ldlm_blocking_callback cb_blocking,
int extra_lock_flags);
+int lmv_getattr_name(struct obd_export *exp, struct md_op_data *op_data,
+ struct ptlrpc_request **preq);
+void lmv_activate_target(struct lmv_obd *lmv, struct lmv_tgt_desc *tgt,
+ int activate);
+
+int lmv_statfs_check_update(struct obd_device *obd, struct lmv_tgt_desc *tgt);
+
static inline struct obd_device *lmv2obd_dev(struct lmv_obd *lmv)
{
return container_of0(lmv, struct obd_device, u.lmv);
}
-static inline struct lmv_tgt_desc *
-lmv_get_target(struct lmv_obd *lmv, u32 mdt_idx, int *index)
+static inline struct lu_tgt_desc *
+lmv_tgt(struct lmv_obd *lmv, __u32 index)
{
- int i;
+ return index < lmv->lmv_mdt_descs.ltd_tgt_bitmap->size ?
+ LTD_TGT(&lmv->lmv_mdt_descs, index) : NULL;
+}
- for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
- if (lmv->tgts[i] == NULL)
- continue;
+static inline bool
+lmv_mdt0_inited(struct lmv_obd *lmv)
+{
+ return lmv->lmv_mdt_descs.ltd_tgt_bitmap->size > 0 &&
+ cfs_bitmap_check(lmv->lmv_mdt_descs.ltd_tgt_bitmap, 0);
+}
- if (lmv->tgts[i]->ltd_idx == mdt_idx) {
- if (index != NULL)
- *index = i;
- return lmv->tgts[i];
- }
- }
+#define lmv_foreach_tgt(lmv, tgt) ltd_foreach_tgt(&(lmv)->lmv_mdt_descs, tgt)
+
+#define lmv_foreach_tgt_safe(lmv, tgt, tmp) \
+ ltd_foreach_tgt_safe(&(lmv)->lmv_mdt_descs, tgt, tmp)
+
+static inline
+struct lu_tgt_desc *lmv_first_connected_tgt(struct lmv_obd *lmv)
+{
+ struct lu_tgt_desc *tgt;
+
+ tgt = ltd_first_tgt(&lmv->lmv_mdt_descs);
+ while (tgt && !tgt->ltd_exp)
+ tgt = ltd_next_tgt(&lmv->lmv_mdt_descs, tgt);
+
+ return tgt;
+}
+
+static inline
+struct lu_tgt_desc *lmv_next_connected_tgt(struct lmv_obd *lmv,
+ struct lu_tgt_desc *tgt)
+{
+ do {
+ tgt = ltd_next_tgt(&lmv->lmv_mdt_descs, tgt);
+ } while (tgt && !tgt->ltd_exp);
- return ERR_PTR(-ENODEV);
+ return tgt;
}
+#define lmv_foreach_connected_tgt(lmv, tgt) \
+ for (tgt = lmv_first_connected_tgt(lmv); tgt; \
+ tgt = lmv_next_connected_tgt(lmv, tgt))
+
static inline int
-lmv_find_target_index(struct lmv_obd *lmv, const struct lu_fid *fid)
+lmv_fid2tgt_index(struct lmv_obd *lmv, const struct lu_fid *fid)
{
- struct lmv_tgt_desc *ltd;
- u32 mdt_idx = 0;
- int index = 0;
-
- if (lmv->desc.ld_tgt_count > 1) {
- int rc;
- rc = lmv_fld_lookup(lmv, fid, &mdt_idx);
- if (rc < 0)
- return rc;
- }
+ u32 mdt_idx;
+ int rc;
- ltd = lmv_get_target(lmv, mdt_idx, &index);
- if (IS_ERR(ltd))
- return PTR_ERR(ltd);
+ if (lmv->lmv_mdt_count < 2)
+ return 0;
- return index;
+ rc = lmv_fld_lookup(lmv, fid, &mdt_idx);
+ if (rc < 0)
+ return rc;
+
+ return mdt_idx;
}
static inline struct lmv_tgt_desc *
-lmv_find_target(struct lmv_obd *lmv, const struct lu_fid *fid)
+lmv_fid2tgt(struct lmv_obd *lmv, const struct lu_fid *fid)
{
+ struct lu_tgt_desc *tgt;
int index;
- index = lmv_find_target_index(lmv, fid);
+ index = lmv_fid2tgt_index(lmv, fid);
if (index < 0)
return ERR_PTR(index);
- return lmv->tgts[index];
+ tgt = lmv_tgt(lmv, index);
+
+ return tgt ? tgt : ERR_PTR(-ENODEV);
}
static inline int lmv_stripe_md_size(int stripe_count)
/* for file under migrating directory, return the target stripe info */
static inline const struct lmv_oinfo *
lsm_name_to_stripe_info(const struct lmv_stripe_md *lsm, const char *name,
- int namelen)
+ int namelen, bool post_migrate)
{
__u32 hash_type = lsm->lsm_md_hash_type;
__u32 stripe_count = lsm->lsm_md_stripe_count;
int stripe_index;
+ LASSERT(lmv_dir_striped(lsm));
+
if (hash_type & LMV_HASH_FLAG_MIGRATION) {
- hash_type &= ~LMV_HASH_FLAG_MIGRATION;
- stripe_count = lsm->lsm_md_migrate_offset;
+ if (post_migrate) {
+ hash_type &= ~LMV_HASH_FLAG_MIGRATION;
+ stripe_count = lsm->lsm_md_migrate_offset;
+ } else {
+ hash_type = lsm->lsm_md_migrate_hash;
+ stripe_count -= lsm->lsm_md_migrate_offset;
+ }
}
stripe_index = lmv_name_to_stripe_index(hash_type, stripe_count,
if (stripe_index < 0)
return ERR_PTR(stripe_index);
- LASSERTF(stripe_index < lsm->lsm_md_stripe_count,
- "stripe_index = %d, stripe_count = %d hash_type = %x"
- "name = %.*s\n", stripe_index, lsm->lsm_md_stripe_count,
- lsm->lsm_md_hash_type, namelen, name);
+ if ((lsm->lsm_md_hash_type & LMV_HASH_FLAG_MIGRATION) && !post_migrate)
+ stripe_index += lsm->lsm_md_migrate_offset;
+
+ if (stripe_index >= lsm->lsm_md_stripe_count) {
+ CERROR("stripe_index %d stripe_count %d hash_type %#x "
+ "migrate_offset %d migrate_hash %#x name %.*s\n",
+ stripe_index, lsm->lsm_md_stripe_count,
+ lsm->lsm_md_hash_type, lsm->lsm_md_migrate_offset,
+ lsm->lsm_md_migrate_hash, namelen, name);
+ return ERR_PTR(-EBADF);
+ }
return &lsm->lsm_md_oinfo[stripe_index];
}
-static inline bool lmv_need_try_all_stripes(const struct lmv_stripe_md *lsm)
+static inline bool lmv_dir_retry_check_update(struct md_op_data *op_data)
{
- return !lmv_is_known_hash_type(lsm->lsm_md_hash_type) ||
- lsm->lsm_md_hash_type & LMV_HASH_FLAG_MIGRATION;
+ const struct lmv_stripe_md *lsm = op_data->op_mea1;
+
+ if (!lsm)
+ return false;
+
+ if (lmv_dir_migrating(lsm) && !op_data->op_post_migrate) {
+ op_data->op_post_migrate = true;
+ return true;
+ }
+
+ if (lmv_dir_bad_hash(lsm) &&
+ op_data->op_stripe_index < lsm->lsm_md_stripe_count - 1) {
+ op_data->op_stripe_index++;
+ return true;
+ }
+
+ return false;
}
-struct lmv_tgt_desc
-*lmv_locate_mds(struct lmv_obd *lmv, struct md_op_data *op_data,
- struct lu_fid *fid);
+struct lmv_tgt_desc *lmv_locate_tgt(struct lmv_obd *lmv,
+ struct md_op_data *op_data);
+
/* lproc_lmv.c */
int lmv_tunables_init(struct obd_device *obd);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff