*/
static int lod_insert(const struct lu_env *env, struct dt_object *dt,
const struct dt_rec *rec, const struct dt_key *key,
- struct thandle *th, int ign)
+ struct thandle *th)
{
- return lod_sub_insert(env, dt_object_child(dt), rec, key, th, ign);
+ return lod_sub_insert(env, dt_object_child(dt), rec, key, th);
}
/**
static struct dt_it *lod_striped_it_init(const struct lu_env *env,
struct dt_object *dt, __u32 attr)
{
- struct lod_object *lo = lod_dt_obj(dt);
- struct dt_object *next;
- struct lod_it *it = &lod_env_info(env)->lti_it;
- struct dt_it *it_next;
- ENTRY;
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next;
+ struct lod_it *it = &lod_env_info(env)->lti_it;
+ struct dt_it *it_next;
+ __u16 index = 0;
LASSERT(lo->ldo_dir_stripe_count > 0);
- next = lo->ldo_stripe[0];
- LASSERT(next != NULL);
+
+ do {
+ next = lo->ldo_stripe[index];
+ if (next && dt_object_exists(next))
+ break;
+ } while (++index < lo->ldo_dir_stripe_count);
+
+ /* no valid stripe */
+ if (!next || !dt_object_exists(next))
+ return ERR_PTR(-ENODEV);
+
LASSERT(next->do_index_ops != NULL);
it_next = next->do_index_ops->dio_it.init(env, next, attr);
* additional ones */
LASSERT(it->lit_obj == NULL);
- it->lit_stripe_index = 0;
+ it->lit_stripe_index = index;
it->lit_attr = attr;
it->lit_it = it_next;
it->lit_obj = dt;
LOD_CHECK_STRIPED_IT(env, it, lo);
next = lo->ldo_stripe[it->lit_stripe_index];
- LASSERT(next != NULL);
- LASSERT(next->do_index_ops != NULL);
-
- next->do_index_ops->dio_it.fini(env, it->lit_it);
+ if (next) {
+ LASSERT(next->do_index_ops != NULL);
+ next->do_index_ops->dio_it.fini(env, it->lit_it);
+ }
}
/* the iterator not in use any more */
static int lod_striped_it_get(const struct lu_env *env, struct dt_it *di,
const struct dt_key *key)
{
- const struct lod_it *it = (const struct lod_it *)di;
- struct lod_object *lo = lod_dt_obj(it->lit_obj);
- struct dt_object *next;
- ENTRY;
+ const struct lod_it *it = (const struct lod_it *)di;
+ struct lod_object *lo = lod_dt_obj(it->lit_obj);
+ struct dt_object *next;
LOD_CHECK_STRIPED_IT(env, it, lo);
next = lo->ldo_stripe[it->lit_stripe_index];
LASSERT(next != NULL);
+ LASSERT(dt_object_exists(next));
LASSERT(next->do_index_ops != NULL);
return next->do_index_ops->dio_it.get(env, it->lit_it, key);
*/
static void lod_striped_it_put(const struct lu_env *env, struct dt_it *di)
{
- struct lod_it *it = (struct lod_it *)di;
- struct lod_object *lo = lod_dt_obj(it->lit_obj);
- struct dt_object *next;
+ struct lod_it *it = (struct lod_it *)di;
+ struct lod_object *lo = lod_dt_obj(it->lit_obj);
+ struct dt_object *next;
+
+ /*
+ * If lit_it == NULL, then it means the sub_it has been finished,
+ * which only happens in failure cases, see lod_striped_it_next()
+ */
+ if (!it->lit_it)
+ return;
LOD_CHECK_STRIPED_IT(env, it, lo);
*/
static int lod_striped_it_next(const struct lu_env *env, struct dt_it *di)
{
- struct lod_it *it = (struct lod_it *)di;
- struct lod_object *lo = lod_dt_obj(it->lit_obj);
- struct dt_object *next;
- struct dt_it *it_next;
- int rc;
+ struct lod_it *it = (struct lod_it *)di;
+ struct lod_object *lo = lod_dt_obj(it->lit_obj);
+ struct dt_object *next;
+ struct dt_it *it_next;
+ __u32 index;
+ int rc;
+
ENTRY;
LOD_CHECK_STRIPED_IT(env, it, lo);
next = lo->ldo_stripe[it->lit_stripe_index];
LASSERT(next != NULL);
+ LASSERT(dt_object_exists(next));
LASSERT(next->do_index_ops != NULL);
again:
rc = next->do_index_ops->dio_it.next(env, it->lit_it);
RETURN(rc);
}
- /* go to next stripe */
- if (it->lit_stripe_index + 1 >= lo->ldo_dir_stripe_count)
- RETURN(1);
-
- it->lit_stripe_index++;
-
next->do_index_ops->dio_it.put(env, it->lit_it);
next->do_index_ops->dio_it.fini(env, it->lit_it);
it->lit_it = NULL;
- next = lo->ldo_stripe[it->lit_stripe_index];
- LASSERT(next != NULL);
- rc = next->do_ops->do_index_try(env, next, &dt_directory_features);
- if (rc != 0)
- RETURN(rc);
+ /* go to next stripe */
+ index = it->lit_stripe_index;
+ while (++index < lo->ldo_dir_stripe_count) {
+ next = lo->ldo_stripe[index];
+ if (!next)
+ continue;
- LASSERT(next->do_index_ops != NULL);
+ if (!dt_object_exists(next))
+ continue;
+
+ rc = next->do_ops->do_index_try(env, next,
+ &dt_directory_features);
+ if (rc != 0)
+ RETURN(rc);
+
+ LASSERT(next->do_index_ops != NULL);
+
+ it_next = next->do_index_ops->dio_it.init(env, next,
+ it->lit_attr);
+ if (IS_ERR(it_next))
+ RETURN(PTR_ERR(it_next));
+
+ rc = next->do_index_ops->dio_it.get(env, it_next,
+ (const struct dt_key *)"");
+ if (rc <= 0)
+ RETURN(rc == 0 ? -EIO : rc);
- it_next = next->do_index_ops->dio_it.init(env, next, it->lit_attr);
- if (!IS_ERR(it_next)) {
it->lit_it = it_next;
+ it->lit_stripe_index = index;
goto again;
- } else {
- rc = PTR_ERR(it_next);
+
}
- RETURN(rc);
+ RETURN(1);
}
/**
int rc;
ENTRY;
- /* If it is not a striped directory, then load nothing. */
if (magic != LMV_MAGIC_V1)
RETURN(0);
- /* If it is in migration (or failure), then load nothing. */
- if (le32_to_cpu(lmv1->lmv_hash_type) & LMV_HASH_FLAG_MIGRATION)
- RETURN(0);
-
stripes = le32_to_cpu(lmv1->lmv_stripe_count);
if (stripes < 1)
RETURN(0);
LASSERT(next->do_ops);
LASSERT(next->do_ops->do_index_try);
- rc = lod_load_striping_locked(env, lo);
+ rc = lod_striping_load(env, lo);
if (rc != 0)
RETURN(rc);
int i;
for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
- if (dt_object_exists(lo->ldo_stripe[i]) == 0)
+ if (!lo->ldo_stripe[i])
+ continue;
+ if (!dt_object_exists(lo->ldo_stripe[i]))
continue;
rc = lo->ldo_stripe[i]->do_ops->do_index_try(env,
lo->ldo_stripe[i], feat);
}
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;
data->locd_comp_skip_cb(env, lo, i, data))
continue;
+ if (data->locd_comp_cb) {
+ rc = data->locd_comp_cb(env, lo, i, data);
+ if (rc)
+ RETURN(rc);
+ }
+
+ /* could used just to do sth about component, not each
+ * stripes
+ */
+ if (!data->locd_stripe_cb)
+ continue;
+
LASSERT(lod_comp->llc_stripe_count > 0);
for (j = 0; j < lod_comp->llc_stripe_count; j++) {
struct dt_object *dt = lod_comp->llc_stripe[j];
* is being initialized as we don't need this information till
* few specific cases like destroy, chown
*/
- rc = lod_load_striping(env, lo);
+ rc = lod_striping_load(env, lo);
if (rc)
RETURN(rc);
for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
if (lo->ldo_stripe[i] == NULL)
continue;
+ if (!dt_object_exists(lo->ldo_stripe[i]))
+ continue;
rc = lod_sub_declare_attr_set(env, lo->ldo_stripe[i],
attr, th);
if (rc != 0)
* the in-memory striping information has been freed in lod_xattr_set()
* due to layout change. It has to load stripe here again. It only
* changes flags of layout so declare_attr_set() is still accurate */
- rc = lod_load_striping_locked(env, lo);
+ rc = lod_striping_load(env, lo);
if (rc)
RETURN(rc);
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);
rc = dt_xattr_get(env, dt_object_child(dt), buf, name);
if (strcmp(name, XATTR_NAME_LMV) == 0) {
struct lmv_mds_md_v1 *lmv1;
+ struct lmv_foreign_md *lfm;
int rc1 = 0;
if (rc > (typeof(rc))sizeof(*lmv1))
RETURN(rc);
- if (rc < (typeof(rc))sizeof(*lmv1))
+ /* short (<= sizeof(struct lmv_mds_md_v1)) foreign LMV case */
+ /* XXX empty foreign LMV is not allowed */
+ if (rc <= offsetof(typeof(*lfm), lfm_value))
RETURN(rc = rc > 0 ? -EINVAL : rc);
if (buf->lb_buf == NULL || buf->lb_len == 0) {
CLASSERT(sizeof(*lmv1) <= sizeof(info->lti_key));
+ /* lti_buf is large enough for *lmv1 or a short
+ * (<= sizeof(struct lmv_mds_md_v1)) foreign LMV
+ */
info->lti_buf.lb_buf = info->lti_key;
info->lti_buf.lb_len = sizeof(*lmv1);
rc = dt_xattr_get(env, dt_object_child(dt),
&info->lti_buf, name);
+ if (unlikely(rc <= offsetof(typeof(*lfm),
+ lfm_value)))
+ RETURN(rc = rc > 0 ? -EINVAL : rc);
+
+ lfm = info->lti_buf.lb_buf;
+ if (le32_to_cpu(lfm->lfm_magic) == LMV_MAGIC_FOREIGN)
+ RETURN(rc);
+
if (unlikely(rc != sizeof(*lmv1)))
RETURN(rc = rc > 0 ? -EINVAL : rc);
le32_to_cpu(lmv1->lmv_stripe_count),
LMV_MAGIC_V1);
} else {
+ lfm = buf->lb_buf;
+ if (le32_to_cpu(lfm->lfm_magic) == LMV_MAGIC_FOREIGN)
+ RETURN(rc);
+
+ if (rc != sizeof(*lmv1))
+ RETURN(rc = rc > 0 ? -EINVAL : rc);
+
rc1 = lod_load_lmv_shards(env, lod_dt_obj(dt),
buf, false);
}
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);
}
lmm1 = (struct lmv_mds_md_v1 *)info->lti_ea_store;
+ memset(lmm1, 0, sizeof(*lmm1));
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_migrate_hash = cpu_to_le32(lo->ldo_dir_migrate_hash);
+ lmm1->lmv_migrate_offset =
+ cpu_to_le32(lo->ldo_dir_migrate_offset);
+ }
rc = lod_fld_lookup(env, lod, lu_object_fid(&dt->do_lu),
&mdtidx, &type);
if (rc != 0)
int rc = 0;
ENTRY;
- if (le32_to_cpu(lmv1->lmv_hash_type) & LMV_HASH_FLAG_MIGRATION)
+ LASSERT(mutex_is_locked(&lo->ldo_layout_mutex));
+
+ /* XXX may be useless as not called for foreign LMV ?? */
+ if (le32_to_cpu(lmv1->lmv_magic) == LMV_MAGIC_FOREIGN)
RETURN(0);
if (le32_to_cpu(lmv1->lmv_magic) == LMV_MAGIC_STRIPE) {
__u32 idx;
fid_le_to_cpu(fid, &lmv1->lmv_stripe_fids[i]);
- if (!fid_is_sane(fid))
- GOTO(out, rc = -ESTALE);
+ if (!fid_is_sane(fid)) {
+ stripe[i] = NULL;
+ continue;
+ }
rc = lod_fld_lookup(env, lod, fid, &idx, &type);
if (rc != 0)
lo->ldo_dir_stripe_count = le32_to_cpu(lmv1->lmv_stripe_count);
lo->ldo_dir_stripes_allocated = le32_to_cpu(lmv1->lmv_stripe_count);
if (rc != 0)
- lod_object_free_striping(env, lo);
+ lod_striping_free_nolock(env, lo);
RETURN(rc);
}
struct linkea_data ldata = { NULL };
struct lu_buf linkea_buf;
+ /* OBD_FAIL_MDS_STRIPE_FID may leave stripe uninitialized */
+ if (!dto)
+ continue;
+
rc = lod_sub_declare_create(env, dto, attr, NULL, dof, th);
if (rc != 0)
GOTO(out, rc);
struct dt_object_format *dof,
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);
/* 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);
- LASSERT(le32_to_cpu(lum->lum_stripe_count) > 0);
- stripe_count = le32_to_cpu(lum->lum_stripe_count);
+ stripe_count = lo->ldo_dir_stripe_count;
OBD_ALLOC(idx_array, sizeof(idx_array[0]) * stripe_count);
if (idx_array == NULL)
continue;
tgt_dt = tgt->ltd_tgt;
- rc = dt_statfs(env, tgt_dt, NULL);
+ rc = dt_statfs(env, tgt_dt, &info->lti_osfs);
if (rc) {
/* this OSP doesn't feel well */
rc = 0;
* in the above loop */
LASSERT(tgt_dt != NULL);
LASSERT(fid_is_sane(&fid));
+
+ /* fail a remote stripe FID allocation */
+ if (i && 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,
stripe[i] = dto;
}
- lo->ldo_dir_stripe_loaded = 1;
lo->ldo_dir_striped = 1;
lo->ldo_stripe = stripe;
lo->ldo_dir_stripe_count = i;
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);
}
/**
+ *
+ * Alloc cached foreign LMV
+ *
+ * \param[in] lo object
+ * \param[in] size size of foreign LMV
+ *
+ * \retval 0 on success
+ * \retval negative if failed
+ */
+int lod_alloc_foreign_lmv(struct lod_object *lo, size_t size)
+{
+ OBD_ALLOC_LARGE(lo->ldo_foreign_lmv, size);
+ if (lo->ldo_foreign_lmv == NULL)
+ return -ENOMEM;
+ lo->ldo_foreign_lmv_size = size;
+ lo->ldo_dir_is_foreign = 1;
+
+ return 0;
+}
+
+/**
* Declare create striped md object.
*
* The function declares intention to create a striped directory. This is a
le32_to_cpu(lum->lum_magic), le32_to_cpu(lum->lum_stripe_count),
(int)le32_to_cpu(lum->lum_stripe_offset));
- if (lo->ldo_dir_stripe_count == 0)
+ if (lo->ldo_dir_stripe_count == 0) {
+ if (lo->ldo_dir_is_foreign) {
+ rc = lod_alloc_foreign_lmv(lo, lum_buf->lb_len);
+ if (rc != 0)
+ GOTO(out, rc);
+ memcpy(lo->ldo_foreign_lmv, lum, lum_buf->lb_len);
+ lo->ldo_dir_stripe_loaded = 1;
+ }
GOTO(out, rc = 0);
+ }
/* prepare dir striped objects */
rc = lod_prep_md_striped_create(env, dt, attr, lum, dof, th);
if (rc != 0) {
/* failed to create striping, let's reset
* config so that others don't get confused */
- lod_object_free_striping(env, lo);
+ lod_striping_free(env, lo);
GOTO(out, rc);
}
out:
}
/**
- * Implementation of dt_object_operations::do_declare_xattr_set.
+ * 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().
*
- * Used with regular (non-striped) objects. Basically it
- * initializes the striping information and applies the
- * change to all the stripes.
+ * \param[in] env execution environment
+ * \param[in] dt target object
+ * \param[in] buf LMV buf which contains source stripe fids
+ * \param[in] th transaction handle
*
- * \see dt_object_operations::do_declare_xattr_set() in the API description
- * for details.
+ * \retval 0 on success
+ * \retval negative if failed
*/
-static int lod_dir_declare_xattr_set(const struct lu_env *env,
- struct dt_object *dt,
- const struct lu_buf *buf,
- const char *name, int fl,
- struct thandle *th)
+static int lod_dir_declare_layout_add(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_buf *buf,
+ struct thandle *th)
{
- struct dt_object *next = dt_object_child(dt);
- struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
- struct lod_object *lo = lod_dt_obj(dt);
- int i;
- int rc;
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_device *lod = lu2lod_dev(dt->do_lu.lo_dev);
+ struct lod_tgt_descs *ltd = &lod->lod_mdt_descs;
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next = dt_object_child(dt);
+ struct dt_object_format *dof = &info->lti_format;
+ struct lmv_mds_md_v1 *lmv = 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;
+ int i;
+ int rc;
+
ENTRY;
- if (strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0) {
- struct lmv_user_md_v1 *lum;
+ if (le32_to_cpu(lmv->lmv_magic) != LMV_MAGIC_V1)
+ RETURN(-EINVAL);
- LASSERT(buf != NULL && buf->lb_buf != NULL);
- lum = buf->lb_buf;
- rc = lod_verify_md_striping(d, lum);
- if (rc != 0)
- RETURN(rc);
- } else if (strcmp(name, XATTR_NAME_LOV) == 0) {
- rc = lod_verify_striping(d, lo, buf, false);
- if (rc != 0)
- RETURN(rc);
- }
+ if (stripe_count == 0)
+ RETURN(-EINVAL);
- rc = lod_sub_declare_xattr_set(env, next, buf, name, fl, th);
- if (rc != 0)
- RETURN(rc);
+ dof->dof_type = DFT_DIR;
- /* Note: Do not set LinkEA on sub-stripes, otherwise
- * it will confuse the fid2path process(see mdt_path_current()).
- * The linkEA between master and sub-stripes is set in
- * lod_xattr_set_lmv(). */
- if (strcmp(name, XATTR_NAME_LINK) == 0)
- RETURN(0);
+ OBD_ALLOC(stripe,
+ sizeof(*stripe) * (lo->ldo_dir_stripe_count + stripe_count));
+ if (stripe == NULL)
+ RETURN(-ENOMEM);
- /* set xattr to each stripes, if needed */
- rc = lod_load_striping(env, lo);
- if (rc != 0)
- RETURN(rc);
+ for (i = 0; i < lo->ldo_dir_stripe_count; i++)
+ stripe[i] = lo->ldo_stripe[i];
- if (lo->ldo_dir_stripe_count == 0)
- RETURN(0);
+ for (i = 0; i < stripe_count; i++) {
+ fid_le_to_cpu(fid,
+ &lmv->lmv_stripe_fids[i]);
+ if (!fid_is_sane(fid))
+ continue;
- for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
- LASSERT(lo->ldo_stripe[i]);
+ rc = lod_fld_lookup(env, lod, fid, &idx, &type);
+ if (rc)
+ GOTO(out, rc);
- rc = lod_sub_declare_xattr_set(env, lo->ldo_stripe[i],
- buf, name, fl, th);
- if (rc != 0)
- break;
- }
+ if (idx == lod2lu_dev(lod)->ld_site->ld_seq_site->ss_node_id) {
+ tgt_dt = lod->lod_child;
+ } else {
+ tgt = LTD_TGT(ltd, idx);
+ if (tgt == NULL)
+ GOTO(out, rc = -ESTALE);
+ tgt_dt = tgt->ltd_tgt;
+ }
- RETURN(rc);
-}
+ 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));
-static int
-lod_obj_stripe_replace_parent_fid_cb(const struct lu_env *env,
- struct lod_object *lo,
- struct dt_object *dt, struct thandle *th,
- int comp_idx, int stripe_idx,
- struct lod_obj_stripe_cb_data *data)
-{
- struct lod_thread_info *info = lod_env_info(env);
- struct lod_layout_component *comp = &lo->ldo_comp_entries[comp_idx];
- struct filter_fid *ff = &info->lti_ff;
- struct lu_buf *buf = &info->lti_buf;
- int rc;
+ stripe[i + lo->ldo_dir_stripe_count] = dto;
- buf->lb_buf = ff;
- buf->lb_len = sizeof(*ff);
- rc = dt_xattr_get(env, dt, buf, XATTR_NAME_FID);
- if (rc < 0) {
- if (rc == -ENODATA)
- return 0;
- return rc;
- }
+ if (!dt_try_as_dir(env, dto))
+ GOTO(out, rc = -ENOTDIR);
- filter_fid_le_to_cpu(ff, ff, sizeof(*ff));
- if (lu_fid_eq(lu_object_fid(&lo->ldo_obj.do_lu), &ff->ff_parent) &&
- ff->ff_layout.ol_comp_id == comp->llc_id)
- return 0;
+ rc = lod_sub_declare_ref_add(env, dto, th);
+ if (rc)
+ GOTO(out, rc);
- /* rewrite filter_fid */
- memset(ff, 0, sizeof(*ff));
- ff->ff_parent = *lu_object_fid(&lo->ldo_obj.do_lu);
- ff->ff_parent.f_ver = stripe_idx;
- ff->ff_layout.ol_stripe_size = comp->llc_stripe_size;
- ff->ff_layout.ol_stripe_count = comp->llc_stripe_count;
- ff->ff_layout.ol_comp_id = comp->llc_id;
- ff->ff_layout.ol_comp_start = comp->llc_extent.e_start;
- ff->ff_layout.ol_comp_end = comp->llc_extent.e_end;
- filter_fid_cpu_to_le(ff, ff, sizeof(*ff));
+ rc = lod_sub_declare_insert(env, dto,
+ (const struct dt_rec *)rec,
+ (const struct dt_key *)dot, th);
+ if (rc)
+ GOTO(out, rc);
- if (data->locd_declare)
- rc = lod_sub_declare_xattr_set(env, dt, buf, XATTR_NAME_FID,
- LU_XATTR_REPLACE, th);
- else
- rc = lod_sub_xattr_set(env, dt, buf, XATTR_NAME_FID,
- LU_XATTR_REPLACE, th);
+ rc = lod_sub_declare_insert(env, dto,
+ (const struct dt_rec *)rec,
+ (const struct dt_key *)dotdot, th);
+ if (rc)
+ GOTO(out, rc);
- return rc;
-}
+ rc = lod_sub_declare_xattr_set(env, dto, buf,
+ XATTR_NAME_LMV, 0, th);
+ if (rc)
+ GOTO(out, rc);
-/**
+ snprintf(stripe_name, sizeof(info->lti_key), DFID":%u",
+ PFID(lu_object_fid(&dto->do_lu)),
+ i + lo->ldo_dir_stripe_count);
+
+ sname = lod_name_get(env, stripe_name, strlen(stripe_name));
+ rc = linkea_links_new(&ldata, &info->lti_linkea_buf,
+ sname, lu_object_fid(&dt->do_lu));
+ if (rc)
+ GOTO(out, rc);
+
+ linkea_buf.lb_buf = ldata.ld_buf->lb_buf;
+ linkea_buf.lb_len = ldata.ld_leh->leh_len;
+ rc = lod_sub_declare_xattr_set(env, dto, &linkea_buf,
+ XATTR_NAME_LINK, 0, th);
+ if (rc)
+ GOTO(out, rc);
+
+ rc = lod_sub_declare_insert(env, next,
+ (const struct dt_rec *)rec,
+ (const struct dt_key *)stripe_name,
+ th);
+ if (rc)
+ GOTO(out, rc);
+
+ rc = lod_sub_declare_ref_add(env, next, th);
+ if (rc)
+ GOTO(out, rc);
+ }
+
+ if (lo->ldo_stripe)
+ OBD_FREE(lo->ldo_stripe,
+ sizeof(*stripe) * lo->ldo_dir_stripes_allocated);
+ lo->ldo_stripe = stripe;
+ lo->ldo_dir_migrate_offset = lo->ldo_dir_stripe_count;
+ lo->ldo_dir_migrate_hash = le32_to_cpu(lmv->lmv_hash_type);
+ lo->ldo_dir_stripe_count += stripe_count;
+ lo->ldo_dir_stripes_allocated += stripe_count;
+ lo->ldo_dir_hash_type |= LMV_HASH_FLAG_MIGRATION;
+
+ RETURN(0);
+out:
+ i = lo->ldo_dir_stripe_count;
+ while (i < lo->ldo_dir_stripe_count + stripe_count && stripe[i])
+ dt_object_put(env, stripe[i++]);
+
+ OBD_FREE(stripe,
+ sizeof(*stripe) * (stripe_count + lo->ldo_dir_stripe_count));
+ RETURN(rc);
+}
+
+static int lod_dir_declare_layout_delete(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_buf *buf,
+ struct thandle *th)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next = dt_object_child(dt);
+ struct lmv_user_md *lmu = buf->lb_buf;
+ __u32 final_stripe_count;
+ char *stripe_name = info->lti_key;
+ struct dt_object *dto;
+ int i;
+ int rc = 0;
+
+ if (!lmu)
+ return -EINVAL;
+
+ final_stripe_count = le32_to_cpu(lmu->lum_stripe_count);
+ if (final_stripe_count >= lo->ldo_dir_stripe_count)
+ return -EINVAL;
+
+ for (i = final_stripe_count; i < lo->ldo_dir_stripe_count; i++) {
+ dto = lo->ldo_stripe[i];
+ if (!dto)
+ continue;
+
+ if (!dt_try_as_dir(env, dto))
+ return -ENOTDIR;
+
+ rc = lod_sub_declare_delete(env, dto,
+ (const struct dt_key *)dot, th);
+ if (rc)
+ return rc;
+
+ rc = lod_sub_declare_ref_del(env, dto, th);
+ if (rc)
+ return rc;
+
+ rc = lod_sub_declare_delete(env, dto,
+ (const struct dt_key *)dotdot, th);
+ if (rc)
+ return rc;
+
+ snprintf(stripe_name, sizeof(info->lti_key), DFID":%d",
+ PFID(lu_object_fid(&dto->do_lu)), i);
+
+ rc = lod_sub_declare_delete(env, next,
+ (const struct dt_key *)stripe_name, th);
+ if (rc)
+ return rc;
+
+ rc = lod_sub_declare_ref_del(env, next, th);
+ if (rc)
+ return rc;
+ }
+
+ return 0;
+}
+
+/*
+ * delete stripes from dir master object, the lum_stripe_count in argument is
+ * the final stripe count, the stripes after that will be deleted, NB, they
+ * are not destroyed, but deleted from it's parent namespace, this function
+ * will be called in two places:
+ * 1. mdd_migrate_create() delete stripes from source, and append them to
+ * target.
+ * 2. mdd_dir_layout_shrink() delete stripes from source, and destroy them.
+ */
+static int lod_dir_layout_delete(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_buf *buf,
+ struct thandle *th)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next = dt_object_child(dt);
+ struct lmv_user_md *lmu = buf->lb_buf;
+ __u32 final_stripe_count;
+ char *stripe_name = info->lti_key;
+ struct dt_object *dto;
+ int i;
+ int rc = 0;
+
+ ENTRY;
+
+ if (!lmu)
+ RETURN(-EINVAL);
+
+ final_stripe_count = le32_to_cpu(lmu->lum_stripe_count);
+ if (final_stripe_count >= lo->ldo_dir_stripe_count)
+ RETURN(-EINVAL);
+
+ for (i = final_stripe_count; i < lo->ldo_dir_stripe_count; i++) {
+ dto = lo->ldo_stripe[i];
+ if (!dto)
+ continue;
+
+ rc = lod_sub_delete(env, dto,
+ (const struct dt_key *)dotdot, th);
+ if (rc)
+ break;
+
+ snprintf(stripe_name, sizeof(info->lti_key), DFID":%d",
+ PFID(lu_object_fid(&dto->do_lu)), i);
+
+ rc = lod_sub_delete(env, next,
+ (const struct dt_key *)stripe_name, th);
+ if (rc)
+ break;
+
+ rc = lod_sub_ref_del(env, next, th);
+ if (rc)
+ break;
+ }
+
+ lod_striping_free(env, lod_dt_obj(dt));
+
+ RETURN(rc);
+}
+
+/**
+ * Implementation of dt_object_operations::do_declare_xattr_set.
+ *
+ * Used with regular (non-striped) objects. Basically it
+ * initializes the striping information and applies the
+ * change to all the stripes.
+ *
+ * \see dt_object_operations::do_declare_xattr_set() in the API description
+ * for details.
+ */
+static int lod_dir_declare_xattr_set(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_buf *buf,
+ const char *name, int fl,
+ struct thandle *th)
+{
+ struct dt_object *next = dt_object_child(dt);
+ struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
+ struct lod_object *lo = lod_dt_obj(dt);
+ int i;
+ int rc;
+ ENTRY;
+
+ if (strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0) {
+ struct lmv_user_md_v1 *lum;
+
+ LASSERT(buf != NULL && buf->lb_buf != NULL);
+ lum = buf->lb_buf;
+ rc = lod_verify_md_striping(d, lum);
+ if (rc != 0)
+ RETURN(rc);
+ } else if (strcmp(name, XATTR_NAME_LOV) == 0) {
+ rc = lod_verify_striping(d, lo, buf, false);
+ if (rc != 0)
+ RETURN(rc);
+ }
+
+ rc = lod_sub_declare_xattr_set(env, next, buf, name, fl, th);
+ if (rc != 0)
+ RETURN(rc);
+
+ /* Note: Do not set LinkEA on sub-stripes, otherwise
+ * it will confuse the fid2path process(see mdt_path_current()).
+ * The linkEA between master and sub-stripes is set in
+ * lod_xattr_set_lmv(). */
+ if (strcmp(name, XATTR_NAME_LINK) == 0)
+ RETURN(0);
+
+ /* set xattr to each stripes, if needed */
+ rc = lod_striping_load(env, lo);
+ if (rc != 0)
+ RETURN(rc);
+
+ if (lo->ldo_dir_stripe_count == 0)
+ RETURN(0);
+
+ for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
+ if (!lo->ldo_stripe[i])
+ continue;
+
+ if (!dt_object_exists(lo->ldo_stripe[i]))
+ continue;
+
+ rc = lod_sub_declare_xattr_set(env, lo->ldo_stripe[i],
+ buf, name, fl, th);
+ if (rc != 0)
+ break;
+ }
+
+ RETURN(rc);
+}
+
+static int
+lod_obj_stripe_replace_parent_fid_cb(const struct lu_env *env,
+ struct lod_object *lo,
+ struct dt_object *dt, struct thandle *th,
+ int comp_idx, int stripe_idx,
+ struct lod_obj_stripe_cb_data *data)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_layout_component *comp = &lo->ldo_comp_entries[comp_idx];
+ struct filter_fid *ff = &info->lti_ff;
+ struct lu_buf *buf = &info->lti_buf;
+ int rc;
+
+ buf->lb_buf = ff;
+ buf->lb_len = sizeof(*ff);
+ rc = dt_xattr_get(env, dt, buf, XATTR_NAME_FID);
+ if (rc < 0) {
+ if (rc == -ENODATA)
+ return 0;
+ return rc;
+ }
+
+ /*
+ * locd_buf is set if it's called by dir migration, which doesn't check
+ * pfid and comp id.
+ */
+ if (data->locd_buf) {
+ memset(ff, 0, sizeof(*ff));
+ ff->ff_parent = *(struct lu_fid *)data->locd_buf->lb_buf;
+ } else {
+ filter_fid_le_to_cpu(ff, ff, sizeof(*ff));
+
+ if (lu_fid_eq(lod_object_fid(lo), &ff->ff_parent) &&
+ ff->ff_layout.ol_comp_id == comp->llc_id)
+ return 0;
+
+ memset(ff, 0, sizeof(*ff));
+ ff->ff_parent = *lu_object_fid(&lo->ldo_obj.do_lu);
+ }
+
+ /* rewrite filter_fid */
+ ff->ff_parent.f_ver = stripe_idx;
+ ff->ff_layout.ol_stripe_size = comp->llc_stripe_size;
+ ff->ff_layout.ol_stripe_count = comp->llc_stripe_count;
+ ff->ff_layout.ol_comp_id = comp->llc_id;
+ ff->ff_layout.ol_comp_start = comp->llc_extent.e_start;
+ ff->ff_layout.ol_comp_end = comp->llc_extent.e_end;
+ filter_fid_cpu_to_le(ff, ff, sizeof(*ff));
+
+ if (data->locd_declare)
+ rc = lod_sub_declare_xattr_set(env, dt, buf, XATTR_NAME_FID,
+ LU_XATTR_REPLACE, th);
+ else
+ rc = lod_sub_xattr_set(env, dt, buf, XATTR_NAME_FID,
+ LU_XATTR_REPLACE, th);
+
+ return rc;
+}
+
+/**
* Reset parent FID on OST object
*
* Replace parent FID with @dt object FID, which is only called during migration
*/
static int lod_replace_parent_fid(const struct lu_env *env,
struct dt_object *dt,
+ const struct lu_buf *buf,
struct thandle *th, bool declare)
{
struct lod_object *lo = lod_dt_obj(dt);
struct lod_thread_info *info = lod_env_info(env);
- struct lu_buf *buf = &info->lti_buf;
struct filter_fid *ff;
struct lod_obj_stripe_cb_data data = { { 0 } };
int rc;
LASSERT(S_ISREG(dt->do_lu.lo_header->loh_attr));
/* set xattr to each stripes, if needed */
- rc = lod_load_striping(env, lo);
+ rc = lod_striping_load(env, lo);
if (rc != 0)
RETURN(rc);
RETURN(rc);
}
- buf->lb_buf = info->lti_ea_store;
- buf->lb_len = info->lti_ea_store_size;
-
data.locd_declare = declare;
data.locd_stripe_cb = lod_obj_stripe_replace_parent_fid_cb;
+ data.locd_buf = buf;
rc = lod_obj_for_each_stripe(env, lo, th, &data);
RETURN(rc);
else if ((__u16)-1 == entry->llc_stripe_count)
return lod->lod_desc.ld_tgt_count;
else
- return lod_get_stripe_count(lod, lo, entry->llc_stripe_count);
+ return lod_get_stripe_count(lod, lo,
+ entry->llc_stripe_count, false);
}
static int lod_comp_md_size(struct lod_object *lo, bool is_dir)
int magic, size = 0, i;
struct lod_layout_component *comp_entries;
__u16 comp_cnt;
- bool is_composite;
+ bool is_composite, is_foreign = false;
if (is_dir) {
comp_cnt = lo->ldo_def_striping->lds_def_comp_cnt;
comp_cnt = lo->ldo_comp_cnt;
comp_entries = lo->ldo_comp_entries;
is_composite = lo->ldo_is_composite;
+ is_foreign = lo->ldo_is_foreign;
}
+ if (is_foreign)
+ return lo->ldo_foreign_lov_size;
LASSERT(comp_cnt != 0 && comp_entries != NULL);
if (is_composite) {
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;
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;
+ bool neg = flags & LCME_FL_NEG;
if (flags & LCME_FL_INIT) {
if (changed)
- lod_object_free_striping(env, lo);
+ lod_striping_free(env, lo);
RETURN(-EINVAL);
}
+ flags &= ~(LCME_MIRROR_FLAGS | LCME_FL_NEG);
for (j = 0; j < lo->ldo_comp_cnt; j++) {
lod_comp = &lo->ldo_comp_entries[j];
- if (id != lod_comp->llc_id)
+
+ /* lfs only put one flag in each entry */
+ if ((flags && id != lod_comp->llc_id) ||
+ (mirror_flag && mirror_id_of(id) !=
+ mirror_id_of(lod_comp->llc_id)))
continue;
- if (flags & LCME_FL_NEG) {
- flags &= ~LCME_FL_NEG;
- lod_comp->llc_flags &= ~flags;
+ if (neg) {
+ if (flags)
+ lod_comp->llc_flags &= ~flags;
+ if (mirror_flag)
+ lod_comp->llc_flags &= ~mirror_flag;
} else {
- lod_comp->llc_flags |= flags;
+ if (flags)
+ lod_comp->llc_flags |= flags;
+ if (mirror_flag) {
+ lod_comp->llc_flags |= mirror_flag;
+ if (mirror_flag & LCME_FL_NOSYNC)
+ lod_comp->llc_timestamp =
+ ktime_get_real_seconds();
+ }
}
changed = true;
}
{
struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
struct lod_object *lo = lod_dt_obj(dt);
- struct dt_object *next = dt_object_child(&lo->ldo_obj);
char *op;
int rc, len = strlen(XATTR_LUSTRE_LOV);
ENTRY;
}
len++;
- dt_write_lock(env, next, 0);
- rc = lod_load_striping_locked(env, lo);
+ rc = lod_striping_load(env, lo);
if (rc)
GOTO(unlock, rc);
}
unlock:
if (rc)
- lod_object_free_striping(env, lo);
- dt_write_unlock(env, next);
+ lod_striping_free(env, lo);
RETURN(rc);
}
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 mirror_id = 0;
__u32 mirror_count;
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:
offset += le32_to_cpu(lcme->lcme_size);
- if (mirror_count == 1) {
- /* new mirrored file, create new mirror ID */
+ if (mirror_count == 1 &&
+ mirror_id_of(le32_to_cpu(lcme->lcme_id)) == 0) {
+ /* Add mirror from a non-flr file, create new mirror ID.
+ * Otherwise, keep existing mirror's component ID, used
+ * for mirror extension.
+ */
id = pflr_id(1, i + 1);
lcme->lcme_id = cpu_to_le32(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);
if ((le16_to_cpu(lcm->lcm_flags) & LCM_FL_FLR_MASK) == LCM_FL_NONE)
lcm->lcm_flags = cpu_to_le32(LCM_FL_RDONLY);
- LASSERT(dt_write_locked(env, dt_object_child(dt)));
- lod_object_free_striping(env, lo);
- rc = lod_parse_striping(env, lo, buf);
+ rc = lod_striping_reload(env, lo, buf);
if (rc)
GOTO(out, rc);
lod_obj_inc_layout_gen(lo);
lcm->lcm_layout_gen = cpu_to_le32(lo->ldo_layout_gen);
- lod_object_free_striping(env, lo);
- rc = lod_parse_striping(env, lo, mbuf);
+ rc = lod_striping_reload(env, lo, mbuf);
if (rc)
RETURN(rc);
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) {
- rc = lod_replace_parent_fid(env, dt, th, true);
+ rc = lod_replace_parent_fid(env, dt, buf, th, true);
} else {
rc = lod_sub_declare_xattr_set(env, next, buf, name, fl, th);
}
RETURN(0);
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_set(env, lo->ldo_stripe[i], buf, name,
fl, th);
lum = buf->lb_buf;
switch (lum->lmm_magic) {
+ case LOV_USER_MAGIC_SPECIFIC:
case LOV_USER_MAGIC_V3:
v3 = buf->lb_buf;
if (v3->lmm_pool_name[0] != '\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);
const char *name, int fl,
struct thandle *th)
{
- struct lmv_user_md_v1 *lum;
- int rc;
+ struct lmv_user_md_v1 *lum;
+ int rc;
+
ENTRY;
LASSERT(buf != NULL && buf->lb_buf != NULL);
lum = buf->lb_buf;
- CDEBUG(D_OTHER, "set default stripe_count # %u stripe_offset %d\n",
+ CDEBUG(D_INFO,
+ "set default stripe_count # %u stripe_offset %d hash %u\n",
le32_to_cpu(lum->lum_stripe_count),
- (int)le32_to_cpu(lum->lum_stripe_offset));
+ (int)le32_to_cpu(lum->lum_stripe_offset),
+ le32_to_cpu(lum->lum_hash_type));
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_magic) == LMV_USER_MAGIC &&
+ !(le32_to_cpu(lum->lum_hash_type) & LMV_HASH_FLAG_SPACE)) {
rc = lod_xattr_del_internal(env, dt, name, th);
if (rc == -ENODATA)
rc = 0;
/* The stripes are supposed to be allocated in declare phase,
* if there are no stripes being allocated, it will skip */
- if (lo->ldo_dir_stripe_count == 0)
+ if (lo->ldo_dir_stripe_count == 0) {
+ if (lo->ldo_dir_is_foreign) {
+ rc = lod_sub_xattr_set(env, dt_object_child(dt), buf,
+ XATTR_NAME_LMV, fl, th);
+ if (rc != 0)
+ RETURN(rc);
+ }
RETURN(0);
+ }
rc = dt_attr_get(env, dt_object_child(dt), attr);
if (rc != 0)
rec->rec_type = S_IFDIR;
for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
- struct dt_object *dto;
- char *stripe_name = info->lti_key;
- struct lu_name *sname;
- struct linkea_data ldata = { NULL };
- struct lu_buf linkea_buf;
+ struct dt_object *dto = lo->ldo_stripe[i];
+ char *stripe_name = info->lti_key;
+ struct lu_name *sname;
+ struct linkea_data ldata = { NULL };
+ struct lu_buf linkea_buf;
+
+ /* OBD_FAIL_MDS_STRIPE_FID may leave stripe uninitialized */
+ if (!dto)
+ continue;
- dto = lo->ldo_stripe[i];
+ /* fail a remote stripe creation */
+ if (i && OBD_FAIL_CHECK(OBD_FAIL_MDS_STRIPE_CREATE))
+ continue;
- dt_write_lock(env, dto, MOR_TGT_CHILD);
- rc = lod_sub_create(env, dto, attr, NULL, dof, th);
- if (rc != 0) {
- dt_write_unlock(env, dto);
- GOTO(out, rc);
- }
+ /* 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, DT_TGT_CHILD);
+ rc = lod_sub_create(env, dto, attr, NULL, dof, th);
+ if (rc != 0) {
+ dt_write_unlock(env, dto);
+ GOTO(out, rc);
+ }
- rc = lod_sub_ref_add(env, dto, th);
- dt_write_unlock(env, dto);
- if (rc != 0)
- GOTO(out, rc);
+ rc = lod_sub_ref_add(env, dto, th);
+ dt_write_unlock(env, dto);
+ if (rc != 0)
+ GOTO(out, rc);
- rec->rec_fid = lu_object_fid(&dto->do_lu);
- rc = lod_sub_insert(env, dto, (const struct dt_rec *)rec,
- (const struct dt_key *)dot, th, 0);
- if (rc != 0)
- GOTO(out, rc);
+ rec->rec_fid = lu_object_fid(&dto->do_lu);
+ rc = lod_sub_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(&dt->do_lu);
rc = lod_sub_insert(env, dto, (struct dt_rec *)rec,
- (const struct dt_key *)dotdot, th, 0);
+ (const struct dt_key *)dotdot, th);
if (rc != 0)
GOTO(out, rc);
rec->rec_fid = lu_object_fid(&dto->do_lu);
rc = lod_sub_insert(env, dt_object_child(dt),
(const struct dt_rec *)rec,
- (const struct dt_key *)stripe_name, th, 0);
+ (const struct dt_key *)stripe_name, th);
if (rc != 0)
GOTO(out, rc);
th);
if (rc != 0)
RETURN(rc);
+ } else {
+ /* foreign LMV EA case */
+ if (lmu) {
+ struct lmv_foreign_md *lfm = lmu->lb_buf;
+
+ if (lfm->lfm_magic == LMV_MAGIC_FOREIGN) {
+ rc = lod_declare_xattr_set_lmv(env, dt, attr,
+ lmu, dof, th);
+ }
+ } else {
+ if (lo->ldo_dir_is_foreign) {
+ LASSERT(lo->ldo_foreign_lmv != NULL &&
+ lo->ldo_foreign_lmv_size > 0);
+ info->lti_buf.lb_buf = lo->ldo_foreign_lmv;
+ info->lti_buf.lb_len = lo->ldo_foreign_lmv_size;
+ lmu = &info->lti_buf;
+ rc = lod_xattr_set_lmv(env, dt, lmu,
+ XATTR_NAME_LMV, 0, th);
+ }
+ }
}
/* Transfer default LMV striping from the parent */
if (lds != NULL && lds->lds_dir_def_striping_set &&
- !LMVEA_DELETE_VALUES(lds->lds_dir_def_stripe_count,
- lds->lds_dir_def_stripe_offset)) {
+ !(LMVEA_DELETE_VALUES(lds->lds_dir_def_stripe_count,
+ lds->lds_dir_def_stripe_offset) &&
+ le32_to_cpu(lds->lds_dir_def_hash_type) !=
+ LMV_HASH_TYPE_UNKNOWN)) {
struct lmv_user_md_v1 *v1 = info->lti_ea_store;
if (info->lti_ea_store_size < sizeof(*v1)) {
LASSERT(lo);
- if (lo->ldo_comp_cnt == 0) {
- lod_object_free_striping(env, lo);
+ if (lo->ldo_comp_cnt == 0 && !lo->ldo_is_foreign) {
+ lod_striping_free(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;
+
+ lod_comp = &lo->ldo_comp_entries[index];
+ LASSERT(lod_comp_inited(lod_comp) && lod_comp->llc_id != LCME_ID_INVAL);
+
+ CDEBUG(D_LAYOUT, "repeating component %d\n", index);
+
+ OBD_ALLOC(comp_array, sizeof(*comp_array) * new_cnt);
+ if (comp_array == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ 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;
+ }
+ }
+
+ /* 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_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 (new_comp->llc_ostlist.op_array) {
+ __u32 *op_array = NULL;
+
+ 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;
+ }
+
+ OBD_FREE(lo->ldo_comp_entries,
+ sizeof(*comp_array) * lo->ldo_comp_cnt);
+ lo->ldo_comp_entries = comp_array;
+ lo->ldo_comp_cnt = new_cnt;
+
+ /* 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);
+
+ EXIT;
+out:
+ if (rc)
+ OBD_FREE(comp_array, sizeof(*comp_array) * new_cnt);
+
+ return rc;
+}
+
+static int lod_layout_data_init(struct lod_thread_info *info, __u32 comp_cnt)
+{
+ 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;
+
+ if (info->lti_comp_size >= comp_cnt)
+ RETURN(0);
+
+ if (info->lti_comp_size > 0) {
+ OBD_FREE(info->lti_comp_idx,
+ info->lti_comp_size * sizeof(__u32));
+ info->lti_comp_size = 0;
+ }
+
+ OBD_ALLOC(info->lti_comp_idx, comp_cnt * sizeof(__u32));
+ 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);
- left = lo->ldo_comp_cnt;
- for (i = (lo->ldo_comp_cnt - 1); i >= 0; i--) {
+ 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)
- break;
- left--;
+ if (lod_comp->llc_id != LCME_ID_INVAL) {
+ /* Build array of things to keep */
+ info->lti_comp_idx[info->lti_count++] = i;
+ continue;
+ }
- /* Not instantiated component */
+ 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;
if (obj == NULL)
continue;
- rc = lod_sub_destroy(env, obj, th);
- if (rc)
- GOTO(out, rc);
+
+ /* 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(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;
- 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;
- }
}
- LASSERTF(left >= 0 && left < lo->ldo_comp_cnt, "left = %d\n", left);
- if (left > 0) {
- struct lod_layout_component *comp_array;
+ /* 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);
- OBD_ALLOC(comp_array, sizeof(*comp_array) * left);
+ if (info->lti_count > 0) {
+ struct lod_layout_component *comp_array;
+
+ OBD_ALLOC(comp_array, sizeof(*comp_array) * info->lti_count);
if (comp_array == NULL)
GOTO(out, rc = -ENOMEM);
- memcpy(&comp_array[0], &lo->ldo_comp_entries[0],
- sizeof(*comp_array) * left);
+ 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(lo->ldo_comp_entries,
sizeof(*comp_array) * lo->ldo_comp_cnt);
lo->ldo_comp_entries = comp_array;
- lo->ldo_comp_cnt = left;
-
- LASSERT(lo->ldo_mirror_count == 1);
- lo->ldo_mirrors[0].lme_end = left - 1;
- lod_obj_inc_layout_gen(lo);
+ 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);
+
+ 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)
EXIT;
out:
if (rc)
- lod_object_free_striping(env, lo);
+ lod_striping_free(env, lo);
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.
*
if (S_ISDIR(dt->do_lu.lo_header->loh_attr) &&
strcmp(name, XATTR_NAME_LMV) == 0) {
- struct lmv_mds_md_v1 *lmm = buf->lb_buf;
+ 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;
- if (lmm != NULL && le32_to_cpu(lmm->lmv_hash_type) &
- LMV_HASH_FLAG_MIGRATION)
- rc = lod_sub_xattr_set(env, next, buf, name, fl, th);
- else
- rc = lod_dir_striping_create(env, dt, NULL, NULL, th);
+ 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);
RETURN(rc);
- }
-
- if (S_ISDIR(dt->do_lu.lo_header->loh_attr) &&
+ } else if (S_ISDIR(dt->do_lu.lo_header->loh_attr) &&
strcmp(name, XATTR_NAME_LOV) == 0) {
- struct lod_thread_info *info = lod_env_info(env);
- struct lod_default_striping *lds = &info->lti_def_striping;
+ 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);
* defines striping, then create() does the work */
if (fl & LU_XATTR_REPLACE) {
/* free stripes, then update disk */
- lod_object_free_striping(env, lod_dt_obj(dt));
+ lod_striping_free(env, lod_dt_obj(dt));
rc = lod_sub_xattr_set(env, next, buf, name, fl, th);
} else if (dt_object_remote(dt)) {
}
RETURN(rc);
} else if (strcmp(name, XATTR_NAME_FID) == 0) {
- rc = lod_replace_parent_fid(env, dt, th, false);
+ rc = lod_replace_parent_fid(env, dt, buf, th, false);
RETURN(rc);
}
struct dt_object *dt, const char *name,
struct thandle *th)
{
- struct lod_object *lo = lod_dt_obj(dt);
- int rc;
- int i;
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next = dt_object_child(dt);
+ int i;
+ int rc;
ENTRY;
- rc = lod_sub_declare_xattr_del(env, dt_object_child(dt), name, th);
+ rc = lod_sub_declare_xattr_del(env, next, name, th);
if (rc != 0)
RETURN(rc);
if (!S_ISDIR(dt->do_lu.lo_header->loh_attr))
RETURN(0);
- /* set xattr to each stripes, if needed */
- rc = lod_load_striping(env, lo);
+ /* 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);
RETURN(0);
for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
- LASSERT(lo->ldo_stripe[i]);
- rc = lod_sub_declare_xattr_del(env, lo->ldo_stripe[i],
- name, th);
+ struct dt_object *dto = lo->ldo_stripe[i];
+
+ if (!dto)
+ continue;
+
+ rc = lod_sub_declare_xattr_del(env, dto, name, th);
if (rc != 0)
break;
}
int i;
ENTRY;
- if (!strcmp(name, XATTR_NAME_LOV))
- lod_object_free_striping(env, lod_dt_obj(dt));
+ if (!strcmp(name, XATTR_NAME_LOV) || !strcmp(name, XATTR_NAME_LMV))
+ lod_striping_free(env, lod_dt_obj(dt));
rc = lod_sub_xattr_del(env, next, name, th);
if (rc != 0 || !S_ISDIR(dt->do_lu.lo_header->loh_attr))
RETURN(rc);
+ if (!strcmp(name, XATTR_NAME_LMV))
+ RETURN(0);
+
if (lo->ldo_dir_stripe_count == 0)
RETURN(0);
for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
- LASSERT(lo->ldo_stripe[i]);
+ struct dt_object *dto = lo->ldo_stripe[i];
- rc = lod_sub_xattr_del(env, lo->ldo_stripe[i], name, th);
+ if (!dto)
+ continue;
+
+ rc = lod_sub_xattr_del(env, dto, name, th);
if (rc != 0)
break;
}
return (is_reg && fid_seq(fid) != FID_SEQ_LOCAL_FILE);
}
+/**
+ * Copy OST list from layout provided by user.
+ *
+ * \param[in] lod_comp layout_component to be filled
+ * \param[in] v3 LOV EA V3 user data
+ *
+ * \retval 0 on success
+ * \retval negative if failed
+ */
+int lod_comp_copy_ost_lists(struct lod_layout_component *lod_comp,
+ struct lov_user_md_v3 *v3)
+{
+ int j;
+
+ ENTRY;
+
+ if (v3->lmm_stripe_offset == LOV_OFFSET_DEFAULT)
+ v3->lmm_stripe_offset = v3->lmm_objects[0].l_ost_idx;
+
+ if (lod_comp->llc_ostlist.op_array) {
+ if (lod_comp->llc_ostlist.op_size >=
+ v3->lmm_stripe_count * sizeof(__u32)) {
+ lod_comp->llc_ostlist.op_count =
+ v3->lmm_stripe_count;
+ goto skip;
+ }
+ OBD_FREE(lod_comp->llc_ostlist.op_array,
+ lod_comp->llc_ostlist.op_size);
+ }
+
+ /* copy ost list from lmm */
+ lod_comp->llc_ostlist.op_count = v3->lmm_stripe_count;
+ lod_comp->llc_ostlist.op_size = v3->lmm_stripe_count * sizeof(__u32);
+ OBD_ALLOC(lod_comp->llc_ostlist.op_array,
+ lod_comp->llc_ostlist.op_size);
+ if (!lod_comp->llc_ostlist.op_array)
+ RETURN(-ENOMEM);
+skip:
+ for (j = 0; j < v3->lmm_stripe_count; j++) {
+ lod_comp->llc_ostlist.op_array[j] =
+ v3->lmm_objects[j].l_ost_idx;
+ }
+
+ RETURN(0);
+}
+
/**
* Get default striping.
*/
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;
struct lov_user_md_v3 *v3 = NULL;
struct lov_comp_md_v1 *comp_v1 = NULL;
- __u16 comp_cnt;
- __u16 mirror_cnt;
- bool composite;
- int rc, i;
- ENTRY;
+ __u16 comp_cnt;
+ __u16 mirror_cnt;
+ bool composite;
+ int rc, i, j;
- lds->lds_def_striping_set = 0;
+ ENTRY;
rc = lod_get_lov_ea(env, lo);
if (rc < 0)
} else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V3)) {
v3 = (struct lov_user_md_v3 *)v1;
lustre_swab_lov_user_md_v3(v3);
- } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_COMP_V1)) {
+ } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_SPECIFIC)) {
+ v3 = (struct lov_user_md_v3 *)v1;
+ 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) ||
+ 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_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)
for (i = 0; i < comp_cnt; i++) {
struct lod_layout_component *lod_comp;
- struct lu_extent *ext;
char *pool;
lod_comp = &lds->lds_def_comp_entries[i];
if (composite) {
v1 = (struct lov_user_md *)((char *)comp_v1 +
comp_v1->lcm_entries[i].lcme_offset);
- ext = &comp_v1->lcm_entries[i].lcme_extent;
- lod_comp->llc_extent = *ext;
+ lod_comp->llc_extent =
+ comp_v1->lcm_entries[i].lcme_extent;
+ /* We only inherit certain flags from the layout */
+ lod_comp->llc_flags =
+ comp_v1->lcm_entries[i].lcme_flags &
+ LCME_TEMPLATE_FLAGS;
}
- if (v1->lmm_pattern != LOV_PATTERN_RAID0 &&
- v1->lmm_pattern != LOV_PATTERN_MDT &&
- v1->lmm_pattern != 0) {
+ if (!lov_pattern_supported(v1->lmm_pattern) &&
+ !(v1->lmm_pattern & LOV_PATTERN_F_RELEASED)) {
lod_free_def_comp_entries(lds);
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')
pool = v3->lmm_pool_name;
}
lod_set_def_pool(lds, i, pool);
+ if (v1->lmm_magic == LOV_USER_MAGIC_SPECIFIC) {
+ v3 = (struct lov_user_md_v3 *)v1;
+ rc = lod_comp_copy_ost_lists(lod_comp, v3);
+ if (rc)
+ RETURN(rc);
+ } else if (lod_comp->llc_ostlist.op_array &&
+ lod_comp->llc_ostlist.op_count) {
+ for (j = 0; j < lod_comp->llc_ostlist.op_count; j++)
+ lod_comp->llc_ostlist.op_array[j] = -1;
+ lod_comp->llc_ostlist.op_count = 0;
+ }
}
lds->lds_def_striping_set = 1;
struct lod_object *lo,
struct lod_default_striping *lds)
{
- struct lod_thread_info *info = lod_env_info(env);
- struct lmv_user_md_v1 *v1 = NULL;
- int rc;
- ENTRY;
+ struct lmv_user_md *lmu;
+ int rc;
lds->lds_dir_def_striping_set = 0;
+
rc = lod_get_default_lmv_ea(env, lo);
if (rc < 0)
- RETURN(rc);
+ return rc;
- if (rc < (typeof(rc))sizeof(struct lmv_user_md))
- RETURN(0);
+ if (rc >= (int)sizeof(*lmu)) {
+ struct lod_thread_info *info = lod_env_info(env);
- v1 = info->lti_ea_store;
+ lmu = info->lti_ea_store;
- lds->lds_dir_def_stripe_count = le32_to_cpu(v1->lum_stripe_count);
- lds->lds_dir_def_stripe_offset = le32_to_cpu(v1->lum_stripe_offset);
- lds->lds_dir_def_hash_type = le32_to_cpu(v1->lum_hash_type);
- lds->lds_dir_def_striping_set = 1;
+ lds->lds_dir_def_stripe_count =
+ le32_to_cpu(lmu->lum_stripe_count);
+ lds->lds_dir_def_stripe_offset =
+ le32_to_cpu(lmu->lum_stripe_offset);
+ lds->lds_dir_def_hash_type =
+ le32_to_cpu(lmu->lum_hash_type);
+ lds->lds_dir_def_striping_set = 1;
+ }
- RETURN(0);
+ return 0;
}
/**
{
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;
struct lod_layout_component *def_comp =
&lds->lds_def_comp_entries[i];
- CDEBUG(D_LAYOUT, "Inherite from default: size:%hu "
- "nr:%u offset:%u pattern %#x %s\n",
+ CDEBUG(D_LAYOUT, "Inherit from default: flags=%#x "
+ "size=%hu nr=%u offset=%u pattern=%#x pool=%s\n",
+ def_comp->llc_flags,
def_comp->llc_stripe_size,
def_comp->llc_stripe_count,
def_comp->llc_stripe_offset,
lod_obj_set_pool(lo, i, def_comp->llc_pool);
}
+ /* copy ost list */
+ if (def_comp->llc_ostlist.op_array &&
+ def_comp->llc_ostlist.op_count) {
+ OBD_ALLOC(obj_comp->llc_ostlist.op_array,
+ obj_comp->llc_ostlist.op_size);
+ if (!obj_comp->llc_ostlist.op_array)
+ return;
+ memcpy(obj_comp->llc_ostlist.op_array,
+ def_comp->llc_ostlist.op_array,
+ obj_comp->llc_ostlist.op_size);
+ } else if (def_comp->llc_ostlist.op_array) {
+ obj_comp->llc_ostlist.op_array = NULL;
+ }
+
/*
* Don't initialize these fields for plain layout
* (v1/v3) here, they are inherited in the order of
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)
lo->ldo_dir_stripe_offset =
lds->lds_dir_def_stripe_offset;
if (lo->ldo_dir_hash_type == 0)
- lo->ldo_dir_hash_type = lds->lds_dir_def_hash_type;
+ lo->ldo_dir_hash_type = lds->lds_dir_def_hash_type &
+ ~LMV_HASH_FLAG_SPACE;
CDEBUG(D_LAYOUT, "striping from default dir: count:%hu, "
"offset:%u, hash_type:%u\n",
}
}
-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;
}
{
struct lod_device *d = lu2lod_dev(child->do_lu.lo_dev);
struct lod_thread_info *info = lod_env_info(env);
- struct lod_default_striping *lds = &info->lti_def_striping;
+ struct lod_default_striping *lds = lod_lds_buf_get(env);
struct dt_object *nextp = NULL;
struct dt_object *nextc;
struct lod_object *lp = NULL;
LASSERT(child);
+ if (ah->dah_append_stripes == -1)
+ ah->dah_append_stripes = d->lod_desc.ld_tgt_count;
+
if (likely(parent)) {
nextp = dt_object_child(parent);
lp = lod_dt_obj(parent);
/* other default values are 0 */
lc->ldo_dir_stripe_offset = -1;
- /* get default striping from parent object */
- if (likely(lp != NULL))
+ /* no default striping configuration is needed for
+ * foreign dirs
+ */
+ if (ah->dah_eadata != NULL && ah->dah_eadata_len != 0 &&
+ le32_to_cpu(lum1->lum_magic) == LMV_MAGIC_FOREIGN) {
+ lc->ldo_dir_is_foreign = true;
+ /* keep stripe_count 0 and stripe_offset -1 */
+ CDEBUG(D_INFO, "no default striping for foreign dir\n");
+ RETURN_EXIT;
+ }
+
+ /*
+ * 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)))
lod_get_default_striping(env, lp, lds);
/* set child default striping info, default value is NULL */
} else {
/* transfer defaults LMV to new directory */
lod_striping_from_default(lc, lds, child_mode);
+
+ /* set count 0 to create normal directory */
+ if (lc->ldo_dir_stripe_count == 1)
+ lc->ldo_dir_stripe_count = 0;
}
/* shrink the stripe_count to the avaible MDT count */
if (lc->ldo_dir_stripe_count > d->lod_remote_mdt_count + 1 &&
- !OBD_FAIL_CHECK(OBD_FAIL_LARGE_STRIPE))
+ !OBD_FAIL_CHECK(OBD_FAIL_LARGE_STRIPE)) {
lc->ldo_dir_stripe_count = d->lod_remote_mdt_count + 1;
-
- /* Directory will be striped only if stripe_count > 1, if
- * stripe_count == 1, let's reset stripe_count = 0 to avoid
- * create single master stripe and also help to unify the
- * stripe handling of directories and files */
- if (lc->ldo_dir_stripe_count == 1)
- lc->ldo_dir_stripe_count = 0;
+ if (lc->ldo_dir_stripe_count == 1)
+ lc->ldo_dir_stripe_count = 0;
+ }
CDEBUG(D_INFO, "final dir stripe [%hu %d %u]\n",
lc->ldo_dir_stripe_count,
* Try from the parent first.
*/
if (likely(lp != NULL)) {
- rc = lod_get_default_lov_striping(env, lp, lds);
+ rc = lod_get_default_lov_striping(env, lp, lds, ah);
if (rc == 0)
lod_striping_from_default(lc, lds, child_mode);
}
* - 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)
goto out;
if (lc->ldo_comp_cnt == 0) {
if (lod_comp->llc_stripe_size <= 0)
lod_comp->llc_stripe_size =
def_comp->llc_stripe_size;
- if (lod_comp->llc_stripe_offset == LOV_OFFSET_DEFAULT)
+ if (lod_comp->llc_stripe_offset == LOV_OFFSET_DEFAULT &&
+ (!lod_comp->llc_pool || !lod_comp->llc_pool[0]))
lod_comp->llc_stripe_offset =
def_comp->llc_stripe_offset;
if (lod_comp->llc_pool == NULL)
* 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);
+ 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;
/* failed to create striping or to set initial size, let's reset
* config so that others don't get confused */
if (rc)
- lod_object_free_striping(env, lo);
+ lod_striping_free(env, lo);
RETURN(rc);
}
+/*
+ * 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;
+
+ obj = lu_object_find_slice(env, dev, lu_object_fid(&dt->do_lu), NULL);
+ if (IS_ERR(obj))
+ return PTR_ERR(obj);
+
+ lo = lu2lod_obj(obj);
+
+ rc = lod_get_default_lmv_ea(env, lo);
+ dt_object_put(env, dt);
+ if (rc <= 0)
+ return rc;
+
+ if (rc < (int)sizeof(*lmu))
+ return -EINVAL;
+
+ lmu = info->lti_ea_store;
+ return !!(le32_to_cpu(lmu->lum_hash_type) & LMV_HASH_FLAG_SPACE);
+}
+
/**
* Implementation of dt_object_operations::do_declare_create.
*
GOTO(out, rc = -EREMOTE);
if (lo->ldo_dir_stripe_offset == -1) {
- /* child and parent should be in the same MDT */
- if (hint->dah_parent != NULL &&
- dt_object_remote(hint->dah_parent))
- GOTO(out, rc = -EREMOTE);
+ /*
+ * 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_qos_mkdir(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) {
struct lod_device *lod;
struct lod_tgt_descs *ltd;
struct lod_tgt_desc *tgt = 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);
+ ltd_foreach_tgt(ltd, tgt) {
if (tgt->ltd_index ==
lo->ldo_dir_stripe_offset) {
found_mdt = true;
/* failed to create striping or to set initial size, let's reset
* config so that others don't get confused */
if (rc)
- lod_object_free_striping(env, lo);
+ lod_striping_free(env, lo);
RETURN(rc);
}
int rc = 0, i, j;
ENTRY;
- LASSERT(lo->ldo_comp_cnt != 0 && lo->ldo_comp_entries != NULL);
+ LASSERT((lo->ldo_comp_cnt != 0 && lo->ldo_comp_entries != NULL) ||
+ lo->ldo_is_foreign);
- mirror_id = lo->ldo_mirror_count > 1 ? 1 : 0;
+ mirror_id = 0; /* non-flr file's mirror_id is 0 */
+ if (lo->ldo_mirror_count > 1) {
+ for (i = 0; i < lo->ldo_comp_cnt; i++) {
+ lod_comp = &lo->ldo_comp_entries[i];
+ if (lod_comp->llc_id != LCME_ID_INVAL &&
+ mirror_id_of(lod_comp->llc_id) > mirror_id)
+ mirror_id = mirror_id_of(lod_comp->llc_id);
+ }
+ }
/* create all underlying objects */
for (i = 0; i < lo->ldo_comp_cnt; i++) {
lod_comp = &lo->ldo_comp_entries[i];
- if (lod_comp->llc_extent.e_start == 0 && i > 0) /* new mirror */
- ++mirror_id;
-
if (lod_comp->llc_id == LCME_ID_INVAL) {
+ /* only the component of FLR layout with more than 1
+ * mirror has mirror ID in its component ID.
+ */
+ if (lod_comp->llc_extent.e_start == 0 &&
+ lo->ldo_mirror_count > 1)
+ ++mirror_id;
+
lod_comp->llc_id = lod_gen_component_id(lo,
mirror_id, i);
if (lod_comp->llc_id == LCME_ID_INVAL)
RETURN(0);
out:
- lod_object_free_striping(env, lo);
+ lod_striping_free(env, lo);
RETURN(rc);
}
+static inline bool lod_obj_is_dom(struct dt_object *dt)
+{
+ struct lod_object *lo = lod_dt_obj(dt);
+
+ if (!dt_object_exists(dt_object_child(dt)))
+ return false;
+
+ if (S_ISDIR(dt->do_lu.lo_header->loh_attr))
+ return false;
+
+ if (!lo->ldo_comp_cnt)
+ return false;
+
+ return (lov_pattern(lo->ldo_comp_entries[0].llc_pattern) ==
+ LOV_PATTERN_MDT);
+}
+
/**
* Implementation of dt_object_operations::do_create.
*
RETURN(rc);
if (S_ISREG(dt->do_lu.lo_header->loh_attr) &&
- lod_obj_is_striped(dt) && dof->u.dof_reg.striped != 0) {
+ (lod_obj_is_striped(dt) || lod_obj_is_dom(dt)) &&
+ dof->u.dof_reg.striped != 0) {
LASSERT(lod_dt_obj(dt)->ldo_comp_cached == 0);
rc = lod_striped_create(env, dt, attr, dof, th);
}
static int lod_declare_destroy(const struct lu_env *env, struct dt_object *dt,
struct thandle *th)
{
- struct dt_object *next = dt_object_child(dt);
- struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next = dt_object_child(dt);
+ struct lod_object *lo = lod_dt_obj(dt);
struct lod_thread_info *info = lod_env_info(env);
- char *stripe_name = info->lti_key;
- int rc, i;
+ struct dt_object *stripe;
+ char *stripe_name = info->lti_key;
+ int rc, i;
+
ENTRY;
/*
* is being initialized as we don't need this information till
* few specific cases like destroy, chown
*/
- rc = lod_load_striping(env, lo);
+ rc = lod_striping_load(env, lo);
if (rc)
RETURN(rc);
RETURN(rc);
for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
+ stripe = lo->ldo_stripe[i];
+ if (!stripe)
+ continue;
+
rc = lod_sub_declare_ref_del(env, next, th);
if (rc != 0)
RETURN(rc);
- snprintf(stripe_name, sizeof(info->lti_key), DFID":%d",
- PFID(lu_object_fid(&lo->ldo_stripe[i]->do_lu)),
- i);
+ snprintf(stripe_name, sizeof(info->lti_key),
+ DFID":%d",
+ PFID(lu_object_fid(&stripe->do_lu)), i);
rc = lod_sub_declare_delete(env, next,
(const struct dt_key *)stripe_name, th);
if (rc != 0)
/* declare destroy all striped objects */
if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
- if (lo->ldo_stripe[i] == NULL)
+ stripe = lo->ldo_stripe[i];
+ if (!stripe)
continue;
- rc = lod_sub_declare_ref_del(env, lo->ldo_stripe[i],
- th);
+ if (!dt_object_exists(stripe))
+ continue;
- rc = lod_sub_declare_destroy(env, lo->ldo_stripe[i],
- th);
+ rc = lod_sub_declare_ref_del(env, stripe, th);
+ if (rc != 0)
+ break;
+
+ rc = lod_sub_declare_destroy(env, stripe, th);
if (rc != 0)
break;
}
struct dt_object *next = dt_object_child(dt);
struct lod_object *lo = lod_dt_obj(dt);
struct lod_thread_info *info = lod_env_info(env);
- char *stripe_name = info->lti_key;
- unsigned int i;
- int rc;
+ char *stripe_name = info->lti_key;
+ struct dt_object *stripe;
+ unsigned int i;
+ int rc;
+
ENTRY;
/* destroy sub-stripe of master object */
RETURN(rc);
for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
+ stripe = lo->ldo_stripe[i];
+ if (!stripe)
+ continue;
+
rc = lod_sub_ref_del(env, next, th);
if (rc != 0)
RETURN(rc);
snprintf(stripe_name, sizeof(info->lti_key), DFID":%d",
- PFID(lu_object_fid(&lo->ldo_stripe[i]->do_lu)),
- i);
+ PFID(lu_object_fid(&stripe->do_lu)), i);
CDEBUG(D_INFO, DFID" delete stripe %s "DFID"\n",
PFID(lu_object_fid(&dt->do_lu)), stripe_name,
- PFID(lu_object_fid(&lo->ldo_stripe[i]->do_lu)));
+ PFID(lu_object_fid(&stripe->do_lu)));
rc = lod_sub_delete(env, next,
(const struct dt_key *)stripe_name, th);
/* destroy all striped objects */
if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
- if (lo->ldo_stripe[i] == NULL)
+ stripe = lo->ldo_stripe[i];
+ if (!stripe)
continue;
+
+ if (!dt_object_exists(stripe))
+ continue;
+
if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_SPEOBJ) ||
i == cfs_fail_val) {
- dt_write_lock(env, lo->ldo_stripe[i],
- MOR_TGT_CHILD);
- rc = lod_sub_ref_del(env, lo->ldo_stripe[i],
- th);
- dt_write_unlock(env, lo->ldo_stripe[i]);
+ dt_write_lock(env, stripe, DT_TGT_CHILD);
+ rc = lod_sub_ref_del(env, stripe, th);
+ dt_write_unlock(env, stripe);
if (rc != 0)
break;
- rc = lod_sub_destroy(env, lo->ldo_stripe[i],
- th);
+ rc = lod_sub_destroy(env, stripe, th);
if (rc != 0)
break;
}
RETURN(0);
LASSERT(S_ISDIR(dt->do_lu.lo_header->loh_attr));
- LASSERT(lo->ldo_dir_stripe_count > 1);
/* Note: for remote lock for single stripe dir, MDT will cancel
* the lock by lockh directly */
LASSERT(!dt_object_remote(dt_object_child(dt)));
* NB, ha_count may not equal to ldo_dir_stripe_count, because dir
* layout may change, e.g., shrink dir layout after migration.
*/
- for (i = 0; i < lo->ldo_dir_stripe_count; i++)
- dt_invalidate(env, lo->ldo_stripe[i]);
+ for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
+ if (lo->ldo_stripe[i])
+ dt_invalidate(env, lo->ldo_stripe[i]);
+ }
slave_locks_size = offsetof(typeof(*slave_locks),
ha_handles[slave_locks->ha_count]);
if (!S_ISDIR(dt->do_lu.lo_header->loh_attr))
RETURN(-ENOTDIR);
- rc = lod_load_striping(env, lo);
+ rc = lod_striping_load(env, lo);
if (rc != 0)
RETURN(rc);
for (i = 0; i < lo->ldo_dir_stripe_count; i++) {
struct lustre_handle lockh;
struct ldlm_res_id *res_id;
+ struct dt_object *stripe;
+
+ stripe = lo->ldo_stripe[i];
+ if (!stripe)
+ continue;
res_id = &lod_env_info(env)->lti_res_id;
- fid_build_reg_res_name(lu_object_fid(&lo->ldo_stripe[i]->do_lu),
- res_id);
+ fid_build_reg_res_name(lu_object_fid(&stripe->do_lu), res_id);
einfo->ei_res_id = res_id;
- LASSERT(lo->ldo_stripe[i] != NULL);
- if (dt_object_remote(lo->ldo_stripe[i])) {
+ if (dt_object_remote(stripe)) {
set_bit(i, (void *)slave_locks->ha_map);
- rc = dt_object_lock(env, lo->ldo_stripe[i], &lockh,
- einfo, policy);
+ rc = dt_object_lock(env, stripe, &lockh, einfo, policy);
} else {
struct ldlm_namespace *ns = einfo->ei_namespace;
ldlm_blocking_callback blocking = einfo->ei_cb_local_bl;
dlmflags |= LDLM_FL_COS_INCOMPAT;
LASSERT(ns != NULL);
- rc = ldlm_cli_enqueue_local(ns, res_id, LDLM_IBITS,
+ rc = ldlm_cli_enqueue_local(env, ns, res_id, LDLM_IBITS,
policy, einfo->ei_mode,
&dlmflags, blocking,
completion, NULL,
NULL, &lockh);
}
if (rc) {
- while (i--)
- ldlm_lock_decref_and_cancel(
- &slave_locks->ha_handles[i],
- einfo->ei_mode);
- OBD_FREE(slave_locks, slave_locks_size);
- RETURN(rc);
+ while (i--)
+ ldlm_lock_decref_and_cancel(
+ &slave_locks->ha_handles[i],
+ einfo->ei_mode);
+ OBD_FREE(slave_locks, slave_locks_size);
+ RETURN(rc);
+ }
+ slave_locks->ha_handles[i] = lockh;
+ }
+ einfo->ei_cbdata = slave_locks;
+
+ RETURN(0);
+}
+
+/**
+ * Implementation of dt_object_operations::do_invalidate.
+ *
+ * \see dt_object_operations::do_invalidate() in the API description for details
+ */
+static int lod_invalidate(const struct lu_env *env, struct dt_object *dt)
+{
+ return dt_invalidate(env, dt_object_child(dt));
+}
+
+static int lod_declare_instantiate_components(const struct lu_env *env,
+ struct lod_object *lo, struct thandle *th)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ int i;
+ int rc = 0;
+ ENTRY;
+
+ LASSERT(info->lti_count < lo->ldo_comp_cnt);
+
+ for (i = 0; i < info->lti_count; i++) {
+ rc = lod_qos_prep_create(env, lo, NULL, th,
+ info->lti_comp_idx[i]);
+ if (rc)
+ break;
+ }
+
+ 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);
+ }
+
+ RETURN(rc);
+}
+
+/**
+ * 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 extension_size,
+ struct lu_extent *extent,
+ struct lu_extent *comp_extent, int write)
+{
+ struct lod_layout_component *lod_comp = &lo->ldo_comp_entries[index];
+ struct lod_device *lod = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
+ struct obd_statfs *sfs = &lod_env_info(env)->lti_osfs;
+ __u64 available = 0;
+ __u64 size;
+ bool ret = true;
+ int i, rc;
+
+ ENTRY;
+
+ LASSERT(lod_comp->llc_stripe_count != 0);
+
+ if (write == 0 ||
+ (extent->e_start == 0 && extent->e_end == OBD_OBJECT_EOF)) {
+ /* truncate or append */
+ size = extension_size;
+ } else {
+ /* In case of write op, check the real write extent,
+ * it may be larger than the extension_size */
+ size = roundup(min(extent->e_end, comp_extent->e_end) -
+ max(extent->e_start, comp_extent->e_start),
+ extension_size);
+ }
+ /* extension_size is file level, so we must divide by stripe count to
+ * compare it to available space on a single OST */
+ size /= lod_comp->llc_stripe_count;
+
+ lod_getref(&lod->lod_ost_descs);
+ for (i = 0; i < lod_comp->llc_stripe_count; i++) {
+ int index = lod_comp->llc_ost_indices[i];
+ 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 (!cfs_bitmap_check(lod->lod_ost_bitmap, index)) {
+ CDEBUG(D_LAYOUT, "ost %d no longer present\n", index);
+ ret = false;
+ break;
+ }
+
+ rc = dt_statfs_info(env, ost->ltd_ost, 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_STATE_ENOSPC ||
+ sfs->os_state & OS_STATE_READONLY ||
+ sfs->os_state & OS_STATE_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 (size * repeated > available) {
+ ret = false;
+ CDEBUG(D_LAYOUT, "low space on ost %d, available %llu "
+ "< extension size %llu\n", index, available,
+ extension_size);
+ break;
}
- slave_locks->ha_handles[i] = lockh;
}
- einfo->ei_cbdata = slave_locks;
+ lod_putref(lod, &lod->lod_ost_descs);
- RETURN(0);
+ RETURN(ret);
}
/**
- * Implementation of dt_object_operations::do_invalidate.
+ * Adjust extents after component removal
*
- * \see dt_object_operations::do_invalidate() in the API description for details
+ * 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 int lod_invalidate(const struct lu_env *env, struct dt_object *dt)
+static void lod_sel_adjust_extents(const struct lu_env *env,
+ struct lod_object *lo,
+ int max_comp, int index)
{
- return dt_invalidate(env, dt_object_child(dt));
+ 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;
+ }
}
-static int lod_layout_data_init(struct lod_thread_info *info, __u32 comp_cnt)
+/* 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)
{
- ENTRY;
+ __u64 new_end;
- /* 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(extension_size != 0 && stripe_size != 0);
- if (info->lti_comp_size >= comp_cnt)
- RETURN(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);
+ }
- if (info->lti_comp_size > 0) {
- OBD_FREE(info->lti_comp_idx,
- info->lti_comp_size * sizeof(__u32));
- info->lti_comp_size = 0;
+ /* Overflow */
+ if (new_end < extent_end)
+ new_end = OBD_OBJECT_EOF;
}
- OBD_ALLOC(info->lti_comp_idx, comp_cnt * sizeof(__u32));
- if (!info->lti_comp_idx)
- RETURN(-ENOMEM);
+ /* Don't extend past the end of the extension component */
+ if (new_end > extension_end)
+ new_end = extension_end;
- info->lti_comp_size = comp_cnt;
- RETURN(0);
+ return new_end;
}
-static int lod_declare_instantiate_components(const struct lu_env *env,
- struct lod_object *lo, struct thandle *th)
+/* 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);
- struct ost_pool *inuse = &info->lti_inuse_osts;
- int i;
+ struct lod_layout_component *lod_comp;
+ struct lod_layout_component *prev;
+ struct lod_layout_component *next = NULL;
+ __u64 extension_size;
+ __u64 new_end = 0;
+ bool repeated;
+ int change = 0;
int rc = 0;
ENTRY;
- LASSERT(info->lti_count < lo->ldo_comp_cnt);
- if (info->lti_count > 0) {
- /* Prepare inuse array for composite file */
- rc = lod_prepare_inuse(env, lo);
- if (rc)
+ /* 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);
+ }
+
+ 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);
+ }
+
+ 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);
+ /* 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);
}
- for (i = 0; i < info->lti_count; i++) {
- rc = lod_qos_prep_create(env, lo, NULL, th,
- info->lti_comp_idx[i], inuse);
- if (rc)
+ if (sd->sd_force == 0 && rc == 0)
+ rc = !lod_sel_osts_allowed(env, lo, index - 1,
+ extension_size, 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;
GOTO(out, rc = -EINVAL);
}
- lod_object_free_striping(env, lo);
rc = lod_use_defined_striping(env, lo, buf);
if (rc)
GOTO(out, rc);
+ lo->ldo_comp_cached = 1;
rc = lod_get_lov_ea(env, lo);
if (rc <= 0)
/* 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_load_striping_locked(env, lo);
+ rc = lod_striping_load(env, lo);
if (rc)
GOTO(out, rc);
}
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);
+ EXIT;
out:
if (rc)
- lod_object_free_striping(env, lo);
- RETURN(rc);
+ lod_striping_free(env, lo);
+ return rc;
}
-#define lod_foreach_mirror_comp(comp, lo, mirror_idx) \
-for (comp = &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_start]; \
- comp <= &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_end]; \
- comp++)
-
static inline int lod_comp_index(struct lod_object *lo,
struct lod_layout_component *lod_comp)
{
/**
* 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_READONLY | OS_STATE_ENOSPC | OS_STATE_ENOINO |
+ OS_STATE_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);
RETURN(picked);
}
+static int lod_prepare_resync_mirror(const struct lu_env *env,
+ struct lod_object *lo,
+ __u16 mirror_id)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_layout_component *lod_comp;
+ bool neg = !!(MIRROR_ID_NEG & mirror_id);
+ int i;
+
+ mirror_id &= ~MIRROR_ID_NEG;
+
+ for (i = 0; i < lo->ldo_mirror_count; i++) {
+ if ((!neg && lo->ldo_mirrors[i].lme_id != mirror_id) ||
+ (neg && lo->ldo_mirrors[i].lme_id == mirror_id))
+ continue;
+
+ lod_foreach_mirror_comp(lod_comp, lo, i) {
+ if (lod_comp_inited(lod_comp))
+ continue;
+
+ info->lti_comp_idx[info->lti_count++] =
+ lod_comp_index(lo, lod_comp);
+ }
+ }
+
+ return 0;
+}
+
/**
* figure out the components should be instantiated for resync.
*/
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++] =
* prep uninited all components assuming any non-stale mirror
* could be picked as the primary mirror.
*/
- for (i = 0; i < lo->ldo_mirror_count; i++) {
- if (lo->ldo_mirrors[i].lme_stale)
- continue;
+ if (mlc->mlc_mirror_id == 0) {
+ /* normal resync */
+ for (i = 0; i < lo->ldo_mirror_count; i++) {
+ if (lo->ldo_mirrors[i].lme_stale)
+ continue;
- lod_foreach_mirror_comp(lod_comp, lo, i) {
- if (!lod_comp_inited(lod_comp))
- break;
+ lod_foreach_mirror_comp(lod_comp, lo, i) {
+ if (!lod_comp_inited(lod_comp))
+ break;
- if (extent.e_end < lod_comp->llc_extent.e_end)
- extent.e_end =
- lod_comp->llc_extent.e_end;
+ if (extent.e_end <
+ lod_comp->llc_extent.e_end)
+ extent.e_end =
+ lod_comp->llc_extent.e_end;
+ }
}
+ rc = lod_prepare_resync(env, lo, &extent);
+ if (rc)
+ GOTO(out, rc);
+ } else {
+ /* mirror write, try to init its all components */
+ rc = lod_prepare_resync_mirror(env, lo,
+ mlc->mlc_mirror_id);
+ if (rc)
+ GOTO(out, rc);
}
- rc = lod_prepare_resync(env, lo, &extent);
- if (rc)
- GOTO(out, rc);
/* change the file state to SYNC_PENDING */
lo->ldo_flr_state = LCM_FL_SYNC_PENDING;
}
if (lo->ldo_layout_gen > (LCME_ID_MAX >> 1)) {
__u32 layout_version;
- cfs_get_random_bytes(&layout_version, sizeof(layout_version));
+ get_random_bytes(&layout_version, sizeof(layout_version));
lo->ldo_layout_gen = layout_version & 0xffff;
}
out:
if (rc)
- lod_object_free_striping(env, lo);
+ lod_striping_free(env, lo);
RETURN(rc);
}
* 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",
lod_comp_index(lo, lod_comp);
}
} else { /* MD_LAYOUT_RESYNC */
- lod_foreach_mirror_comp(lod_comp, lo, primary) {
- if (!lod_comp_inited(lod_comp))
- break;
+ if (mlc->mlc_mirror_id == 0) {
+ /* normal resync */
+ lod_foreach_mirror_comp(lod_comp, lo, primary) {
+ if (!lod_comp_inited(lod_comp))
+ break;
- extent.e_end = lod_comp->llc_extent.e_end;
+ extent.e_end = lod_comp->llc_extent.e_end;
+ }
+
+ rc = lod_prepare_resync(env, lo, &extent);
+ if (rc)
+ GOTO(out, rc);
+ } else {
+ /* mirror write, try to init its all components */
+ rc = lod_prepare_resync_mirror(env, lo,
+ mlc->mlc_mirror_id);
+ if (rc)
+ GOTO(out, rc);
}
- rc = lod_prepare_resync(env, lo, &extent);
- if (rc)
- GOTO(out, rc);
/* change the file state to SYNC_PENDING */
lo->ldo_flr_state = LCM_FL_SYNC_PENDING;
}
lod_obj_inc_layout_gen(lo);
out:
if (rc)
- lod_object_free_striping(env, lo);
+ lod_striping_free(env, lo);
RETURN(rc);
}
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);
out:
if (rc)
- lod_object_free_striping(env, lo);
+ lod_striping_free(env, lo);
RETURN(rc);
}
dt_object_remote(dt_object_child(dt)))
RETURN(-EINVAL);
- lod_write_lock(env, dt, 0);
- rc = lod_load_striping_locked(env, lo);
+ rc = lod_striping_load(env, lo);
if (rc)
GOTO(out, rc);
break;
}
out:
- dt_write_unlock(env, dt);
RETURN(rc);
}
*/
static ssize_t lod_write(const struct lu_env *env, struct dt_object *dt,
const struct lu_buf *buf, loff_t *pos,
- struct thandle *th, int iq)
+ struct thandle *th)
{
LASSERT(S_ISREG(dt->do_lu.lo_header->loh_attr) ||
S_ISLNK(dt->do_lu.lo_header->loh_attr));
- return lod_sub_write(env, dt_object_child(dt), buf, pos, th, iq);
+ return lod_sub_write(env, dt_object_child(dt), buf, pos, th);
}
static int lod_declare_punch(const struct lu_env *env, struct dt_object *dt,
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) {
/**
*
+ * Alloc cached foreign LOV
+ *
+ * \param[in] lo object
+ * \param[in] size size of foreign LOV
+ *
+ * \retval 0 on success
+ * \retval negative if failed
+ */
+int lod_alloc_foreign_lov(struct lod_object *lo, size_t size)
+{
+ OBD_ALLOC_LARGE(lo->ldo_foreign_lov, size);
+ if (lo->ldo_foreign_lov == NULL)
+ return -ENOMEM;
+ lo->ldo_foreign_lov_size = size;
+ lo->ldo_is_foreign = 1;
+ return 0;
+}
+
+/**
+ *
+ * Free cached foreign LOV
+ *
+ * \param[in] lo object
+ */
+void lod_free_foreign_lov(struct lod_object *lo)
+{
+ if (lo->ldo_foreign_lov != NULL)
+ OBD_FREE_LARGE(lo->ldo_foreign_lov, lo->ldo_foreign_lov_size);
+ lo->ldo_foreign_lov = NULL;
+ lo->ldo_foreign_lov_size = 0;
+ lo->ldo_is_foreign = 0;
+}
+
+/**
+ *
+ * Free cached foreign LMV
+ *
+ * \param[in] lo object
+ */
+void lod_free_foreign_lmv(struct lod_object *lo)
+{
+ if (lo->ldo_foreign_lmv != NULL)
+ OBD_FREE_LARGE(lo->ldo_foreign_lmv, lo->ldo_foreign_lmv_size);
+ lo->ldo_foreign_lmv = NULL;
+ lo->ldo_foreign_lmv_size = 0;
+ lo->ldo_dir_is_foreign = 0;
+}
+
+/**
+ *
* Release resources associated with striping.
*
* If the object is striped (regular or directory), then release
* \param[in] env execution environment
* \param[in] lo object
*/
-void lod_object_free_striping(const struct lu_env *env, struct lod_object *lo)
+void lod_striping_free_nolock(const struct lu_env *env, struct lod_object *lo)
{
struct lod_layout_component *lod_comp;
int i, j;
- if (lo->ldo_stripe != NULL) {
+ if (unlikely(lo->ldo_is_foreign)) {
+ lod_free_foreign_lov(lo);
+ lo->ldo_comp_cached = 0;
+ } else if (unlikely(lo->ldo_dir_is_foreign)) {
+ lod_free_foreign_lmv(lo);
+ lo->ldo_dir_stripe_loaded = 0;
+ } else if (lo->ldo_stripe != NULL) {
LASSERT(lo->ldo_comp_entries == NULL);
LASSERT(lo->ldo_dir_stripes_allocated > 0);
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;
}
lod_free_comp_entries(lo);
}
}
+void lod_striping_free(const struct lu_env *env, struct lod_object *lo)
+{
+ mutex_lock(&lo->ldo_layout_mutex);
+ lod_striping_free_nolock(env, lo);
+ mutex_unlock(&lo->ldo_layout_mutex);
+}
+
/**
* Implementation of lu_object_operations::loo_object_free.
*
struct lod_object *lo = lu2lod_obj(o);
/* release all underlying object pinned */
- lod_object_free_striping(env, lo);
+ lod_striping_free(env, lo);
lu_object_fini(o);
OBD_SLAB_FREE_PTR(lo, lod_object_kmem);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff