};
/**
+ * 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
}
static struct dt_index_operations lod_striped_index_ops = {
- .dio_lookup = lod_lookup,
+ .dio_lookup = lod_striped_lookup,
.dio_declare_insert = lod_declare_insert,
.dio_insert = lod_insert,
.dio_declare_delete = lod_declare_delete,
goto next;
}
- len = snprintf(name, sizeof(name),
- DFID":", PFID(&ent->lde_fid));
+ len = scnprintf(name, sizeof(name),
+ DFID":", PFID(&ent->lde_fid));
/* The ent->lde_name is composed of ${FID}:${index} */
if (ent->lde_namelen < len + 1 ||
memcmp(ent->lde_name, name, len) != 0) {
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 {
+ /* check stripe size is multiplier of comp_end */
+ if (comp_end != LUSTRE_EOF &&
+ 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);
+ dump_stack();
+ 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,
RETURN(rc = rc > 0 ? -EINVAL : rc);
if (buf->lb_buf == NULL || buf->lb_len == 0) {
- CLASSERT(sizeof(*lmv1) <= sizeof(info->lti_key));
+ BUILD_BUG_ON(sizeof(*lmv1) > sizeof(info->lti_key));
/* lti_buf is large enough for *lmv1 or a short
* (<= sizeof(struct lmv_mds_md_v1)) foreign LMV
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))
if (is_root && strcmp(XATTR_NAME_LOV, name) == 0) {
struct lov_user_md *lum = buf->lb_buf;
- struct lov_desc *desc = &dev->lod_desc;
+ struct lov_desc *desc = &dev->lod_ost_descs.ltd_lov_desc;
if (buf->lb_buf == NULL) {
rc = sizeof(*lum);
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),
RETURN(rc);
}
-static int lod_prep_md_striped_create(const struct lu_env *env,
- struct dt_object *dt,
- struct lu_attr *attr,
- const struct lmv_user_md_v1 *lum,
- struct dt_object_format *dof,
- struct thandle *th)
+/**
+ * Allocate a striping on a predefined set of MDTs.
+ *
+ * Allocates new striping using the MDT index range provided by the data from
+ * the lum_obejcts contained in the lmv_user_md passed to this method if
+ * \a is_specific is true; or allocates new layout starting from MDT index in
+ * lo->ldo_dir_stripe_offset. The exact order of MDTs is not important and
+ * varies depending on MDT status. The number of stripes needed and stripe
+ * offset are taken from the object. If that number cannot be met, then the
+ * function returns an error and then it's the caller's responsibility to
+ * release the stripes allocated. All the internal structures are protected,
+ * but no concurrent allocation is allowed on the same objects.
+ *
+ * \param[in] env execution environment for this thread
+ * \param[in] lo LOD object
+ * \param[out] stripes striping created
+ * \param[out] mdt_indices MDT indices of striping created
+ * \param[in] is_specific true if the MDTs are provided by lum; false if
+ * only the starting MDT index is provided
+ *
+ * \retval positive stripes allocated, including the first stripe allocated
+ * outside
+ * \retval negative errno on failure
+ */
+static int lod_mdt_alloc_specific(const struct lu_env *env,
+ struct lod_object *lo,
+ 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(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 **stripe;
- __u32 stripe_count;
- int *idx_array;
- __u32 master_index;
- int rc = 0;
- __u32 i;
- __u32 j;
- bool is_specific = false;
- ENTRY;
-
- /* The lum has been verifed in lod_verify_md_striping */
- LASSERT(le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC ||
- le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC_SPECIFIC);
-
- stripe_count = lo->ldo_dir_stripe_count;
-
- OBD_ALLOC(idx_array, sizeof(idx_array[0]) * stripe_count);
- if (idx_array == NULL)
- RETURN(-ENOMEM);
-
- OBD_ALLOC(stripe, sizeof(stripe[0]) * stripe_count);
- if (stripe == NULL)
- GOTO(out_free, rc = -ENOMEM);
+ 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;
+ struct lu_object_conf conf = { .loc_flags = LOC_F_NEW };
+ struct dt_device *tgt_dt = NULL;
+ struct lu_fid fid = { 0 };
+ struct dt_object *dto;
+ u32 master_index;
+ u32 stripe_count = lo->ldo_dir_stripe_count;
+ int stripe_idx = 1;
+ int j;
+ int idx;
+ int rc;
- /* Start index must be the master MDT */
master_index = lu_site2seq(lod2lu_dev(lod)->ld_site)->ss_node_id;
- idx_array[0] = master_index;
- if (le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC_SPECIFIC) {
- is_specific = true;
- for (i = 1; i < stripe_count; i++)
- idx_array[i] = le32_to_cpu(lum->lum_objects[i].lum_mds);
- }
-
- for (i = 0; i < stripe_count; i++) {
- struct lod_tgt_desc *tgt = NULL;
- struct dt_object *dto;
- struct lu_fid fid = { 0 };
- int idx;
- struct lu_object_conf conf = { 0 };
- struct dt_device *tgt_dt = NULL;
+ if (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);
+ for (; stripe_idx < stripe_count; stripe_idx++) {
/* Try to find next avaible target */
- idx = idx_array[i];
+ idx = mdt_indices[stripe_idx];
for (j = 0; j < lod->lod_remote_mdt_count;
j++, idx = (idx + 1) % (lod->lod_remote_mdt_count + 1)) {
bool already_allocated = false;
__u32 k;
CDEBUG(D_INFO, "try idx %d, mdt cnt %u, allocated %u\n",
- idx, lod->lod_remote_mdt_count + 1, i);
+ idx, lod->lod_remote_mdt_count + 1, stripe_idx);
if (likely(!is_specific &&
!OBD_FAIL_CHECK(OBD_FAIL_LARGE_STRIPE))) {
/* check whether the idx already exists
* in current allocated array */
- for (k = 0; k < i; k++) {
- if (idx_array[k] == idx) {
+ for (k = 0; k < stripe_idx; k++) {
+ if (mdt_indices[k] == idx) {
already_allocated = true;
break;
}
if (idx == master_index) {
/* Allocate the FID locally */
- rc = obd_fid_alloc(env, lod->lod_child_exp,
- &fid, NULL);
- if (rc < 0)
- GOTO(out_put, rc);
tgt_dt = lod->lod_child;
+ rc = dt_fid_alloc(env, tgt_dt, &fid, NULL,
+ NULL);
+ if (rc < 0)
+ continue;
break;
}
/* check the status of the OSP */
tgt = LTD_TGT(ltd, idx);
- if (tgt == NULL)
+ if (!tgt)
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 */
- rc = 0;
continue;
- }
- rc = obd_fid_alloc(env, tgt->ltd_exp, &fid, NULL);
- if (rc < 0) {
- rc = 0;
+ rc = dt_fid_alloc(env, tgt_dt, &fid, NULL, NULL);
+ if (rc < 0)
continue;
- }
break;
}
/* Can not allocate more stripes */
if (j == lod->lod_remote_mdt_count) {
CDEBUG(D_INFO, "%s: require stripes %u only get %d\n",
- lod2obd(lod)->obd_name, stripe_count, i);
+ lod2obd(lod)->obd_name, stripe_count,
+ stripe_idx);
break;
}
CDEBUG(D_INFO, "Get idx %d, for stripe %d "DFID"\n",
- idx, i, PFID(&fid));
- idx_array[i] = idx;
+ idx, stripe_idx, PFID(&fid));
+ mdt_indices[stripe_idx] = idx;
/* Set the start index for next stripe allocation */
- if (!is_specific && i < stripe_count - 1) {
+ if (!is_specific && stripe_idx < stripe_count - 1) {
/*
* for large dir test, put all other slaves on one
* remote MDT, otherwise we may save too many local
*/
if (unlikely(OBD_FAIL_CHECK(OBD_FAIL_LARGE_STRIPE)))
idx = master_index;
- idx_array[i + 1] = (idx + 1) %
+ mdt_indices[stripe_idx + 1] = (idx + 1) %
(lod->lod_remote_mdt_count + 1);
}
/* tgt_dt and fid must be ready after search avaible OSP
LASSERT(fid_is_sane(&fid));
/* fail a remote stripe FID allocation */
- if (i && OBD_FAIL_CHECK(OBD_FAIL_MDS_STRIPE_FID))
+ if (stripe_idx && OBD_FAIL_CHECK(OBD_FAIL_MDS_STRIPE_FID))
continue;
- conf.loc_flags = LOC_F_NEW;
dto = dt_locate_at(env, tgt_dt, &fid,
- dt->do_lu.lo_dev->ld_site->ls_top_dev,
- &conf);
- if (IS_ERR(dto))
- GOTO(out_put, rc = PTR_ERR(dto));
- stripe[i] = dto;
+ lo->ldo_obj.do_lu.lo_dev->ld_site->ls_top_dev,
+ &conf);
+ if (IS_ERR(dto)) {
+ rc = PTR_ERR(dto);
+ goto error;
+ }
+
+ stripes[stripe_idx] = dto;
+ }
+
+ return stripe_idx;
+
+error:
+ for (j = 1; j < stripe_idx; j++) {
+ LASSERT(stripes[j] != NULL);
+ dt_object_put(env, stripes[j]);
+ stripes[j] = NULL;
+ }
+ return rc;
+}
+
+static int lod_prep_md_striped_create(const struct lu_env *env,
+ struct dt_object *dt,
+ struct lu_attr *attr,
+ const struct lmv_user_md_v1 *lum,
+ struct dt_object_format *dof,
+ struct thandle *th)
+{
+ struct lod_device *lod = lu2lod_dev(dt->do_lu.lo_dev);
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object **stripes;
+ struct lu_object_conf conf = { .loc_flags = LOC_F_NEW };
+ struct lu_fid fid = { 0 };
+ __u32 stripe_count;
+ int i;
+ int rc = 0;
+
+ ENTRY;
+
+ /* The lum has been verifed in lod_verify_md_striping */
+ LASSERT(le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC ||
+ le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC_SPECIFIC);
+
+ stripe_count = lo->ldo_dir_stripe_count;
+
+ OBD_ALLOC_PTR_ARRAY(stripes, stripe_count);
+ if (!stripes)
+ RETURN(-ENOMEM);
+
+ /* Allocate the first stripe locally */
+ rc = dt_fid_alloc(env, lod->lod_child, &fid, NULL, NULL);
+ if (rc < 0)
+ GOTO(out, rc);
+
+ stripes[0] = dt_locate_at(env, lod->lod_child, &fid,
+ dt->do_lu.lo_dev->ld_site->ls_top_dev, &conf);
+ if (IS_ERR(stripes[0]))
+ GOTO(out, rc = PTR_ERR(stripes[0]));
+
+ 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, 1, stripe_count);
+ if (rc == -EAGAIN)
+ rc = lod_mdt_alloc_rr(env, lo, stripes, 1,
+ stripe_count);
+ } else {
+ int *idx_array;
+ bool is_specific = false;
+
+ OBD_ALLOC_PTR_ARRAY(idx_array, stripe_count);
+ if (!idx_array)
+ GOTO(out, rc = -ENOMEM);
+
+ if (le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC_SPECIFIC) {
+ is_specific = true;
+ for (i = 0; i < stripe_count; i++)
+ idx_array[i] =
+ le32_to_cpu(lum->lum_objects[i].lum_mds);
+ }
+
+ /* stripe 0 is local */
+ idx_array[0] =
+ lu_site2seq(lod2lu_dev(lod)->ld_site)->ss_node_id;
+ rc = lod_mdt_alloc_specific(env, lo, stripes, idx_array,
+ is_specific);
+ OBD_FREE_PTR_ARRAY(idx_array, stripe_count);
}
+ if (rc < 0)
+ GOTO(out, rc);
+
+ LASSERT(rc > 0);
+
lo->ldo_dir_striped = 1;
- lo->ldo_stripe = stripe;
- lo->ldo_dir_stripe_count = i;
+ lo->ldo_stripe = stripes;
+ lo->ldo_dir_stripe_count = rc;
lo->ldo_dir_stripes_allocated = stripe_count;
smp_mb();
lo->ldo_dir_stripe_loaded = 1;
- if (lo->ldo_dir_stripe_count == 0)
- GOTO(out_put, rc = -ENOSPC);
-
rc = lod_dir_declare_create_stripes(env, dt, attr, dof, th);
- if (rc != 0)
- GOTO(out_put, rc);
+ if (rc < 0)
+ lod_striping_free(env, lo);
-out_put:
- if (rc < 0) {
- for (i = 0; i < stripe_count; i++)
- if (stripe[i] != NULL)
- dt_object_put(env, stripe[i]);
- OBD_FREE(stripe, sizeof(stripe[0]) * stripe_count);
- lo->ldo_dir_stripe_count = 0;
- lo->ldo_dir_stripes_allocated = 0;
- lo->ldo_stripe = NULL;
- }
+ RETURN(rc);
-out_free:
- OBD_FREE(idx_array, sizeof(idx_array[0]) * stripe_count);
+out:
+ LASSERT(rc < 0);
+ if (!IS_ERR_OR_NULL(stripes[0]))
+ dt_object_put(env, stripes[0]);
+ for (i = 1; i < stripe_count; i++)
+ LASSERT(!stripes[i]);
+ OBD_FREE_PTR_ARRAY(stripes, stripe_count);
- RETURN(rc);
+ 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)
- RETURN(-ENOMEM);
+ rc = lod_sub_xattr_set(env, next, buf, XATTR_NAME_LMV, fl, th);
+ if (rc)
+ RETURN(rc);
- for (i = 0; i < lo->ldo_dir_stripe_count; i++)
- stripe[i] = lo->ldo_stripe[i];
+ /* directory restripe may update stripe LMV directly */
+ if (!lo->ldo_dir_stripe_count)
+ RETURN(0);
- for (i = 0; i < stripe_count; i++) {
- fid_le_to_cpu(fid,
- &lmv->lmv_stripe_fids[i]);
- if (!fid_is_sane(fid))
- continue;
+ 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);
- 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));
-
- stripe[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);
-
- 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, 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;
+ OBD_ALLOC_PTR(slave_lmv);
+ if (!slave_lmv)
+ RETURN(-ENOMEM);
- final_stripe_count = le32_to_cpu(lmu->lum_stripe_count);
- if (final_stripe_count >= lo->ldo_dir_stripe_count)
- return -EINVAL;
+ lod_prep_slave_lmv_md(slave_lmv, lmv);
+ slave_buf.lb_buf = slave_lmv;
+ slave_buf.lb_len = sizeof(*slave_lmv);
- for (i = final_stripe_count; i < lo->ldo_dir_stripe_count; i++) {
- dto = lo->ldo_stripe[i];
- if (!dto)
+ for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
+ if (!lo->ldo_stripe[i])
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)
+ if (!dt_object_exists(lo->ldo_stripe[i]))
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);
+ rc = lod_sub_xattr_set(env, lo->ldo_stripe[i], &slave_buf,
+ XATTR_NAME_LMV, fl, th);
if (rc)
break;
}
- lod_striping_free(env, lod_dt_obj(dt));
+ OBD_FREE_PTR(slave_lmv);
RETURN(rc);
}
if (rc != 0)
RETURN(rc);
} else if (strcmp(name, XATTR_NAME_LOV) == 0) {
- rc = lod_verify_striping(d, lo, buf, false);
+ rc = lod_verify_striping(env, d, lo, buf, false);
if (rc != 0)
RETURN(rc);
}
else if (lod_comp_inited(entry))
return entry->llc_stripe_count;
else if ((__u16)-1 == entry->llc_stripe_count)
- return lod->lod_desc.ld_tgt_count;
+ return lod->lod_ost_count;
else
return lod_get_stripe_count(lod, lo,
entry->llc_stripe_count, false);
{
struct lod_thread_info *info = lod_env_info(env);
struct lod_layout_component *comp_array, *lod_comp, *old_array;
- struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
+ struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
struct dt_object *next = dt_object_child(dt);
- struct lov_desc *desc = &d->lod_desc;
- struct lod_object *lo = lod_dt_obj(dt);
- struct lov_user_md_v3 *v3;
- struct lov_comp_md_v1 *comp_v1 = buf->lb_buf;
- __u32 magic;
- int i, rc, array_cnt, old_array_cnt;
+ struct lov_desc *desc = &d->lod_ost_descs.ltd_lov_desc;
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct lov_user_md_v3 *v3;
+ struct lov_comp_md_v1 *comp_v1 = buf->lb_buf;
+ __u32 magic;
+ int i, rc, array_cnt, old_array_cnt;
ENTRY;
LASSERT(lo->ldo_is_composite);
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);
RETURN(-EINVAL);
array_cnt = lo->ldo_comp_cnt + comp_v1->lcm_entry_count;
- OBD_ALLOC(comp_array, sizeof(*comp_array) * array_cnt);
+ OBD_ALLOC_PTR_ARRAY(comp_array, array_cnt);
if (comp_array == NULL)
RETURN(-ENOMEM);
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;
lod_comp->llc_pool = NULL;
}
}
- OBD_FREE(comp_array, sizeof(*comp_array) * array_cnt);
+ OBD_FREE_PTR_ARRAY(comp_array, array_cnt);
RETURN(rc);
}
* the '$field' can only be 'flags' now. The xattr value is binary
* lov_comp_md_v1 which contains the component ID(s) and the value of
* the field to be modified.
+ * Please update allowed_lustre_lov macro if $field groks more values
+ * in the future.
*
* \param[in] env execution environment
* \param[in] dt dt_object to be modified
bool changed = false;
ENTRY;
+ /* Please update allowed_lustre_lov macro if op
+ * groks more values in the future
+ */
if (strcmp(op, "set.flags") != 0) {
CDEBUG(D_LAYOUT, "%s: operation (%s) not supported.\n",
lod2obd(d)->obd_name, op);
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;
strcmp(name, XATTR_LUSTRE_LOV) == 0);
rc = lod_declare_layout_split(env, dt, buf, th);
} else if (S_ISREG(mode) &&
- strlen(name) > strlen(XATTR_LUSTRE_LOV) + 1 &&
- strncmp(name, XATTR_LUSTRE_LOV,
- strlen(XATTR_LUSTRE_LOV)) == 0) {
+ strlen(name) >= sizeof(XATTR_LUSTRE_LOV) + 3 &&
+ allowed_lustre_lov(name)) {
/*
* this is a request to modify object's striping.
* add/set/del component(s).
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) + 1) {
- const char *op = name + strlen(XATTR_NAME_LMV) + 1;
-
- 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) {
if (LMVEA_DELETE_VALUES((le32_to_cpu(lum->lum_stripe_count)),
le32_to_cpu(lum->lum_stripe_offset)) &&
- le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC &&
- !(le32_to_cpu(lum->lum_hash_type) & LMV_HASH_FLAG_SPACE)) {
+ le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC) {
rc = lod_xattr_del_internal(env, dt, name, th);
if (rc == -ENODATA)
rc = 0;
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",
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_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(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;
}
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 {
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) + 1) {
- const char *op = name + strlen(XATTR_NAME_LMV) + 1;
-
- 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) &&
- strcmp(name, XATTR_NAME_LOV) == 0) {
+ strcmp(name, XATTR_NAME_LOV) == 0) {
struct lod_default_striping *lds = lod_lds_buf_get(env);
struct lov_user_md_v1 *v1 = buf->lb_buf;
char pool[LOV_MAXPOOLNAME + 1];
th);
RETURN(rc);
} else if (S_ISREG(dt->do_lu.lo_header->loh_attr) &&
- (!strcmp(name, XATTR_NAME_LOV) ||
- !strncmp(name, XATTR_LUSTRE_LOV,
- strlen(XATTR_LUSTRE_LOV)))) {
+ (strcmp(name, XATTR_NAME_LOV) == 0 ||
+ strcmp(name, XATTR_LUSTRE_LOV) == 0 ||
+ allowed_lustre_lov(name))) {
/* in case of lov EA swap, just set it
* if not, it is a replay so check striping match what we
* already have during req replay, declare_xattr_set()
umode_t mode)
{
struct lod_device *d = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
- struct lov_desc *desc = &d->lod_desc;
int i, rc;
if (lds->lds_def_striping_set && S_ISREG(mode)) {
+ struct lov_desc *desc = &d->lod_ost_descs.ltd_lov_desc;
+
rc = lod_alloc_comp_entries(lo, lds->lds_def_mirror_cnt,
lds->lds_def_comp_cnt);
if (rc != 0)
lo->ldo_dir_stripe_offset =
lds->lds_dir_def_stripe_offset;
if (lo->ldo_dir_hash_type == 0)
- lo->ldo_dir_hash_type = lds->lds_dir_def_hash_type &
- ~LMV_HASH_FLAG_SPACE;
+ lo->ldo_dir_hash_type = lds->lds_dir_def_hash_type;
CDEBUG(D_LAYOUT, "striping from default dir: count:%hu, "
"offset:%u, hash_type:%u\n",
LASSERT(child);
if (ah->dah_append_stripes == -1)
- ah->dah_append_stripes = d->lod_desc.ld_tgt_count;
+ ah->dah_append_stripes =
+ d->lod_ost_descs.ltd_lov_desc.ld_tgt_count;
if (likely(parent)) {
nextp = dt_object_child(parent);
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);
}
LASSERT(!lc->ldo_is_composite);
lod_comp = &lc->ldo_comp_entries[0];
- desc = &d->lod_desc;
+ desc = &d->lod_ost_descs.ltd_lov_desc;
lod_adjust_stripe_info(lod_comp, desc, ah->dah_append_stripes);
if (ah->dah_append_pool && ah->dah_append_pool[0])
lod_obj_set_pool(lc, 0, ah->dah_append_pool);
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;
return -EINVAL;
lmu = info->lti_ea_store;
- return !!(le32_to_cpu(lmu->lum_hash_type) & LMV_HASH_FLAG_SPACE);
+ return le32_to_cpu(lmu->lum_stripe_offset) == LMV_OFFSET_DEFAULT;
}
/**
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_STALE_DIR_LAYOUT))
GOTO(out, rc = -EREMOTE);
- if (lo->ldo_dir_stripe_offset == -1) {
+ if (lo->ldo_dir_stripe_offset == LMV_OFFSET_DEFAULT) {
+ struct lod_default_striping *lds;
+
+ lds = lo->ldo_def_striping;
/*
- * child and parent should be in the same MDT,
- * but if parent has plain layout, it's allowed.
+ * child and parent should be on the same MDT,
+ * but if parent has default LMV, and the start
+ * MDT offset is -1, it's allowed. This check
+ * is not necessary after 2.12.22 because client
+ * follows this already, but old client may not.
*/
if (hint->dah_parent &&
- dt_object_remote(hint->dah_parent)) {
- rc = dt_object_qos_mkdir(env,
- lo->ldo_obj.do_lu.lo_dev,
- hint->dah_parent);
- if (rc <= 0)
- GOTO(out, rc ? rc : -EREMOTE);
- }
+ dt_object_remote(hint->dah_parent) && lds &&
+ lds->lds_dir_def_stripe_offset !=
+ LMV_OFFSET_DEFAULT)
+ GOTO(out, rc = -EREMOTE);
} else if (lo->ldo_dir_stripe_offset !=
ss->ss_node_id) {
struct lod_device *lod;
- struct lod_tgt_descs *ltd;
- struct lod_tgt_desc *tgt = NULL;
+ struct lu_tgt_desc *mdt = NULL;
bool found_mdt = false;
lod = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
- ltd = &lod->lod_mdt_descs;
- ltd_foreach_tgt(ltd, tgt) {
- if (tgt->ltd_index ==
+ lod_foreach_mdt(lod, mdt) {
+ if (mdt->ltd_index ==
lo->ldo_dir_stripe_offset) {
found_mdt = true;
break;
break;
}
- rc = dt_statfs_info(env, ost->ltd_ost, sfs, &info);
+ rc = dt_statfs_info(env, ost->ltd_tgt, sfs, &info);
if (rc) {
CDEBUG(D_LAYOUT, "statfs failed for ost %d, error %d\n",
index, rc);
* This algo can be revised later after knowing the topology of
* cluster.
*/
- lod_qos_statfs_update(env, lod);
+ lod_qos_statfs_update(env, lod, &lod->lod_ost_descs);
for (i = 0; i < lo->ldo_mirror_count; i++) {
bool ost_avail = true;
int index = (i + seq) % lo->ldo_mirror_count;
if (lo->ldo_mirrors[i].lme_stale)
continue;
- LASSERTF(primary < 0, DFID " has multiple primary: %u / %u",
+ LASSERTF(primary < 0, DFID " has multiple primary: %u / %u\n",
PFID(lod_object_fid(lo)),
lo->ldo_mirrors[i].lme_id,
lo->ldo_mirrors[primary].lme_id);
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)
+typedef int (*mlc_handler)(const struct lu_env *env, struct dt_object *dt,
+ const struct md_layout_change *mlc,
+ struct thandle *th);
+
+/**
+ * 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_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);
- 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);
-
+ 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;
+
+ 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 = {
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);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff