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	diff --git a/lib/pacemaker/pcmk_sched_primitive.c b/lib/pacemaker/pcmk_sched_primitive.c
	index 6163c3a770..16dbaa33a7 100644
	--- a/lib/pacemaker/pcmk_sched_primitive.c
	+++ b/lib/pacemaker/pcmk_sched_primitive.c
	@@ -1,1365 +1,1385 @@
	/*
	* Copyright 2004-2022 the Pacemaker project contributors
	*
	* The version control history for this file may have further details.
	*
	* This source code is licensed under the GNU General Public License version 2
	* or later (GPLv2+) WITHOUT ANY WARRANTY.
	*/

	#include <crm_internal.h>

	#include <stdbool.h>

	#include <crm/msg_xml.h>
	#include <pacemaker-internal.h>

	#include "libpacemaker_private.h"

	gboolean DeleteRsc(pe_resource_t rsc, const pe_node_t node, gboolean optional,
	pe_working_set_t *data_set);
	static bool StopRsc(pe_resource_t rsc, pe_node_t next, bool optional);
	static bool StartRsc(pe_resource_t rsc, pe_node_t next, bool optional);
	static bool DemoteRsc(pe_resource_t rsc, pe_node_t next, bool optional);
	static bool PromoteRsc(pe_resource_t rsc, pe_node_t next, bool optional);
	static bool RoleError(pe_resource_t rsc, pe_node_t next, bool optional);
	static bool NullOp(pe_resource_t rsc, pe_node_t next, bool optional);

	/* This array says what the next role should be when transitioning from one
	* role to another. For example going from Stopped to Promoted, the next role is
	* RSC_ROLE_UNPROMOTED, because the resource must be started before being promoted.
	* The current state then becomes Started, which is fed into this array again,
	* giving a next role of RSC_ROLE_PROMOTED.
	*/
	static enum rsc_role_e rsc_state_matrix[RSC_ROLE_MAX][RSC_ROLE_MAX] = {
	/* Current state Next state*/
	/* Unknown Stopped Started Unpromoted Promoted */
	/* Unknown */ { RSC_ROLE_UNKNOWN, RSC_ROLE_STOPPED, RSC_ROLE_STOPPED, RSC_ROLE_STOPPED, RSC_ROLE_STOPPED },
	/* Stopped */ { RSC_ROLE_STOPPED, RSC_ROLE_STOPPED, RSC_ROLE_STARTED, RSC_ROLE_UNPROMOTED, RSC_ROLE_UNPROMOTED },
	/* Started */ { RSC_ROLE_STOPPED, RSC_ROLE_STOPPED, RSC_ROLE_STARTED, RSC_ROLE_UNPROMOTED, RSC_ROLE_PROMOTED },
	/* Unpromoted */ { RSC_ROLE_STOPPED, RSC_ROLE_STOPPED, RSC_ROLE_STOPPED, RSC_ROLE_UNPROMOTED, RSC_ROLE_PROMOTED },
	/* Promoted */ { RSC_ROLE_STOPPED, RSC_ROLE_UNPROMOTED, RSC_ROLE_UNPROMOTED, RSC_ROLE_UNPROMOTED, RSC_ROLE_PROMOTED },
	};

	typedef bool (rsc_transition_fn)(pe_resource_t rsc, pe_node_t *next,
	bool optional);

	// This array picks the function needed to transition from one role to another
	static rsc_transition_fn rsc_action_matrix[RSC_ROLE_MAX][RSC_ROLE_MAX] = {
	/* Current state Next state */
	/* Unknown Stopped Started Unpromoted Promoted */
	/* Unknown */ { RoleError, StopRsc, RoleError, RoleError, RoleError, },
	/* Stopped */ { RoleError, NullOp, StartRsc, StartRsc, RoleError, },
	/* Started */ { RoleError, StopRsc, NullOp, NullOp, PromoteRsc, },
	/* Unpromoted */ { RoleError, StopRsc, StopRsc, NullOp, PromoteRsc, },
	/* Promoted */ { RoleError, DemoteRsc, DemoteRsc, DemoteRsc, NullOp, },
	};

	/*!
	* \internal
	* \brief Get a list of a resource's allowed nodes sorted by node weight
	*
	* \param[in] rsc Resource to check
	*
	* \return List of allowed nodes sorted by node weight
	*/
	static GList *
	sorted_allowed_nodes(const pe_resource_t *rsc)
	{
	if (rsc->allowed_nodes != NULL) {
	GList *nodes = g_hash_table_get_values(rsc->allowed_nodes);

	if (nodes != NULL) {
	return pcmk__sort_nodes(nodes, pe__current_node(rsc));
	}
	}
	return NULL;
	}

	/*!
	* \internal
	* \brief Assign a resource to its best allowed node, if possible
	*
	* \param[in] rsc Resource to choose a node for
	* \param[in] prefer If not NULL, prefer this node when all else equal
	*
	* \return true if \p rsc could be assigned to a node, otherwise false
	*/
	static bool
	assign_best_node(pe_resource_t rsc, pe_node_t prefer)
	{
	GList *nodes = NULL;
	pe_node_t *chosen = NULL;
	pe_node_t *best = NULL;
	bool result = false;

	pcmk__ban_insufficient_capacity(rsc, &prefer);

	if (!pcmk_is_set(rsc->flags, pe_rsc_provisional)) {
	// We've already finished assignment of resources to nodes
	return rsc->allocated_to != NULL;
	}

	// Sort allowed nodes by weight
	nodes = sorted_allowed_nodes(rsc);
	if (nodes != NULL) {
	best = (pe_node_t *) nodes->data; // First node has best score
	}

	if ((prefer != NULL) && (nodes != NULL)) {
	// Get the allowed node version of prefer
	chosen = g_hash_table_lookup(rsc->allowed_nodes, prefer->details->id);

	if (chosen == NULL) {
	pe_rsc_trace(rsc, "Preferred node %s for %s was unknown",
	pe__node_name(prefer), rsc->id);

	/* Favor the preferred node as long as its weight is at least as good as
	* the best allowed node's.
	*
	* An alternative would be to favor the preferred node even if the best
	* node is better, when the best node's weight is less than INFINITY.
	*/
	} else if (chosen->weight < best->weight) {
	pe_rsc_trace(rsc, "Preferred node %s for %s was unsuitable",
	pe__node_name(chosen), rsc->id);
	chosen = NULL;

	} else if (!pcmk__node_available(chosen, true, false)) {
	pe_rsc_trace(rsc, "Preferred node %s for %s was unavailable",
	pe__node_name(chosen), rsc->id);
	chosen = NULL;

	} else {
	pe_rsc_trace(rsc,
	"Chose preferred node %s for %s (ignoring %d candidates)",
	pe__node_name(chosen), rsc->id, g_list_length(nodes));
	}
	}

	if ((chosen == NULL) && (best != NULL)) {
	/* Either there is no preferred node, or the preferred node is not
	* suitable, but another node is allowed to run the resource.
	*/

	chosen = best;

	if (!pe_rsc_is_unique_clone(rsc->parent)
	&& (chosen->weight > 0) // Zero not acceptable
	&& pcmk__node_available(chosen, false, false)) {
	/* If the resource is already running on a node, prefer that node if
	* it is just as good as the chosen node.
	*
	* We don't do this for unique clone instances, because
	* distribute_children() has already assigned instances to their
	* running nodes when appropriate, and if we get here, we don't want
	* remaining unassigned instances to prefer a node that's already
	* running another instance.
	*/
	pe_node_t *running = pe__current_node(rsc);

	if (running == NULL) {
	// Nothing to do

	} else if (!pcmk__node_available(running, true, false)) {
	pe_rsc_trace(rsc, "Current node for %s (%s) can't run resources",
	rsc->id, pe__node_name(running));

	} else {
	int nodes_with_best_score = 1;

	for (GList *iter = nodes->next; iter; iter = iter->next) {
	pe_node_t allowed = (pe_node_t ) iter->data;

	if (allowed->weight != chosen->weight) {
	// The nodes are sorted by weight, so no more are equal
	break;
	}
	if (allowed->details == running->details) {
	// Scores are equal, so prefer the current node
	chosen = allowed;
	}
	nodes_with_best_score++;
	}

	if (nodes_with_best_score > 1) {
	do_crm_log(((chosen->weight >= INFINITY)? LOG_WARNING : LOG_INFO),
	"Chose %s for %s from %d nodes with score %s",
	pe__node_name(chosen), rsc->id,
	nodes_with_best_score,
	pcmk_readable_score(chosen->weight));
	}
	}
	}

	pe_rsc_trace(rsc, "Chose %s for %s from %d candidates",
	pe__node_name(chosen), rsc->id, g_list_length(nodes));
	}

	result = pcmk__assign_primitive(rsc, chosen, false);
	g_list_free(nodes);
	return result;
	}

	/*!
	* \internal
	* \brief Apply a "this with" colocation to a node's allowed node scores
	*
	* \param[in] data Colocation to apply
	* \param[in] user_data Resource being assigned
	*/
	static void
	apply_this_with(void data, void user_data)
	{
	pcmk__colocation_t colocation = (pcmk__colocation_t ) data;
	pe_resource_t rsc = (pe_resource_t ) user_data;

	GHashTable *archive = NULL;
	pe_resource_t *other = colocation->primary;

	// In certain cases, we will need to revert the node scores
	if ((colocation->dependent_role >= RSC_ROLE_PROMOTED)
	\|\| ((colocation->score < 0) && (colocation->score > -INFINITY))) {
	archive = pcmk__copy_node_table(rsc->allowed_nodes);
	}

	pe_rsc_trace(rsc,
	"%s: Assigning colocation %s primary %s first"
	"(score=%d role=%s)",
	rsc->id, colocation->id, other->id,
	colocation->score, role2text(colocation->dependent_role));
	other->cmds->assign(other, NULL);

	// Apply the colocation score to this resource's allowed node scores
	rsc->cmds->apply_coloc_score(rsc, other, colocation, true);
	if ((archive != NULL)
	&& !pcmk__any_node_available(rsc->allowed_nodes)) {
	pe_rsc_info(rsc,
	"%s: Reverting scores from colocation with %s "
	"because no nodes allowed",
	rsc->id, other->id);
	g_hash_table_destroy(rsc->allowed_nodes);
	rsc->allowed_nodes = archive;
	archive = NULL;
	}
	if (archive != NULL) {
	g_hash_table_destroy(archive);
	}
	}

	/*!
	* \internal
	* \brief Apply a "with this" colocation to a node's allowed node scores
	*
	* \param[in] data Colocation to apply
	* \param[in] user_data Resource being assigned
	*/
	static void
	apply_with_this(void data, void user_data)
	{
	pcmk__colocation_t colocation = (pcmk__colocation_t ) data;
	pe_resource_t rsc = (pe_resource_t ) user_data;

	pe_resource_t *other = colocation->dependent;
	const float factor = colocation->score / (float) INFINITY;

	if (!pcmk__colocation_has_influence(colocation, NULL)) {
	return;
	}
	pe_rsc_trace(rsc,
	"%s: Incorporating attenuated %s assignment scores due "
	"to colocation %s", rsc->id, other->id, colocation->id);
	other->cmds->add_colocated_node_scores(other, rsc->id,
	&rsc->allowed_nodes,
	colocation->node_attribute,
	factor, pcmk__coloc_select_active);
	}

	/*!
	* \internal
	* \brief Update a Pacemaker Remote node once its connection has been assigned
	*
	* \param[in] connection Connection resource that has been assigned
	*/
	static void
	remote_connection_assigned(pe_resource_t *connection)
	{
	pe_node_t *remote_node = pe_find_node(connection->cluster->nodes,
	connection->id);

	CRM_CHECK(remote_node != NULL, return);

	if ((connection->allocated_to != NULL)
	&& (connection->next_role != RSC_ROLE_STOPPED)) {

	crm_trace("Pacemaker Remote node %s will be online",
	remote_node->details->id);
	remote_node->details->online = TRUE;
	if (remote_node->details->unseen) {
	// Avoid unnecessary fence, since we will attempt connection
	remote_node->details->unclean = FALSE;
	}

	} else {
	crm_trace("Pacemaker Remote node %s will be shut down "
	"(%sassigned connection's next role is %s)",
	remote_node->details->id,
	((connection->allocated_to == NULL)? "un" : ""),
	role2text(connection->next_role));
	remote_node->details->shutdown = TRUE;
	}
	}

	/*!
	* \internal
	* \brief Assign a primitive resource to a node
	*
	* \param[in] rsc Resource to assign to a node
	* \param[in] prefer Node to prefer, if all else is equal
	*
	* \return Node that \p rsc is assigned to, if assigned entirely to one node
	*/
	pe_node_t *
	pcmk__primitive_assign(pe_resource_t rsc, pe_node_t prefer)
	{
	CRM_ASSERT(rsc != NULL);

	// Never assign a child without parent being assigned first
	if ((rsc->parent != NULL)
	&& !pcmk_is_set(rsc->parent->flags, pe_rsc_allocating)) {
	pe_rsc_debug(rsc, "%s: Assigning parent %s first",
	rsc->id, rsc->parent->id);
	rsc->parent->cmds->assign(rsc->parent, prefer);
	}

	if (!pcmk_is_set(rsc->flags, pe_rsc_provisional)) {
	return rsc->allocated_to; // Assignment has already been done
	}

	// Ensure we detect assignment loops
	if (pcmk_is_set(rsc->flags, pe_rsc_allocating)) {
	pe_rsc_debug(rsc, "Breaking assignment loop involving %s", rsc->id);
	return NULL;
	}
	pe__set_resource_flags(rsc, pe_rsc_allocating);

	pe__show_node_weights(true, rsc, "Pre-assignment", rsc->allowed_nodes,
	rsc->cluster);

	g_list_foreach(rsc->rsc_cons, apply_this_with, rsc);
	pe__show_node_weights(true, rsc, "Post-this-with", rsc->allowed_nodes,
	rsc->cluster);

	g_list_foreach(rsc->rsc_cons_lhs, apply_with_this, rsc);

	if (rsc->next_role == RSC_ROLE_STOPPED) {
	pe_rsc_trace(rsc,
	"Banning %s from all nodes because it will be stopped",
	rsc->id);
	resource_location(rsc, NULL, -INFINITY, XML_RSC_ATTR_TARGET_ROLE,
	rsc->cluster);

	} else if ((rsc->next_role > rsc->role)
	&& !pcmk_is_set(rsc->cluster->flags, pe_flag_have_quorum)
	&& (rsc->cluster->no_quorum_policy == no_quorum_freeze)) {
	crm_notice("Resource %s cannot be elevated from %s to %s due to "
	"no-quorum-policy=freeze",
	rsc->id, role2text(rsc->role), role2text(rsc->next_role));
	pe__set_next_role(rsc, rsc->role, "no-quorum-policy=freeze");
	}

	pe__show_node_weights(!pcmk_is_set(rsc->cluster->flags, pe_flag_show_scores),
	rsc, __func__, rsc->allowed_nodes, rsc->cluster);

	// Unmanage resource if fencing is enabled but no device is configured
	if (pcmk_is_set(rsc->cluster->flags, pe_flag_stonith_enabled)
	&& !pcmk_is_set(rsc->cluster->flags, pe_flag_have_stonith_resource)) {
	pe__clear_resource_flags(rsc, pe_rsc_managed);
	}

	if (!pcmk_is_set(rsc->flags, pe_rsc_managed)) {
	// Unmanaged resources stay on their current node
	const char *reason = NULL;
	pe_node_t *assign_to = NULL;

	pe__set_next_role(rsc, rsc->role, "unmanaged");
	assign_to = pe__current_node(rsc);
	if (assign_to == NULL) {
	reason = "inactive";
	} else if (rsc->role == RSC_ROLE_PROMOTED) {
	reason = "promoted";
	} else if (pcmk_is_set(rsc->flags, pe_rsc_failed)) {
	reason = "failed";
	} else {
	reason = "active";
	}
	pe_rsc_info(rsc, "Unmanaged resource %s assigned to %s: %s", rsc->id,
	(assign_to? assign_to->details->uname : "no node"), reason);
	pcmk__assign_primitive(rsc, assign_to, true);

	} else if (pcmk_is_set(rsc->cluster->flags, pe_flag_stop_everything)) {
	pe_rsc_debug(rsc, "Forcing %s to stop: stop-all-resources", rsc->id);
	pcmk__assign_primitive(rsc, NULL, true);

	} else if (pcmk_is_set(rsc->flags, pe_rsc_provisional)
	&& assign_best_node(rsc, prefer)) {
	// Assignment successful

	} else if (rsc->allocated_to == NULL) {
	if (!pcmk_is_set(rsc->flags, pe_rsc_orphan)) {
	pe_rsc_info(rsc, "Resource %s cannot run anywhere", rsc->id);
	} else if (rsc->running_on != NULL) {
	pe_rsc_info(rsc, "Stopping orphan resource %s", rsc->id);
	}

	} else {
	pe_rsc_debug(rsc, "%s: pre-assigned to %s", rsc->id,
	pe__node_name(rsc->allocated_to));
	}

	pe__clear_resource_flags(rsc, pe_rsc_allocating);

	if (rsc->is_remote_node) {
	remote_connection_assigned(rsc);
	}

	return rsc->allocated_to;
	}

	/*!
	* \internal
	* \brief Schedule actions to bring resource down and back to current role
	*
	* \param[in] rsc Resource to restart
	* \param[in] current Node that resource should be brought down on
	* \param[in] chosen Node that resource should be brought up on
	* \param[in] need_stop Whether the resource must be stopped
	* \param[in] need_promote Whether the resource must be promoted
	*
	* \return Role that resource would have after scheduled actions are taken
	*/
	static void
	schedule_restart_actions(pe_resource_t rsc, pe_node_t current,
	pe_node_t *chosen, bool need_stop, bool need_promote)
	{
	enum rsc_role_e role = rsc->role;
	enum rsc_role_e next_role;

	pe__set_resource_flags(rsc, pe_rsc_restarting);

	// Bring resource down to a stop on its current node
	while (role != RSC_ROLE_STOPPED) {
	next_role = rsc_state_matrix[role][RSC_ROLE_STOPPED];
	pe_rsc_trace(rsc, "Creating %s action to take %s down from %s to %s",
	(need_stop? "required" : "optional"), rsc->id,
	role2text(role), role2text(next_role));
	if (!rsc_action_matrix[role][next_role](rsc, current, !need_stop)) {
	break;
	}
	role = next_role;
	}

	// Bring resource up to its next role on its next node
	while ((rsc->role <= rsc->next_role) && (role != rsc->role)
	&& !pcmk_is_set(rsc->flags, pe_rsc_block)) {
	bool required = need_stop;

	next_role = rsc_state_matrix[role][rsc->role];
	if ((next_role == RSC_ROLE_PROMOTED) && need_promote) {
	required = true;
	}
	pe_rsc_trace(rsc, "Creating %s action to take %s up from %s to %s",
	(required? "required" : "optional"), rsc->id,
	role2text(role), role2text(next_role));
	if (!rsc_action_matrix[role][next_role](rsc, chosen, !required)) {
	break;
	}
	role = next_role;
	}

	pe__clear_resource_flags(rsc, pe_rsc_restarting);
	}

	+/*!
	+ * \internal
	+ * \brief If a resource's next role is not explicitly specified, set a default
	+ *
	+ * \param[in,out] rsc Resource to set next role for
	+ *
	+ * \return "explicit" if next role was explicitly set, otherwise "implicit"
	+ */
	+static const char *
	+set_default_next_role(pe_resource_t *rsc)
	+{
	+ if (rsc->next_role != RSC_ROLE_UNKNOWN) {
	+ return "explicit";
	+ }
	+
	+ if (rsc->allocated_to == NULL) {
	+ pe__set_next_role(rsc, RSC_ROLE_STOPPED, "assignment");
	+ } else {
	+ pe__set_next_role(rsc, RSC_ROLE_STARTED, "assignment");
	+ }
	+ return "implicit";
	+}
	+
	void
	native_create_actions(pe_resource_t *rsc)
	{
	pe_action_t *start = NULL;
	pe_node_t *chosen = NULL;
	pe_node_t *current = NULL;
	gboolean need_stop = FALSE;
	bool need_promote = FALSE;
	gboolean is_moving = FALSE;
	gboolean allow_migrate = FALSE;

	unsigned int num_all_active = 0;
	unsigned int num_clean_active = 0;
	bool multiply_active = FALSE;
	enum rsc_role_e role = RSC_ROLE_UNKNOWN;
	- enum rsc_role_e next_role = RSC_ROLE_UNKNOWN;
	+ const char *next_role_source = NULL;

	CRM_ASSERT(rsc != NULL);

	chosen = rsc->allocated_to;
	- next_role = rsc->next_role;
	- if (next_role == RSC_ROLE_UNKNOWN) {
	- pe__set_next_role(rsc,
	- (chosen == NULL)? RSC_ROLE_STOPPED : RSC_ROLE_STARTED,
	- "allocation");
	- }
	- pe_rsc_trace(rsc, "Creating all actions for %s transition from %s to %s (%s) on %s",
	+ next_role_source = set_default_next_role(rsc);
	+ pe_rsc_trace(rsc,
	+ "Creating all actions for %s transition from %s to %s "
	+ "(%s) on %s",
	rsc->id, role2text(rsc->role), role2text(rsc->next_role),
	- ((next_role == RSC_ROLE_UNKNOWN)? "implicit" : "explicit"),
	- pe__node_name(chosen));
	+ next_role_source, pe__node_name(chosen));

	current = pe__find_active_on(rsc, &num_all_active, &num_clean_active);

	g_list_foreach(rsc->dangling_migrations, pcmk__abort_dangling_migration,
	rsc);

	if ((current != NULL) && (chosen != NULL)
	&& (current->details != chosen->details)
	&& (rsc->next_role >= RSC_ROLE_STARTED)) {

	pe_rsc_trace(rsc, "Moving %s from %s to %s",
	rsc->id, pe__node_name(current), pe__node_name(chosen));
	is_moving = TRUE;
	allow_migrate = pcmk__rsc_can_migrate(rsc, current);

	// This is needed even if migrating (though I'm not sure why ...)
	need_stop = TRUE;
	}

	// Check whether resource is partially migrated and/or multiply active
	if ((rsc->partial_migration_source != NULL)
	&& (rsc->partial_migration_target != NULL)
	&& allow_migrate && (num_all_active == 2)
	&& (current->details == rsc->partial_migration_source->details)
	&& (chosen->details == rsc->partial_migration_target->details)) {
	/* A partial migration is in progress, and the migration target remains
	* the same as when the migration began.
	*/
	pe_rsc_trace(rsc, "Partial migration of %s from %s to %s will continue",
	rsc->id, pe__node_name(rsc->partial_migration_source),
	pe__node_name(rsc->partial_migration_target));

	} else if ((rsc->partial_migration_source != NULL)
	\|\| (rsc->partial_migration_target != NULL)) {
	// A partial migration is in progress but can't be continued

	if (num_all_active > 2) {
	// The resource is migrating and multiply active!
	crm_notice("Forcing recovery of %s because it is migrating "
	"from %s to %s and possibly active elsewhere",
	rsc->id, pe__node_name(rsc->partial_migration_source),
	pe__node_name(rsc->partial_migration_target));
	} else {
	// The migration source or target isn't available
	crm_notice("Forcing recovery of %s because it can no longer "
	"migrate from %s to %s",
	rsc->id, pe__node_name(rsc->partial_migration_source),
	pe__node_name(rsc->partial_migration_target));
	}
	need_stop = TRUE;
	rsc->partial_migration_source = rsc->partial_migration_target = NULL;
	allow_migrate = FALSE;

	} else if (!pcmk_is_set(rsc->flags, pe_rsc_needs_fencing)) {
	/* If a resource has "requires" set to nothing or quorum, don't consider
	* it active on unclean nodes (similar to how all resources behave when
	* stonith-enabled is false). We can start such resources elsewhere
	* before fencing completes, and if we considered the resource active on
	* the failed node, we would attempt recovery for being active on
	* multiple nodes.
	*/
	multiply_active = (num_clean_active > 1);
	} else {
	multiply_active = (num_all_active > 1);
	}

	if (multiply_active) {
	const char *class = crm_element_value(rsc->xml, XML_AGENT_ATTR_CLASS);

	// Resource was (possibly) incorrectly multiply active
	pe_proc_err("%s resource %s might be active on %u nodes (%s)",
	pcmk__s(class, "Untyped"), rsc->id, num_all_active,
	recovery2text(rsc->recovery_type));
	crm_notice("See https://wiki.clusterlabs.org/wiki/FAQ#Resource_is_Too_Active for more information");

	switch (rsc->recovery_type) {
	case recovery_stop_start:
	need_stop = TRUE;
	break;
	case recovery_stop_unexpected:
	need_stop = TRUE; // StopRsc() will skip expected node
	pe__set_resource_flags(rsc, pe_rsc_stop_unexpected);
	break;
	default:
	break;
	}

	} else {
	pe__clear_resource_flags(rsc, pe_rsc_stop_unexpected);
	}

	if (pcmk_is_set(rsc->flags, pe_rsc_start_pending)) {
	pe_rsc_trace(rsc, "Creating start action for %s to represent already pending start",
	rsc->id);
	start = start_action(rsc, chosen, TRUE);
	pe__set_action_flags(start, pe_action_print_always);
	}

	if (is_moving) {
	// Remaining tests are only for resources staying where they are

	} else if (pcmk_is_set(rsc->flags, pe_rsc_failed)) {
	if (pcmk_is_set(rsc->flags, pe_rsc_stop)) {
	need_stop = TRUE;
	pe_rsc_trace(rsc, "Recovering %s", rsc->id);
	} else {
	pe_rsc_trace(rsc, "Recovering %s by demotion", rsc->id);
	if (rsc->next_role == RSC_ROLE_PROMOTED) {
	need_promote = TRUE;
	}
	}

	} else if (pcmk_is_set(rsc->flags, pe_rsc_block)) {
	pe_rsc_trace(rsc, "Blocking further actions on %s", rsc->id);
	need_stop = TRUE;

	} else if (rsc->role > RSC_ROLE_STARTED && current != NULL && chosen != NULL) {
	pe_rsc_trace(rsc, "Creating start action for promoted resource %s",
	rsc->id);
	start = start_action(rsc, chosen, TRUE);
	if (!pcmk_is_set(start->flags, pe_action_optional)) {
	// Recovery of a promoted resource
	pe_rsc_trace(rsc, "%s restart is required for recovery", rsc->id);
	need_stop = TRUE;
	}
	}

	/* Create any additional actions required when bringing resource down and
	* back up to same level.
	*/
	schedule_restart_actions(rsc, current, chosen, need_stop, need_promote);

	/* Required steps from this role to the next */
	role = rsc->role;
	while (role != rsc->next_role) {
	- next_role = rsc_state_matrix[role][rsc->next_role];
	+ enum rsc_role_e next_role = rsc_state_matrix[role][rsc->next_role];
	+
	pe_rsc_trace(rsc, "Creating action to take %s from %s to %s (ending at %s)",
	rsc->id, role2text(role), role2text(next_role),
	role2text(rsc->next_role));
	if (!rsc_action_matrix[role][next_role](rsc, chosen, false)) {
	break;
	}
	role = next_role;
	}

	pcmk__create_recurring_actions(rsc);

	if (allow_migrate) {
	pcmk__create_migration_actions(rsc, current);
	}
	}

	static void
	rsc_avoids_remote_nodes(pe_resource_t *rsc)
	{
	GHashTableIter iter;
	pe_node_t *node = NULL;
	g_hash_table_iter_init(&iter, rsc->allowed_nodes);
	while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
	if (node->details->remote_rsc) {
	node->weight = -INFINITY;
	}
	}
	}

	/*!
	* \internal
	* \brief Return allowed nodes as (possibly sorted) list
	*
	* Convert a resource's hash table of allowed nodes to a list. If printing to
	* stdout, sort the list, to keep action ID numbers consistent for regression
	* test output (while avoiding the performance hit on a live cluster).
	*
	* \param[in] rsc Resource to check for allowed nodes
	* \param[in] data_set Cluster working set
	*
	* \return List of resource's allowed nodes
	* \note Callers should take care not to rely on the list being sorted.
	*/
	static GList *
	allowed_nodes_as_list(pe_resource_t rsc, pe_working_set_t data_set)
	{
	GList *allowed_nodes = NULL;

	if (rsc->allowed_nodes) {
	allowed_nodes = g_hash_table_get_values(rsc->allowed_nodes);
	}

	if (!pcmk__is_daemon) {
	allowed_nodes = g_list_sort(allowed_nodes, pe__cmp_node_name);
	}

	return allowed_nodes;
	}

	void
	native_internal_constraints(pe_resource_t *rsc)
	{
	/* This function is on the critical path and worth optimizing as much as possible */

	pe_resource_t *top = NULL;
	GList *allowed_nodes = NULL;
	bool check_unfencing = FALSE;
	bool check_utilization = false;

	if (!pcmk_is_set(rsc->flags, pe_rsc_managed)) {
	pe_rsc_trace(rsc,
	"Skipping native constraints for unmanaged resource: %s",
	rsc->id);
	return;
	}

	top = uber_parent(rsc);

	// Whether resource requires unfencing
	check_unfencing = !pcmk_is_set(rsc->flags, pe_rsc_fence_device)
	&& pcmk_is_set(rsc->cluster->flags, pe_flag_enable_unfencing)
	&& pcmk_is_set(rsc->flags, pe_rsc_needs_unfencing);

	// Whether a non-default placement strategy is used
	check_utilization = (g_hash_table_size(rsc->utilization) > 0)
	&& !pcmk__str_eq(rsc->cluster->placement_strategy,
	"default", pcmk__str_casei);

	// Order stops before starts (i.e. restart)
	pcmk__new_ordering(rsc, pcmk__op_key(rsc->id, RSC_STOP, 0), NULL,
	rsc, pcmk__op_key(rsc->id, RSC_START, 0), NULL,
	pe_order_optional\|pe_order_implies_then\|pe_order_restart,
	rsc->cluster);

	// Promotable ordering: demote before stop, start before promote
	if (pcmk_is_set(top->flags, pe_rsc_promotable)
	\|\| (rsc->role > RSC_ROLE_UNPROMOTED)) {

	pcmk__new_ordering(rsc, pcmk__op_key(rsc->id, RSC_DEMOTE, 0), NULL,
	rsc, pcmk__op_key(rsc->id, RSC_STOP, 0), NULL,
	pe_order_promoted_implies_first, rsc->cluster);

	pcmk__new_ordering(rsc, pcmk__op_key(rsc->id, RSC_START, 0), NULL,
	rsc, pcmk__op_key(rsc->id, RSC_PROMOTE, 0), NULL,
	pe_order_runnable_left, rsc->cluster);
	}

	// Don't clear resource history if probing on same node
	pcmk__new_ordering(rsc, pcmk__op_key(rsc->id, CRM_OP_LRM_DELETE, 0),
	NULL, rsc, pcmk__op_key(rsc->id, RSC_STATUS, 0),
	NULL, pe_order_same_node\|pe_order_then_cancels_first,
	rsc->cluster);

	// Certain checks need allowed nodes
	if (check_unfencing \|\| check_utilization \|\| rsc->container) {
	allowed_nodes = allowed_nodes_as_list(rsc, rsc->cluster);
	}

	if (check_unfencing) {
	/* Check if the node needs to be unfenced first */

	for (GList *item = allowed_nodes; item; item = item->next) {
	pe_node_t *node = item->data;
	pe_action_t *unfence = pe_fence_op(node, "on", TRUE, NULL, FALSE,
	rsc->cluster);

	crm_debug("Ordering any stops of %s before %s, and any starts after",
	rsc->id, unfence->uuid);

	/*
	* It would be more efficient to order clone resources once,
	* rather than order each instance, but ordering the instance
	* allows us to avoid unnecessary dependencies that might conflict
	* with user constraints.
	*
	* @TODO: This constraint can still produce a transition loop if the
	* resource has a stop scheduled on the node being unfenced, and
	* there is a user ordering constraint to start some other resource
	* (which will be ordered after the unfence) before stopping this
	* resource. An example is "start some slow-starting cloned service
	* before stopping an associated virtual IP that may be moving to
	* it":
	* stop this -> unfencing -> start that -> stop this
	*/
	pcmk__new_ordering(rsc, stop_key(rsc), NULL,
	NULL, strdup(unfence->uuid), unfence,
	pe_order_optional\|pe_order_same_node,
	rsc->cluster);

	pcmk__new_ordering(NULL, strdup(unfence->uuid), unfence,
	rsc, start_key(rsc), NULL,
	pe_order_implies_then_on_node\|pe_order_same_node,
	rsc->cluster);
	}
	}

	if (check_utilization) {
	pcmk__create_utilization_constraints(rsc, allowed_nodes);
	}

	if (rsc->container) {
	pe_resource_t *remote_rsc = NULL;

	if (rsc->is_remote_node) {
	// rsc is the implicit remote connection for a guest or bundle node

	/* Do not allow a guest resource to live on a Pacemaker Remote node,
	* to avoid nesting remotes. However, allow bundles to run on remote
	* nodes.
	*/
	if (!pcmk_is_set(rsc->flags, pe_rsc_allow_remote_remotes)) {
	rsc_avoids_remote_nodes(rsc->container);
	}

	/* If someone cleans up a guest or bundle node's container, we will
	* likely schedule a (re-)probe of the container and recovery of the
	* connection. Order the connection stop after the container probe,
	* so that if we detect the container running, we will trigger a new
	* transition and avoid the unnecessary recovery.
	*/
	pcmk__order_resource_actions(rsc->container, RSC_STATUS, rsc,
	RSC_STOP, pe_order_optional);

	/* A user can specify that a resource must start on a Pacemaker Remote
	* node by explicitly configuring it with the container=NODENAME
	* meta-attribute. This is of questionable merit, since location
	* constraints can accomplish the same thing. But we support it, so here
	* we check whether a resource (that is not itself a remote connection)
	* has container set to a remote node or guest node resource.
	*/
	} else if (rsc->container->is_remote_node) {
	remote_rsc = rsc->container;
	} else {
	remote_rsc = pe__resource_contains_guest_node(rsc->cluster,
	rsc->container);
	}

	if (remote_rsc) {
	/* Force the resource on the Pacemaker Remote node instead of
	* colocating the resource with the container resource.
	*/
	for (GList *item = allowed_nodes; item; item = item->next) {
	pe_node_t *node = item->data;

	if (node->details->remote_rsc != remote_rsc) {
	node->weight = -INFINITY;
	}
	}

	} else {
	/* This resource is either a filler for a container that does NOT
	* represent a Pacemaker Remote node, or a Pacemaker Remote
	* connection resource for a guest node or bundle.
	*/
	int score;

	crm_trace("Order and colocate %s relative to its container %s",
	rsc->id, rsc->container->id);

	pcmk__new_ordering(rsc->container,
	pcmk__op_key(rsc->container->id, RSC_START, 0),
	NULL, rsc, pcmk__op_key(rsc->id, RSC_START, 0),
	NULL,
	pe_order_implies_then\|pe_order_runnable_left,
	rsc->cluster);

	pcmk__new_ordering(rsc, pcmk__op_key(rsc->id, RSC_STOP, 0), NULL,
	rsc->container,
	pcmk__op_key(rsc->container->id, RSC_STOP, 0),
	NULL, pe_order_implies_first, rsc->cluster);

	if (pcmk_is_set(rsc->flags, pe_rsc_allow_remote_remotes)) {
	score = 10000; /* Highly preferred but not essential */
	} else {
	score = INFINITY; /* Force them to run on the same host */
	}
	pcmk__new_colocation("resource-with-container", NULL, score, rsc,
	rsc->container, NULL, NULL, true, rsc->cluster);
	}
	}

	if (rsc->is_remote_node \|\| pcmk_is_set(rsc->flags, pe_rsc_fence_device)) {
	/* don't allow remote nodes to run stonith devices
	* or remote connection resources.*/
	rsc_avoids_remote_nodes(rsc);
	}
	g_list_free(allowed_nodes);
	}

	/*!
	* \internal
	* \brief Apply a colocation's score to node weights or resource priority
	*
	* Given a colocation constraint, apply its score to the dependent's
	* allowed node weights (if we are still placing resources) or priority (if
	* we are choosing promotable clone instance roles).
	*
	* \param[in] dependent Dependent resource in colocation
	* \param[in] primary Primary resource in colocation
	* \param[in] colocation Colocation constraint to apply
	* \param[in] for_dependent true if called on behalf of dependent
	*/
	void
	pcmk__primitive_apply_coloc_score(pe_resource_t *dependent,
	pe_resource_t *primary,
	pcmk__colocation_t *colocation,
	bool for_dependent)
	{
	enum pcmk__coloc_affects filter_results;

	CRM_CHECK((colocation != NULL) && (dependent != NULL) && (primary != NULL),
	return);

	if (for_dependent) {
	// Always process on behalf of primary resource
	primary->cmds->apply_coloc_score(dependent, primary, colocation, false);
	return;
	}

	filter_results = pcmk__colocation_affects(dependent, primary, colocation,
	false);
	pe_rsc_trace(dependent, "%s %s with %s (%s, score=%d, filter=%d)",
	((colocation->score > 0)? "Colocating" : "Anti-colocating"),
	dependent->id, primary->id, colocation->id, colocation->score,
	filter_results);

	switch (filter_results) {
	case pcmk__coloc_affects_role:
	pcmk__apply_coloc_to_priority(dependent, primary, colocation);
	break;
	case pcmk__coloc_affects_location:
	pcmk__apply_coloc_to_weights(dependent, primary, colocation);
	break;
	default: // pcmk__coloc_affects_nothing
	return;
	}
	}

	enum pe_action_flags
	native_action_flags(pe_action_t * action, pe_node_t * node)
	{
	return action->flags;
	}

	void
	native_rsc_location(pe_resource_t rsc, pe__location_t constraint)
	{
	pcmk__apply_location(constraint, rsc);
	}

	/*!
	* \internal
	* \brief Check whether a node is a multiply active resource's expected node
	*
	* \param[in] rsc Resource to check
	* \param[in] node Node to check
	*
	* \return true if \p rsc is multiply active with multiple-active set to
	* stop_unexpected, and \p node is the node where it will remain active
	* \note This assumes that the resource's next role cannot be changed to stopped
	* after this is called, which should be reasonable if status has already
	* been unpacked and resources have been assigned to nodes.
	*/
	static bool
	is_expected_node(const pe_resource_t rsc, const pe_node_t node)
	{
	return pcmk_all_flags_set(rsc->flags,
	pe_rsc_stop_unexpected\|pe_rsc_restarting)
	&& (rsc->next_role > RSC_ROLE_STOPPED)
	&& (rsc->allocated_to != NULL) && (node != NULL)
	&& (rsc->allocated_to->details == node->details);
	}

	static bool
	StopRsc(pe_resource_t rsc, pe_node_t next, bool optional)
	{
	GList *gIter = NULL;

	CRM_ASSERT(rsc);

	for (gIter = rsc->running_on; gIter != NULL; gIter = gIter->next) {
	pe_node_t current = (pe_node_t ) gIter->data;
	pe_action_t *stop;

	if (is_expected_node(rsc, current)) {
	/* We are scheduling restart actions for a multiply active resource
	* with multiple-active=stop_unexpected, and this is where it should
	* not be stopped.
	*/
	pe_rsc_trace(rsc,
	"Skipping stop of multiply active resource %s "
	"on expected node %s",
	rsc->id, pe__node_name(current));
	continue;
	}

	if (rsc->partial_migration_target) {
	if (rsc->partial_migration_target->details == current->details
	// Only if the allocated node still is the migration target.
	&& rsc->allocated_to
	&& rsc->allocated_to->details == rsc->partial_migration_target->details) {
	pe_rsc_trace(rsc,
	"Skipping stop of %s on %s "
	"because migration to %s in progress",
	rsc->id, pe__node_name(current),
	pe__node_name(next));
	continue;
	} else {
	pe_rsc_trace(rsc,
	"Forcing stop of %s on %s "
	"because migration target changed",
	rsc->id, pe__node_name(current));
	optional = false;
	}
	}

	pe_rsc_trace(rsc, "Scheduling stop of %s on %s",
	rsc->id, pe__node_name(current));
	stop = stop_action(rsc, current, optional);

	if(rsc->allocated_to == NULL) {
	pe_action_set_reason(stop, "node availability", TRUE);
	} else if (pcmk_all_flags_set(rsc->flags, pe_rsc_restarting
	\|pe_rsc_stop_unexpected)) {
	/* We are stopping a multiply active resource on a node that is
	* not its expected node, and we are still scheduling restart
	* actions, so the stop is for being multiply active.
	*/
	pe_action_set_reason(stop, "being multiply active", TRUE);
	}

	if (!pcmk_is_set(rsc->flags, pe_rsc_managed)) {
	pe__clear_action_flags(stop, pe_action_runnable);
	}

	if (pcmk_is_set(rsc->cluster->flags, pe_flag_remove_after_stop)) {
	DeleteRsc(rsc, current, optional, rsc->cluster);
	}

	if (pcmk_is_set(rsc->flags, pe_rsc_needs_unfencing)) {
	pe_action_t *unfence = pe_fence_op(current, "on", TRUE, NULL, FALSE,
	rsc->cluster);

	order_actions(stop, unfence, pe_order_implies_first);
	if (!pcmk__node_unfenced(current)) {
	pe_proc_err("Stopping %s until %s can be unfenced",
	rsc->id, pe__node_name(current));
	}
	}
	}

	return true;
	}

	static bool
	StartRsc(pe_resource_t rsc, pe_node_t next, bool optional)
	{
	pe_action_t *start = NULL;

	CRM_ASSERT(rsc);

	pe_rsc_trace(rsc, "Scheduling %s start of %s on %s (weight=%d)",
	(optional? "optional" : "required"), rsc->id,
	pe__node_name(next),
	((next == NULL)? 0 : next->weight));
	start = start_action(rsc, next, TRUE);

	pcmk__order_vs_unfence(rsc, next, start, pe_order_implies_then);

	if (pcmk_is_set(start->flags, pe_action_runnable) && !optional) {
	pe__clear_action_flags(start, pe_action_optional);
	}

	if (is_expected_node(rsc, next)) {
	/* This could be a problem if the start becomes necessary for other
	* reasons later.
	*/
	pe_rsc_trace(rsc,
	"Start of multiply active resouce %s "
	"on expected node %s will be a pseudo-action",
	rsc->id, pe__node_name(next));
	pe__set_action_flags(start, pe_action_pseudo);
	}

	return true;
	}

	static bool
	PromoteRsc(pe_resource_t rsc, pe_node_t next, bool optional)
	{
	GList *gIter = NULL;
	gboolean runnable = TRUE;
	GList *action_list = NULL;

	CRM_ASSERT(rsc);
	CRM_CHECK(next != NULL, return false);

	pe_rsc_trace(rsc, "%s on %s", rsc->id, pe__node_name(next));

	action_list = pe__resource_actions(rsc, next, RSC_START, TRUE);

	for (gIter = action_list; gIter != NULL; gIter = gIter->next) {
	pe_action_t start = (pe_action_t ) gIter->data;

	if (!pcmk_is_set(start->flags, pe_action_runnable)) {
	runnable = FALSE;
	}
	}
	g_list_free(action_list);

	if (runnable) {
	pe_action_t *promote = promote_action(rsc, next, optional);

	if (is_expected_node(rsc, next)) {
	/* This could be a problem if the promote becomes necessary for
	* other reasons later.
	*/
	pe_rsc_trace(rsc,
	"Promotion of multiply active resouce %s "
	"on expected node %s will be a pseudo-action",
	rsc->id, pe__node_name(next));
	pe__set_action_flags(promote, pe_action_pseudo);
	}

	return true;
	}

	pe_rsc_debug(rsc, "%s\tPromote %s (canceled)",
	pe__node_name(next), rsc->id);

	action_list = pe__resource_actions(rsc, next, RSC_PROMOTE, TRUE);

	for (gIter = action_list; gIter != NULL; gIter = gIter->next) {
	pe_action_t promote = (pe_action_t ) gIter->data;

	pe__clear_action_flags(promote, pe_action_runnable);
	}

	g_list_free(action_list);
	return true;
	}

	static bool
	DemoteRsc(pe_resource_t rsc, pe_node_t next, bool optional)
	{
	GList *gIter = NULL;

	CRM_ASSERT(rsc);

	if (is_expected_node(rsc, next)) {
	pe_rsc_trace(rsc,
	"Skipping demote of multiply active resource %s "
	"on expected node %s",
	rsc->id, pe__node_name(next));
	return true;
	}

	pe_rsc_trace(rsc, "%s", rsc->id);

	/* CRM_CHECK(rsc->next_role == RSC_ROLE_UNPROMOTED, return FALSE); */
	for (gIter = rsc->running_on; gIter != NULL; gIter = gIter->next) {
	pe_node_t current = (pe_node_t ) gIter->data;

	pe_rsc_trace(rsc, "%s on %s", rsc->id, pe__node_name(next));
	demote_action(rsc, current, optional);
	}
	return true;
	}

	static bool
	RoleError(pe_resource_t rsc, pe_node_t next, bool optional)
	{
	CRM_ASSERT(rsc);
	crm_err("%s on %s", rsc->id, pe__node_name(next));
	CRM_CHECK(false, return false);
	return false;
	}

	static bool
	NullOp(pe_resource_t rsc, pe_node_t next, bool optional)
	{
	CRM_ASSERT(rsc);
	pe_rsc_trace(rsc, "%s", rsc->id);
	return FALSE;
	}

	gboolean
	DeleteRsc(pe_resource_t rsc, const pe_node_t node, gboolean optional,
	pe_working_set_t *data_set)
	{
	if (pcmk_is_set(rsc->flags, pe_rsc_failed)) {
	pe_rsc_trace(rsc, "Resource %s not deleted from %s: failed",
	rsc->id, pe__node_name(node));
	return FALSE;

	} else if (node == NULL) {
	pe_rsc_trace(rsc, "Resource %s not deleted: NULL node", rsc->id);
	return FALSE;

	} else if (node->details->unclean \|\| node->details->online == FALSE) {
	pe_rsc_trace(rsc, "Resource %s not deleted from %s: unrunnable",
	rsc->id, pe__node_name(node));
	return FALSE;
	}

	crm_notice("Removing %s from %s", rsc->id, pe__node_name(node));

	delete_action(rsc, node, optional);

	pcmk__order_resource_actions(rsc, RSC_STOP, rsc, RSC_DELETE,
	optional? pe_order_implies_then : pe_order_optional);

	pcmk__order_resource_actions(rsc, RSC_DELETE, rsc, RSC_START,
	optional? pe_order_implies_then : pe_order_optional);

	return TRUE;
	}

	void
	native_append_meta(pe_resource_t * rsc, xmlNode * xml)
	{
	char *value = g_hash_table_lookup(rsc->meta, XML_RSC_ATTR_INCARNATION);
	pe_resource_t *parent;

	if (value) {
	char *name = NULL;

	name = crm_meta_name(XML_RSC_ATTR_INCARNATION);
	crm_xml_add(xml, name, value);
	free(name);
	}

	value = g_hash_table_lookup(rsc->meta, XML_RSC_ATTR_REMOTE_NODE);
	if (value) {
	char *name = NULL;

	name = crm_meta_name(XML_RSC_ATTR_REMOTE_NODE);
	crm_xml_add(xml, name, value);
	free(name);
	}

	for (parent = rsc; parent != NULL; parent = parent->parent) {
	if (parent->container) {
	crm_xml_add(xml, CRM_META"_"XML_RSC_ATTR_CONTAINER, parent->container->id);
	}
	}
	}

	// Primitive implementation of resource_alloc_functions_t:add_utilization()
	void
	pcmk__primitive_add_utilization(pe_resource_t rsc, pe_resource_t orig_rsc,
	GList all_rscs, GHashTable utilization)
	{
	if (!pcmk_is_set(rsc->flags, pe_rsc_provisional)) {
	return;
	}

	pe_rsc_trace(orig_rsc, "%s: Adding primitive %s as colocated utilization",
	orig_rsc->id, rsc->id);
	pcmk__release_node_capacity(utilization, rsc);
	}

	/*!
	* \internal
	* \brief Get epoch time of node's shutdown attribute (or now if none)
	*
	* \param[in] node Node to check
	* \param[in] data_set Cluster working set
	*
	* \return Epoch time corresponding to shutdown attribute if set or now if not
	*/
	static time_t
	shutdown_time(pe_node_t node, pe_working_set_t data_set)
	{
	const char *shutdown = pe_node_attribute_raw(node, XML_CIB_ATTR_SHUTDOWN);
	time_t result = 0;

	if (shutdown != NULL) {
	long long result_ll;

	if (pcmk__scan_ll(shutdown, &result_ll, 0LL) == pcmk_rc_ok) {
	result = (time_t) result_ll;
	}
	}
	return (result == 0)? get_effective_time(data_set) : result;
	}

	// Primitive implementation of resource_alloc_functions_t:shutdown_lock()
	void
	pcmk__primitive_shutdown_lock(pe_resource_t *rsc)
	{
	const char *class = crm_element_value(rsc->xml, XML_AGENT_ATTR_CLASS);

	// Fence devices and remote connections can't be locked
	if (pcmk__str_eq(class, PCMK_RESOURCE_CLASS_STONITH, pcmk__str_null_matches)
	\|\| pe__resource_is_remote_conn(rsc, rsc->cluster)) {
	return;
	}

	if (rsc->lock_node != NULL) {
	// The lock was obtained from resource history

	if (rsc->running_on != NULL) {
	/* The resource was started elsewhere even though it is now
	* considered locked. This shouldn't be possible, but as a
	* failsafe, we don't want to disturb the resource now.
	*/
	pe_rsc_info(rsc,
	"Cancelling shutdown lock because %s is already active",
	rsc->id);
	pe__clear_resource_history(rsc, rsc->lock_node, rsc->cluster);
	rsc->lock_node = NULL;
	rsc->lock_time = 0;
	}

	// Only a resource active on exactly one node can be locked
	} else if (pcmk__list_of_1(rsc->running_on)) {
	pe_node_t *node = rsc->running_on->data;

	if (node->details->shutdown) {
	if (node->details->unclean) {
	pe_rsc_debug(rsc, "Not locking %s to unclean %s for shutdown",
	rsc->id, pe__node_name(node));
	} else {
	rsc->lock_node = node;
	rsc->lock_time = shutdown_time(node, rsc->cluster);
	}
	}
	}

	if (rsc->lock_node == NULL) {
	// No lock needed
	return;
	}

	if (rsc->cluster->shutdown_lock > 0) {
	time_t lock_expiration = rsc->lock_time + rsc->cluster->shutdown_lock;

	pe_rsc_info(rsc, "Locking %s to %s due to shutdown (expires @%lld)",
	rsc->id, pe__node_name(rsc->lock_node),
	(long long) lock_expiration);
	pe__update_recheck_time(++lock_expiration, rsc->cluster);
	} else {
	pe_rsc_info(rsc, "Locking %s to %s due to shutdown",
	rsc->id, pe__node_name(rsc->lock_node));
	}

	// If resource is locked to one node, ban it from all other nodes
	for (GList *item = rsc->cluster->nodes; item != NULL; item = item->next) {
	pe_node_t *node = item->data;

	if (strcmp(node->details->uname, rsc->lock_node->details->uname)) {
	resource_location(rsc, node, -CRM_SCORE_INFINITY,
	XML_CONFIG_ATTR_SHUTDOWN_LOCK, rsc->cluster);
	}
	}
	}

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