#include <lustre_export.h>
#include <lustre/lustre_user.h>
#include <lprocfs_status.h>
+#include <lustre_kernelcomm.h>
#include "mdt_internal.h"
/*
/*
* find a hsm_agent by uuid
- * lock cdt_agent_lock needs to be hold by caller
+ * lock cdt_agent_lock needs to be held by caller
* \param cdt [IN] coordinator
* \param uuid [IN] agent UUID
* \retval hsm_agent pointer or NULL if not found
RETURN(rc);
}
+int mdt_hsm_send_action_to_each_archive(struct mdt_thread_info *mti,
+ struct hsm_action_item *hai)
+{
+ __u64 compound_id;
+ struct hsm_agent *ha;
+ __u32 archive_mask = 0;
+ struct coordinator *cdt = &mti->mti_mdt->mdt_coordinator;
+ int i;
+ /* return error by default in case all archive_ids have unregistered */
+ int rc = -EAGAIN;
+ ENTRY;
+
+ /* send action to all registered archive_ids */
+ down_read(&cdt->cdt_agent_lock);
+ list_for_each_entry(ha, &cdt->cdt_agents, ha_list) {
+ for (i = 0; (i < ha->ha_archive_cnt); i++) {
+ /* only send once for each archive_id */
+ if ((1 << ha->ha_archive_id[i]) & archive_mask)
+ continue;
+ archive_mask |= (1 << ha->ha_archive_id[i]);
+
+ /* XXX: instead of creating one request record per
+ * new action, it could make sense to gather
+ * all for the same archive_id as one compound
+ * request/id, like in mdt_hsm_add_actions() ?? */
+ compound_id = atomic_inc_return(&cdt->cdt_compound_id);
+ rc = mdt_agent_record_add(mti->mti_env, mti->mti_mdt,
+ compound_id,
+ ha->ha_archive_id[i], 0,
+ hai);
+ if (rc) {
+ CERROR("%s: unable to add HSM remove request "
+ "for "DFID": rc=%d\n",
+ mdt_obd_name(mti->mti_mdt),
+ PFID(&hai->hai_fid), rc);
+ break;
+ } else {
+ CDEBUG(D_HSM, "%s: added HSM remove request "
+ "for "DFID", archive_id=%d\n",
+ mdt_obd_name(mti->mti_mdt),
+ PFID(&hai->hai_fid),
+ ha->ha_archive_id[i]);
+ }
+ }
+ /* early exit from loop due to error? */
+ if (i != ha->ha_archive_cnt)
+ break;
+ }
+ up_read(&cdt->cdt_agent_lock);
+
+ RETURN(rc);
+}
+
/**
* send a compound request to the agent
* \param mti [IN] context
ENTRY;
rc = mdt_hsm_find_best_agent(cdt, hal->hal_archive_id, &uuid);
+ if (rc && hal->hal_archive_id == 0) {
+ uint notrmcount = 0;
+ int rc2 = 0;
+
+ /* special case of remove requests with no archive_id specified,
+ * and no agent registered to serve all archives, then create a
+ * set of new requests, each to be sent to each registered
+ * archives.
+ * Todo so, find all HSMA_REMOVE entries, and then :
+ * _ set completed status as SUCCESS (or FAIL?)
+ * _ create a new LLOG record for each archive_id
+ * presently being served by any CT
+ */
+ hai = hai_first(hal);
+ for (i = 0; i < hal->hal_count; i++,
+ hai = hai_next(hai)) {
+ /* only removes are concerned */
+ if (hai->hai_action != HSMA_REMOVE) {
+ /* count if other actions than HSMA_REMOVE,
+ * to return original error/rc */
+ notrmcount++;
+ continue;
+ }
+
+ /* send remove request to all registered archive_ids */
+ rc2 = mdt_hsm_send_action_to_each_archive(mti, hai);
+ if (rc2)
+ break;
+
+ /* only update original request as SUCCEED if it has
+ * been successfully broadcasted to all available
+ * archive_ids
+ * XXX: this should only cause duplicates to be sent,
+ * unless a method to record already successfully
+ * reached archive_ids is implemented */
+ rc2 = mdt_agent_record_update(mti->mti_env, mdt,
+ &hai->hai_cookie,
+ 1, ARS_SUCCEED);
+ if (rc2) {
+ CERROR("%s: mdt_agent_record_update() "
+ "failed, cannot update "
+ "status to %s for cookie "
+ LPX64": rc = %d\n",
+ mdt_obd_name(mdt),
+ agent_req_status2name(ARS_SUCCEED),
+ hai->hai_cookie, rc2);
+ break;
+ }
+ }
+ /* only remove requests with archive_id=0 */
+ if (notrmcount == 0)
+ RETURN(rc2);
+
+ }
+
if (rc) {
CERROR("%s: Cannot find agent for archive %d: rc = %d\n",
mdt_obd_name(mdt), hal->hal_archive_id, rc);
hal->hal_archive_id);
len = hal_size(hal);
- if (kuc_ispayload(hal)) {
- /* hal is already a kuc payload
- * we do not need to alloc a new one
- * this avoid a alloc/memcpy/free
- */
- buf = hal;
- } else {
- buf = kuc_alloc(len, KUC_TRANSPORT_HSM, HMT_ACTION_LIST);
- if (IS_ERR(buf))
- RETURN(PTR_ERR(buf));
- memcpy(buf, hal, len);
- }
+ buf = kuc_alloc(len, KUC_TRANSPORT_HSM, HMT_ACTION_LIST);
+ if (IS_ERR(buf))
+ RETURN(PTR_ERR(buf));
+ memcpy(buf, hal, len);
/* Check if request is still valid (cf file hsm flags) */
fail_request = false;
hai->hai_cookie, rc);
GOTO(out_buf, rc);
}
+
+ /* if restore and record status updated, give
+ * back granted layout lock */
+ if (hai->hai_action == HSMA_RESTORE) {
+ struct cdt_restore_handle *crh = NULL;
+ struct mdt_object *obj = NULL;
+
+ mutex_lock(&cdt->cdt_restore_lock);
+ crh = mdt_hsm_restore_hdl_find(cdt,
+ &hai->hai_fid);
+ if (crh != NULL)
+ list_del(&crh->crh_list);
+ mutex_unlock(&cdt->cdt_restore_lock);
+ obj = mdt_object_find(mti->mti_env,
+ mti->mti_mdt,
+ &hai->hai_fid);
+ if (!IS_ERR(obj) && crh != NULL)
+ mdt_object_unlock(mti, obj,
+ &crh->crh_lh,
+ 1);
+ if (crh != NULL)
+ OBD_SLAB_FREE_PTR(crh,
+ mdt_hsm_cdt_kmem);
+ if (!IS_ERR(obj))
+ mdt_object_put(mti->mti_env,
+ obj);
+ }
}
}
}
*/
exp = cfs_hash_lookup(mdt2obd_dev(mdt)->obd_uuid_hash, &uuid);
if (exp == NULL || exp->exp_disconnected) {
+ if (exp != NULL)
+ class_export_put(exp);
/* This should clean up agents on evicted exports */
rc = -ENOENT;
CERROR("%s: agent uuid (%s) not found, unregistering:"
}
out_buf:
- if (buf != hal)
- kuc_free(buf, len);
+ kuc_free(buf, len);
RETURN(rc);
}
int rc;
ENTRY;
- /* ask to coodinator to update request state and
+ /* ask to coordinator to update request state and
* to record on disk the result */
rc = mdt_hsm_update_request_state(mti, pgs, 1);
RETURN(rc);
RETURN(0);
ha = list_entry(pos, struct hsm_agent, ha_list);
- seq_printf(s, "uuid=%s archive#=%d (", ha->ha_uuid.uuid,
- ha->ha_archive_cnt);
- if (ha->ha_archive_cnt == 0)
- seq_printf(s, "all");
- else
- for (i = 0; i < ha->ha_archive_cnt; i++)
- seq_printf(s, "%d ", ha->ha_archive_id[i]);
+ seq_printf(s, "uuid=%s archive_id=", ha->ha_uuid.uuid);
+ if (ha->ha_archive_cnt == 0) {
+ seq_printf(s, "ANY");
+ } else {
+ seq_printf(s, "%d", ha->ha_archive_id[0]);
+ for (i = 1; i < ha->ha_archive_cnt; i++)
+ seq_printf(s, ",%d", ha->ha_archive_id[i]);
+ }
- seq_printf(s, ") r=%d s=%d f=%d\n",
+ seq_printf(s, " requests=[current:%d ok:%d errors:%d]\n",
atomic_read(&ha->ha_requests),
atomic_read(&ha->ha_success),
atomic_read(&ha->ha_failure));
int rc;
ENTRY;
- if (LPROCFS_ENTRY_AND_CHECK(PDE(inode)))
- RETURN(-ENOENT);
-
rc = seq_open(file, &mdt_hsm_agent_proc_ops);
- if (rc) {
- LPROCFS_EXIT();
+ if (rc)
RETURN(rc);
- }
+
s = file->private_data;
- s->private = PDE(inode)->data;
+ s->private = PDE_DATA(inode);
RETURN(rc);
}