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,
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) {
- 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)
+ struct lov_desc *desc,
+ int append_stripes)
{
if (comp->llc_pattern != LOV_PATTERN_MDT) {
- if (!comp->llc_stripe_count)
+ if (append_stripes) {
+ comp->llc_stripe_count = append_stripes;
+ } else if (!comp->llc_stripe_count) {
comp->llc_stripe_count =
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,
}
break;
}
+ case LCM_FL_RDONLY:
+ case LCM_FL_SYNC_PENDING:
+ break;
default:
LASSERTF(0, "impossible: %d\n", lo->ldo_flr_state);
- case LCM_FL_SYNC_PENDING:
break;
}
buf->lb_len = info->lti_ea_store_size;
lmm = info->lti_ea_store;
magic = le32_to_cpu(lmm->lmm_magic);
- if (magic == LOV_MAGIC_COMP_V1) {
+ if (magic == LOV_MAGIC_COMP_V1 || magic == LOV_MAGIC_SEL) {
struct lov_comp_md_v1 *lcm = buf->lb_buf;
struct lov_comp_md_entry_v1 *lcme =
&lcm->lcm_entries[0];
buf->lb_buf = info->lti_ea_store;
buf->lb_len = info->lti_ea_store_size;
lcm = buf->lb_buf;
- if (le32_to_cpu(lcm->lcm_magic) != LOV_MAGIC_COMP_V1)
+ if (le32_to_cpu(lcm->lcm_magic) != LOV_MAGIC_COMP_V1 &&
+ le32_to_cpu(lcm->lcm_magic) != LOV_MAGIC_SEL)
RETURN(-EINVAL);
le32_add_cpu(&lcm->lcm_layout_gen, 1);
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))
RETURN(rc = rc1 != 0 ? rc1 : rc);
}
+ if ((rc > 0) && buf->lb_buf && strcmp(name, XATTR_NAME_LOV) == 0) {
+ struct lov_comp_md_v1 *lcm = buf->lb_buf;
+
+ if (lcm->lcm_magic == cpu_to_le32(LOV_MAGIC_SEL))
+ lcm->lcm_magic = cpu_to_le32(LOV_MAGIC_COMP_V1);
+ }
+
if (rc != -ENODATA || !S_ISDIR(dt->do_lu.lo_header->loh_attr & S_IFMT))
RETURN(rc);
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 (!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);
+ 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;
}
/* 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);
- 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)
- RETURN(-EINVAL);
-
- if (stripe_count == 0)
+ if (!lmv_is_sane2(lmv))
RETURN(-EINVAL);
- dof->dof_type = DFT_DIR;
-
- OBD_ALLOC(stripe,
- sizeof(*stripe) * (lo->ldo_dir_stripe_count + stripe_count));
- if (stripe == NULL)
- RETURN(-ENOMEM);
-
- for (i = 0; i < lo->ldo_dir_stripe_count; i++)
- stripe[i] = lo->ldo_stripe[i];
-
- 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));
-
- 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);
- }
+ /* adjust hash for dir merge, which may not be set in user command */
+ if (lmv_is_merging(lmv) &&
+ !(lmv->lmv_migrate_hash & LMV_HASH_TYPE_MASK))
+ lmv->lmv_merge_hash |=
+ lod->lod_mdt_descs.ltd_lmv_desc.ld_pattern &
+ LMV_HASH_TYPE_MASK;
- 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;
+ LMV_DEBUG(D_INFO, lmv, "set");
- 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++]);
+ rc = lod_sub_xattr_set(env, next, buf, XATTR_NAME_LMV, fl, th);
+ if (rc)
+ RETURN(rc);
- OBD_FREE(stripe,
- sizeof(*stripe) * (stripe_count + lo->ldo_dir_stripe_count));
- RETURN(rc);
-}
+ /* directory restripe may update stripe LMV directly */
+ if (!lo->ldo_dir_stripe_count)
+ RETURN(0);
-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;
+ 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);
- 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);
}
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_desc.ld_tgt_count;
+ return lod->lod_ost_count;
else
- return lod_get_stripe_count(lod, lo,
- entry->llc_stripe_count, false);
+ return lod_get_stripe_count(lod, lo, comp_idx,
+ entry->llc_stripe_count,
+ entry->llc_pattern &
+ LOV_PATTERN_OVERSTRIPING);
}
static int lod_comp_md_size(struct lod_object *lo, bool is_dir)
__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);
{
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);
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);
lod_comp->llc_stripe_count = v1->lmm_stripe_count;
lod_comp->llc_stripe_size = v1->lmm_stripe_size;
- lod_adjust_stripe_info(lod_comp, desc);
+ lod_adjust_stripe_info(lod_comp, desc, 0);
if (v1->lmm_magic == LOV_USER_MAGIC_V3) {
v3 = (struct lov_user_md_v3 *) v1;
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);
}
/**
+ * lod_last_non_stale_mirror() - Check if a mirror is the last non-stale mirror.
+ * @mirror_id: Mirror id to be checked.
+ * @lo: LOD object.
+ *
+ * This function checks if a mirror with specified @mirror_id is the last
+ * non-stale mirror of a LOD object @lo.
+ *
+ * Return: true or false.
+ */
+static inline
+bool lod_last_non_stale_mirror(__u16 mirror_id, struct lod_object *lo)
+{
+ struct lod_layout_component *lod_comp;
+ bool has_stale_flag;
+ int i;
+
+ for (i = 0; i < lo->ldo_mirror_count; i++) {
+ if (lo->ldo_mirrors[i].lme_id == mirror_id ||
+ lo->ldo_mirrors[i].lme_stale)
+ continue;
+
+ has_stale_flag = false;
+ lod_foreach_mirror_comp(lod_comp, lo, i) {
+ if (lod_comp->llc_flags & LCME_FL_STALE) {
+ has_stale_flag = true;
+ break;
+ }
+ }
+ if (!has_stale_flag)
+ return false;
+ }
+
+ return true;
+}
+
+/**
* Declare component set. The xattr is name XATTR_LUSTRE_LOV.set.$field,
* the '$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);
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;
__u32 mirror_flag = flags & LCME_MIRROR_FLAGS;
+ __u16 mirror_id = mirror_id_of(id);
bool neg = flags & LCME_FL_NEG;
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);
}
/* lfs only put one flag in each entry */
if ((flags && id != lod_comp->llc_id) ||
- (mirror_flag && mirror_id_of(id) !=
+ (mirror_flag && mirror_id !=
mirror_id_of(lod_comp->llc_id)))
continue;
if (mirror_flag)
lod_comp->llc_flags &= ~mirror_flag;
} else {
- if (flags)
+ if (flags) {
+ if ((flags & LCME_FL_STALE) &&
+ lod_last_non_stale_mirror(mirror_id,
+ lo)) {
+ mutex_unlock(
+ &lo->ldo_layout_mutex);
+ RETURN(-EUCLEAN);
+ }
lod_comp->llc_flags |= flags;
+ }
if (mirror_flag) {
lod_comp->llc_flags |= mirror_flag;
if (mirror_flag & LCME_FL_NOSYNC)
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);
struct dt_object *dt, const struct lu_buf *mbuf,
struct thandle *th)
{
- struct lod_thread_info *info = lod_env_info(env);
- struct lu_buf *buf = &info->lti_buf;
- struct lod_object *lo = lod_dt_obj(dt);
- struct lov_comp_md_v1 *lcm;
- struct lov_comp_md_v1 *cur_lcm;
- struct lov_comp_md_v1 *merge_lcm;
- struct lov_comp_md_entry_v1 *lcme;
- size_t size = 0;
- size_t offset;
- __u16 cur_entry_count;
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lu_attr *layout_attr = &info->lti_layout_attr;
+ struct lu_buf *buf = &info->lti_buf;
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct lov_comp_md_v1 *lcm;
+ struct lov_comp_md_v1 *cur_lcm;
+ struct lov_comp_md_v1 *merge_lcm;
+ struct lov_comp_md_entry_v1 *lcme;
+ struct lov_mds_md_v1 *lmm;
+ size_t size = 0;
+ size_t offset;
+ __u16 cur_entry_count;
__u16 merge_entry_count;
__u32 id = 0;
__u16 mirror_id = 0;
__u32 mirror_count;
- int rc, i;
+ int rc, i;
+ bool merge_has_dom;
+
ENTRY;
merge_lcm = mbuf->lb_buf;
rc = lod_layout_convert(info);
break;
case LOV_MAGIC_COMP_V1:
+ case LOV_MAGIC_SEL:
rc = 0;
break;
default:
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;
+
+ /* check if first entry in new layout is DOM */
+ lmm = (struct lov_mds_md_v1 *)((char *)merge_lcm +
+ merge_lcm->lcm_entries[0].lcme_offset);
+ merge_has_dom = lov_pattern(le32_to_cpu(lmm->lmm_pattern)) ==
+ LOV_PATTERN_MDT;
+
for (i = 0; i < merge_entry_count; i++) {
struct lov_comp_md_entry_v1 *merge_lcme;
*lcme = *merge_lcme;
lcme->lcme_offset = cpu_to_le32(offset);
+ if (merge_has_dom && i == 0)
+ lcme->lcme_flags |= cpu_to_le32(LCME_FL_STALE);
id = pflr_id(mirror_id, i + 1);
lcme->lcme_id = cpu_to_le32(id);
}
/* fixup layout information */
- lod_obj_inc_layout_gen(lo);
- lcm->lcm_layout_gen = cpu_to_le32(lo->ldo_layout_gen);
lcm->lcm_size = cpu_to_le32(size);
lcm->lcm_entry_count = cpu_to_le16(cur_entry_count + merge_entry_count);
lcm->lcm_mirror_count = cpu_to_le16(mirror_count);
if (rc)
GOTO(out, rc);
+ lod_obj_inc_layout_gen(lo);
+ lcm->lcm_layout_gen = cpu_to_le32(lo->ldo_layout_gen);
+
+ /* transfer layout version to OST objects. */
+ if (lo->ldo_mirror_count > 1) {
+ struct lod_obj_stripe_cb_data data = { {0} };
+
+ layout_attr->la_valid = LA_LAYOUT_VERSION;
+ layout_attr->la_layout_version = 0;
+ data.locd_attr = layout_attr;
+ data.locd_declare = true;
+ data.locd_stripe_cb = lod_obj_stripe_attr_set_cb;
+ rc = lod_obj_for_each_stripe(env, lo, th, &data);
+ if (rc)
+ GOTO(out, rc);
+ }
+
rc = lod_sub_declare_xattr_set(env, dt_object_child(dt), buf,
XATTR_NAME_LOV, LU_XATTR_REPLACE, th);
struct dt_object *dt, const struct lu_buf *mbuf,
struct thandle *th)
{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lu_attr *layout_attr = &info->lti_layout_attr;
struct lod_object *lo = lod_dt_obj(dt);
struct lov_comp_md_v1 *lcm = mbuf->lb_buf;
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);
+
+
+ /* transfer layout version to OST objects. */
+ if (lo->ldo_mirror_count > 1) {
+ struct lod_obj_stripe_cb_data data = { {0} };
+
+ layout_attr->la_valid = LA_LAYOUT_VERSION;
+ layout_attr->la_layout_version = 0;
+ data.locd_attr = layout_attr;
+ data.locd_declare = true;
+ data.locd_stripe_cb = lod_obj_stripe_attr_set_cb;
+ rc = lod_obj_for_each_stripe(env, lo, th, &data);
+ if (rc)
+ RETURN(rc);
+ }
+
rc = lod_sub_declare_xattr_set(env, dt_object_child(dt), mbuf,
XATTR_NAME_LOV, LU_XATTR_REPLACE, th);
RETURN(rc);
}
+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 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;
+
+ /**
+ * 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.
*
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)) &&
+ !(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)) {
/*
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) > 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) {
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)
pool_name);
break;
case LOV_USER_MAGIC_COMP_V1:
+ {
+ struct lov_comp_md_v1 *lcm = (struct lov_comp_md_v1 *)lum;
+ struct lov_comp_md_entry_v1 *lcme;
+ int i, comp_cnt;
+
+ comp_cnt = le16_to_cpu(lcm->lcm_entry_count);
+ for (i = 0; i < comp_cnt; i++) {
+ lcme = &lcm->lcm_entries[i];
+ if (lcme->lcme_flags & cpu_to_le32(LCME_FL_EXTENSION)) {
+ lcm->lcm_magic = cpu_to_le32(LOV_MAGIC_SEL);
+ break;
+ }
+ }
+
is_del = false;
break;
+ }
default:
CERROR("Invalid magic %x\n", lum->lmm_magic);
RETURN(-EINVAL);
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_TYPE_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 (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)) {
- dt_write_lock(env, dto, MOR_TGT_CHILD);
+ /* 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) {
dt_write_unlock(env, dto);
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",
/* Transfer default LMV striping from the parent */
if (lds != NULL && lds->lds_dir_def_striping_set &&
+ lds->lds_dir_def_max_inherit != LMV_INHERIT_END &&
+ lds->lds_dir_def_max_inherit != LMV_INHERIT_NONE &&
!(LMVEA_DELETE_VALUES(lds->lds_dir_def_stripe_count,
lds->lds_dir_def_stripe_offset) &&
le32_to_cpu(lds->lds_dir_def_hash_type) !=
cpu_to_le32(lds->lds_dir_def_stripe_offset);
v1->lum_hash_type =
cpu_to_le32(lds->lds_dir_def_hash_type);
+ v1->lum_max_inherit =
+ lmv_inherit_next(lds->lds_dir_def_max_inherit);
+ v1->lum_max_inherit_rr =
+ lmv_inherit_rr_next(lds->lds_dir_def_max_inherit_rr);
info->lti_buf.lb_buf = v1;
info->lti_buf.lb_len = sizeof(*v1);
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);
}
RETURN(rc);
}
+static __u32 lod_gen_component_id(struct lod_object *lo,
+ int mirror_id, int comp_idx);
+
/**
- * Delete layout component(s)
+ * Repeat an existing component
+ *
+ * Creates a new layout by replicating an existing component. Uses striping
+ * policy from previous component as a template for the striping for the new
+ * new component.
+ *
+ * New component starts with zero length, will be extended (or removed) before
+ * returning layout to client.
+ *
+ * NB: Reallocates layout components array (lo->ldo_comp_entries), invalidating
+ * any pre-existing pointers to components. Handle with care.
*
* \param[in] env execution environment for this thread
- * \param[in] dt object
- * \param[in] th transaction handle
+ * \param[in,out] lo object to update the layout of
+ * \param[in] index index of component to copy
*
* \retval 0 on success
- * \retval negative error number on failure
+ * \retval negative errno on error
*/
-static int lod_layout_del(const struct lu_env *env, struct dt_object *dt,
- struct thandle *th)
+static int lod_layout_repeat_comp(const struct lu_env *env,
+ struct lod_object *lo, int index)
{
- struct lod_layout_component *lod_comp;
- struct lod_object *lo = lod_dt_obj(dt);
- struct dt_object *next = dt_object_child(dt);
- struct lu_attr *attr = &lod_env_info(env)->lti_attr;
- int rc, i, j, left;
+ struct lod_layout_component *lod_comp;
+ struct lod_layout_component *new_comp = NULL;
+ struct lod_layout_component *comp_array;
+ int rc = 0, i, new_cnt = lo->ldo_comp_cnt + 1;
+ __u16 mirror_id;
+ int offset = 0;
+ ENTRY;
- LASSERT(lo->ldo_is_composite);
- LASSERT(lo->ldo_comp_cnt > 0 && lo->ldo_comp_entries != NULL);
+ lod_comp = &lo->ldo_comp_entries[index];
+ LASSERT(lod_comp_inited(lod_comp) && lod_comp->llc_id != LCME_ID_INVAL);
- left = lo->ldo_comp_cnt;
- for (i = (lo->ldo_comp_cnt - 1); i >= 0; i--) {
- lod_comp = &lo->ldo_comp_entries[i];
+ CDEBUG(D_LAYOUT, "repeating component %d\n", index);
- if (lod_comp->llc_id != LCME_ID_INVAL)
- break;
- left--;
+ OBD_ALLOC_PTR_ARRAY(comp_array, new_cnt);
+ if (comp_array == NULL)
+ GOTO(out, rc = -ENOMEM);
- lod_obj_set_pool(lo, i, NULL);
- if (lod_comp->llc_ostlist.op_array) {
- OBD_FREE(lod_comp->llc_ostlist.op_array,
- lod_comp->llc_ostlist.op_size);
- lod_comp->llc_ostlist.op_array = NULL;
- lod_comp->llc_ostlist.op_size = 0;
+ for (i = 0; i < lo->ldo_comp_cnt; i++) {
+ memcpy(&comp_array[i + offset], &lo->ldo_comp_entries[i],
+ sizeof(*comp_array));
+
+ /* Duplicate this component in to the next slot */
+ if (i == index) {
+ new_comp = &comp_array[i + 1];
+ memcpy(&comp_array[i + 1], &lo->ldo_comp_entries[i],
+ sizeof(*comp_array));
+ /* We must now skip this new component when copying */
+ offset = 1;
}
+ }
- /* Not instantiated component */
- if (lod_comp->llc_stripe == NULL)
- continue;
-
- LASSERT(lod_comp->llc_stripe_count > 0);
- for (j = 0; j < lod_comp->llc_stripe_count; j++) {
- struct dt_object *obj = lod_comp->llc_stripe[j];
+ /* Set up copied component */
+ 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_layout_gen = lod_comp->llc_stripe_offset;
+ /* This makes the repeated component zero-length, placed at the end of
+ * the preceding component */
+ new_comp->llc_extent.e_start = new_comp->llc_extent.e_end;
+ new_comp->llc_timestamp = lod_comp->llc_timestamp;
+ new_comp->llc_pool = NULL;
+
+ rc = lod_set_pool(&new_comp->llc_pool, lod_comp->llc_pool);
+ if (rc)
+ GOTO(out, rc);
- if (obj == NULL)
- continue;
- rc = lod_sub_destroy(env, obj, th);
- if (rc)
- GOTO(out, rc);
+ if (new_comp->llc_ostlist.op_array) {
+ __u32 *op_array = NULL;
- 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);
- lod_comp->llc_stripe = NULL;
- OBD_FREE(lod_comp->llc_ost_indices,
- sizeof(__u32) * lod_comp->llc_stripes_allocated);
- lod_comp->llc_ost_indices = NULL;
- lod_comp->llc_stripes_allocated = 0;
+ OBD_ALLOC(op_array, new_comp->llc_ostlist.op_size);
+ if (!op_array)
+ GOTO(out, rc = -ENOMEM);
+ memcpy(op_array, &new_comp->llc_ostlist.op_array,
+ new_comp->llc_ostlist.op_size);
+ new_comp->llc_ostlist.op_array = op_array;
}
- LASSERTF(left >= 0 && left < lo->ldo_comp_cnt, "left = %d\n", left);
- if (left > 0) {
- struct lod_layout_component *comp_array;
+ OBD_FREE_PTR_ARRAY(lo->ldo_comp_entries, lo->ldo_comp_cnt);
+ lo->ldo_comp_entries = comp_array;
+ lo->ldo_comp_cnt = new_cnt;
- OBD_ALLOC(comp_array, sizeof(*comp_array) * left);
- if (comp_array == NULL)
- GOTO(out, rc = -ENOMEM);
+ /* Generate an id for the new component */
+ mirror_id = mirror_id_of(new_comp->llc_id);
+ new_comp->llc_id = LCME_ID_INVAL;
+ new_comp->llc_id = lod_gen_component_id(lo, mirror_id, index + 1);
+ if (new_comp->llc_id == LCME_ID_INVAL)
+ GOTO(out, rc = -ERANGE);
- memcpy(&comp_array[0], &lo->ldo_comp_entries[0],
- sizeof(*comp_array) * left);
+ EXIT;
+out:
+ if (rc)
+ OBD_FREE_PTR_ARRAY(comp_array, new_cnt);
- OBD_FREE(lo->ldo_comp_entries,
- sizeof(*comp_array) * lo->ldo_comp_cnt);
- lo->ldo_comp_entries = comp_array;
- lo->ldo_comp_cnt = left;
+ return rc;
+}
- LASSERT(lo->ldo_mirror_count == 1);
- lo->ldo_mirrors[0].lme_end = left - 1;
- lod_obj_inc_layout_gen(lo);
- } else {
- lod_free_comp_entries(lo);
- }
+static int lod_layout_data_init(struct lod_thread_info *info, __u32 comp_cnt)
+{
+ ENTRY;
- LASSERT(dt_object_exists(dt));
- rc = dt_attr_get(env, next, attr);
+ /* clear memory region that will be used for layout change */
+ memset(&info->lti_layout_attr, 0, sizeof(struct lu_attr));
+ info->lti_count = 0;
+
+ if (info->lti_comp_size >= comp_cnt)
+ RETURN(0);
+
+ if (info->lti_comp_size > 0) {
+ OBD_FREE_PTR_ARRAY(info->lti_comp_idx, info->lti_comp_size);
+ info->lti_comp_size = 0;
+ }
+
+ OBD_ALLOC_PTR_ARRAY(info->lti_comp_idx, comp_cnt);
+ if (!info->lti_comp_idx)
+ RETURN(-ENOMEM);
+
+ info->lti_comp_size = comp_cnt;
+ RETURN(0);
+}
+
+/**
+ * Prepare new layout minus deleted components
+ *
+ * Removes components marked for deletion (LCME_ID_INVAL) by copying to a new
+ * layout and skipping those components. Removes stripe objects if any exist.
+ *
+ * NB:
+ * Reallocates layout components array (lo->ldo_comp_entries), invalidating
+ * any pre-existing pointers to components.
+ *
+ * Caller is responsible for updating mirror end (ldo_mirror[].lme_end).
+ *
+ * \param[in] env execution environment for this thread
+ * \param[in,out] lo object to update the layout of
+ * \param[in] th transaction handle for this operation
+ *
+ * \retval # of components deleted
+ * \retval negative errno on error
+ */
+static int lod_layout_del_prep_layout(const struct lu_env *env,
+ struct lod_object *lo,
+ struct thandle *th)
+{
+ struct lod_layout_component *lod_comp;
+ struct lod_thread_info *info = lod_env_info(env);
+ int rc = 0, i, j, deleted = 0;
+
+ ENTRY;
+
+ LASSERT(lo->ldo_is_composite);
+ LASSERT(lo->ldo_comp_cnt > 0 && lo->ldo_comp_entries != NULL);
+
+ rc = lod_layout_data_init(info, lo->ldo_comp_cnt);
+ if (rc)
+ RETURN(rc);
+
+ for (i = 0; i < lo->ldo_comp_cnt; i++) {
+ lod_comp = &lo->ldo_comp_entries[i];
+
+ if (lod_comp->llc_id != LCME_ID_INVAL) {
+ /* Build array of things to keep */
+ info->lti_comp_idx[info->lti_count++] = i;
+ continue;
+ }
+
+ lod_obj_set_pool(lo, i, NULL);
+ if (lod_comp->llc_ostlist.op_array) {
+ OBD_FREE(lod_comp->llc_ostlist.op_array,
+ lod_comp->llc_ostlist.op_size);
+ lod_comp->llc_ostlist.op_array = NULL;
+ lod_comp->llc_ostlist.op_size = 0;
+ }
+
+ deleted++;
+ CDEBUG(D_LAYOUT, "deleting comp %d, left %d\n", i,
+ lo->ldo_comp_cnt - deleted);
+
+ /* No striping info for this component */
+ if (lod_comp->llc_stripe == NULL)
+ continue;
+
+ LASSERT(lod_comp->llc_stripe_count > 0);
+ for (j = 0; j < lod_comp->llc_stripe_count; j++) {
+ struct dt_object *obj = lod_comp->llc_stripe[j];
+
+ if (obj == NULL)
+ continue;
+
+ /* components which are not init have no sub objects
+ * to destroy */
+ if (lod_comp_inited(lod_comp)) {
+ rc = lod_sub_destroy(env, obj, th);
+ if (rc)
+ GOTO(out, rc);
+ }
+
+ lu_object_put(env, &obj->do_lu);
+ lod_comp->llc_stripe[j] = NULL;
+ }
+ OBD_FREE_PTR_ARRAY(lod_comp->llc_stripe,
+ lod_comp->llc_stripes_allocated);
+ lod_comp->llc_stripe = NULL;
+ 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;
+ }
+
+ /* info->lti_count has the amount of left components */
+ LASSERTF(info->lti_count >= 0 && info->lti_count < lo->ldo_comp_cnt,
+ "left = %d, lo->ldo_comp_cnt %d\n", (int)info->lti_count,
+ (int)lo->ldo_comp_cnt);
+
+ if (info->lti_count > 0) {
+ struct lod_layout_component *comp_array;
+
+ OBD_ALLOC_PTR_ARRAY(comp_array, info->lti_count);
+ if (comp_array == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ for (i = 0; i < info->lti_count; i++) {
+ memcpy(&comp_array[i],
+ &lo->ldo_comp_entries[info->lti_comp_idx[i]],
+ sizeof(*comp_array));
+ }
+
+ 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 {
+ lod_free_comp_entries(lo);
+ }
+
+ EXIT;
+out:
+ return rc ? rc : deleted;
+}
+
+/**
+ * Delete layout component(s)
+ *
+ * This function sets up the layout data in the env and does the setattrs
+ * required to write out the new layout. The layout itself is modified in
+ * lod_layout_del_prep_layout.
+ *
+ * \param[in] env execution environment for this thread
+ * \param[in] dt object
+ * \param[in] th transaction handle
+ *
+ * \retval 0 on success
+ * \retval negative error number on failure
+ */
+static int lod_layout_del(const struct lu_env *env, struct dt_object *dt,
+ struct thandle *th)
+{
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next = dt_object_child(dt);
+ struct lu_attr *attr = &lod_env_info(env)->lti_attr;
+ int rc;
+
+ 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);
+
+ /* Only do this if we didn't delete all components */
+ if (lo->ldo_comp_cnt > 0) {
+ lo->ldo_mirrors[0].lme_end = lo->ldo_comp_cnt - 1;
+ lod_obj_inc_layout_gen(lo);
+ }
+
+ LASSERT(dt_object_exists(dt));
+ rc = dt_attr_get(env, next, attr);
if (rc)
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;
}
static int lod_get_default_lov_striping(const struct lu_env *env,
struct lod_object *lo,
- struct lod_default_striping *lds);
+ struct lod_default_striping *lds,
+ struct dt_allocation_hint *ah);
/**
* Implementation of dt_object_operations::do_xattr_set.
*
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);
+ struct lu_attr *layout_attr = &lod_env_info(env)->lti_layout_attr;
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct lod_obj_stripe_cb_data data = { {0} };
+ int rc = 0;
+
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];
bool is_del;
/* get existing striping config */
- rc = lod_get_default_lov_striping(env, lod_dt_obj(dt), lds);
+ rc = lod_get_default_lov_striping(env, lod_dt_obj(dt), lds,
+ NULL);
if (rc)
RETURN(rc);
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()
lod_striping_free(env, lod_dt_obj(dt));
rc = lod_sub_xattr_set(env, next, buf, name, fl, th);
+ } else if (fl & LU_XATTR_SPLIT) {
+ rc = lod_sub_xattr_set(env, next, buf, name, fl, th);
+ if (rc)
+ RETURN(rc);
+
+ rc = lod_striping_reload(env, lo, buf);
+ if (rc)
+ RETURN(rc);
+
+ if (lo->ldo_mirror_count > 1 &&
+ layout_attr->la_valid & LA_LAYOUT_VERSION) {
+ /* mirror split */
+ layout_attr->la_layout_version =
+ lo->ldo_layout_gen;
+ data.locd_attr = layout_attr;
+ data.locd_declare = false;
+ data.locd_stripe_cb =
+ lod_obj_stripe_attr_set_cb;
+ rc = lod_obj_for_each_stripe(env, lo, th,
+ &data);
+ if (rc)
+ RETURN(rc);
+ }
+ } 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
!lod_dt_obj(dt)->ldo_comp_cached));
rc = lod_striped_create(env, dt, NULL, NULL, th);
+ if (rc)
+ RETURN(rc);
+
+ if (fl & LU_XATTR_MERGE && lo->ldo_mirror_count > 1 &&
+ layout_attr->la_valid & LA_LAYOUT_VERSION) {
+ /* mirror merge exec phase */
+ layout_attr->la_layout_version =
+ lo->ldo_layout_gen;
+ data.locd_attr = layout_attr;
+ data.locd_declare = false;
+ data.locd_stripe_cb =
+ lod_obj_stripe_attr_set_cb;
+ rc = lod_obj_for_each_stripe(env, lo, th,
+ &data);
+ if (rc)
+ RETURN(rc);
+ }
}
RETURN(rc);
} else if (strcmp(name, XATTR_NAME_FID) == 0) {
if (!S_ISDIR(dt->do_lu.lo_header->loh_attr))
RETURN(0);
- /* set xattr to each stripes, if needed */
+ /* NB: don't delete stripe LMV, because when we do this, normally we
+ * will remove stripes, besides, if directory LMV is corrupt, this will
+ * prevent deleting its LMV and fixing it (via LFSCK).
+ */
+ if (!strcmp(name, XATTR_NAME_LMV))
+ RETURN(0);
+
rc = lod_striping_load(env, lo);
if (rc != 0)
RETURN(rc);
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 (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);
}
*/
static int lod_get_default_lov_striping(const struct lu_env *env,
struct lod_object *lo,
- struct lod_default_striping *lds)
+ struct lod_default_striping *lds,
+ struct dt_allocation_hint *ah)
{
struct lod_thread_info *info = lod_env_info(env);
struct lov_user_md_v1 *v1 = NULL;
ENTRY;
+ lds->lds_def_striping_set = 0;
+
rc = lod_get_lov_ea(env, lo);
if (rc < 0)
RETURN(rc);
lustre_swab_lov_user_md_v3(v3);
lustre_swab_lov_user_md_objects(v3->lmm_objects,
v3->lmm_stripe_count);
- } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_COMP_V1)) {
+ } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_COMP_V1) ||
+ v1->lmm_magic == __swab32(LOV_USER_MAGIC_SEL)) {
comp_v1 = (struct lov_comp_md_v1 *)v1;
lustre_swab_lov_comp_md_v1(comp_v1);
}
if (v1->lmm_magic != LOV_MAGIC_V3 && v1->lmm_magic != LOV_MAGIC_V1 &&
v1->lmm_magic != LOV_MAGIC_COMP_V1 &&
+ v1->lmm_magic != LOV_MAGIC_SEL &&
v1->lmm_magic != LOV_USER_MAGIC_SPECIFIC)
RETURN(-ENOTSUPP);
- if (v1->lmm_magic == LOV_MAGIC_COMP_V1) {
+ if ((v1->lmm_magic == LOV_MAGIC_COMP_V1 ||
+ v1->lmm_magic == LOV_MAGIC_SEL) &&
+ !(ah && ah->dah_append_stripes)) {
comp_v1 = (struct lov_comp_md_v1 *)v1;
comp_cnt = comp_v1->lcm_entry_count;
if (comp_cnt == 0)
RETURN(-EINVAL);
}
- CDEBUG(D_LAYOUT, DFID" stripe_count=%d stripe_size=%d "
- "stripe_offset=%d\n",
+ CDEBUG(D_LAYOUT, DFID" stripe_count=%d stripe_size=%d stripe_offset=%d append_stripes=%d\n",
PFID(lu_object_fid(&lo->ldo_obj.do_lu)),
(int)v1->lmm_stripe_count, (int)v1->lmm_stripe_size,
- (int)v1->lmm_stripe_offset);
+ (int)v1->lmm_stripe_offset,
+ ah ? ah->dah_append_stripes : 0);
- lod_comp->llc_stripe_count = v1->lmm_stripe_count;
+ if (ah && ah->dah_append_stripes)
+ lod_comp->llc_stripe_count = ah->dah_append_stripes;
+ else
+ lod_comp->llc_stripe_count = v1->lmm_stripe_count;
lod_comp->llc_stripe_size = v1->lmm_stripe_size;
lod_comp->llc_stripe_offset = v1->lmm_stripe_offset;
lod_comp->llc_pattern = v1->lmm_pattern;
pool = NULL;
- if (v1->lmm_magic == LOV_USER_MAGIC_V3) {
+ if (ah && ah->dah_append_pool && ah->dah_append_pool[0]) {
+ pool = ah->dah_append_pool;
+ } else if (v1->lmm_magic == LOV_USER_MAGIC_V3) {
/* XXX: sanity check here */
v3 = (struct lov_user_md_v3 *) v1;
if (v3->lmm_pool_name[0] != '\0')
le32_to_cpu(lmu->lum_stripe_offset);
lds->lds_dir_def_hash_type =
le32_to_cpu(lmu->lum_hash_type);
+ lds->lds_dir_def_max_inherit = lmu->lum_max_inherit;
+ lds->lds_dir_def_max_inherit_rr = lmu->lum_max_inherit_rr;
lds->lds_dir_def_striping_set = 1;
}
{
int rc, rc1;
- rc = lod_get_default_lov_striping(env, lo, lds);
+ rc = lod_get_default_lov_striping(env, lo, lds, NULL);
rc1 = lod_get_default_lmv_striping(env, lo, lds);
if (rc == 0 && rc1 < 0)
rc = rc1;
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)
if (!lo->ldo_is_composite)
continue;
- lod_adjust_stripe_info(obj_comp, desc);
+ lod_adjust_stripe_info(obj_comp, desc, 0);
}
} else if (lds->lds_dir_def_striping_set && S_ISDIR(mode)) {
if (lo->ldo_dir_stripe_count == 0)
if (lo->ldo_dir_hash_type == 0)
lo->ldo_dir_hash_type = lds->lds_dir_def_hash_type;
- /*
- * "space" hash type can only be set in default LMV, child use
- * FNV_1A_64 in case it's striped.
- */
- if (lo->ldo_dir_hash_type == LMV_HASH_TYPE_SPACE)
- lo->ldo_dir_hash_type = LMV_HASH_TYPE_FNV_1A_64;
-
CDEBUG(D_LAYOUT, "striping from default dir: count:%hu, "
"offset:%u, hash_type:%u\n",
lo->ldo_dir_stripe_count, lo->ldo_dir_stripe_offset,
}
}
-static inline bool lod_need_inherit_more(struct lod_object *lo, bool from_root)
+static inline bool lod_need_inherit_more(struct lod_object *lo, bool from_root,
+ char *append_pool)
{
struct lod_layout_component *lod_comp;
lod_comp->llc_stripe_offset == LOV_OFFSET_DEFAULT))
return true;
+ if (append_pool && append_pool[0])
+ return true;
+
return false;
}
LASSERT(child);
+ if (ah->dah_append_stripes == -1)
+ ah->dah_append_stripes =
+ d->lod_ost_descs.ltd_lov_desc.ld_tgt_count;
+
if (likely(parent)) {
nextp = dt_object_child(parent);
lp = lod_dt_obj(parent);
* If parent object is not root directory,
* then get default striping from parent object.
*/
- if (likely(lp != NULL) && !fid_is_root(lod_object_fid(lp)))
+ if (likely(lp != NULL)) {
lod_get_default_striping(env, lp, lds);
-
- /* set child default striping info, default value is NULL */
- if (lds->lds_def_striping_set || lds->lds_dir_def_striping_set)
- lc->ldo_def_striping = lds;
+ if (lds->lds_def_striping_set) {
+ rc = lod_verify_striping(env, d, lp,
+ &info->lti_buf, false);
+ if (rc)
+ lds->lds_def_striping_set = 0;
+ }
+ /* inherit default striping except ROOT */
+ if ((lds->lds_def_striping_set ||
+ lds->lds_dir_def_striping_set) &&
+ !fid_is_root(lod_object_fid(lp)))
+ lc->ldo_def_striping = lds;
+ }
/* It should always honour the specified stripes */
/* Note: old client (< 2.7)might also do lfs mkdir, whose EA
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);
* Try from the parent first.
*/
if (likely(lp != NULL)) {
- rc = lod_get_default_lov_striping(env, lp, lds);
- if (rc == 0)
- lod_striping_from_default(lc, lds, child_mode);
+ rc = lod_get_default_lov_striping(env, lp, lds, ah);
+ if (rc == 0 && lds->lds_def_striping_set) {
+ rc = lod_verify_striping(env, d, lp, &info->lti_buf,
+ false);
+ if (rc == 0)
+ lod_striping_from_default(lc, lds, child_mode);
+ }
}
/* Initialize lod_device::lod_md_root object reference */
* - parent has plain(v1/v3) default layout, and some attributes
* are not specified in the default layout;
*/
- if (d->lod_md_root != NULL && lod_need_inherit_more(lc, true)) {
- rc = lod_get_default_lov_striping(env, d->lod_md_root, lds);
+ if (d->lod_md_root != NULL &&
+ lod_need_inherit_more(lc, true, ah->dah_append_pool)) {
+ rc = lod_get_default_lov_striping(env, d->lod_md_root, lds,
+ ah);
+ if (rc || !lds->lds_def_striping_set)
+ goto out;
+
+ rc = lod_verify_striping(env, d, d->lod_md_root, &info->lti_buf,
+ false);
if (rc)
goto out;
+
if (lc->ldo_comp_cnt == 0) {
lod_striping_from_default(lc, lds, child_mode);
} else if (!lds->lds_def_striping_is_composite) {
* fs default striping may not be explicitly set, or historically set
* in config log, use them.
*/
- if (lod_need_inherit_more(lc, false)) {
+ if (lod_need_inherit_more(lc, false, ah->dah_append_pool)) {
if (lc->ldo_comp_cnt == 0) {
rc = lod_alloc_comp_entries(lc, 0, 1);
if (rc)
}
LASSERT(!lc->ldo_is_composite);
lod_comp = &lc->ldo_comp_entries[0];
- desc = &d->lod_desc;
- lod_adjust_stripe_info(lod_comp, 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(rc);
}
-static inline int dt_object_space_hashed(const struct lu_env *env,
- struct lu_device *dev,
- struct dt_object *dt)
+/*
+ * Whether subdirectories under \a dt should be created on MDTs by space QoS
+ *
+ * If LMV_HASH_FLAG_SPACE is set on directory default layout, its subdirectories
+ * should be created on MDT by space QoS.
+ *
+ * \param[in] env execution environment
+ * \param[in] dev lu device
+ * \param[in] dt object
+ *
+ * \retval 1 if directory should create subdir by space usage
+ * \retval 0 if not
+ * \retval -ev if failed
+ */
+static inline int dt_object_qos_mkdir(const struct lu_env *env,
+ struct lu_device *dev,
+ struct dt_object *dt)
{
+ struct lod_thread_info *info = lod_env_info(env);
struct lu_object *obj;
struct lod_object *lo;
struct lmv_user_md *lmu;
- int rc = 0;
+ int rc;
obj = lu_object_find_slice(env, dev, lu_object_fid(&dt->do_lu), NULL);
if (IS_ERR(obj))
lo = lu2lod_obj(obj);
rc = lod_get_default_lmv_ea(env, lo);
- if (rc < 0)
+ dt_object_put(env, dt);
+ if (rc <= 0)
return rc;
- if (rc >= (int)sizeof(*lmu)) {
- struct lod_thread_info *info = lod_env_info(env);
-
- lmu = info->lti_ea_store;
- rc = le32_to_cpu(lmu->lum_hash_type) == LMV_HASH_TYPE_SPACE;
- }
- dt_object_put(env, dt);
+ if (rc < (int)sizeof(*lmu))
+ return -EINVAL;
- return rc;
+ lmu = info->lti_ea_store;
+ 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) {
- /*
- * child and parent should be in the same MDT,
- * but if parent has plain layout, it's allowed.
- */
- if (hint->dah_parent &&
- dt_object_remote(hint->dah_parent)) {
- rc = dt_object_space_hashed(env,
- lo->ldo_obj.do_lu.lo_dev,
- hint->dah_parent);
- if (rc <= 0)
- GOTO(out, rc ? rc : -EREMOTE);
- }
- } else if (lo->ldo_dir_stripe_offset !=
- ss->ss_node_id) {
+ if (lo->ldo_dir_stripe_offset != LMV_OFFSET_DEFAULT &&
+ 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;
- int i;
lod = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
- ltd = &lod->lod_mdt_descs;
- cfs_foreach_bit(ltd->ltd_tgt_bitmap, i) {
- tgt = LTD_TGT(ltd, i);
- if (tgt->ltd_index ==
+ lod_foreach_mdt(lod, mdt) {
+ if (mdt->ltd_index ==
lo->ldo_dir_stripe_offset) {
found_mdt = true;
break;
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;
}
/**
if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_SPEOBJ) ||
i == cfs_fail_val) {
- dt_write_lock(env, stripe, MOR_TGT_CHILD);
+ dt_write_lock(env, stripe, DT_TGT_CHILD);
rc = lod_sub_ref_del(env, stripe, th);
dt_write_unlock(env, stripe);
if (rc != 0)
return dt_invalidate(env, dt_object_child(dt));
}
-static int lod_layout_data_init(struct lod_thread_info *info, __u32 comp_cnt)
+static int lod_declare_instantiate_components(const struct lu_env *env,
+ struct lod_object *lo,
+ struct thandle *th,
+ __u64 reserve)
{
+ struct lod_thread_info *info = lod_env_info(env);
+ int i;
+ int rc = 0;
ENTRY;
- /* clear memory region that will be used for layout change */
- memset(&info->lti_layout_attr, 0, sizeof(struct lu_attr));
- info->lti_count = 0;
+ LASSERT(info->lti_count < lo->ldo_comp_cnt);
- if (info->lti_comp_size >= comp_cnt)
- RETURN(0);
+ for (i = 0; i < info->lti_count; i++) {
+ rc = lod_qos_prep_create(env, lo, NULL, th,
+ info->lti_comp_idx[i], reserve);
+ if (rc)
+ break;
+ }
- if (info->lti_comp_size > 0) {
- OBD_FREE(info->lti_comp_idx,
- info->lti_comp_size * sizeof(__u32));
- info->lti_comp_size = 0;
+ if (!rc) {
+ info->lti_buf.lb_len = lod_comp_md_size(lo, false);
+ rc = lod_sub_declare_xattr_set(env, lod_object_child(lo),
+ &info->lti_buf, XATTR_NAME_LOV, 0, th);
}
- OBD_ALLOC(info->lti_comp_idx, comp_cnt * sizeof(__u32));
- if (!info->lti_comp_idx)
- RETURN(-ENOMEM);
+ RETURN(rc);
+}
- info->lti_comp_size = comp_cnt;
- RETURN(0);
+/**
+ * Check OSTs for an existing component for further extension
+ *
+ * Checks if OSTs are still healthy and not out of space. Gets free space
+ * on OSTs (relative to allocation watermark rmb_low) and compares to
+ * the proposed new_end for this component.
+ *
+ * Decides whether or not to extend a component on its current OSTs.
+ *
+ * \param[in] env execution environment for this thread
+ * \param[in] lo object we're checking
+ * \param[in] index index of this component
+ * \param[in] extension_size extension size for this component
+ * \param[in] extent layout extent for requested operation
+ * \param[in] comp_extent extension component extent
+ * \param[in] write if this is write operation
+ *
+ * \retval true - OK to extend on current OSTs
+ * \retval false - do not extend on current OSTs
+ */
+static bool lod_sel_osts_allowed(const struct lu_env *env,
+ struct lod_object *lo,
+ 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 lod_thread_info *tinfo = lod_env_info(env);
+ struct obd_statfs *sfs = &tinfo->lti_osfs;
+ __u64 available = 0;
+ bool ret = true;
+ int i, rc;
+
+ ENTRY;
+
+ LASSERT(lod_comp->llc_stripe_count != 0);
+
+ lod_getref(&lod->lod_ost_descs);
+ for (i = 0; i < lod_comp->llc_stripe_count; i++) {
+ int index = lod_comp->llc_ost_indices[i];
+ struct lod_tgt_desc *ost = OST_TGT(lod, index);
+ struct obd_statfs_info info = { 0 };
+ int j, repeated = 0;
+
+ LASSERT(ost);
+
+ /* Get the number of times this OST repeats in this component.
+ * Note: inter-component repeats are not counted as this is
+ * considered as a rare case: we try to not repeat OST in other
+ * components if possible. */
+ for (j = 0; j < lod_comp->llc_stripe_count; j++) {
+ if (index != lod_comp->llc_ost_indices[j])
+ continue;
+
+ /* already handled */
+ if (j < i)
+ break;
+
+ repeated++;
+ }
+ if (j < lod_comp->llc_stripe_count)
+ continue;
+
+ if (!test_bit(index, lod->lod_ost_bitmap)) {
+ CDEBUG(D_LAYOUT, "ost %d no longer present\n", index);
+ ret = false;
+ break;
+ }
+
+ 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);
+ ret = false;
+ break;
+ }
+
+ 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;
+ break;
+ }
+
+ /* In bytes */
+ available = sfs->os_bavail * sfs->os_bsize;
+ /* 'available' is relative to the allocation threshold */
+ available -= (__u64) info.os_reserved_mb_low << 20;
+
+ CDEBUG(D_LAYOUT, "ost %d lowwm: %d highwm: %d, "
+ "%llu %% blocks available, %llu %% blocks free\n",
+ index, info.os_reserved_mb_low, info.os_reserved_mb_high,
+ (100ull * sfs->os_bavail) / sfs->os_blocks,
+ (100ull * sfs->os_bfree) / sfs->os_blocks);
+
+ if (reserve * repeated > available) {
+ ret = false;
+ CDEBUG(D_LAYOUT, "low space on ost %d, available %llu "
+ "< extension size %llu repeated %d\n", index,
+ available, reserve, repeated);
+ break;
+ }
+ }
+ lod_putref(lod, &lod->lod_ost_descs);
+
+ RETURN(ret);
}
-static int lod_declare_instantiate_components(const struct lu_env *env,
- struct lod_object *lo, struct thandle *th)
+/**
+ * Adjust extents after component removal
+ *
+ * When we remove an extension component, we move the start of the next
+ * component to match the start of the extension component, so no space is left
+ * without layout.
+ *
+ * \param[in] env execution environment for this thread
+ * \param[in] lo object
+ * \param[in] max_comp layout component
+ * \param[in] index index of this component
+ *
+ * \retval 0 on success
+ * \retval negative errno on error
+ */
+static void lod_sel_adjust_extents(const struct lu_env *env,
+ struct lod_object *lo,
+ int max_comp, int index)
+{
+ struct lod_layout_component *lod_comp = NULL;
+ struct lod_layout_component *next = NULL;
+ struct lod_layout_component *prev = NULL;
+ __u64 new_start = 0;
+ __u64 start;
+ int i;
+
+ /* Extension space component */
+ lod_comp = &lo->ldo_comp_entries[index];
+ next = &lo->ldo_comp_entries[index + 1];
+ prev = &lo->ldo_comp_entries[index - 1];
+
+ LASSERT(lod_comp != NULL && prev != NULL && next != NULL);
+ LASSERT(lod_comp->llc_flags & LCME_FL_EXTENSION);
+
+ /* Previous is being removed */
+ if (prev && prev->llc_id == LCME_ID_INVAL)
+ new_start = prev->llc_extent.e_start;
+ else
+ new_start = lod_comp->llc_extent.e_start;
+
+ for (i = index + 1; i < max_comp; i++) {
+ lod_comp = &lo->ldo_comp_entries[i];
+
+ start = lod_comp->llc_extent.e_start;
+ lod_comp->llc_extent.e_start = new_start;
+
+ /* We only move zero length extendable components */
+ if (!(start == lod_comp->llc_extent.e_end))
+ break;
+
+ LASSERT(!(lod_comp->llc_flags & LCME_FL_INIT));
+
+ lod_comp->llc_extent.e_end = new_start;
+ }
+}
+
+/* Calculate the proposed 'new end' for a component we're extending */
+static __u64 lod_extension_new_end(__u64 extension_size, __u64 extent_end,
+ __u32 stripe_size, __u64 component_end,
+ __u64 extension_end)
+{
+ __u64 new_end;
+
+ LASSERT(extension_size != 0 && stripe_size != 0);
+
+ /* Round up to extension size */
+ if (extent_end == OBD_OBJECT_EOF) {
+ new_end = OBD_OBJECT_EOF;
+ } else {
+ /* Add at least extension_size to the previous component_end,
+ * covering the req layout extent */
+ new_end = max(extent_end - component_end, extension_size);
+ new_end = roundup(new_end, extension_size);
+ new_end += component_end;
+
+ /* Component end must be min stripe size aligned */
+ if (new_end % stripe_size) {
+ CDEBUG(D_LAYOUT, "new component end is not aligned "
+ "by the stripe size %u: [%llu, %llu) ext size "
+ "%llu new end %llu, aligning\n",
+ stripe_size, component_end, extent_end,
+ extension_size, new_end);
+ new_end = roundup(new_end, stripe_size);
+ }
+
+ /* Overflow */
+ if (new_end < extent_end)
+ new_end = OBD_OBJECT_EOF;
+ }
+
+ /* Don't extend past the end of the extension component */
+ if (new_end > extension_end)
+ new_end = extension_end;
+
+ 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
+ * all the previous components up to the current position) to tell the caller
+ * where to start over from. */
+struct sel_data {
+ int sd_force;
+ int sd_repeat;
+};
+
+/**
+ * Process extent updates for a particular layout component
+ *
+ * Handle layout updates for a particular extension space component touched by
+ * a layout update operation. Core function of self-extending PFL feature.
+ *
+ * In general, this function processes exactly *one* stage of an extension
+ * operation, modifying the layout accordingly, then returns to the caller.
+ * The caller is responsible for restarting processing with the new layout,
+ * which may repeatedly return to this function until the extension updates
+ * are complete.
+ *
+ * This function does one of a few things to the layout:
+ * 1. Extends the component before the current extension space component to
+ * allow it to accomodate the requested operation (if space/policy permit that
+ * component to continue on its current OSTs)
+ *
+ * 2. If extension of the existing component fails, we do one of two things:
+ * a. If there is a component after the extension space, we remove the
+ * extension space component, move the start of the next component down
+ * accordingly, then notify the caller to restart processing w/the new
+ * layout.
+ * b. If there is no following component, we try repeating the current
+ * component, creating a new component using the current one as a
+ * template (keeping its stripe properties but not specific striping),
+ * and try assigning striping for this component. If there is sufficient
+ * free space on the OSTs chosen for this component, it is instantiated
+ * and i/o continues there.
+ *
+ * If there is not sufficient space on the new OSTs, we remove this new
+ * component & extend the current component.
+ *
+ * Note further that uninited components followed by extension space can be zero
+ * length meaning that we will try to extend them before initializing them, and
+ * if that fails, they will be removed without initialization.
+ *
+ * 3. If we extend to/beyond the end of an extension space component, that
+ * component is exhausted (all of its range has been given to real components),
+ * so we remove it and restart processing.
+ *
+ * \param[in] env execution environment for this thread
+ * \param[in,out] lo object to update the layout of
+ * \param[in] extent layout extent for requested operation, update
+ * layout to fit this operation
+ * \param[in] th transaction handle for this operation
+ * \param[in,out] max_comp the highest comp for the portion of the layout
+ * we are operating on (For FLR, the chosen
+ * replica). Updated because we may remove
+ * components.
+ * \param[in] index index of the extension space component we're
+ * working on
+ * \param[in] write if this is write op
+ * \param[in,out] force if the extension is to be forced; set here
+ to force it on the 2nd call for the same
+ extension component
+ *
+ * \retval 0 on success
+ * \retval negative errno on error
+ */
+static int lod_sel_handler(const struct lu_env *env,
+ struct lod_object *lo,
+ struct lu_extent *extent,
+ struct thandle *th, int *max_comp,
+ int index, int write,
+ struct sel_data *sd)
{
+ struct lod_device *d = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
struct lod_thread_info *info = lod_env_info(env);
- int i;
+ struct lod_layout_component *lod_comp;
+ struct lod_layout_component *prev;
+ struct lod_layout_component *next = NULL;
+ __u64 extension_size, reserve;
+ __u64 new_end = 0;
+ bool repeated;
+ int change = 0;
int rc = 0;
ENTRY;
- LASSERT(info->lti_count < lo->ldo_comp_cnt);
+ /* First component cannot be extension space */
+ if (index == 0) {
+ CERROR("%s: "DFID" first component cannot be extension space\n",
+ lod2obd(d)->obd_name, PFID(lod_object_fid(lo)));
+ RETURN(-EINVAL);
+ }
- for (i = 0; i < info->lti_count; i++) {
- rc = lod_qos_prep_create(env, lo, NULL, th,
- info->lti_comp_idx[i]);
- if (rc)
+ lod_comp = &lo->ldo_comp_entries[index];
+ prev = &lo->ldo_comp_entries[index - 1];
+ if ((index + 1) < *max_comp)
+ next = &lo->ldo_comp_entries[index + 1];
+
+ /* extension size uses the stripe size field as KiB */
+ extension_size = lod_comp->llc_stripe_size * SEL_UNIT_SIZE;
+
+ CDEBUG(D_LAYOUT, "prev start %llu, extension start %llu, extension end"
+ " %llu, extension size %llu\n", prev->llc_extent.e_start,
+ lod_comp->llc_extent.e_start, lod_comp->llc_extent.e_end,
+ extension_size);
+
+ /* Two extension space components cannot be adjacent & extension space
+ * components cannot be init */
+ if ((prev->llc_flags & LCME_FL_EXTENSION) ||
+ !(ergo(next, !(next->llc_flags & LCME_FL_EXTENSION))) ||
+ lod_comp_inited(lod_comp)) {
+ CERROR("%s: "DFID" invalid extension space components\n",
+ lod2obd(d)->obd_name, PFID(lod_object_fid(lo)));
+ 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, 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
+ * error to the user. */
+ if (rc == -ENOSPC && (next || sd->sd_repeat))
+ rc = 1;
+ if (rc < 0)
+ RETURN(rc);
+ }
+
+ if (sd->sd_force == 0 && rc == 0)
+ rc = !lod_sel_osts_allowed(env, lo, index - 1, reserve, extent,
+ &lod_comp->llc_extent, write);
+
+ repeated = !!(sd->sd_repeat);
+ sd->sd_repeat = 0;
+ sd->sd_force = 0;
+
+ /* Extend previous component */
+ if (rc == 0) {
+ new_end = lod_extension_new_end(extension_size, extent->e_end,
+ prev->llc_stripe_size,
+ prev->llc_extent.e_end,
+ lod_comp->llc_extent.e_end);
+
+ CDEBUG(D_LAYOUT, "new end %llu\n", new_end);
+ lod_comp->llc_extent.e_start = new_end;
+ prev->llc_extent.e_end = new_end;
+
+ if (prev->llc_extent.e_end == lod_comp->llc_extent.e_end) {
+ CDEBUG(D_LAYOUT, "Extension component exhausted\n");
+ lod_comp->llc_id = LCME_ID_INVAL;
+ change--;
+ }
+ } else {
+ /* rc == 1, failed to extend current component */
+ LASSERT(rc == 1);
+ if (next) {
+ /* Normal 'spillover' case - Remove the extension
+ * space component & bring down the start of the next
+ * component. */
+ lod_comp->llc_id = LCME_ID_INVAL;
+ change--;
+ if (!(prev->llc_flags & LCME_FL_INIT)) {
+ prev->llc_id = LCME_ID_INVAL;
+ change--;
+ }
+ lod_sel_adjust_extents(env, lo, *max_comp, index);
+ } else if (lod_comp_inited(prev)) {
+ /* If there is no next, and the previous component is
+ * INIT'ed, try repeating the previous component. */
+ LASSERT(repeated == 0);
+ rc = lod_layout_repeat_comp(env, lo, index - 1);
+ if (rc < 0)
+ RETURN(rc);
+ change++;
+ /* The previous component is a repeated component.
+ * Record this so we don't keep trying to repeat it. */
+ sd->sd_repeat = 1;
+ } else {
+ /* If the previous component is not INIT'ed, this may
+ * be a component we have just instantiated but failed
+ * to extend. Or even a repeated component we failed
+ * to prepare a striping for. Do not repeat but instead
+ * remove the repeated component & force the extention
+ * of the original one */
+ sd->sd_force = 1;
+ if (repeated) {
+ prev->llc_id = LCME_ID_INVAL;
+ change--;
+ }
+ }
+ }
+
+ if (change < 0) {
+ rc = lod_layout_del_prep_layout(env, lo, NULL);
+ if (rc < 0)
+ RETURN(rc);
+ LASSERTF(-rc == change,
+ "number deleted %d != requested %d\n", -rc,
+ change);
+ }
+ *max_comp = *max_comp + change;
+
+ /* lod_del_prep_layout reallocates ldo_comp_entries, so we must
+ * refresh these pointers before using them */
+ lod_comp = &lo->ldo_comp_entries[index];
+ prev = &lo->ldo_comp_entries[index - 1];
+ CDEBUG(D_LAYOUT, "After extent updates: prev start %llu, current start "
+ "%llu, current end %llu max_comp %d ldo_comp_cnt %d\n",
+ prev->llc_extent.e_start, lod_comp->llc_extent.e_start,
+ lod_comp->llc_extent.e_end, *max_comp, lo->ldo_comp_cnt);
+
+ /* Layout changed successfully */
+ RETURN(0);
+}
+
+/**
+ * Declare layout extent updates
+ *
+ * Handles extensions. Identifies extension components touched by current
+ * operation and passes them to processing function.
+ *
+ * Restarts with updated layouts from the processing function until the current
+ * operation no longer touches an extension space component.
+ *
+ * \param[in] env execution environment for this thread
+ * \param[in,out] lo object to update the layout of
+ * \param[in] extent layout extent for requested operation, update layout to
+ * fit this operation
+ * \param[in] th transaction handle for this operation
+ * \param[in] pick identifies chosen mirror for FLR layouts
+ * \param[in] write if this is write op
+ *
+ * \retval 1 on layout changed, 0 on no change
+ * \retval negative errno on error
+ */
+static int lod_declare_update_extents(const struct lu_env *env,
+ struct lod_object *lo, struct lu_extent *extent,
+ struct thandle *th, int pick, int write)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_layout_component *lod_comp;
+ bool layout_changed = false;
+ struct sel_data sd = { 0 };
+ int start_index;
+ int i = 0;
+ int max_comp = 0;
+ int rc = 0, rc2;
+ int change = 0;
+ ENTRY;
+
+ /* This makes us work on the components of the chosen mirror */
+ start_index = lo->ldo_mirrors[pick].lme_start;
+ max_comp = lo->ldo_mirrors[pick].lme_end + 1;
+ if (lo->ldo_flr_state == LCM_FL_NONE)
+ LASSERT(start_index == 0 && max_comp == lo->ldo_comp_cnt);
+
+ CDEBUG(D_LAYOUT, "extent->e_start %llu, extent->e_end %llu\n",
+ extent->e_start, extent->e_end);
+ for (i = start_index; i < max_comp; i++) {
+ lod_comp = &lo->ldo_comp_entries[i];
+
+ /* We've passed all components of interest */
+ if (lod_comp->llc_extent.e_start >= extent->e_end)
break;
+
+ if (lod_comp->llc_flags & LCME_FL_EXTENSION) {
+ layout_changed = true;
+ rc = lod_sel_handler(env, lo, extent, th, &max_comp,
+ i, write, &sd);
+ if (rc < 0)
+ GOTO(out, rc);
+
+ /* Nothing has changed behind the prev one */
+ i -= 2;
+ continue;
+ }
}
- if (!rc) {
- info->lti_buf.lb_len = lod_comp_md_size(lo, false);
- rc = lod_sub_declare_xattr_set(env, lod_object_child(lo),
- &info->lti_buf, XATTR_NAME_LOV, 0, th);
+ /* We may have added or removed components. If so, we must update the
+ * start & ends of all the mirrors after the current one, and the end
+ * of the current mirror. */
+ change = max_comp - 1 - lo->ldo_mirrors[pick].lme_end;
+ if (change) {
+ lo->ldo_mirrors[pick].lme_end += change;
+ for (i = pick + 1; i < lo->ldo_mirror_count; i++) {
+ lo->ldo_mirrors[i].lme_start += change;
+ lo->ldo_mirrors[i].lme_end += change;
+ }
}
- RETURN(rc);
+ EXIT;
+out:
+ /* The amount of components has changed, adjust the lti_comp_idx */
+ rc2 = lod_layout_data_init(info, lo->ldo_comp_cnt);
+
+ return rc < 0 ? rc : rc2 < 0 ? rc2 : layout_changed;
}
+/* If striping is already instantiated or INIT'ed DOM? */
+static bool lod_is_instantiation_needed(struct lod_layout_component *comp)
+{
+ return !(((lov_pattern(comp->llc_pattern) == LOV_PATTERN_MDT) &&
+ lod_comp_inited(comp)) || comp->llc_stripe);
+}
+
+/**
+ * Declare layout update for a non-FLR layout.
+ *
+ * \param[in] env execution environment for this thread
+ * \param[in,out] lo object to update the layout of
+ * \param[in] layout layout intent for requested operation, "update" is
+ * a process of reacting to this
+ * \param[in] buf buffer containing lov ea (see comment on usage inline)
+ * \param[in] th transaction handle for this operation
+ *
+ * \retval 0 on success
+ * \retval negative errno on error
+ */
static int lod_declare_update_plain(const struct lu_env *env,
struct lod_object *lo, struct layout_intent *layout,
const struct lu_buf *buf, struct thandle *th)
struct lod_device *d = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
struct lod_layout_component *lod_comp;
struct lov_comp_md_v1 *comp_v1 = NULL;
+ bool layout_changed = false;
bool replay = false;
int i, rc;
ENTRY;
/* old on-disk EA is stored in info->lti_buf */
comp_v1 = (struct lov_comp_md_v1 *)info->lti_buf.lb_buf;
replay = true;
+ layout_changed = true;
+
+ rc = lod_layout_data_init(info, lo->ldo_comp_cnt);
+ if (rc)
+ GOTO(out, rc);
} else {
/* non replay path */
rc = lod_striping_load(env, lo);
if (lo->ldo_comp_cnt > 1 &&
lod_comp->llc_extent.e_end != OBD_OBJECT_EOF &&
lod_comp->llc_extent.e_end < layout->li_extent.e_end) {
- CDEBUG(replay ? D_ERROR : D_LAYOUT,
- "%s: the defined layout [0, %#llx) does not covers "
- "the write range "DEXT"\n",
- lod2obd(d)->obd_name, lod_comp->llc_extent.e_end,
- PEXT(&layout->li_extent));
+ CDEBUG_LIMIT(replay ? D_ERROR : D_LAYOUT,
+ "%s: the defined layout [0, %#llx) does not "
+ "covers the write range "DEXT"\n",
+ lod2obd(d)->obd_name, lod_comp->llc_extent.e_end,
+ PEXT(&layout->li_extent));
GOTO(out, rc = -EINVAL);
}
- CDEBUG(D_LAYOUT, "%s: "DFID": instantiate components "DEXT"\n",
+ CDEBUG(D_LAYOUT, "%s: "DFID": update components "DEXT"\n",
lod2obd(d)->obd_name, PFID(lod_object_fid(lo)),
PEXT(&layout->li_extent));
+ if (!replay) {
+ rc = lod_declare_update_extents(env, lo, &layout->li_extent,
+ th, 0, layout->li_opc == LAYOUT_INTENT_WRITE);
+ if (rc < 0)
+ GOTO(out, rc);
+ else if (rc)
+ layout_changed = true;
+ }
+
/*
* Iterate ld->ldo_comp_entries, find the component whose extent under
* the write range and not instantianted.
break;
if (!replay) {
- if (lod_comp_inited(lod_comp))
+ /* If striping is instantiated or INIT'ed DOM skip */
+ if (!lod_is_instantiation_needed(lod_comp))
continue;
} else {
/**
LASSERT(info->lti_comp_idx != NULL);
info->lti_comp_idx[info->lti_count++] = i;
+ layout_changed = true;
}
- if (info->lti_count == 0)
+ if (!layout_changed)
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)
lod_striping_free(env, lo);
- RETURN(rc);
+ return rc;
}
static inline int lod_comp_index(struct lod_object *lo,
/**
* Stale other mirrors by writing extent.
*/
-static void lod_stale_components(struct lod_object *lo, int primary,
- struct lu_extent *extent)
+static int lod_stale_components(const struct lu_env *env, struct lod_object *lo,
+ int primary, struct lu_extent *extent,
+ struct thandle *th)
{
struct lod_layout_component *pri_comp, *lod_comp;
+ struct lu_extent pri_extent;
+ int rc = 0;
int i;
+ ENTRY;
/* The writing extent decides which components in the primary
* are affected... */
CDEBUG(D_LAYOUT, "primary mirror %d, "DEXT"\n", primary, PEXT(extent));
+
+restart:
lod_foreach_mirror_comp(pri_comp, lo, primary) {
if (!lu_extent_is_overlapped(extent, &pri_comp->llc_extent))
continue;
lod_comp_index(lo, pri_comp),
PEXT(&pri_comp->llc_extent));
+ pri_extent.e_start = pri_comp->llc_extent.e_start;
+ pri_extent.e_end = pri_comp->llc_extent.e_end;
+
for (i = 0; i < lo->ldo_mirror_count; i++) {
if (i == primary)
continue;
+ rc = lod_declare_update_extents(env, lo, &pri_extent,
+ th, i, 0);
+ /* if update_extents changed the layout, it may have
+ * reallocated the component array, so start over to
+ * avoid using stale pointers */
+ if (rc == 1)
+ goto restart;
+ if (rc < 0)
+ RETURN(rc);
/* ... and then stale other components that are
* overlapping with primary components */
lod_foreach_mirror_comp(lod_comp, lo, i) {
if (!lu_extent_is_overlapped(
- &pri_comp->llc_extent,
+ &pri_extent,
&lod_comp->llc_extent))
continue;
}
}
}
+
+ RETURN(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);
* 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);
+
+ rc = lod_fill_mirrors(lo);
+ if (rc)
+ RETURN(rc);
+
for (i = 0; i < lo->ldo_mirror_count; i++) {
bool ost_avail = true;
int index = (i + seq) % lo->ldo_mirror_count;
}
/* 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 */
if (mlc->mlc_opc == MD_LAYOUT_WRITE) {
struct layout_intent *layout = mlc->mlc_intent;
+ int write = layout->li_opc == LAYOUT_INTENT_WRITE;
int picked;
extent = layout->li_extent;
PFID(lod_object_fid(lo)),
lo->ldo_mirrors[picked].lme_id);
+ /* Update extents of primary before staling */
+ rc = lod_declare_update_extents(env, lo, &extent, th, picked,
+ write);
+ if (rc < 0)
+ GOTO(out, rc);
+
if (layout->li_opc == LAYOUT_INTENT_TRUNC) {
/**
* trunc transfers [0, size) in the intent extent, we'd
}
/* stale overlapping components from other mirrors */
- lod_stale_components(lo, picked, &extent);
+ rc = lod_stale_components(env, lo, picked, &extent, th);
+ if (rc < 0)
+ GOTO(out, rc);
/* restore truncate intent extent */
if (layout->li_opc == LAYOUT_INTENT_TRUNC)
&lod_comp->llc_extent))
break;
- if (lod_comp_inited(lod_comp))
+ if (!lod_is_instantiation_needed(lod_comp))
continue;
info->lti_comp_idx[info->lti_count++] =
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",
* 2. transfer layout version to all objects to close write era. */
if (mlc->mlc_opc == MD_LAYOUT_WRITE) {
+ struct layout_intent *layout = mlc->mlc_intent;
+ int write = layout->li_opc == LAYOUT_INTENT_WRITE;
+
LASSERT(mlc->mlc_intent != NULL);
extent = mlc->mlc_intent->li_extent;
CDEBUG(D_LAYOUT, DFID": intent to write: "DEXT"\n",
PFID(lod_object_fid(lo)), PEXT(&extent));
+ /* 1. Update extents of primary before staling */
+ rc = lod_declare_update_extents(env, lo, &extent, th, primary,
+ write);
+ if (rc < 0)
+ GOTO(out, rc);
+
if (mlc->mlc_intent->li_opc == LAYOUT_INTENT_TRUNC) {
/**
* trunc transfers [0, size) in the intent extent, we'd
extent.e_start = extent.e_end;
extent.e_end = OBD_OBJECT_EOF;
}
- /* 1. stale overlapping components */
- lod_stale_components(lo, primary, &extent);
- /* 2. find out the components need instantiating.
+ /* 2. stale overlapping components */
+ rc = lod_stale_components(env, lo, primary, &extent, th);
+ if (rc < 0)
+ GOTO(out, rc);
+
+ /* 3. find the components which need instantiating.
* instantiate [0, mlc->mlc_intent->e_end) */
/* restore truncate intent extent */
&lod_comp->llc_extent))
break;
- if (lod_comp_inited(lod_comp))
+ if (!lod_is_instantiation_needed(lod_comp))
continue;
CDEBUG(D_LAYOUT, "write instantiate %d / %d\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);
struct thandle *th)
{
struct lod_thread_info *info = lod_env_info(env);
+ struct lu_attr *layout_attr = &info->lti_layout_attr;
unsigned sync_components = 0;
unsigned resync_components = 0;
int i;
GOTO(out, rc = -EINVAL);
}
- CDEBUG(D_LAYOUT, DFID": resynced %u/%zu components\n",
+ CDEBUG(D_LAYOUT, DFID": synced %u resynced %u/%zu components\n",
PFID(lod_object_fid(lo)),
- resync_components, mlc->mlc_resync_count);
+ sync_components, resync_components, mlc->mlc_resync_count);
lo->ldo_flr_state = LCM_FL_RDONLY;
lod_obj_inc_layout_gen(lo);
+ layout_attr->la_valid = LA_LAYOUT_VERSION;
+ layout_attr->la_layout_version = 0; /* set current version */
+ rc = lod_declare_attr_set(env, &lo->ldo_obj, layout_attr, th);
+ if (rc)
+ GOTO(out, rc);
+
info->lti_buf.lb_len = lod_comp_md_size(lo, false);
rc = lod_sub_declare_xattr_set(env, lod_object_child(lo),
&info->lti_buf, XATTR_NAME_LOV, 0, th);
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);
-
- rc = lod_striping_load(env, lo);
- if (rc)
- GOTO(out, rc);
+ 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;
+ char *stripe_name = info->lti_key;
+ struct lu_buf *lmv_buf = &info->lti_buf;
+ __u32 final_stripe_count;
+ 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) {
+ 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_HASH_FLAG_FIXED);
+ lmv->lmv_layout_version =
+ cpu_to_le32(lo->ldo_dir_layout_version + 1);
+ lmv->lmv_migrate_offset = 0;
+ lmv->lmv_migrate_hash = 0;
+
+ for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
+ dto = lo->ldo_stripe[i];
+ if (!dto)
+ continue;
+
+ if (i < final_stripe_count) {
+ 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);
LASSERT(lo->ldo_comp_cnt > 0);
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,
ENTRY;
rc = lod_fld_lookup(env, lod, lu_object_fid(lo), &idx, &type);
- if (rc != 0) {
- /* Note: Sometimes, it will Return EAGAIN here, see
- * ptrlpc_import_delay_req(), which might confuse
- * lu_object_find_at() and make it wait there incorrectly.
- * so we convert it to EIO here.*/
- if (rc == -EAGAIN)
- rc = -EIO;
-
+ if (rc != 0)
RETURN(rc);
- }
if (type == LU_SEQ_RANGE_MDT &&
idx == lu_site2seq(lo->lo_dev->ld_site)->ss_node_id) {
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