* Special per-transaction callback for cases when just commit callback
* is needed and per-device callback are not convenient to use
*/
+#define TRANS_COMMIT_CB_MAGIC 0xa0a00a0a
+#define MAX_COMMIT_CB_STR_LEN 32
+
struct dt_txn_commit_cb {
- cfs_list_t dcb_linkage;
- dt_cb_t dcb_func;
+ cfs_list_t dcb_linkage;
+ dt_cb_t dcb_func;
+ __u32 dcb_magic;
+ char dcb_name[MAX_COMMIT_CB_STR_LEN];
};
/**
/** index can be modified */
DT_IND_UPDATE = 1 << 2,
/** index supports records with non-unique (duplicate) keys */
- DT_IND_NONUNQ = 1 << 3
+ DT_IND_NONUNQ = 1 << 3,
+ /**
+ * index support fixed-size keys sorted with natural numerical way
+ * and is able to return left-side value if no exact value found
+ */
+ DT_IND_RANGE = 1 << 4,
};
/**
* names to fids).
*/
extern const struct dt_index_features dt_directory_features;
+extern const struct dt_index_features dt_otable_features;
+
+/* index features supported by the accounting objects */
+extern const struct dt_index_features dt_acct_features;
+
+/* index features supported by the quota global indexes */
+extern const struct dt_index_features dt_quota_glb_features;
+
+/* index features supported by the quota slave indexes */
+extern const struct dt_index_features dt_quota_slv_features;
/**
* This is a general purpose dt allocation hint.
void (*do_ah_init)(const struct lu_env *env,
struct dt_allocation_hint *ah,
struct dt_object *parent,
+ struct dt_object *child,
cfs_umode_t child_mode);
/**
* Create new object on this device.
} dio_it;
};
+enum dt_otable_it_valid {
+ DOIV_ERROR_HANDLE = 0x0001,
+};
+
+enum dt_otable_it_flags {
+ /* Exit when fail. */
+ DOIF_FAILOUT = 0x0001,
+
+ /* Reset iteration position to the device beginning. */
+ DOIF_RESET = 0x0002,
+
+ /* There is up layer component uses the iteration. */
+ DOIF_OUTUSED = 0x0004,
+};
+
+/* otable based iteration needs to use the common DT interation APIs.
+ * To initialize the iteration, it needs call dio_it::init() firstly.
+ * Here is how the otable based iteration should prepare arguments to
+ * call dt_it_ops::init().
+ *
+ * For otable based iteration, the 32-bits 'attr' for dt_it_ops::init()
+ * is composed of two parts:
+ * low 16-bits is for valid bits, high 16-bits is for flags bits. */
+#define DT_OTABLE_IT_FLAGS_SHIFT 16
+#define DT_OTABLE_IT_FLAGS_MASK 0xffff0000
+
struct dt_device {
struct lu_device dd_lu_dev;
const struct dt_device_operations *dd_ops;
const struct dt_index_operations *do_index_ops;
};
+/*
+ * In-core representation of per-device local object OID storage
+ */
+struct local_oid_storage {
+ /* all initialized llog systems on this node linked by this */
+ cfs_list_t los_list;
+
+ /* how many handle's reference this los has */
+ cfs_atomic_t los_refcount;
+ struct dt_device *los_dev;
+ struct dt_object *los_obj;
+
+ /* data used to generate new fids */
+ cfs_mutex_t los_id_lock;
+ __u64 los_seq;
+ __u32 los_last_oid;
+};
+
static inline struct dt_object *lu2dt(struct lu_object *l)
{
LASSERT(l == NULL || IS_ERR(l) || lu_device_is_dt(l->lo_dev));
const char *filename,
struct lu_fid *fid);
-struct dt_object *dt_locate(const struct lu_env *env,
- struct dt_device *dev,
- const struct lu_fid *fid);
+struct dt_object *dt_find_or_create(const struct lu_env *env,
+ struct dt_device *dt,
+ const struct lu_fid *fid,
+ struct dt_object_format *dof,
+ struct lu_attr *attr);
+
+struct dt_object *dt_locate_at(const struct lu_env *env,
+ struct dt_device *dev,
+ const struct lu_fid *fid,
+ struct lu_device *top_dev);
+static inline struct dt_object *
+dt_locate(const struct lu_env *env, struct dt_device *dev,
+ const struct lu_fid *fid)
+{
+ return dt_locate_at(env, dev, fid, dev->dd_lu_dev.ld_site->ls_top_dev);
+}
+
+
+int local_oid_storage_init(const struct lu_env *env, struct dt_device *dev,
+ const struct lu_fid *first_fid,
+ struct local_oid_storage **los);
+void local_oid_storage_fini(const struct lu_env *env,
+ struct local_oid_storage *los);
+int local_object_fid_generate(const struct lu_env *env,
+ struct local_oid_storage *los,
+ struct lu_fid *fid);
+int local_object_declare_create(const struct lu_env *env,
+ struct local_oid_storage *los,
+ struct dt_object *o,
+ struct lu_attr *attr,
+ struct dt_object_format *dof,
+ struct thandle *th);
+int local_object_create(const struct lu_env *env,
+ struct local_oid_storage *los,
+ struct dt_object *o,
+ struct lu_attr *attr, struct dt_object_format *dof,
+ struct thandle *th);
+struct dt_object *local_file_find_or_create(const struct lu_env *env,
+ struct local_oid_storage *los,
+ struct dt_object *parent,
+ const char *name, __u32 mode);
+struct dt_object *local_file_find_or_create_with_fid(const struct lu_env *env,
+ struct dt_device *dt,
+ const struct lu_fid *fid,
+ struct dt_object *parent,
+ const char *name,
+ __u32 mode);
+struct dt_object *
+local_index_find_or_create(const struct lu_env *env,
+ struct local_oid_storage *los,
+ struct dt_object *parent,
+ const char *name, __u32 mode,
+ const struct dt_index_features *ft);
+struct dt_object *
+local_index_find_or_create_with_fid(const struct lu_env *env,
+ struct dt_device *dt,
+ const struct lu_fid *fid,
+ struct dt_object *parent,
+ const char *name, __u32 mode,
+ const struct dt_index_features *ft);
+
+int dt_lookup_dir(const struct lu_env *env, struct dt_object *dir,
+ const char *name, struct lu_fid *fid);
+
+static inline int dt_object_sync(const struct lu_env *env,
+ struct dt_object *o)
+{
+ LASSERT(o);
+ LASSERT(o->do_ops);
+ LASSERT(o->do_ops->do_object_sync);
+ return o->do_ops->do_object_sync(env, o);
+}
int dt_declare_version_set(const struct lu_env *env, struct dt_object *o,
struct thandle *th);
struct lu_buf *buf, loff_t *pos);
int dt_record_write(const struct lu_env *env, struct dt_object *dt,
const struct lu_buf *buf, loff_t *pos, struct thandle *th);
+typedef int (*dt_index_page_build_t)(const struct lu_env *env,
+ union lu_page *lp, int nob,
+ const struct dt_it_ops *iops,
+ struct dt_it *it, __u32 attr, void *arg);
+int dt_index_walk(const struct lu_env *env, struct dt_object *obj,
+ const struct lu_rdpg *rdpg, dt_index_page_build_t filler,
+ void *arg);
+int dt_index_read(const struct lu_env *env, struct dt_device *dev,
+ struct idx_info *ii, const struct lu_rdpg *rdpg);
static inline struct thandle *dt_trans_create(const struct lu_env *env,
struct dt_device *d)
}
static inline int dt_trans_cb_add(struct thandle *th,
- struct dt_txn_commit_cb *dcb)
+ struct dt_txn_commit_cb *dcb)
{
- LASSERT(th->th_dev->dd_ops->dt_trans_cb_add);
- return th->th_dev->dd_ops->dt_trans_cb_add(th, dcb);
+ LASSERT(th->th_dev->dd_ops->dt_trans_cb_add);
+ dcb->dcb_magic = TRANS_COMMIT_CB_MAGIC;
+ return th->th_dev->dd_ops->dt_trans_cb_add(th, dcb);
}
/** @} dt */
LASSERT(d);
if (d->do_body_ops == NULL)
return -EPROTO;
- LASSERT(d->do_body_ops->dbo_fiemap_get);
+ if (d->do_body_ops->dbo_fiemap_get == NULL)
+ return -EOPNOTSUPP;
return d->do_body_ops->dbo_fiemap_get(env, d, fm);
}
return dev->dd_ops->dt_commit_async(env, dev);
}
+static inline int dt_init_capa_ctxt(const struct lu_env *env,
+ struct dt_device *dev,
+ int mode, unsigned long timeout,
+ __u32 alg, struct lustre_capa_key *keys)
+{
+ LASSERT(dev);
+ LASSERT(dev->dd_ops);
+ LASSERT(dev->dd_ops->dt_init_capa_ctxt);
+ return dev->dd_ops->dt_init_capa_ctxt(env, dev, mode,
+ timeout, alg, keys);
+}
+
static inline int dt_lookup(const struct lu_env *env,
struct dt_object *dt,
struct dt_rec *rec,
ret = -ENOENT;
return ret;
}
+
+#define LU221_BAD_TIME (0x80000000U + 24 * 3600)
+
+struct dt_find_hint {
+ struct lu_fid *dfh_fid;
+ struct dt_device *dfh_dt;
+ struct dt_object *dfh_o;
+};
+
+struct dt_thread_info {
+ char dti_buf[DT_MAX_PATH];
+ struct dt_find_hint dti_dfh;
+ struct lu_attr dti_attr;
+ struct lu_fid dti_fid;
+ struct dt_object_format dti_dof;
+ struct lustre_mdt_attrs dti_lma;
+ struct lu_buf dti_lb;
+ loff_t dti_off;
+};
+
+extern struct lu_context_key dt_key;
+
+static inline struct dt_thread_info *dt_info(const struct lu_env *env)
+{
+ struct dt_thread_info *dti;
+
+ dti = lu_context_key_get(&env->le_ctx, &dt_key);
+ LASSERT(dti);
+ return dti;
+}
+
#endif /* __LUSTRE_DT_OBJECT_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff