 cfs_semaphore_t ot_sa_lock;
170 __u32 ot_write_commit:1,
174 #define OSD_OI_NAME_SIZE 16
177 * Object Index (OI) instance.
180 char oi_name[OSD_OI_NAME_SIZE]; /* unused */
184 #define OSD_OST_MAP_SIZE 32
191 struct dt_device od_dt_dev;
192 /* information about underlying file system */
193 udmu_objset_t od_objset;
198 unsigned int od_fl_capa:1;
199 unsigned long od_capa_timeout;
201 struct lustre_capa_key *od_capa_keys;
202 cfs_hlist_head_t *od_capa_hash;
204 cfs_proc_dir_entry_t *od_proc_entry;
205 struct lprocfs_stats *od_stats;
208 struct osd_oi **od_oi_table;
209 unsigned int od_oi_count;
210 uint64_t od_ost_compat_dirs[OSD_OST_MAP_SIZE];
211 uint64_t od_ost_compat_grp0;
213 unsigned int od_rdonly:1,
214 od_quota_iused_est:1;
219 struct lu_site od_site;
221 /* object IDs of the inode accounting indexes */
222 uint64_t od_iusr_oid;
223 uint64_t od_igrp_oid;
225 /* used to debug zerocopy logic: the fields track all
226 * allocated, loaned and referenced buffers in use.
227 * to be removed once the change is tested well. */
228 cfs_atomic_t od_zerocopy_alloc;
229 cfs_atomic_t od_zerocopy_loan;
230 cfs_atomic_t od_zerocopy_pin;
232 arc_prune_t *arc_prune_cb;
236 struct dt_object oo_dt;
238 * Inode for file system object represented by this osd_object. This
239 * inode is pinned for the whole duration of lu_object life.
241 * Not modified concurrently (either setup early during object
242 * creation, or assigned by osd_object_create() under write lock).
245 sa_handle_t *oo_sa_hdl;
246 nvlist_t *oo_sa_xattr;
247 cfs_list_t oo_sa_linkage;
249 cfs_rw_semaphore_t oo_sem;
251 /* cached attributes */
252 cfs_rwlock_t oo_attr_lock;
253 struct lu_attr oo_attr;
255 /* protects extended attributes */
256 cfs_semaphore_t oo_guard;
259 /* record size for index file */
263 int osd_statfs(const struct lu_env *, struct dt_device *, struct obd_statfs *);
264 extern const struct dt_index_operations osd_acct_index_ops;
265 uint64_t osd_quota_fid2dmu(const struct lu_fid *fid);
266 extern struct lu_device_operations osd_lu_ops;
271 static inline int lu_device_is_osd(const struct lu_device *d)
273 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osd_lu_ops);
276 static inline struct osd_object *osd_obj(const struct lu_object *o)
278 LASSERT(lu_device_is_osd(o->lo_dev));
279 return container_of0(o, struct osd_object, oo_dt.do_lu);
282 static inline struct osd_device *osd_dt_dev(const struct dt_device *d)
284 LASSERT(lu_device_is_osd(&d->dd_lu_dev));
285 return container_of0(d, struct osd_device, od_dt_dev);
288 static inline struct osd_device *osd_dev(const struct lu_device *d)
290 LASSERT(lu_device_is_osd(d));
291 return osd_dt_dev(container_of0(d, struct dt_device, dd_lu_dev));
294 static inline struct osd_object *osd_dt_obj(const struct dt_object *d)
296 return osd_obj(&d->do_lu);
299 static inline struct osd_device *osd_obj2dev(const struct osd_object *o)
301 return osd_dev(o->oo_dt.do_lu.lo_dev);
304 static inline struct lu_device *osd2lu_dev(struct osd_device *osd)
306 return &osd->od_dt_dev.dd_lu_dev;
309 static inline struct objset * osd_dtobj2objset(struct dt_object *o)
311 return osd_dev(o->do_lu.lo_dev)->od_objset.os;
314 static inline int osd_invariant(const struct osd_object *obj)
319 static inline int osd_object_invariant(const struct lu_object *l)
321 return osd_invariant(osd_obj(l));
327 LPROC_OSD_READ_BYTES = 0,
328 LPROC_OSD_WRITE_BYTES = 1,
329 LPROC_OSD_GET_PAGE = 2,
330 LPROC_OSD_NO_PAGE = 3,
331 LPROC_OSD_CACHE_ACCESS = 4,
332 LPROC_OSD_CACHE_HIT = 5,
333 LPROC_OSD_CACHE_MISS = 6,
334 LPROC_OSD_COPY_IO = 7,
335 LPROC_OSD_ZEROCOPY_IO = 8,
336 LPROC_OSD_TAIL_IO = 9,
341 extern struct lprocfs_vars lprocfs_osd_obd_vars[];
342 extern struct lprocfs_vars lprocfs_osd_module_vars[];
344 int osd_procfs_init(struct osd_device *osd, const char *name);
345 int osd_procfs_fini(struct osd_device *osd);
347 int udmu_zap_cursor_retrieve_key(const struct lu_env *env,
348 zap_cursor_t *zc, char *key, int max);
349 int udmu_zap_cursor_retrieve_value(const struct lu_env *env,
350 zap_cursor_t *zc, char *buf,
351 int buf_size, int *bytes_read);
354 void osd_object_sa_dirty_rele(struct osd_thandle *oh);
355 int __osd_obj2dbuf(const struct lu_env *env, objset_t *os,
356 uint64_t oid, dmu_buf_t **dbp, void *tag);
357 struct lu_object *osd_object_alloc(const struct lu_env *env,
358 const struct lu_object_header *hdr,
359 struct lu_device *d);
360 int osd_object_sa_update(struct osd_object *obj, sa_attr_type_t type,
361 void *buf, uint32_t buflen, struct osd_thandle *oh);
362 int __osd_zap_create(const struct lu_env *env, udmu_objset_t *uos,
363 dmu_buf_t **zap_dbp, dmu_tx_t *tx,
364 struct lu_attr *la, void *tag, zap_flags_t flags);
365 int __osd_object_create(const struct lu_env *env, udmu_objset_t *uos,
366 dmu_buf_t **dbp, dmu_tx_t *tx,
367 struct lu_attr *la, void *tag);
368 int __osd_object_free(udmu_objset_t *uos, uint64_t oid, dmu_tx_t *tx);
371 int osd_oi_init(const struct lu_env *env, struct osd_device *o);
372 void osd_oi_fini(const struct lu_env *env, struct osd_device *o);
373 int osd_fid_lookup(const struct lu_env *env,
374 struct osd_device *, const struct lu_fid *, uint64_t *);
375 uint64_t osd_get_name_n_idx(const struct lu_env *env, struct osd_device *osd,
376 const struct lu_fid *fid, char *buf);
377 int osd_options_init(void);
380 int osd_index_try(const struct lu_env *env, struct dt_object *dt,
381 const struct dt_index_features *feat);
385 int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
386 struct lu_buf *buf, const char *name,
387 struct lustre_capa *capa);
388 int osd_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
389 const struct lu_buf *buf, const char *name,
390 int fl, struct thandle *handle);
391 int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
392 const struct lu_buf *buf, const char *name, int fl,
393 struct thandle *handle, struct lustre_capa *capa);
394 int osd_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
395 const char *name, struct thandle *handle);
396 int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
397 const char *name, struct thandle *handle,
398 struct lustre_capa *capa);
399 int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
400 struct lu_buf *lb, struct lustre_capa *capa);
403 #endif /* _OSD_INTERNAL_H */