};
enum dt_index_flags {
- /** index supports variable sized keys */
- DT_IND_VARKEY = 1 << 0,
- /** index supports variable sized records */
- DT_IND_VARREC = 1 << 1,
- /** index can be modified */
- DT_IND_UPDATE = 1 << 2,
- /** index supports records with non-unique (duplicate) keys */
- 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,
+ /** index supports variable sized keys */
+ DT_IND_VARKEY = BIT(0),
+ /** index supports variable sized records */
+ DT_IND_VARREC = BIT(1),
+ /** index can be modified */
+ DT_IND_UPDATE = BIT(2),
+ /** index supports records with non-unique (duplicate) keys */
+ DT_IND_NONUNQ = BIT(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 = BIT(4),
};
/* for dt_read_lock() and dt_write_lock() object lock rule */
* then the method should maintain space accounting for the given
* credentials.
*
+ * user_size parameter is the apparent size of the file, ie the size
+ * of the clear text version of the file. It can differ from the actual
+ * amount of valuable data received when a file is encrypted,
+ * because encrypted pages always contain PAGE_SIZE bytes of data,
+ * even if clear text data is only a few bytes.
+ * In case of encrypted file, apparent size will be stored as the inode
+ * size, so that servers return to clients an object size they can use
+ * to determine clear text size.
+ *
* \param[in] env execution environment for this thread
* \param[in] dt object
* \param[in] lb array of descriptors for the buffers
* \param[in] nr size of the array
* \param[in] th transaction handle
+ * \param[in] user_size apparent size
*
* \retval 0 on success
* \retval negative negated errno on error
struct dt_object *dt,
struct niobuf_local *lb,
int nr,
- struct thandle *th);
+ struct thandle *th,
+ __u64 user_size);
/**
* Return logical to physical block mapping for a given extent
__u64 start,
__u64 end,
enum lu_ladvise_type advice);
+
+ /**
+ * Declare intention to preallocate space for an object
+ *
+ * \param[in] env execution environment for this thread
+ * \param[in] dt object
+ * \param[in] th transaction handle
+ *
+ * \retval 0 on success
+ * \retval negative negated errno on error
+ */
+ int (*dbo_declare_fallocate)(const struct lu_env *env,
+ struct dt_object *dt,
+ struct thandle *th);
+ /**
+ * Allocate specified region for an object
+ *
+ * \param[in] env execution environment for this thread
+ * \param[in] dt object
+ * \param[in] start the start of the region to allocate
+ * \param[in] end the end of the region to allocate
+ * \param[in] mode fallocate mode
+ * \param[in] th transaction handle
+ *
+ * \retval 0 on success
+ * \retval negative negated errno on error
+ */
+ int (*dbo_fallocate)(const struct lu_env *env,
+ struct dt_object *dt,
+ __u64 start,
+ __u64 end,
+ int mode,
+ struct thandle *th);
};
/**
static inline struct dt_device * lu2dt_dev(struct lu_device *l)
{
- LASSERT(lu_device_is_dt(l));
- return container_of0(l, struct dt_device, dd_lu_dev);
+ LASSERT(lu_device_is_dt(l));
+ return container_of_safe(l, struct dt_device, dd_lu_dev);
}
struct dt_object {
static inline struct dt_object *lu2dt(struct lu_object *l)
{
- LASSERT(l == NULL || IS_ERR(l) || lu_device_is_dt(l->lo_dev));
- return container_of0(l, struct dt_object, do_lu);
+ LASSERT(l == NULL || IS_ERR(l) || lu_device_is_dt(l->lo_dev));
+ return container_of_safe(l, struct dt_object, do_lu);
}
int dt_object_init(struct dt_object *obj,
static inline struct dt_object *lu2dt_obj(struct lu_object *o)
{
LASSERT(ergo(o != NULL, lu_device_is_dt(o->lo_dev)));
- return container_of0(o, struct dt_object, do_lu);
+ return container_of_safe(o, struct dt_object, do_lu);
}
static inline struct dt_object *dt_object_child(struct dt_object *o)
{
- return container_of0(lu_object_next(&(o)->do_lu),
- struct dt_object, do_lu);
+ return container_of(lu_object_next(&(o)->do_lu),
+ struct dt_object, do_lu);
}
/**
return o->do_ops->do_object_sync(env, o, start, end);
}
+static inline int dt_fid_alloc(const struct lu_env *env,
+ struct dt_device *d,
+ struct lu_fid *fid,
+ struct lu_object *parent,
+ const struct lu_name *name)
+{
+ struct lu_device *l = dt2lu_dev(d);
+
+ return l->ld_ops->ldo_fid_alloc(env, l, fid, parent, name);
+}
+
int dt_declare_version_set(const struct lu_env *env, struct dt_object *o,
struct thandle *th);
void dt_version_set(const struct lu_env *env, struct dt_object *o,
static inline int dt_write_commit(const struct lu_env *env,
- struct dt_object *d, struct niobuf_local *lnb,
- int n, struct thandle *th)
+ struct dt_object *d, struct niobuf_local *lnb,
+ int n, struct thandle *th, __u64 size)
{
- LASSERT(d);
- LASSERT(d->do_body_ops);
- LASSERT(d->do_body_ops->dbo_write_commit);
- return d->do_body_ops->dbo_write_commit(env, d, lnb, n, th);
+ LASSERT(d);
+ LASSERT(d->do_body_ops);
+ LASSERT(d->do_body_ops->dbo_write_commit);
+ return d->do_body_ops->dbo_write_commit(env, d, lnb, n, th, size);
}
static inline int dt_read_prep(const struct lu_env *env, struct dt_object *d,
return dt->do_body_ops->dbo_ladvise(env, dt, start, end, advice);
}
+static inline int dt_declare_falloc(const struct lu_env *env,
+ struct dt_object *dt, struct thandle *th)
+{
+ LASSERT(dt);
+ if (!dt->do_body_ops)
+ return -EOPNOTSUPP;
+ LASSERT(dt->do_body_ops);
+ LASSERT(dt->do_body_ops->dbo_declare_fallocate);
+ return dt->do_body_ops->dbo_declare_fallocate(env, dt, th);
+}
+
+static inline int dt_falloc(const struct lu_env *env, struct dt_object *dt,
+ __u64 start, __u64 end, int mode,
+ struct thandle *th)
+{
+ LASSERT(dt);
+ if (!dt->do_body_ops)
+ return -EOPNOTSUPP;
+ LASSERT(dt->do_body_ops);
+ LASSERT(dt->do_body_ops->dbo_fallocate);
+ return dt->do_body_ops->dbo_fallocate(env, dt, start, end, mode, th);
+}
+
static inline int dt_fiemap_get(const struct lu_env *env, struct dt_object *d,
struct fiemap *fm)
{
git://git.whamcloud.com / fs / lustre-release.git / blobdiff