key_rec);
}
-static struct dt_index_operations lod_index_ops = {
+static const struct dt_index_operations lod_index_ops = {
.dio_lookup = lod_lookup,
.dio_declare_insert = lod_declare_insert,
.dio_insert = lod_insert,
};
/**
+ * Implementation of dt_index_operations::dio_lookup
+ *
+ * Used with striped directories.
+ *
+ * \see dt_index_operations::dio_lookup() in the API description for details.
+ */
+static int lod_striped_lookup(const struct lu_env *env, struct dt_object *dt,
+ struct dt_rec *rec, const struct dt_key *key)
+{
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next;
+ const char *name = (const char *)key;
+
+ LASSERT(lo->ldo_dir_stripe_count > 0);
+
+ if (strcmp(name, dot) == 0) {
+ struct lu_fid *fid = (struct lu_fid *)rec;
+
+ *fid = *lod_object_fid(lo);
+ return 1;
+ }
+
+ if (strcmp(name, dotdot) == 0) {
+ next = dt_object_child(dt);
+ } else {
+ int index;
+
+ index = __lmv_name_to_stripe_index(lo->ldo_dir_hash_type,
+ lo->ldo_dir_stripe_count,
+ lo->ldo_dir_migrate_hash,
+ lo->ldo_dir_migrate_offset,
+ name, strlen(name), true);
+ if (index < 0)
+ return index;
+
+ next = lo->ldo_stripe[index];
+ if (!next || !dt_object_exists(next))
+ return -ENODEV;
+ }
+
+ return next->do_index_ops->dio_lookup(env, next, rec, key);
+}
+
+/**
* Implementation of dt_it_ops::init.
*
* Used with striped objects. Internally just initializes the iterator
return next->do_index_ops->dio_it.load(env, it->lit_it, hash);
}
-static struct dt_index_operations lod_striped_index_ops = {
- .dio_lookup = lod_lookup,
+static const struct dt_index_operations lod_striped_index_ops = {
+ .dio_lookup = lod_striped_lookup,
.dio_declare_insert = lod_declare_insert,
.dio_insert = lod_insert,
.dio_declare_delete = lod_declare_delete,
/* The ent->lde_name is composed of ${FID}:${index} */
if (ent->lde_namelen < len + 1 ||
memcmp(ent->lde_name, name, len) != 0) {
- CDEBUG(lod->lod_lmv_failout ? D_ERROR : D_INFO,
- "%s: invalid shard name %.*s with the FID "DFID
- " for the striped directory "DFID", %s\n",
- lod2obd(lod)->obd_name, ent->lde_namelen,
- ent->lde_name, PFID(&fid),
- PFID(lu_object_fid(&obj->do_lu)),
- lod->lod_lmv_failout ? "failout" : "skip");
+ CDEBUG_LIMIT(lod->lod_lmv_failout ? D_ERROR : D_INFO,
+ "%s: invalid shard name %.*s with the FID "DFID" for the striped directory "DFID", %s\n",
+ lod2obd(lod)->obd_name, ent->lde_namelen,
+ ent->lde_name, PFID(&fid),
+ PFID(lu_object_fid(&obj->do_lu)),
+ lod->lod_lmv_failout ? "failout" : "skip");
if (lod->lod_lmv_failout)
break;
do {
if (ent->lde_name[len] < '0' ||
ent->lde_name[len] > '9') {
- CDEBUG(lod->lod_lmv_failout ? D_ERROR : D_INFO,
- "%s: invalid shard name %.*s with the "
- "FID "DFID" for the striped directory "
- DFID", %s\n",
- lod2obd(lod)->obd_name, ent->lde_namelen,
- ent->lde_name, PFID(&fid),
- PFID(lu_object_fid(&obj->do_lu)),
- lod->lod_lmv_failout ?
- "failout" : "skip");
+ CDEBUG_LIMIT(lod->lod_lmv_failout ?
+ D_ERROR : D_INFO,
+ "%s: invalid shard name %.*s with the FID "DFID" for the striped directory "DFID", %s\n",
+ lod2obd(lod)->obd_name,
+ ent->lde_namelen,
+ ent->lde_name, PFID(&fid),
+ PFID(lu_object_fid(&obj->do_lu)),
+ lod->lod_lmv_failout ?
+ "failout" : "skip");
if (lod->lod_lmv_failout)
break;
return dt_attr_get(env, dt_object_child(dt), attr);
}
+void lod_adjust_stripe_size(struct lod_layout_component *comp,
+ __u32 def_stripe_size)
+{
+ __u64 comp_end = comp->llc_extent.e_end;
+
+ /* Choose stripe size if not set. Note that default stripe size can't
+ * be used as is, because it must be multiplier of given component end.
+ * - first check if default stripe size can be used
+ * - if not than select the lowest set bit from component end and use
+ * that value as stripe size
+ */
+ if (!comp->llc_stripe_size) {
+ if (comp_end == LUSTRE_EOF || !(comp_end % def_stripe_size))
+ comp->llc_stripe_size = def_stripe_size;
+ else
+ comp->llc_stripe_size = comp_end & ~(comp_end - 1);
+ } else {
+ if (comp_end != LUSTRE_EOF &&
+ comp_end & (LOV_MIN_STRIPE_SIZE - 1)) {
+ CWARN("Component end %llu is not a multiple of min size %u\n",
+ comp_end, LOV_MIN_STRIPE_SIZE);
+ comp_end = round_up(comp_end, LOV_MIN_STRIPE_SIZE);
+ }
+ /* check stripe size is multiplier of comp_end */
+ if (comp_end != LUSTRE_EOF &&
+ comp_end != comp->llc_extent.e_start &&
+ comp_end % comp->llc_stripe_size) {
+ /* fix that even for defined stripe size but warn
+ * about the problem, that must not happen
+ */
+ CWARN("Component end %llu is not aligned by the stripe size %u\n",
+ comp_end, comp->llc_stripe_size);
+ comp->llc_stripe_size = comp_end & ~(comp_end - 1);
+ }
+ }
+}
+
static inline void lod_adjust_stripe_info(struct lod_layout_component *comp,
struct lov_desc *desc,
int append_stripes)
desc->ld_default_stripe_count;
}
}
- if (comp->llc_stripe_size <= 0)
- comp->llc_stripe_size = desc->ld_default_stripe_size;
+
+ lod_adjust_stripe_size(comp, desc->ld_default_stripe_size);
}
int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo,
struct lod_obj_stripe_cb_data *data)
{
struct lod_layout_component *lod_comp;
- int i, j, rc;
+ int i, j, rc = 0;
ENTRY;
- LASSERT(lo->ldo_comp_cnt != 0 && lo->ldo_comp_entries != NULL);
+ mutex_lock(&lo->ldo_layout_mutex);
for (i = 0; i < lo->ldo_comp_cnt; i++) {
lod_comp = &lo->ldo_comp_entries[i];
if (data->locd_comp_cb) {
rc = data->locd_comp_cb(env, lo, i, data);
if (rc)
- RETURN(rc);
+ GOTO(unlock, rc);
}
/* could used just to do sth about component, not each
continue;
rc = data->locd_stripe_cb(env, lo, dt, th, i, j, data);
if (rc != 0)
- RETURN(rc);
+ GOTO(unlock, rc);
}
}
- RETURN(0);
+unlock:
+ mutex_unlock(&lo->ldo_layout_mutex);
+ RETURN(rc);
}
static bool lod_obj_attr_set_comp_skip_cb(const struct lu_env *env,
if (le32_to_cpu(lmv1->lmv_magic) == LMV_MAGIC_V1)
rc = lmv_mds_md_size(
le32_to_cpu(lmv1->lmv_stripe_count),
- LMV_MAGIC_V1);
+ le32_to_cpu(lmv1->lmv_magic));
} else {
- lfm = buf->lb_buf;
- if (le32_to_cpu(lfm->lfm_magic) == LMV_MAGIC_FOREIGN)
+ lmv1 = buf->lb_buf;
+ if (le32_to_cpu(lmv1->lmv_magic) != LMV_MAGIC_V1)
RETURN(rc);
if (rc != sizeof(*lmv1))
lmm1->lmv_magic = cpu_to_le32(LMV_MAGIC);
lmm1->lmv_stripe_count = cpu_to_le32(stripe_count);
lmm1->lmv_hash_type = cpu_to_le32(lo->ldo_dir_hash_type);
- if (lo->ldo_dir_hash_type & LMV_HASH_FLAG_MIGRATION) {
+ lmm1->lmv_layout_version = cpu_to_le32(lo->ldo_dir_layout_version);
+ if (lod_is_layout_changing(lo)) {
lmm1->lmv_migrate_hash = cpu_to_le32(lo->ldo_dir_migrate_hash);
lmm1->lmv_migrate_offset =
cpu_to_le32(lo->ldo_dir_migrate_offset);
RETURN(0);
}
- if (le32_to_cpu(lmv1->lmv_magic) != LMV_MAGIC_V1)
+ if (!lmv_is_sane(lmv1))
RETURN(-EINVAL);
- if (le32_to_cpu(lmv1->lmv_stripe_count) < 1)
- RETURN(0);
-
LASSERT(lo->ldo_stripe == NULL);
- OBD_ALLOC(stripe, sizeof(stripe[0]) *
- (le32_to_cpu(lmv1->lmv_stripe_count)));
+ OBD_ALLOC_PTR_ARRAY(stripe, le32_to_cpu(lmv1->lmv_stripe_count));
if (stripe == NULL)
RETURN(-ENOMEM);
lo->ldo_stripe = stripe;
lo->ldo_dir_stripe_count = le32_to_cpu(lmv1->lmv_stripe_count);
lo->ldo_dir_stripes_allocated = le32_to_cpu(lmv1->lmv_stripe_count);
+ lo->ldo_dir_layout_version = le32_to_cpu(lmv1->lmv_layout_version);
+ lo->ldo_dir_migrate_offset = le32_to_cpu(lmv1->lmv_migrate_offset);
+ lo->ldo_dir_migrate_hash = le32_to_cpu(lmv1->lmv_migrate_hash);
+ lo->ldo_dir_hash_type = le32_to_cpu(lmv1->lmv_hash_type);
if (rc != 0)
lod_striping_free_nolock(env, lo);
if (!dto)
continue;
- rc = lod_sub_declare_create(env, dto, attr, NULL, dof, th);
- if (rc != 0)
- GOTO(out, rc);
+ /* directory split skip create for existing stripes */
+ if (!(lod_is_splitting(lo) && i < lo->ldo_dir_split_offset)) {
+ rc = lod_sub_declare_create(env, dto, attr, NULL, dof,
+ th);
+ if (rc != 0)
+ GOTO(out, rc);
- if (!dt_try_as_dir(env, dto))
- GOTO(out, rc = -EINVAL);
+ if (!dt_try_as_dir(env, dto))
+ GOTO(out, rc = -EINVAL);
- rc = lod_sub_declare_ref_add(env, dto, th);
- if (rc != 0)
- GOTO(out, rc);
+ rc = lod_sub_declare_ref_add(env, dto, th);
+ if (rc != 0)
+ GOTO(out, rc);
- rec->rec_fid = lu_object_fid(&dto->do_lu);
- rc = lod_sub_declare_insert(env, dto,
- (const struct dt_rec *)rec,
- (const struct dt_key *)dot, th);
- if (rc != 0)
- GOTO(out, rc);
+ rec->rec_fid = lu_object_fid(&dto->do_lu);
+ rc = lod_sub_declare_insert(env, dto,
+ (const struct dt_rec *)rec,
+ (const struct dt_key *)dot,
+ th);
+ if (rc != 0)
+ GOTO(out, rc);
- /* master stripe FID will be put to .. */
- rec->rec_fid = lu_object_fid(&dt->do_lu);
- rc = lod_sub_declare_insert(env, dto,
- (const struct dt_rec *)rec,
- (const struct dt_key *)dotdot, th);
- if (rc != 0)
- GOTO(out, rc);
+ /* master stripe FID will be put to .. */
+ rec->rec_fid = lu_object_fid(&dt->do_lu);
+ rc = lod_sub_declare_insert(env, dto,
+ (const struct dt_rec *)rec,
+ (const struct dt_key *)dotdot,
+ th);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_SLAVE_NAME) &&
+ cfs_fail_val == i)
+ snprintf(stripe_name, sizeof(info->lti_key),
+ DFID":%u",
+ PFID(lu_object_fid(&dto->do_lu)),
+ i + 1);
+ else
+ snprintf(stripe_name, sizeof(info->lti_key),
+ DFID":%u",
+ PFID(lu_object_fid(&dto->do_lu)), i);
+
+ sname = lod_name_get(env, stripe_name,
+ strlen(stripe_name));
+ rc = linkea_links_new(&ldata, &info->lti_linkea_buf,
+ sname, lu_object_fid(&dt->do_lu));
+ if (rc != 0)
+ GOTO(out, rc);
+
+ linkea_buf.lb_buf = ldata.ld_buf->lb_buf;
+ linkea_buf.lb_len = ldata.ld_leh->leh_len;
+ rc = lod_sub_declare_xattr_set(env, dto, &linkea_buf,
+ XATTR_NAME_LINK, 0, th);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ rec->rec_fid = lu_object_fid(&dto->do_lu);
+ rc = lod_sub_declare_insert(env, dt_object_child(dt),
+ (const struct dt_rec *)rec,
+ (const struct dt_key *)stripe_name, th);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ rc = lod_sub_declare_ref_add(env, dt_object_child(dt),
+ th);
+ if (rc != 0)
+ GOTO(out, rc);
+ }
if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_SLAVE_LMV) ||
cfs_fail_val != i) {
if (rc != 0)
GOTO(out, rc);
}
-
- if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_SLAVE_NAME) &&
- cfs_fail_val == i)
- snprintf(stripe_name, sizeof(info->lti_key), DFID":%u",
- PFID(lu_object_fid(&dto->do_lu)), i + 1);
- else
- snprintf(stripe_name, sizeof(info->lti_key), DFID":%u",
- PFID(lu_object_fid(&dto->do_lu)), i);
-
- sname = lod_name_get(env, stripe_name, strlen(stripe_name));
- rc = linkea_links_new(&ldata, &info->lti_linkea_buf,
- sname, lu_object_fid(&dt->do_lu));
- if (rc != 0)
- GOTO(out, rc);
-
- linkea_buf.lb_buf = ldata.ld_buf->lb_buf;
- linkea_buf.lb_len = ldata.ld_leh->leh_len;
- rc = lod_sub_declare_xattr_set(env, dto, &linkea_buf,
- XATTR_NAME_LINK, 0, th);
- if (rc != 0)
- GOTO(out, rc);
-
- rec->rec_fid = lu_object_fid(&dto->do_lu);
- rc = lod_sub_declare_insert(env, dt_object_child(dt),
- (const struct dt_rec *)rec,
- (const struct dt_key *)stripe_name,
- th);
- if (rc != 0)
- GOTO(out, rc);
-
- rc = lod_sub_declare_ref_add(env, dt_object_child(dt), th);
- if (rc != 0)
- GOTO(out, rc);
}
rc = lod_sub_declare_xattr_set(env, dt_object_child(dt),
struct dt_object **stripes,
__u32 *mdt_indices, bool is_specific)
{
- struct lod_thread_info *info = lod_env_info(env);
struct lod_device *lod = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
struct lu_tgt_descs *ltd = &lod->lod_mdt_descs;
struct lu_tgt_desc *tgt = NULL;
int rc;
master_index = lu_site2seq(lod2lu_dev(lod)->ld_site)->ss_node_id;
- if (stripe_count > 1)
+ if (!is_specific && stripe_count > 1)
/* Set the start index for the 2nd stripe allocation */
mdt_indices[1] = (mdt_indices[0] + 1) %
(lod->lod_remote_mdt_count + 1);
/* Sigh, this index is not in the bitmap, let's check
* next available target */
- if (!cfs_bitmap_check(ltd->ltd_tgt_bitmap, idx) &&
+ if (!test_bit(idx, ltd->ltd_tgt_bitmap) &&
idx != master_index)
continue;
if (idx == master_index) {
/* Allocate the FID locally */
- rc = obd_fid_alloc(env, lod->lod_child_exp,
- &fid, NULL);
+ tgt_dt = lod->lod_child;
+ rc = dt_fid_alloc(env, tgt_dt, &fid, NULL,
+ NULL);
if (rc < 0)
continue;
- tgt_dt = lod->lod_child;
break;
}
continue;
tgt_dt = tgt->ltd_tgt;
- rc = dt_statfs(env, tgt_dt, &info->lti_osfs);
- if (rc)
+ if (!tgt->ltd_active)
/* this OSP doesn't feel well */
continue;
- rc = obd_fid_alloc(env, tgt->ltd_exp, &fid, NULL);
+ rc = dt_fid_alloc(env, tgt_dt, &fid, NULL, NULL);
if (rc < 0)
continue;
stripe_count = lo->ldo_dir_stripe_count;
- OBD_ALLOC(stripes, sizeof(stripes[0]) * stripe_count);
+ OBD_ALLOC_PTR_ARRAY(stripes, stripe_count);
if (!stripes)
RETURN(-ENOMEM);
/* Allocate the first stripe locally */
- rc = obd_fid_alloc(env, lod->lod_child_exp, &fid, NULL);
+ rc = dt_fid_alloc(env, lod->lod_child, &fid, NULL, NULL);
if (rc < 0)
GOTO(out, rc);
if (lo->ldo_dir_stripe_offset == LMV_OFFSET_DEFAULT) {
lod_qos_statfs_update(env, lod, &lod->lod_mdt_descs);
- rc = lod_mdt_alloc_qos(env, lo, stripes);
+ rc = lod_mdt_alloc_qos(env, lo, stripes, 1, stripe_count);
if (rc == -EAGAIN)
- rc = lod_mdt_alloc_rr(env, lo, stripes);
+ rc = lod_mdt_alloc_rr(env, lo, stripes, 1,
+ stripe_count);
} else {
int *idx_array;
bool is_specific = false;
- OBD_ALLOC(idx_array, sizeof(idx_array[0]) * stripe_count);
+ OBD_ALLOC_PTR_ARRAY(idx_array, stripe_count);
if (!idx_array)
GOTO(out, rc = -ENOMEM);
lu_site2seq(lod2lu_dev(lod)->ld_site)->ss_node_id;
rc = lod_mdt_alloc_specific(env, lo, stripes, idx_array,
is_specific);
- OBD_FREE(idx_array, sizeof(idx_array[0]) * stripe_count);
+ OBD_FREE_PTR_ARRAY(idx_array, stripe_count);
}
if (rc < 0)
dt_object_put(env, stripes[0]);
for (i = 1; i < stripe_count; i++)
LASSERT(!stripes[i]);
- OBD_FREE(stripes, sizeof(stripes[0]) * stripe_count);
+ OBD_FREE_PTR_ARRAY(stripes, stripe_count);
return rc;
}
}
/**
- * Append source stripes after target stripes for migrating directory. NB, we
- * only need to declare this, the append is done inside lod_xattr_set_lmv().
+ * Set or replace striped directory layout, and LFSCK may set layout on a plain
+ * directory, so don't check stripe count.
*
* \param[in] env execution environment
* \param[in] dt target object
* \param[in] buf LMV buf which contains source stripe fids
+ * \param[in] fl set or replace
* \param[in] th transaction handle
*
* \retval 0 on success
* \retval negative if failed
*/
-static int lod_dir_declare_layout_add(const struct lu_env *env,
- struct dt_object *dt,
- const struct lu_buf *buf,
- struct thandle *th)
+static int lod_dir_layout_set(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_buf *buf,
+ int fl,
+ struct thandle *th)
{
- struct lod_thread_info *info = lod_env_info(env);
- struct lod_device *lod = lu2lod_dev(dt->do_lu.lo_dev);
- struct lod_tgt_descs *ltd = &lod->lod_mdt_descs;
- struct lod_object *lo = lod_dt_obj(dt);
struct dt_object *next = dt_object_child(dt);
- struct dt_object_format *dof = &info->lti_format;
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct lod_device *lod = lu2lod_dev(lod2lu_obj(lo)->lo_dev);
struct lmv_mds_md_v1 *lmv = buf->lb_buf;
- struct dt_object **stripe;
- __u32 stripe_count = le32_to_cpu(lmv->lmv_stripe_count);
- struct lu_fid *fid = &info->lti_fid;
- struct lod_tgt_desc *tgt;
- struct dt_object *dto;
- struct dt_device *tgt_dt;
- int type = LU_SEQ_RANGE_ANY;
- struct dt_insert_rec *rec = &info->lti_dt_rec;
- char *stripe_name = info->lti_key;
- struct lu_name *sname;
- struct linkea_data ldata = { NULL };
- struct lu_buf linkea_buf;
- __u32 idx;
+ struct lmv_mds_md_v1 *slave_lmv;
+ struct lu_buf slave_buf;
int i;
int rc;
ENTRY;
- if (le32_to_cpu(lmv->lmv_magic) != LMV_MAGIC_V1)
+ if (!lmv_is_sane2(lmv))
RETURN(-EINVAL);
- if (stripe_count == 0)
- RETURN(-EINVAL);
+ /* adjust hash for dir merge, which may not be set in user command */
+ if (lmv_is_merging(lmv) && !lmv->lmv_migrate_hash)
+ lmv->lmv_merge_hash =
+ lod->lod_mdt_descs.ltd_lmv_desc.ld_pattern;
- dof->dof_type = DFT_DIR;
+ LMV_DEBUG(D_INFO, lmv, "set");
- OBD_ALLOC(stripe,
- sizeof(*stripe) * (lo->ldo_dir_stripe_count + stripe_count));
- if (stripe == NULL)
+ rc = lod_sub_xattr_set(env, next, buf, XATTR_NAME_LMV, fl, th);
+ if (rc)
+ RETURN(rc);
+
+ /* directory restripe may update stripe LMV directly */
+ if (!lo->ldo_dir_stripe_count)
+ RETURN(0);
+
+ lo->ldo_dir_hash_type = le32_to_cpu(lmv->lmv_hash_type);
+ lo->ldo_dir_migrate_offset = le32_to_cpu(lmv->lmv_migrate_offset);
+ lo->ldo_dir_migrate_hash = le32_to_cpu(lmv->lmv_migrate_hash);
+ lo->ldo_dir_layout_version = le32_to_cpu(lmv->lmv_layout_version);
+
+ OBD_ALLOC_PTR(slave_lmv);
+ if (!slave_lmv)
RETURN(-ENOMEM);
- for (i = 0; i < lo->ldo_dir_stripe_count; i++)
- stripe[i] = lo->ldo_stripe[i];
+ lod_prep_slave_lmv_md(slave_lmv, lmv);
+ slave_buf.lb_buf = slave_lmv;
+ slave_buf.lb_len = sizeof(*slave_lmv);
- for (i = 0; i < stripe_count; i++) {
- fid_le_to_cpu(fid,
- &lmv->lmv_stripe_fids[i]);
- if (!fid_is_sane(fid))
+ for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
+ if (!lo->ldo_stripe[i])
continue;
- rc = lod_fld_lookup(env, lod, fid, &idx, &type);
+ if (!dt_object_exists(lo->ldo_stripe[i]))
+ continue;
+
+ rc = lod_sub_xattr_set(env, lo->ldo_stripe[i], &slave_buf,
+ XATTR_NAME_LMV, fl, th);
if (rc)
- GOTO(out, rc);
+ break;
+ }
- if (idx == lod2lu_dev(lod)->ld_site->ld_seq_site->ss_node_id) {
- tgt_dt = lod->lod_child;
- } else {
- tgt = LTD_TGT(ltd, idx);
- if (tgt == NULL)
- GOTO(out, rc = -ESTALE);
- tgt_dt = tgt->ltd_tgt;
- }
+ OBD_FREE_PTR(slave_lmv);
- dto = dt_locate_at(env, tgt_dt, fid,
- lo->ldo_obj.do_lu.lo_dev->ld_site->ls_top_dev,
- NULL);
- if (IS_ERR(dto))
- GOTO(out, rc = PTR_ERR(dto));
+ RETURN(rc);
+}
- stripe[i + lo->ldo_dir_stripe_count] = dto;
+/**
+ * Implementation of dt_object_operations::do_declare_xattr_set.
+ *
+ * Used with regular (non-striped) objects. Basically it
+ * initializes the striping information and applies the
+ * change to all the stripes.
+ *
+ * \see dt_object_operations::do_declare_xattr_set() in the API description
+ * for details.
+ */
+static int lod_dir_declare_xattr_set(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_buf *buf,
+ const char *name, int fl,
+ struct thandle *th)
+{
+ struct dt_object *next = dt_object_child(dt);
+ struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
+ struct lod_object *lo = lod_dt_obj(dt);
+ int i;
+ int rc;
+ ENTRY;
- if (!dt_try_as_dir(env, dto))
- GOTO(out, rc = -ENOTDIR);
+ if (strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0) {
+ struct lmv_user_md_v1 *lum;
- rc = lod_sub_declare_ref_add(env, dto, th);
- if (rc)
- GOTO(out, rc);
+ LASSERT(buf != NULL && buf->lb_buf != NULL);
+ lum = buf->lb_buf;
+ rc = lod_verify_md_striping(d, lum);
+ if (rc != 0)
+ RETURN(rc);
+ } else if (strcmp(name, XATTR_NAME_LOV) == 0) {
+ rc = lod_verify_striping(env, d, lo, buf, false);
+ if (rc != 0)
+ RETURN(rc);
+ }
- rc = lod_sub_declare_insert(env, dto,
- (const struct dt_rec *)rec,
- (const struct dt_key *)dot, th);
- if (rc)
- GOTO(out, rc);
+ rc = lod_sub_declare_xattr_set(env, next, buf, name, fl, th);
+ if (rc != 0)
+ RETURN(rc);
- rc = lod_sub_declare_insert(env, dto,
- (const struct dt_rec *)rec,
- (const struct dt_key *)dotdot, th);
- if (rc)
- GOTO(out, rc);
+ /* Note: Do not set LinkEA on sub-stripes, otherwise
+ * it will confuse the fid2path process(see mdt_path_current()).
+ * The linkEA between master and sub-stripes is set in
+ * lod_xattr_set_lmv(). */
+ if (strcmp(name, XATTR_NAME_LINK) == 0)
+ RETURN(0);
- rc = lod_sub_declare_xattr_set(env, dto, buf,
- XATTR_NAME_LMV, 0, th);
- if (rc)
- GOTO(out, rc);
-
- snprintf(stripe_name, sizeof(info->lti_key), DFID":%u",
- PFID(lu_object_fid(&dto->do_lu)),
- i + lo->ldo_dir_stripe_count);
-
- sname = lod_name_get(env, stripe_name, strlen(stripe_name));
- rc = linkea_links_new(&ldata, &info->lti_linkea_buf,
- sname, lu_object_fid(&dt->do_lu));
- if (rc)
- GOTO(out, rc);
-
- linkea_buf.lb_buf = ldata.ld_buf->lb_buf;
- linkea_buf.lb_len = ldata.ld_leh->leh_len;
- rc = lod_sub_declare_xattr_set(env, dto, &linkea_buf,
- XATTR_NAME_LINK, 0, th);
- if (rc)
- GOTO(out, rc);
-
- rc = lod_sub_declare_insert(env, next,
- (const struct dt_rec *)rec,
- (const struct dt_key *)stripe_name,
- th);
- if (rc)
- GOTO(out, rc);
-
- rc = lod_sub_declare_ref_add(env, next, th);
- if (rc)
- GOTO(out, rc);
- }
-
- if (lo->ldo_stripe)
- OBD_FREE(lo->ldo_stripe,
- sizeof(*stripe) * lo->ldo_dir_stripes_allocated);
- lo->ldo_stripe = stripe;
- lo->ldo_dir_migrate_offset = lo->ldo_dir_stripe_count;
- lo->ldo_dir_migrate_hash = le32_to_cpu(lmv->lmv_hash_type);
- lo->ldo_dir_stripe_count += stripe_count;
- lo->ldo_dir_stripes_allocated += stripe_count;
- lo->ldo_dir_hash_type |= LMV_HASH_FLAG_MIGRATION;
-
- RETURN(0);
-out:
- i = lo->ldo_dir_stripe_count;
- while (i < lo->ldo_dir_stripe_count + stripe_count && stripe[i])
- dt_object_put(env, stripe[i++]);
-
- OBD_FREE(stripe,
- sizeof(*stripe) * (stripe_count + lo->ldo_dir_stripe_count));
- RETURN(rc);
-}
-
-static int lod_dir_declare_layout_delete(const struct lu_env *env,
- struct dt_object *dt,
- const struct lu_buf *buf,
- struct thandle *th)
-{
- struct lod_thread_info *info = lod_env_info(env);
- struct lod_object *lo = lod_dt_obj(dt);
- struct dt_object *next = dt_object_child(dt);
- struct lmv_user_md *lmu = buf->lb_buf;
- __u32 final_stripe_count;
- char *stripe_name = info->lti_key;
- struct dt_object *dto;
- int i;
- int rc = 0;
-
- if (!lmu)
- return -EINVAL;
-
- final_stripe_count = le32_to_cpu(lmu->lum_stripe_count);
- if (final_stripe_count >= lo->ldo_dir_stripe_count)
- return -EINVAL;
-
- for (i = final_stripe_count; i < lo->ldo_dir_stripe_count; i++) {
- dto = lo->ldo_stripe[i];
- if (!dto)
- continue;
-
- if (!dt_try_as_dir(env, dto))
- return -ENOTDIR;
-
- rc = lod_sub_declare_delete(env, dto,
- (const struct dt_key *)dot, th);
- if (rc)
- return rc;
-
- rc = lod_sub_declare_ref_del(env, dto, th);
- if (rc)
- return rc;
-
- rc = lod_sub_declare_delete(env, dto,
- (const struct dt_key *)dotdot, th);
- if (rc)
- return rc;
-
- snprintf(stripe_name, sizeof(info->lti_key), DFID":%d",
- PFID(lu_object_fid(&dto->do_lu)), i);
-
- rc = lod_sub_declare_delete(env, next,
- (const struct dt_key *)stripe_name, th);
- if (rc)
- return rc;
-
- rc = lod_sub_declare_ref_del(env, next, th);
- if (rc)
- return rc;
- }
-
- return 0;
-}
-
-/*
- * delete stripes from dir master object, the lum_stripe_count in argument is
- * the final stripe count, the stripes after that will be deleted, NB, they
- * are not destroyed, but deleted from it's parent namespace, this function
- * will be called in two places:
- * 1. mdd_migrate_create() delete stripes from source, and append them to
- * target.
- * 2. mdd_dir_layout_shrink() delete stripes from source, and destroy them.
- */
-static int lod_dir_layout_delete(const struct lu_env *env,
- struct dt_object *dt,
- const struct lu_buf *buf,
- struct thandle *th)
-{
- struct lod_thread_info *info = lod_env_info(env);
- struct lod_object *lo = lod_dt_obj(dt);
- struct dt_object *next = dt_object_child(dt);
- struct lmv_user_md *lmu = buf->lb_buf;
- __u32 final_stripe_count;
- char *stripe_name = info->lti_key;
- struct dt_object *dto;
- int i;
- int rc = 0;
-
- ENTRY;
-
- if (!lmu)
- RETURN(-EINVAL);
-
- final_stripe_count = le32_to_cpu(lmu->lum_stripe_count);
- if (final_stripe_count >= lo->ldo_dir_stripe_count)
- RETURN(-EINVAL);
-
- for (i = final_stripe_count; i < lo->ldo_dir_stripe_count; i++) {
- dto = lo->ldo_stripe[i];
- if (!dto)
- continue;
-
- rc = lod_sub_delete(env, dto,
- (const struct dt_key *)dotdot, th);
- if (rc)
- break;
-
- snprintf(stripe_name, sizeof(info->lti_key), DFID":%d",
- PFID(lu_object_fid(&dto->do_lu)), i);
-
- rc = lod_sub_delete(env, next,
- (const struct dt_key *)stripe_name, th);
- if (rc)
- break;
-
- rc = lod_sub_ref_del(env, next, th);
- if (rc)
- break;
- }
-
- lod_striping_free(env, lod_dt_obj(dt));
-
- RETURN(rc);
-}
-
-/**
- * Implementation of dt_object_operations::do_declare_xattr_set.
- *
- * Used with regular (non-striped) objects. Basically it
- * initializes the striping information and applies the
- * change to all the stripes.
- *
- * \see dt_object_operations::do_declare_xattr_set() in the API description
- * for details.
- */
-static int lod_dir_declare_xattr_set(const struct lu_env *env,
- struct dt_object *dt,
- const struct lu_buf *buf,
- const char *name, int fl,
- struct thandle *th)
-{
- struct dt_object *next = dt_object_child(dt);
- struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
- struct lod_object *lo = lod_dt_obj(dt);
- int i;
- int rc;
- ENTRY;
-
- if (strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0) {
- struct lmv_user_md_v1 *lum;
-
- LASSERT(buf != NULL && buf->lb_buf != NULL);
- lum = buf->lb_buf;
- rc = lod_verify_md_striping(d, lum);
- if (rc != 0)
- RETURN(rc);
- } else if (strcmp(name, XATTR_NAME_LOV) == 0) {
- rc = lod_verify_striping(d, lo, buf, false);
- if (rc != 0)
- RETURN(rc);
- }
-
- rc = lod_sub_declare_xattr_set(env, next, buf, name, fl, th);
- if (rc != 0)
- RETURN(rc);
-
- /* Note: Do not set LinkEA on sub-stripes, otherwise
- * it will confuse the fid2path process(see mdt_path_current()).
- * The linkEA between master and sub-stripes is set in
- * lod_xattr_set_lmv(). */
- if (strcmp(name, XATTR_NAME_LINK) == 0)
- RETURN(0);
-
- /* set xattr to each stripes, if needed */
- rc = lod_striping_load(env, lo);
- if (rc != 0)
- RETURN(rc);
+ /* set xattr to each stripes, if needed */
+ rc = lod_striping_load(env, lo);
+ if (rc != 0)
+ RETURN(rc);
if (lo->ldo_dir_stripe_count == 0)
RETURN(0);
RETURN(rc);
}
-inline __u16 lod_comp_entry_stripe_count(struct lod_object *lo,
- struct lod_layout_component *entry,
- bool is_dir)
+__u16 lod_comp_entry_stripe_count(struct lod_object *lo,
+ int comp_idx, bool is_dir)
{
struct lod_device *lod = lu2lod_dev(lod2lu_obj(lo)->lo_dev);
+ struct lod_layout_component *entry;
if (is_dir)
return 0;
- else if (lod_comp_inited(entry))
+
+ entry = &lo->ldo_comp_entries[comp_idx];
+ if (lod_comp_inited(entry))
return entry->llc_stripe_count;
else if ((__u16)-1 == entry->llc_stripe_count)
return lod->lod_ost_count;
else
- return lod_get_stripe_count(lod, lo,
+ return lod_get_stripe_count(lod, lo, comp_idx,
entry->llc_stripe_count, false);
}
__u16 stripe_count;
magic = comp_entries[i].llc_pool ? LOV_MAGIC_V3 : LOV_MAGIC_V1;
- stripe_count = lod_comp_entry_stripe_count(lo, &comp_entries[i],
- is_dir);
+ stripe_count = lod_comp_entry_stripe_count(lo, i, is_dir);
if (!is_dir && is_composite)
lod_comp_shrink_stripe_count(&comp_entries[i],
&stripe_count);
if (lo->ldo_flr_state != LCM_FL_NONE)
RETURN(-EBUSY);
- rc = lod_verify_striping(d, lo, buf, false);
+ rc = lod_verify_striping(env, d, lo, buf, false);
if (rc != 0)
RETURN(rc);
if (magic != LOV_USER_MAGIC_COMP_V1)
RETURN(-EINVAL);
+ mutex_lock(&lo->ldo_layout_mutex);
+
array_cnt = lo->ldo_comp_cnt + comp_v1->lcm_entry_count;
- OBD_ALLOC(comp_array, sizeof(*comp_array) * array_cnt);
- if (comp_array == NULL)
+ OBD_ALLOC_PTR_ARRAY(comp_array, array_cnt);
+ if (comp_array == NULL) {
+ mutex_unlock(&lo->ldo_layout_mutex);
RETURN(-ENOMEM);
+ }
+
memcpy(comp_array, lo->ldo_comp_entries,
sizeof(*comp_array) * lo->ldo_comp_cnt);
GOTO(error, rc);
}
- OBD_FREE(old_array, sizeof(*lod_comp) * old_array_cnt);
+ OBD_FREE_PTR_ARRAY(old_array, old_array_cnt);
LASSERT(lo->ldo_mirror_count == 1);
lo->ldo_mirrors[0].lme_end = array_cnt - 1;
+ mutex_unlock(&lo->ldo_layout_mutex);
+
RETURN(0);
error:
lod_comp->llc_pool = NULL;
}
}
- OBD_FREE(comp_array, sizeof(*comp_array) * array_cnt);
+ OBD_FREE_PTR_ARRAY(comp_array, array_cnt);
+ mutex_unlock(&lo->ldo_layout_mutex);
+
RETURN(rc);
}
RETURN(-EINVAL);
}
+ mutex_lock(&lo->ldo_layout_mutex);
for (i = 0; i < comp_v1->lcm_entry_count; i++) {
__u32 id = comp_v1->lcm_entries[i].lcme_id;
__u32 flags = comp_v1->lcm_entries[i].lcme_flags;
if (flags & LCME_FL_INIT) {
if (changed)
- lod_striping_free(env, lo);
+ lod_striping_free_nolock(env, lo);
+ mutex_unlock(&lo->ldo_layout_mutex);
RETURN(-EINVAL);
}
if (flags) {
if ((flags & LCME_FL_STALE) &&
lod_last_non_stale_mirror(mirror_id,
- lo))
+ lo)) {
+ mutex_unlock(
+ &lo->ldo_layout_mutex);
RETURN(-EUCLEAN);
+ }
lod_comp->llc_flags |= flags;
}
if (mirror_flag) {
changed = true;
}
}
+ mutex_unlock(&lo->ldo_layout_mutex);
if (!changed) {
CDEBUG(D_LAYOUT, "%s: requested component(s) not found.\n",
flags = 0;
}
+ mutex_lock(&lo->ldo_layout_mutex);
+
left = lo->ldo_comp_cnt;
- if (left <= 0)
+ if (left <= 0) {
+ mutex_unlock(&lo->ldo_layout_mutex);
RETURN(-EINVAL);
+ }
for (i = (lo->ldo_comp_cnt - 1); i >= 0; i--) {
struct lod_layout_component *lod_comp;
if (left != (i + 1)) {
CDEBUG(D_LAYOUT, "%s: this deletion will create "
"a hole.\n", lod2obd(d)->obd_name);
+ mutex_unlock(&lo->ldo_layout_mutex);
RETURN(-EINVAL);
}
left--;
if (obj == NULL)
continue;
rc = lod_sub_declare_destroy(env, obj, th);
- if (rc)
+ if (rc) {
+ mutex_unlock(&lo->ldo_layout_mutex);
RETURN(rc);
+ }
}
}
if (left == lo->ldo_comp_cnt) {
CDEBUG(D_LAYOUT, "%s: requested component id:%#x not found\n",
lod2obd(d)->obd_name, id);
+ mutex_unlock(&lo->ldo_layout_mutex);
RETURN(-EINVAL);
}
+ mutex_unlock(&lo->ldo_layout_mutex);
+
memset(attr, 0, sizeof(*attr));
attr->la_valid = LA_SIZE;
rc = lod_sub_declare_attr_set(env, next, attr, th);
}
lcm = info->lti_ea_store;
+ memset(lcm, 0, sizeof(*lcm) + sizeof(*lcme));
lcm->lcm_magic = cpu_to_le32(LOV_MAGIC_COMP_V1);
lcm->lcm_size = cpu_to_le32(size);
lcm->lcm_layout_gen = cpu_to_le32(le16_to_cpu(
lmm_save->lmm_layout_gen));
lcm->lcm_flags = cpu_to_le16(LCM_FL_NONE);
lcm->lcm_entry_count = cpu_to_le16(1);
- lcm->lcm_mirror_count = 0;
lcme = &lcm->lcm_entries[0];
lcme->lcme_flags = cpu_to_le32(LCME_FL_INIT);
lcme->lcme_id = cpu_to_le32(id);
}
- id = MAX(le32_to_cpu(lcme->lcme_id), id);
+ id = max(le32_to_cpu(lcme->lcme_id), id);
}
mirror_id = mirror_id_of(id) + 1;
int rc;
ENTRY;
- lod_obj_inc_layout_gen(lo);
- lcm->lcm_layout_gen = cpu_to_le32(lo->ldo_layout_gen);
-
rc = lod_striping_reload(env, lo, mbuf);
if (rc)
RETURN(rc);
+ lod_obj_inc_layout_gen(lo);
+ /* fix on-disk layout gen */
+ lcm->lcm_layout_gen = cpu_to_le32(lo->ldo_layout_gen);
+
rc = lod_sub_declare_xattr_set(env, dt_object_child(dt), mbuf,
XATTR_NAME_LOV, LU_XATTR_REPLACE, th);
RETURN(rc);
}
-/**
- * Implementation of dt_object_operations::do_declare_xattr_set.
- *
- * \see dt_object_operations::do_declare_xattr_set() in the API description
- * for details.
- *
- * the extension to the API:
- * - declaring LOVEA requests striping creation
- * - LU_XATTR_REPLACE means layout swap
- */
-static int lod_declare_xattr_set(const struct lu_env *env,
- struct dt_object *dt,
- const struct lu_buf *buf,
- const char *name, int fl,
- struct thandle *th)
+static int lod_layout_declare_or_purge_mirror(const struct lu_env *env,
+ struct dt_object *dt, const struct lu_buf *buf,
+ struct thandle *th, bool declare)
{
- struct dt_object *next = dt_object_child(dt);
- struct lu_attr *attr = &lod_env_info(env)->lti_attr;
- __u32 mode;
- int rc;
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct lov_comp_md_v1 *comp_v1 = buf->lb_buf;
+ struct lov_comp_md_entry_v1 *entry;
+ struct lov_mds_md_v1 *lmm;
+ struct dt_object **sub_objs = NULL;
+ int rc = 0, i, k, array_count = 0;
+
ENTRY;
- mode = dt->do_lu.lo_header->loh_attr & S_IFMT;
- if ((S_ISREG(mode) || mode == 0) &&
- !(fl & (LU_XATTR_REPLACE | LU_XATTR_MERGE | LU_XATTR_SPLIT)) &&
- (strcmp(name, XATTR_NAME_LOV) == 0 ||
- strcmp(name, XATTR_LUSTRE_LOV) == 0)) {
- /*
- * this is a request to create object's striping.
- *
- * allow to declare predefined striping on a new (!mode) object
+ /**
+ * other ops (like lod_declare_destroy) could destroying sub objects
+ * as well.
+ */
+ mutex_lock(&lo->ldo_layout_mutex);
+
+ if (!declare) {
+ /* prepare sub-objects array */
+ for (i = 0; i < comp_v1->lcm_entry_count; i++) {
+ entry = &comp_v1->lcm_entries[i];
+
+ if (!(entry->lcme_flags & LCME_FL_INIT))
+ continue;
+
+ lmm = (struct lov_mds_md_v1 *)
+ ((char *)comp_v1 + entry->lcme_offset);
+ array_count += lmm->lmm_stripe_count;
+ }
+ OBD_ALLOC_PTR_ARRAY(sub_objs, array_count);
+ if (sub_objs == NULL) {
+ mutex_unlock(&lo->ldo_layout_mutex);
+ RETURN(-ENOMEM);
+ }
+ }
+
+ k = 0; /* sub_objs index */
+ for (i = 0; i < comp_v1->lcm_entry_count; i++) {
+ struct lov_ost_data_v1 *objs;
+ struct lu_object *o, *n;
+ struct dt_object *dto;
+ struct lu_device *nd;
+ struct lov_mds_md_v3 *v3;
+ __u32 idx;
+ int j;
+
+ entry = &comp_v1->lcm_entries[i];
+
+ if (!(entry->lcme_flags & LCME_FL_INIT))
+ continue;
+
+ lmm = (struct lov_mds_md_v1 *)
+ ((char *)comp_v1 + entry->lcme_offset);
+ v3 = (struct lov_mds_md_v3 *)lmm;
+ if (lmm->lmm_magic == LOV_MAGIC_V3)
+ objs = &v3->lmm_objects[0];
+ else
+ objs = &lmm->lmm_objects[0];
+
+ for (j = 0; j < lmm->lmm_stripe_count; j++) {
+ idx = objs[j].l_ost_idx;
+ rc = ostid_to_fid(&info->lti_fid, &objs[j].l_ost_oi,
+ idx);
+ if (rc)
+ GOTO(out, rc);
+
+ if (!fid_is_sane(&info->lti_fid)) {
+ CERROR("%s: sub-object insane fid "DFID"\n",
+ lod2obd(d)->obd_name,
+ PFID(&info->lti_fid));
+ GOTO(out, rc = -EINVAL);
+ }
+
+ lod_getref(&d->lod_ost_descs);
+
+ rc = validate_lod_and_idx(d, idx);
+ if (unlikely(rc)) {
+ lod_putref(d, &d->lod_ost_descs);
+ GOTO(out, rc);
+ }
+
+ nd = &OST_TGT(d, idx)->ltd_tgt->dd_lu_dev;
+ lod_putref(d, &d->lod_ost_descs);
+
+ o = lu_object_find_at(env, nd, &info->lti_fid, NULL);
+ if (IS_ERR(o))
+ GOTO(out, rc = PTR_ERR(o));
+
+ n = lu_object_locate(o->lo_header, nd->ld_type);
+ if (unlikely(!n)) {
+ lu_object_put(env, n);
+ GOTO(out, rc = -ENOENT);
+ }
+
+ dto = container_of(n, struct dt_object, do_lu);
+
+ if (declare) {
+ rc = lod_sub_declare_destroy(env, dto, th);
+ dt_object_put(env, dto);
+ if (rc)
+ GOTO(out, rc);
+ } else {
+ /**
+ * collect to-be-destroyed sub objects, the
+ * reference would be released after actual
+ * deletion.
+ */
+ sub_objs[k] = dto;
+ k++;
+ }
+ } /* for each stripe */
+ } /* for each component in the mirror */
+out:
+ if (!declare) {
+ i = 0;
+ if (!rc) {
+ /* destroy the sub objects */
+ for (; i < k; i++) {
+ rc = lod_sub_destroy(env, sub_objs[i], th);
+ if (rc)
+ break;
+ dt_object_put(env, sub_objs[i]);
+ }
+ }
+ /**
+ * if a sub object destroy failed, we'd release sub objects
+ * reference get from above sub_objs collection.
+ */
+ for (; i < k; i++)
+ dt_object_put(env, sub_objs[i]);
+
+ OBD_FREE_PTR_ARRAY(sub_objs, array_count);
+ }
+ mutex_unlock(&lo->ldo_layout_mutex);
+
+ RETURN(rc);
+}
+
+/**
+ * Purge layouts, delete sub objects in the mirror stored in the vic_buf,
+ * and set the LOVEA with the layout from mbuf.
+ */
+static int lod_declare_layout_purge(const struct lu_env *env,
+ struct dt_object *dt, const struct lu_buf *buf,
+ struct thandle *th)
+{
+ struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
+ struct lov_comp_md_v1 *comp_v1 = buf->lb_buf;
+ int rc;
+
+ ENTRY;
+
+ if (le32_to_cpu(comp_v1->lcm_magic) != LOV_MAGIC_COMP_V1) {
+ CERROR("%s: invalid layout magic %#x != %#x\n",
+ lod2obd(d)->obd_name, le32_to_cpu(comp_v1->lcm_magic),
+ LOV_MAGIC_COMP_V1);
+ RETURN(-EINVAL);
+ }
+
+ if (cpu_to_le32(LOV_MAGIC_COMP_V1) != LOV_MAGIC_COMP_V1)
+ lustre_swab_lov_comp_md_v1(comp_v1);
+
+ /* from now on, @buf contains cpu endian data */
+
+ if (comp_v1->lcm_mirror_count != 0) {
+ CERROR("%s: can only purge one mirror from "DFID"\n",
+ lod2obd(d)->obd_name, PFID(lu_object_fid(&dt->do_lu)));
+ RETURN(-EINVAL);
+ }
+
+ /* delcare sub objects deletion in the mirror stored in @buf */
+ rc = lod_layout_declare_or_purge_mirror(env, dt, buf, th, true);
+ RETURN(rc);
+}
+
+/* delete sub objects from the mirror stored in @buf */
+static int lod_layout_purge(const struct lu_env *env, struct dt_object *dt,
+ const struct lu_buf *buf, struct thandle *th)
+{
+ int rc;
+
+ ENTRY;
+ rc = lod_layout_declare_or_purge_mirror(env, dt, buf, th, false);
+ RETURN(rc);
+}
+
+/**
+ * Implementation of dt_object_operations::do_declare_xattr_set.
+ *
+ * \see dt_object_operations::do_declare_xattr_set() in the API description
+ * for details.
+ *
+ * the extension to the API:
+ * - declaring LOVEA requests striping creation
+ * - LU_XATTR_REPLACE means layout swap
+ */
+static int lod_declare_xattr_set(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_buf *buf,
+ const char *name, int fl,
+ struct thandle *th)
+{
+ struct dt_object *next = dt_object_child(dt);
+ struct lu_attr *attr = &lod_env_info(env)->lti_attr;
+ __u32 mode;
+ int rc;
+ ENTRY;
+
+ mode = dt->do_lu.lo_header->loh_attr & S_IFMT;
+ if ((S_ISREG(mode) || mode == 0) &&
+ !(fl & (LU_XATTR_REPLACE | LU_XATTR_MERGE | LU_XATTR_SPLIT |
+ LU_XATTR_PURGE)) &&
+ (strcmp(name, XATTR_NAME_LOV) == 0 ||
+ strcmp(name, XATTR_LUSTRE_LOV) == 0)) {
+ /*
+ * this is a request to create object's striping.
+ *
+ * allow to declare predefined striping on a new (!mode) object
* which is supposed to be replay of regular file creation
* (when LOV setting is declared)
*
LASSERT(strcmp(name, XATTR_NAME_LOV) == 0 ||
strcmp(name, XATTR_LUSTRE_LOV) == 0);
rc = lod_declare_layout_split(env, dt, buf, th);
+ } else if (fl & LU_XATTR_PURGE) {
+ LASSERT(strcmp(name, XATTR_NAME_LOV) == 0 ||
+ strcmp(name, XATTR_LUSTRE_LOV) == 0);
+ rc = lod_declare_layout_purge(env, dt, buf, th);
} else if (S_ISREG(mode) &&
strlen(name) >= sizeof(XATTR_LUSTRE_LOV) + 3 &&
allowed_lustre_lov(name)) {
RETURN(-ENOENT);
rc = lod_declare_modify_layout(env, dt, name, buf, th);
- } else if (strncmp(name, XATTR_NAME_LMV, strlen(XATTR_NAME_LMV)) == 0 &&
- strlen(name) > strlen(XATTR_NAME_LMV)) {
- const char *op = name + strlen(XATTR_NAME_LMV);
-
- rc = -ENOTSUPP;
- if (strcmp(op, ".add") == 0)
- rc = lod_dir_declare_layout_add(env, dt, buf, th);
- else if (strcmp(op, ".del") == 0)
- rc = lod_dir_declare_layout_delete(env, dt, buf, th);
- else if (strcmp(op, ".set") == 0)
- rc = lod_sub_declare_xattr_set(env, next, buf,
- XATTR_NAME_LMV, fl, th);
-
- RETURN(rc);
} else if (S_ISDIR(mode)) {
rc = lod_dir_declare_xattr_set(env, dt, buf, name, fl, th);
} else if (strcmp(name, XATTR_NAME_FID) == 0) {
struct dt_object *dt,
const char *name, struct thandle *th)
{
- struct dt_object *next = dt_object_child(dt);
- struct lod_object *lo = lod_dt_obj(dt);
- int rc;
- int i;
+ struct dt_object *next = dt_object_child(dt);
+ struct lod_object *lo = lod_dt_obj(dt);
+ int i;
+ int rc;
+
ENTRY;
rc = lod_sub_xattr_del(env, next, name, th);
RETURN(rc);
for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
- LASSERT(lo->ldo_stripe[i]);
+ if (!lo->ldo_stripe[i])
+ continue;
+
+ if (!dt_object_exists(lo->ldo_stripe[i]))
+ continue;
rc = lod_sub_xattr_del(env, lo->ldo_stripe[i], name, th);
if (rc != 0)
if (rc != 0)
RETURN(rc);
- attr->la_valid = LA_ATIME | LA_MTIME | LA_CTIME |
+ attr->la_valid = LA_ATIME | LA_MTIME | LA_CTIME | LA_FLAGS |
LA_MODE | LA_UID | LA_GID | LA_TYPE | LA_PROJID;
dof->dof_type = DFT_DIR;
if (i && OBD_FAIL_CHECK(OBD_FAIL_MDS_STRIPE_CREATE))
continue;
- /* if it's source stripe of migrating directory, don't create */
- if (!((lo->ldo_dir_hash_type & LMV_HASH_FLAG_MIGRATION) &&
- i >= lo->ldo_dir_migrate_offset)) {
+ /* don't create stripe if:
+ * 1. it's source stripe of migrating directory
+ * 2. it's existed stripe of splitting directory
+ */
+ if ((lod_is_migrating(lo) && i >= lo->ldo_dir_migrate_offset) ||
+ (lod_is_splitting(lo) && i < lo->ldo_dir_split_offset)) {
+ if (!dt_object_exists(dto))
+ GOTO(out, rc = -EINVAL);
+ } else {
dt_write_lock(env, dto, DT_TGT_CHILD);
rc = lod_sub_create(env, dto, attr, NULL, dof, th);
if (rc != 0) {
GOTO(out, rc);
}
- rec->rec_fid = lu_object_fid(&dt->do_lu);
- rc = lod_sub_insert(env, dto, (struct dt_rec *)rec,
- (const struct dt_key *)dotdot, th);
- if (rc != 0)
- GOTO(out, rc);
-
if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_SLAVE_LMV) ||
cfs_fail_val != i) {
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_SLAVE_LMV) &&
cpu_to_le32(i);
rc = lod_sub_xattr_set(env, dto, &slave_lmv_buf,
- XATTR_NAME_LMV, fl, th);
+ XATTR_NAME_LMV, 0, th);
if (rc != 0)
GOTO(out, rc);
}
+ /* don't insert stripe if it's existed stripe of splitting
+ * directory (this directory is striped).
+ * NB, plain directory will insert itself as the first
+ * stripe in target.
+ */
+ if (lod_is_splitting(lo) && lo->ldo_dir_split_offset > 1 &&
+ lo->ldo_dir_split_offset > i)
+ continue;
+
+ rec->rec_fid = lu_object_fid(&dt->do_lu);
+ rc = lod_sub_insert(env, dto, (struct dt_rec *)rec,
+ (const struct dt_key *)dotdot, th);
+ if (rc != 0)
+ GOTO(out, rc);
+
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_SLAVE_NAME) &&
cfs_fail_val == i)
snprintf(stripe_name, sizeof(info->lti_key), DFID":%d",
LASSERT(lo);
if (lo->ldo_comp_cnt == 0 && !lo->ldo_is_foreign) {
- lod_striping_free(env, lo);
+ lod_striping_free_nolock(env, lo);
rc = lod_sub_xattr_del(env, next, XATTR_NAME_LOV, th);
RETURN(rc);
}
CDEBUG(D_LAYOUT, "repeating component %d\n", index);
- OBD_ALLOC(comp_array, sizeof(*comp_array) * new_cnt);
+ OBD_ALLOC_PTR_ARRAY(comp_array, new_cnt);
if (comp_array == NULL)
GOTO(out, rc = -ENOMEM);
new_comp->llc_flags &= ~LCME_FL_INIT;
new_comp->llc_stripe = NULL;
new_comp->llc_stripes_allocated = 0;
+ new_comp->llc_ost_indices = NULL;
new_comp->llc_stripe_offset = LOV_OFFSET_DEFAULT;
/* for uninstantiated components, layout gen stores default stripe
* offset */
new_comp->llc_ostlist.op_array = op_array;
}
- OBD_FREE(lo->ldo_comp_entries,
- sizeof(*comp_array) * lo->ldo_comp_cnt);
+ OBD_FREE_PTR_ARRAY(lo->ldo_comp_entries, lo->ldo_comp_cnt);
lo->ldo_comp_entries = comp_array;
lo->ldo_comp_cnt = new_cnt;
EXIT;
out:
if (rc)
- OBD_FREE(comp_array, sizeof(*comp_array) * new_cnt);
+ OBD_FREE_PTR_ARRAY(comp_array, new_cnt);
return rc;
}
RETURN(0);
if (info->lti_comp_size > 0) {
- OBD_FREE(info->lti_comp_idx,
- info->lti_comp_size * sizeof(__u32));
+ OBD_FREE_PTR_ARRAY(info->lti_comp_idx, info->lti_comp_size);
info->lti_comp_size = 0;
}
- OBD_ALLOC(info->lti_comp_idx, comp_cnt * sizeof(__u32));
+ OBD_ALLOC_PTR_ARRAY(info->lti_comp_idx, comp_cnt);
if (!info->lti_comp_idx)
RETURN(-ENOMEM);
lu_object_put(env, &obj->do_lu);
lod_comp->llc_stripe[j] = NULL;
}
- OBD_FREE(lod_comp->llc_stripe, sizeof(*lod_comp->llc_stripe) *
- lod_comp->llc_stripes_allocated);
+ OBD_FREE_PTR_ARRAY(lod_comp->llc_stripe,
+ lod_comp->llc_stripes_allocated);
lod_comp->llc_stripe = NULL;
- OBD_FREE(lod_comp->llc_ost_indices,
- sizeof(__u32) * lod_comp->llc_stripes_allocated);
+ OBD_FREE_PTR_ARRAY(lod_comp->llc_ost_indices,
+ lod_comp->llc_stripes_allocated);
lod_comp->llc_ost_indices = NULL;
lod_comp->llc_stripes_allocated = 0;
}
if (info->lti_count > 0) {
struct lod_layout_component *comp_array;
- OBD_ALLOC(comp_array, sizeof(*comp_array) * info->lti_count);
+ OBD_ALLOC_PTR_ARRAY(comp_array, info->lti_count);
if (comp_array == NULL)
GOTO(out, rc = -ENOMEM);
sizeof(*comp_array));
}
- OBD_FREE(lo->ldo_comp_entries,
- sizeof(*comp_array) * lo->ldo_comp_cnt);
+ OBD_FREE_PTR_ARRAY(lo->ldo_comp_entries, lo->ldo_comp_cnt);
lo->ldo_comp_entries = comp_array;
lo->ldo_comp_cnt = info->lti_count;
} else {
LASSERT(lo->ldo_mirror_count == 1);
+ mutex_lock(&lo->ldo_layout_mutex);
+
rc = lod_layout_del_prep_layout(env, lo, th);
if (rc < 0)
GOTO(out, rc);
EXIT;
out:
if (rc)
- lod_striping_free(env, lo);
+ lod_striping_free_nolock(env, lo);
+
+ mutex_unlock(&lo->ldo_layout_mutex);
+
return rc;
}
struct dt_object *dt, const struct lu_buf *buf,
const char *name, int fl, struct thandle *th)
{
- struct dt_object *next = dt_object_child(dt);
- int rc;
+ struct dt_object *next = dt_object_child(dt);
+ int rc;
+
ENTRY;
if (S_ISDIR(dt->do_lu.lo_header->loh_attr) &&
- strcmp(name, XATTR_NAME_LMV) == 0) {
- rc = lod_dir_striping_create(env, dt, NULL, NULL, th);
- RETURN(rc);
- } else if (S_ISDIR(dt->do_lu.lo_header->loh_attr) &&
- strncmp(name, XATTR_NAME_LMV, strlen(XATTR_NAME_LMV)) == 0 &&
- strlen(name) > strlen(XATTR_NAME_LMV)) {
- const char *op = name + strlen(XATTR_NAME_LMV);
-
- rc = -ENOTSUPP;
- /*
- * XATTR_NAME_LMV".add" is never called, but only declared,
- * because lod_xattr_set_lmv() will do the addition.
- */
- if (strcmp(op, ".del") == 0)
- rc = lod_dir_layout_delete(env, dt, buf, th);
- else if (strcmp(op, ".set") == 0)
- rc = lod_sub_xattr_set(env, next, buf, XATTR_NAME_LMV,
- fl, th);
+ !strcmp(name, XATTR_NAME_LMV)) {
+ switch (fl) {
+ case LU_XATTR_CREATE:
+ rc = lod_dir_striping_create(env, dt, NULL, NULL, th);
+ break;
+ case 0:
+ case LU_XATTR_REPLACE:
+ rc = lod_dir_layout_set(env, dt, buf, fl, th);
+ break;
+ default:
+ LBUG();
+ }
RETURN(rc);
} else if (S_ISDIR(dt->do_lu.lo_header->loh_attr) &&
lod_striping_free(env, lod_dt_obj(dt));
rc = lod_sub_xattr_set(env, next, buf, name, fl, th);
+ } else if (fl & LU_XATTR_PURGE) {
+ rc = lod_layout_purge(env, dt, buf, th);
} else if (dt_object_remote(dt)) {
/* This only happens during migration, see
* mdd_migrate_create(), in which Master MDT will
if (!dto)
continue;
+ if (!dt_object_exists(dto))
+ continue;
+
rc = lod_sub_declare_xattr_del(env, dto, name, th);
if (rc != 0)
break;
static int lod_xattr_del(const struct lu_env *env, struct dt_object *dt,
const char *name, struct thandle *th)
{
- struct dt_object *next = dt_object_child(dt);
- struct lod_object *lo = lod_dt_obj(dt);
- int rc;
- int i;
+ int rc;
+
ENTRY;
if (!strcmp(name, XATTR_NAME_LOV) || !strcmp(name, XATTR_NAME_LMV))
lod_striping_free(env, lod_dt_obj(dt));
- rc = lod_sub_xattr_del(env, next, name, th);
- if (rc != 0 || !S_ISDIR(dt->do_lu.lo_header->loh_attr))
- RETURN(rc);
-
- if (!strcmp(name, XATTR_NAME_LMV))
- RETURN(0);
-
- if (lo->ldo_dir_stripe_count == 0)
- RETURN(0);
-
- for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
- struct dt_object *dto = lo->ldo_stripe[i];
-
- if (!dto)
- continue;
-
- rc = lod_sub_xattr_del(env, dto, name, th);
- if (rc != 0)
- break;
- }
+ rc = lod_xattr_del_internal(env, dt, name, th);
RETURN(rc);
}
lc->ldo_dir_stripe_count = 0;
}
+ if (!(lc->ldo_dir_hash_type & LMV_HASH_TYPE_MASK))
+ lc->ldo_dir_hash_type |=
+ d->lod_mdt_descs.ltd_lmv_desc.ld_pattern;
+
CDEBUG(D_INFO, "final dir stripe [%hu %d %u]\n",
lc->ldo_dir_stripe_count,
(int)lc->ldo_dir_stripe_offset, lc->ldo_dir_hash_type);
EXIT;
}
-#define ll_do_div64(aaa,bbb) do_div((aaa), (bbb))
/**
* Size initialization on late striping.
*
continue;
LASSERT(objects != NULL && stripe_size != 0);
- /* ll_do_div64(a, b) returns a % b, and a = a / b */
- ll_do_div64(size, (__u64)stripe_size);
- stripe = ll_do_div64(size, (__u64)stripe_count);
+ do_div(size, stripe_size);
+ stripe = do_div(size, stripe_count);
LASSERT(objects[stripe] != NULL);
size = size * stripe_size;
offs = attr->la_size;
- size += ll_do_div64(offs, stripe_size);
+ size += do_div(offs, stripe_size);
attr->la_valid = LA_SIZE;
attr->la_size = size;
int rc = 0, i, j;
ENTRY;
+ mutex_lock(&lo->ldo_layout_mutex);
+
LASSERT((lo->ldo_comp_cnt != 0 && lo->ldo_comp_entries != NULL) ||
lo->ldo_is_foreign);
if (rc)
GOTO(out, rc);
+ lo->ldo_comp_cached = 1;
+
rc = lod_generate_and_set_lovea(env, lo, th);
if (rc)
GOTO(out, rc);
- lo->ldo_comp_cached = 1;
+ mutex_unlock(&lo->ldo_layout_mutex);
+
RETURN(0);
out:
- lod_striping_free(env, lo);
+ lod_striping_free_nolock(env, lo);
+ mutex_unlock(&lo->ldo_layout_mutex);
+
RETURN(rc);
}
{
if (data->locd_declare)
return lod_sub_declare_destroy(env, dt, th);
- else if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_SPEOBJ) ||
- stripe_idx == cfs_fail_val)
+
+ if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_SPEOBJ) ||
+ stripe_idx == cfs_fail_val)
return lod_sub_destroy(env, dt, th);
- else
- return 0;
+
+ return 0;
}
/**
}
static int lod_declare_instantiate_components(const struct lu_env *env,
- struct lod_object *lo, struct thandle *th)
+ struct lod_object *lo,
+ struct thandle *th,
+ __u64 reserve)
{
struct lod_thread_info *info = lod_env_info(env);
int i;
for (i = 0; i < info->lti_count; i++) {
rc = lod_qos_prep_create(env, lo, NULL, th,
- info->lti_comp_idx[i]);
+ info->lti_comp_idx[i], reserve);
if (rc)
break;
}
*/
static bool lod_sel_osts_allowed(const struct lu_env *env,
struct lod_object *lo,
- int index, __u64 extension_size,
+ int index, __u64 reserve,
struct lu_extent *extent,
struct lu_extent *comp_extent, int write)
{
struct lod_layout_component *lod_comp = &lo->ldo_comp_entries[index];
struct lod_device *lod = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
- struct obd_statfs *sfs = &lod_env_info(env)->lti_osfs;
+ struct lod_thread_info *tinfo = lod_env_info(env);
+ struct obd_statfs *sfs = &tinfo->lti_osfs;
__u64 available = 0;
- __u64 size;
bool ret = true;
int i, rc;
LASSERT(lod_comp->llc_stripe_count != 0);
- if (write == 0 ||
- (extent->e_start == 0 && extent->e_end == OBD_OBJECT_EOF)) {
- /* truncate or append */
- size = extension_size;
- } else {
- /* In case of write op, check the real write extent,
- * it may be larger than the extension_size */
- size = roundup(min(extent->e_end, comp_extent->e_end) -
- max(extent->e_start, comp_extent->e_start),
- extension_size);
- }
- /* extension_size is file level, so we must divide by stripe count to
- * compare it to available space on a single OST */
- size /= lod_comp->llc_stripe_count;
-
lod_getref(&lod->lod_ost_descs);
for (i = 0; i < lod_comp->llc_stripe_count; i++) {
int index = lod_comp->llc_ost_indices[i];
if (j < lod_comp->llc_stripe_count)
continue;
- if (!cfs_bitmap_check(lod->lod_ost_bitmap, index)) {
+ if (!test_bit(index, lod->lod_ost_bitmap)) {
CDEBUG(D_LAYOUT, "ost %d no longer present\n", index);
ret = false;
break;
break;
}
- if (sfs->os_state & OS_STATE_ENOSPC ||
- sfs->os_state & OS_STATE_READONLY ||
- sfs->os_state & OS_STATE_DEGRADED) {
+ if (sfs->os_state & OS_STATFS_ENOSPC ||
+ sfs->os_state & OS_STATFS_READONLY ||
+ sfs->os_state & OS_STATFS_DEGRADED) {
CDEBUG(D_LAYOUT, "ost %d is not availble for SEL "
"extension, state %u\n", index, sfs->os_state);
ret = false;
(100ull * sfs->os_bavail) / sfs->os_blocks,
(100ull * sfs->os_bfree) / sfs->os_blocks);
- if (size * repeated > available) {
+ if (reserve * repeated > available) {
ret = false;
CDEBUG(D_LAYOUT, "low space on ost %d, available %llu "
- "< extension size %llu\n", index, available,
- extension_size);
+ "< extension size %llu repeated %d\n", index,
+ available, reserve, repeated);
break;
}
}
return new_end;
}
+/**
+ * Calculate the exact reservation (per-OST extension_size) on the OSTs being
+ * instantiated. It needs to be calculated in advance and taken into account at
+ * the instantiation time, because otherwise lod_statfs_and_check() may consider
+ * an OST as OK, but SEL needs its extension_size to fit the free space and the
+ * OST may turn out to be low-on-space, thus inappropriate OST may be used and
+ * ENOSPC occurs.
+ *
+ * \param[in] lod_comp lod component we are checking
+ *
+ * \retval size to reserved on each OST of lod_comp's stripe.
+ */
+static __u64 lod_sel_stripe_reserved(struct lod_layout_component *lod_comp)
+{
+ /* extension_size is file level, so we must divide by stripe count to
+ * compare it to available space on a single OST */
+ return lod_comp->llc_stripe_size * SEL_UNIT_SIZE /
+ lod_comp->llc_stripe_count;
+}
+
/* As lod_sel_handler() could be re-entered for the same component several
* times, this is the data for the next call. Fields could be changed to
* component indexes when needed, (e.g. if there is no need to instantiate
struct lod_layout_component *lod_comp;
struct lod_layout_component *prev;
struct lod_layout_component *next = NULL;
- __u64 extension_size;
+ __u64 extension_size, reserve;
__u64 new_end = 0;
bool repeated;
int change = 0;
RETURN(-EINVAL);
}
+ reserve = lod_sel_stripe_reserved(lod_comp);
+
if (!prev->llc_stripe) {
CDEBUG(D_LAYOUT, "Previous component not inited\n");
info->lti_count = 1;
info->lti_comp_idx[0] = index - 1;
- rc = lod_declare_instantiate_components(env, lo, th);
+ rc = lod_declare_instantiate_components(env, lo, th, reserve);
/* ENOSPC tells us we can't use this component. If there is
* a next or we are repeating, we either spill over (next) or
* extend the original comp (repeat). Otherwise, return the
}
if (sd->sd_force == 0 && rc == 0)
- rc = !lod_sel_osts_allowed(env, lo, index - 1,
- extension_size, extent,
+ rc = !lod_sel_osts_allowed(env, lo, index - 1, reserve, extent,
&lod_comp->llc_extent, write);
repeated = !!(sd->sd_repeat);
RETURN(-EALREADY);
lod_obj_inc_layout_gen(lo);
- rc = lod_declare_instantiate_components(env, lo, th);
+ rc = lod_declare_instantiate_components(env, lo, th, 0);
EXIT;
out:
if (rc)
ost = OST_TGT(lod, idx);
if (ost->ltd_statfs.os_state &
- (OS_STATE_READONLY | OS_STATE_ENOSPC | OS_STATE_ENOINO |
- OS_STATE_NOPRECREATE) ||
+ (OS_STATFS_READONLY | OS_STATFS_ENOSPC | OS_STATFS_ENOINO |
+ OS_STATFS_NOPRECREATE) ||
ost->ltd_active == 0) {
CDEBUG(D_LAYOUT, DFID ": mirror %d OST%d unavail, rc = %d\n",
PFID(lod_object_fid(lo)), index, idx, rc);
}
/* 2nd pick is for the primary mirror containing unavail OST */
- if (lo->ldo_mirrors[index].lme_primary && second_pick < 0)
+ if (lo->ldo_mirrors[index].lme_prefer && second_pick < 0)
second_pick = index;
/* 3rd pick is for non-primary mirror containing unavail OST */
* we found a non-primary 1st pick, we'd like to find a
* potential pirmary mirror.
*/
- if (picked >= 0 && !lo->ldo_mirrors[index].lme_primary)
+ if (picked >= 0 && !lo->ldo_mirrors[index].lme_prefer)
continue;
/* check the availability of OSTs */
* primary with all OSTs are available, this is the perfect
* 1st pick.
*/
- if (lo->ldo_mirrors[index].lme_primary)
+ if (lo->ldo_mirrors[index].lme_prefer)
break;
} /* for all mirrors */
lo->ldo_layout_gen = layout_version & 0xffff;
}
- rc = lod_declare_instantiate_components(env, lo, th);
+ rc = lod_declare_instantiate_components(env, lo, th, 0);
if (rc)
GOTO(out, rc);
LASSERT(mlc->mlc_opc == MD_LAYOUT_WRITE ||
mlc->mlc_opc == MD_LAYOUT_RESYNC);
- /* look for the primary mirror */
+ /* look for the first preferred mirror */
for (i = 0; i < lo->ldo_mirror_count; i++) {
if (lo->ldo_mirrors[i].lme_stale)
continue;
-
- LASSERTF(primary < 0, DFID " has multiple primary: %u / %u",
- PFID(lod_object_fid(lo)),
- lo->ldo_mirrors[i].lme_id,
- lo->ldo_mirrors[primary].lme_id);
+ if (lo->ldo_mirrors[i].lme_prefer == 0)
+ continue;
primary = i;
+ break;
}
if (primary < 0) {
- CERROR(DFID ": doesn't have a primary mirror\n",
- PFID(lod_object_fid(lo)));
- GOTO(out, rc = -ENODATA);
+ /* no primary, use any in-sync */
+ for (i = 0; i < lo->ldo_mirror_count; i++) {
+ if (lo->ldo_mirrors[i].lme_stale)
+ continue;
+ primary = i;
+ break;
+ }
+ if (primary < 0) {
+ CERROR(DFID ": doesn't have a primary mirror\n",
+ PFID(lod_object_fid(lo)));
+ GOTO(out, rc = -ENODATA);
+ }
}
CDEBUG(D_LAYOUT, DFID": found primary %u\n",
lo->ldo_flr_state = LCM_FL_SYNC_PENDING;
}
- rc = lod_declare_instantiate_components(env, lo, th);
+ rc = lod_declare_instantiate_components(env, lo, th, 0);
if (rc)
GOTO(out, rc);
RETURN(rc);
}
-static int lod_declare_layout_change(const struct lu_env *env,
- struct dt_object *dt, struct md_layout_change *mlc,
- struct thandle *th)
-{
- struct lod_thread_info *info = lod_env_info(env);
- struct lod_object *lo = lod_dt_obj(dt);
- int rc;
- ENTRY;
-
- if (!S_ISREG(dt->do_lu.lo_header->loh_attr) || !dt_object_exists(dt) ||
- dt_object_remote(dt_object_child(dt)))
- RETURN(-EINVAL);
+typedef int (*mlc_handler)(const struct lu_env *env, struct dt_object *dt,
+ const struct md_layout_change *mlc,
+ struct thandle *th);
- rc = lod_striping_load(env, lo);
+/**
+ * Attach stripes after target's for migrating directory. NB, we
+ * only need to declare this, the actual work is done inside
+ * lod_xattr_set_lmv().
+ *
+ * \param[in] env execution environment
+ * \param[in] dt target object
+ * \param[in] mlc layout change data
+ * \param[in] th transaction handle
+ *
+ * \retval 0 on success
+ * \retval negative if failed
+ */
+static int lod_dir_declare_layout_attach(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct md_layout_change *mlc,
+ struct thandle *th)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_device *lod = lu2lod_dev(dt->do_lu.lo_dev);
+ struct lod_tgt_descs *ltd = &lod->lod_mdt_descs;
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next = dt_object_child(dt);
+ struct dt_object_format *dof = &info->lti_format;
+ struct lmv_mds_md_v1 *lmv = mlc->mlc_buf.lb_buf;
+ struct dt_object **stripes;
+ __u32 stripe_count = le32_to_cpu(lmv->lmv_stripe_count);
+ struct lu_fid *fid = &info->lti_fid;
+ struct lod_tgt_desc *tgt;
+ struct dt_object *dto;
+ struct dt_device *tgt_dt;
+ int type = LU_SEQ_RANGE_ANY;
+ struct dt_insert_rec *rec = &info->lti_dt_rec;
+ char *stripe_name = info->lti_key;
+ struct lu_name *sname;
+ struct linkea_data ldata = { NULL };
+ struct lu_buf linkea_buf;
+ __u32 idx;
+ int i;
+ int rc;
+
+ ENTRY;
+
+ if (!lmv_is_sane(lmv))
+ RETURN(-EINVAL);
+
+ if (!dt_try_as_dir(env, dt))
+ return -ENOTDIR;
+
+ dof->dof_type = DFT_DIR;
+
+ OBD_ALLOC_PTR_ARRAY(stripes, (lo->ldo_dir_stripe_count + stripe_count));
+ if (!stripes)
+ RETURN(-ENOMEM);
+
+ for (i = 0; i < lo->ldo_dir_stripe_count; i++)
+ stripes[i] = lo->ldo_stripe[i];
+
+ rec->rec_type = S_IFDIR;
+
+ for (i = 0; i < stripe_count; i++) {
+ fid_le_to_cpu(fid,
+ &lmv->lmv_stripe_fids[i]);
+ if (!fid_is_sane(fid))
+ continue;
+
+ rc = lod_fld_lookup(env, lod, fid, &idx, &type);
+ if (rc)
+ GOTO(out, rc);
+
+ if (idx == lod2lu_dev(lod)->ld_site->ld_seq_site->ss_node_id) {
+ tgt_dt = lod->lod_child;
+ } else {
+ tgt = LTD_TGT(ltd, idx);
+ if (tgt == NULL)
+ GOTO(out, rc = -ESTALE);
+ tgt_dt = tgt->ltd_tgt;
+ }
+
+ dto = dt_locate_at(env, tgt_dt, fid,
+ lo->ldo_obj.do_lu.lo_dev->ld_site->ls_top_dev,
+ NULL);
+ if (IS_ERR(dto))
+ GOTO(out, rc = PTR_ERR(dto));
+
+ stripes[i + lo->ldo_dir_stripe_count] = dto;
+
+ if (!dt_try_as_dir(env, dto))
+ GOTO(out, rc = -ENOTDIR);
+
+ rc = lod_sub_declare_ref_add(env, dto, th);
+ if (rc)
+ GOTO(out, rc);
+
+ rec->rec_fid = lu_object_fid(&dto->do_lu);
+ rc = lod_sub_declare_insert(env, dto,
+ (const struct dt_rec *)rec,
+ (const struct dt_key *)dot, th);
+ if (rc)
+ GOTO(out, rc);
+
+ rc = lod_sub_declare_insert(env, dto,
+ (const struct dt_rec *)rec,
+ (const struct dt_key *)dotdot, th);
+ if (rc)
+ GOTO(out, rc);
+
+ rc = lod_sub_declare_xattr_set(env, dto, &mlc->mlc_buf,
+ XATTR_NAME_LMV, 0, th);
+ if (rc)
+ GOTO(out, rc);
+
+ snprintf(stripe_name, sizeof(info->lti_key), DFID":%u",
+ PFID(lu_object_fid(&dto->do_lu)),
+ i + lo->ldo_dir_stripe_count);
+
+ sname = lod_name_get(env, stripe_name, strlen(stripe_name));
+ rc = linkea_links_new(&ldata, &info->lti_linkea_buf,
+ sname, lu_object_fid(&dt->do_lu));
+ if (rc)
+ GOTO(out, rc);
+
+ linkea_buf.lb_buf = ldata.ld_buf->lb_buf;
+ linkea_buf.lb_len = ldata.ld_leh->leh_len;
+ rc = lod_sub_declare_xattr_set(env, dto, &linkea_buf,
+ XATTR_NAME_LINK, 0, th);
+ if (rc)
+ GOTO(out, rc);
+
+ rc = lod_sub_declare_insert(env, next,
+ (const struct dt_rec *)rec,
+ (const struct dt_key *)stripe_name,
+ th);
+ if (rc)
+ GOTO(out, rc);
+
+ rc = lod_sub_declare_ref_add(env, next, th);
+ if (rc)
+ GOTO(out, rc);
+ }
+
+ if (lo->ldo_stripe)
+ OBD_FREE_PTR_ARRAY(lo->ldo_stripe,
+ lo->ldo_dir_stripes_allocated);
+ lo->ldo_stripe = stripes;
+ lo->ldo_dir_migrate_offset = lo->ldo_dir_stripe_count;
+ lo->ldo_dir_migrate_hash = le32_to_cpu(lmv->lmv_hash_type);
+ lo->ldo_dir_stripe_count += stripe_count;
+ lo->ldo_dir_stripes_allocated += stripe_count;
+
+ /* plain directory split creates target as a plain directory, while
+ * after source attached as the first stripe, it becomes a striped
+ * directory, set correct do_index_ops, otherwise it can't be unlinked.
+ */
+ dt->do_index_ops = &lod_striped_index_ops;
+
+ RETURN(0);
+out:
+ i = lo->ldo_dir_stripe_count;
+ while (i < lo->ldo_dir_stripe_count + stripe_count && stripes[i])
+ dt_object_put(env, stripes[i++]);
+
+ OBD_FREE_PTR_ARRAY(stripes, stripe_count + lo->ldo_dir_stripe_count);
+ return rc;
+}
+
+static int lod_dir_declare_layout_detach(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct md_layout_change *unused,
+ struct thandle *th)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next = dt_object_child(dt);
+ char *stripe_name = info->lti_key;
+ struct dt_object *dto;
+ int i;
+ int rc = 0;
+
+ if (!dt_try_as_dir(env, dt))
+ return -ENOTDIR;
+
+ if (!lo->ldo_dir_stripe_count)
+ return lod_sub_declare_delete(env, next,
+ (const struct dt_key *)dotdot, th);
+
+ for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
+ dto = lo->ldo_stripe[i];
+ if (!dto)
+ continue;
+
+ if (!dt_try_as_dir(env, dto))
+ return -ENOTDIR;
+
+ rc = lod_sub_declare_delete(env, dto,
+ (const struct dt_key *)dotdot, th);
+ if (rc)
+ return rc;
+
+ snprintf(stripe_name, sizeof(info->lti_key), DFID":%d",
+ PFID(lu_object_fid(&dto->do_lu)), i);
+
+ rc = lod_sub_declare_delete(env, next,
+ (const struct dt_key *)stripe_name, th);
+ if (rc)
+ return rc;
+
+ rc = lod_sub_declare_ref_del(env, next, th);
+ if (rc)
+ return rc;
+ }
+
+ return 0;
+}
+
+static int dt_dir_is_empty(const struct lu_env *env,
+ struct dt_object *obj)
+{
+ struct dt_it *it;
+ const struct dt_it_ops *iops;
+ int rc;
+
+ ENTRY;
+
+ if (!dt_try_as_dir(env, obj))
+ RETURN(-ENOTDIR);
+
+ iops = &obj->do_index_ops->dio_it;
+ it = iops->init(env, obj, LUDA_64BITHASH);
+ if (IS_ERR(it))
+ RETURN(PTR_ERR(it));
+
+ rc = iops->get(env, it, (const struct dt_key *)"");
+ if (rc > 0) {
+ int i;
+
+ for (rc = 0, i = 0; rc == 0 && i < 3; ++i)
+ rc = iops->next(env, it);
+ if (!rc)
+ rc = -ENOTEMPTY;
+ else if (rc == 1)
+ rc = 0;
+ } else if (!rc) {
+ /* Huh? Index contains no zero key? */
+ rc = -EIO;
+ }
+
+ iops->put(env, it);
+ iops->fini(env, it);
+
+ RETURN(rc);
+}
+
+static int lod_dir_declare_layout_shrink(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct md_layout_change *mlc,
+ struct thandle *th)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next = dt_object_child(dt);
+ struct lmv_user_md *lmu = mlc->mlc_buf.lb_buf;
+ __u32 final_stripe_count;
+ char *stripe_name = info->lti_key;
+ struct lu_buf *lmv_buf = &info->lti_buf;
+ struct dt_object *dto;
+ int i;
+ int rc;
+
+ LASSERT(lmu);
+
+ if (!dt_try_as_dir(env, dt))
+ return -ENOTDIR;
+
+ /* shouldn't be called on plain directory */
+ LASSERT(lo->ldo_dir_stripe_count);
+
+ lmv_buf->lb_buf = &info->lti_lmv.lmv_md_v1;
+ lmv_buf->lb_len = sizeof(info->lti_lmv.lmv_md_v1);
+
+ final_stripe_count = le32_to_cpu(lmu->lum_stripe_count);
+ LASSERT(final_stripe_count &&
+ final_stripe_count < lo->ldo_dir_stripe_count);
+
+ for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
+ dto = lo->ldo_stripe[i];
+ if (!dto)
+ continue;
+
+ if (i < final_stripe_count) {
+ if (final_stripe_count == 1)
+ continue;
+
+ rc = lod_sub_declare_xattr_set(env, dto, lmv_buf,
+ XATTR_NAME_LMV,
+ LU_XATTR_REPLACE, th);
+ if (rc)
+ return rc;
+
+ continue;
+ }
+
+ rc = dt_dir_is_empty(env, dto);
+ if (rc < 0)
+ return rc;
+
+ rc = lod_sub_declare_ref_del(env, dto, th);
+ if (rc)
+ return rc;
+
+ rc = lod_sub_declare_destroy(env, dto, th);
+ if (rc)
+ return rc;
+
+ snprintf(stripe_name, sizeof(info->lti_key), DFID":%d",
+ PFID(lu_object_fid(&dto->do_lu)), i);
+
+ rc = lod_sub_declare_delete(env, next,
+ (const struct dt_key *)stripe_name, th);
+ if (rc)
+ return rc;
+
+ rc = lod_sub_declare_ref_del(env, next, th);
+ if (rc)
+ return rc;
+ }
+
+ rc = lod_sub_declare_xattr_set(env, next, lmv_buf, XATTR_NAME_LMV,
+ LU_XATTR_REPLACE, th);
+ return rc;
+}
+
+/**
+ * Allocate stripes for split directory.
+ *
+ * \param[in] env execution environment
+ * \param[in] dt target object
+ * \param[in] mlc layout change data
+ * \param[in] th transaction handle
+ *
+ * \retval 0 on success
+ * \retval negative if failed
+ */
+static int lod_dir_declare_layout_split(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct md_layout_change *mlc,
+ struct thandle *th)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_device *lod = lu2lod_dev(dt->do_lu.lo_dev);
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object_format *dof = &info->lti_format;
+ struct lmv_user_md_v1 *lum = mlc->mlc_spec->u.sp_ea.eadata;
+ struct dt_object **stripes;
+ u32 stripe_count;
+ u32 saved_count;
+ int i;
+ int rc;
+
+ ENTRY;
+
+ LASSERT(le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC);
+ LASSERT(le32_to_cpu(lum->lum_stripe_offset) == LMV_OFFSET_DEFAULT);
+
+ saved_count = lo->ldo_dir_stripes_allocated;
+ stripe_count = le32_to_cpu(lum->lum_stripe_count);
+ if (stripe_count <= saved_count)
+ RETURN(-EINVAL);
+
+ dof->dof_type = DFT_DIR;
+
+ OBD_ALLOC(stripes, sizeof(*stripes) * stripe_count);
+ if (!stripes)
+ RETURN(-ENOMEM);
+
+ for (i = 0; i < lo->ldo_dir_stripes_allocated; i++)
+ stripes[i] = lo->ldo_stripe[i];
+
+ lod_qos_statfs_update(env, lod, &lod->lod_mdt_descs);
+ rc = lod_mdt_alloc_qos(env, lo, stripes, saved_count, stripe_count);
+ if (rc == -EAGAIN)
+ rc = lod_mdt_alloc_rr(env, lo, stripes, saved_count,
+ stripe_count);
+ if (rc < 0) {
+ OBD_FREE(stripes, sizeof(*stripes) * stripe_count);
+ RETURN(rc);
+ }
+
+ LASSERT(rc > saved_count);
+ OBD_FREE(lo->ldo_stripe,
+ sizeof(*stripes) * lo->ldo_dir_stripes_allocated);
+ lo->ldo_stripe = stripes;
+ lo->ldo_dir_striped = 1;
+ lo->ldo_dir_stripe_count = rc;
+ lo->ldo_dir_stripes_allocated = stripe_count;
+ lo->ldo_dir_split_hash = lo->ldo_dir_hash_type;
+ lo->ldo_dir_hash_type = le32_to_cpu(lum->lum_hash_type);
+ if (!lmv_is_known_hash_type(lo->ldo_dir_hash_type))
+ lo->ldo_dir_hash_type =
+ lod->lod_mdt_descs.ltd_lmv_desc.ld_pattern;
+ lo->ldo_dir_hash_type |= LMV_HASH_FLAG_SPLIT | LMV_HASH_FLAG_MIGRATION;
+ lo->ldo_dir_split_offset = saved_count;
+ lo->ldo_dir_layout_version++;
+ lo->ldo_dir_stripe_loaded = 1;
+
+ rc = lod_dir_declare_create_stripes(env, dt, mlc->mlc_attr, dof, th);
+ if (rc)
+ lod_striping_free(env, lo);
+
+ RETURN(rc);
+}
+
+/*
+ * detach all stripes from dir master object, NB, stripes are not destroyed, but
+ * deleted from it's parent namespace, this function is called in two places:
+ * 1. mdd_migrate_mdt() detach stripes from source, and attach them to
+ * target.
+ * 2. mdd_dir_layout_update() detach stripe before turning 1-stripe directory to
+ * a plain directory.
+ *
+ * \param[in] env execution environment
+ * \param[in] dt target object
+ * \param[in] mlc layout change data
+ * \param[in] th transaction handle
+ *
+ * \retval 0 on success
+ * \retval negative if failed
+ */
+static int lod_dir_layout_detach(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct md_layout_change *mlc,
+ struct thandle *th)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next = dt_object_child(dt);
+ char *stripe_name = info->lti_key;
+ struct dt_object *dto;
+ int i;
+ int rc = 0;
+
+ ENTRY;
+
+ if (!lo->ldo_dir_stripe_count) {
+ /* plain directory delete .. */
+ rc = lod_sub_delete(env, next,
+ (const struct dt_key *)dotdot, th);
+ RETURN(rc);
+ }
+
+ for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
+ dto = lo->ldo_stripe[i];
+ if (!dto)
+ continue;
+
+ rc = lod_sub_delete(env, dto,
+ (const struct dt_key *)dotdot, th);
+ if (rc)
+ break;
+
+ snprintf(stripe_name, sizeof(info->lti_key), DFID":%d",
+ PFID(lu_object_fid(&dto->do_lu)), i);
+
+ rc = lod_sub_delete(env, next,
+ (const struct dt_key *)stripe_name, th);
+ if (rc)
+ break;
+
+ rc = lod_sub_ref_del(env, next, th);
+ if (rc)
+ break;
+ }
+
+ for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
+ dto = lo->ldo_stripe[i];
+ if (dto)
+ dt_object_put(env, dto);
+ }
+ OBD_FREE_PTR_ARRAY(lo->ldo_stripe, lo->ldo_dir_stripes_allocated);
+ lo->ldo_stripe = NULL;
+ lo->ldo_dir_stripes_allocated = 0;
+ lo->ldo_dir_stripe_count = 0;
+ dt->do_index_ops = &lod_index_ops;
+
+ RETURN(rc);
+}
+
+static int lod_dir_layout_shrink(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct md_layout_change *mlc,
+ struct thandle *th)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct lod_device *lod = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
+ struct dt_object *next = dt_object_child(dt);
+ struct lmv_user_md *lmu = mlc->mlc_buf.lb_buf;
+ __u32 final_stripe_count;
+ char *stripe_name = info->lti_key;
+ struct dt_object *dto;
+ struct lu_buf *lmv_buf = &info->lti_buf;
+ struct lmv_mds_md_v1 *lmv = &info->lti_lmv.lmv_md_v1;
+ u32 mdtidx;
+ int type = LU_SEQ_RANGE_ANY;
+ int i;
+ int rc;
+
+ ENTRY;
+
+ final_stripe_count = le32_to_cpu(lmu->lum_stripe_count);
+
+ lmv_buf->lb_buf = lmv;
+ lmv_buf->lb_len = sizeof(*lmv);
+ lmv->lmv_magic = cpu_to_le32(LMV_MAGIC_STRIPE);
+ lmv->lmv_stripe_count = cpu_to_le32(final_stripe_count);
+ lmv->lmv_hash_type = cpu_to_le32(lo->ldo_dir_hash_type) &
+ cpu_to_le32(LMV_HASH_TYPE_MASK);
+ lmv->lmv_layout_version =
+ cpu_to_le32(lo->ldo_dir_layout_version + 1);
+
+ for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
+ dto = lo->ldo_stripe[i];
+ if (!dto)
+ continue;
+
+ if (i < final_stripe_count) {
+ /* if only one stripe left, no need to update
+ * LMV because this stripe will replace master
+ * object and act as a plain directory.
+ */
+ if (final_stripe_count == 1)
+ continue;
+
+
+ rc = lod_fld_lookup(env, lod,
+ lu_object_fid(&dto->do_lu),
+ &mdtidx, &type);
+ if (rc)
+ RETURN(rc);
+
+ lmv->lmv_master_mdt_index = cpu_to_le32(mdtidx);
+ rc = lod_sub_xattr_set(env, dto, lmv_buf,
+ XATTR_NAME_LMV,
+ LU_XATTR_REPLACE, th);
+ if (rc)
+ RETURN(rc);
+
+ continue;
+ }
+
+ dt_write_lock(env, dto, DT_TGT_CHILD);
+ rc = lod_sub_ref_del(env, dto, th);
+ dt_write_unlock(env, dto);
+ if (rc)
+ RETURN(rc);
+
+ rc = lod_sub_destroy(env, dto, th);
+ if (rc)
+ RETURN(rc);
+
+ snprintf(stripe_name, sizeof(info->lti_key), DFID":%d",
+ PFID(lu_object_fid(&dto->do_lu)), i);
+
+ rc = lod_sub_delete(env, next,
+ (const struct dt_key *)stripe_name, th);
+ if (rc)
+ RETURN(rc);
+
+ rc = lod_sub_ref_del(env, next, th);
+ if (rc)
+ RETURN(rc);
+ }
+
+ rc = lod_fld_lookup(env, lod, lu_object_fid(&dt->do_lu), &mdtidx,
+ &type);
+ if (rc)
+ RETURN(rc);
+
+ lmv->lmv_magic = cpu_to_le32(LMV_MAGIC_V1);
+ lmv->lmv_master_mdt_index = cpu_to_le32(mdtidx);
+ rc = lod_sub_xattr_set(env, next, lmv_buf, XATTR_NAME_LMV,
+ LU_XATTR_REPLACE, th);
+ if (rc)
+ RETURN(rc);
+
+ for (i = final_stripe_count; i < lo->ldo_dir_stripe_count; i++) {
+ dto = lo->ldo_stripe[i];
+ if (dto)
+ dt_object_put(env, dto);
+ }
+ lo->ldo_dir_stripe_count = final_stripe_count;
+
+ RETURN(rc);
+}
+
+static mlc_handler dir_mlc_declare_ops[MD_LAYOUT_MAX] = {
+ [MD_LAYOUT_ATTACH] = lod_dir_declare_layout_attach,
+ [MD_LAYOUT_DETACH] = lod_dir_declare_layout_detach,
+ [MD_LAYOUT_SHRINK] = lod_dir_declare_layout_shrink,
+ [MD_LAYOUT_SPLIT] = lod_dir_declare_layout_split,
+};
+
+static mlc_handler dir_mlc_ops[MD_LAYOUT_MAX] = {
+ [MD_LAYOUT_DETACH] = lod_dir_layout_detach,
+ [MD_LAYOUT_SHRINK] = lod_dir_layout_shrink,
+};
+
+static int lod_declare_layout_change(const struct lu_env *env,
+ struct dt_object *dt, struct md_layout_change *mlc,
+ struct thandle *th)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_object *lo = lod_dt_obj(dt);
+ int rc;
+
+ ENTRY;
+
+ if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
+ LASSERT(dir_mlc_declare_ops[mlc->mlc_opc]);
+ rc = dir_mlc_declare_ops[mlc->mlc_opc](env, dt, mlc, th);
+ RETURN(rc);
+ }
+
+ if (!S_ISREG(dt->do_lu.lo_header->loh_attr) || !dt_object_exists(dt) ||
+ dt_object_remote(dt_object_child(dt)))
+ RETURN(-EINVAL);
+
+ rc = lod_striping_load(env, lo);
if (rc)
GOTO(out, rc);
struct lod_object *lo = lod_dt_obj(dt);
int rc;
+ ENTRY;
+
+ if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
+ LASSERT(dir_mlc_ops[mlc->mlc_opc]);
+ rc = dir_mlc_ops[mlc->mlc_opc](env, dt, mlc, th);
+ RETURN(rc);
+ }
+
rc = lod_striped_create(env, dt, attr, NULL, th);
if (!rc && layout_attr->la_valid & LA_LAYOUT_VERSION) {
layout_attr->la_layout_version |= lo->ldo_layout_gen;
rc = lod_attr_set(env, dt, layout_attr, th);
}
- return rc;
+ RETURN(rc);
}
-struct dt_object_operations lod_obj_ops = {
+const struct dt_object_operations lod_obj_ops = {
.do_read_lock = lod_read_lock,
.do_write_lock = lod_write_lock,
.do_read_unlock = lod_read_unlock,
* body_ops themselves will check file type inside, see lod_read/write/punch for
* details.
*/
-const struct dt_body_operations lod_body_ops = {
+static const struct dt_body_operations lod_body_ops = {
.dbo_read = lod_read,
.dbo_declare_write = lod_declare_write,
.dbo_write = lod_write,
if (ltd != NULL) {
if (ltd->ltd_tgts_size > idx &&
- cfs_bitmap_check(ltd->ltd_tgt_bitmap, idx)) {
+ test_bit(idx, ltd->ltd_tgt_bitmap)) {
tgt = LTD_TGT(ltd, idx);
LASSERT(tgt != NULL);
lu_object_put(env,
&lod_comp->llc_stripe[j]->do_lu);
}
- OBD_FREE(lod_comp->llc_stripe,
- sizeof(struct dt_object *) *
- lod_comp->llc_stripes_allocated);
+ OBD_FREE_PTR_ARRAY(lod_comp->llc_stripe,
+ lod_comp->llc_stripes_allocated);
lod_comp->llc_stripe = NULL;
- OBD_FREE(lod_comp->llc_ost_indices,
- sizeof(__u32) *
- lod_comp->llc_stripes_allocated);
+ OBD_FREE_PTR_ARRAY(lod_comp->llc_ost_indices,
+ lod_comp->llc_stripes_allocated);
lod_comp->llc_ost_indices = NULL;
lod_comp->llc_stripes_allocated = 0;
}
/* release all underlying object pinned */
lod_striping_free(env, lo);
lu_object_fini(o);
+ /* lo doesn't contain a lu_object_header, so we don't need call_rcu */
OBD_SLAB_FREE_PTR(lo, lod_object_kmem);
}
return (*p)(env, cookie, LUSTRE_LOD_NAME"-object@%p", o);
}
-struct lu_object_operations lod_lu_obj_ops = {
+const struct lu_object_operations lod_lu_obj_ops = {
.loo_object_init = lod_object_init,
.loo_object_free = lod_object_free,
.loo_object_release = lod_object_release,
git://git.whamcloud.com / fs / lustre-release.git / blobdiff