[v02,5/5] migration/memory: Support 'ibm,dynamic-memory-v2'
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Message ID 23ba23ce-4d18-ff7d-bfef-e1b133ce95ef@linux.vnet.ibm.com
State Superseded
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Series
  • powerpc/migration: Affinity fix for memory
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Commit Message

Michael Bringmann June 29, 2018, 10:13 p.m. UTC
migration/memory: This patch adds recognition for changes to the
associativity of memory blocks described by 'ibm,dynamic-memory-v2'.
If the associativity of an LMB has changed, it should be readded to
the system in order to update local and general kernel data structures.
This patch builds upon previous enhancements that scan the device-tree
"ibm,dynamic-memory" properties using the base LMB array, and a copy
derived from the updated properties.

Signed-off-by: Michael Bringmann <mwb@linux.vnet.ibm.com>
---
 arch/powerpc/platforms/pseries/hotplug-memory.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Patch
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diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 7dcc3e9..5c7d9c0 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -1199,7 +1199,8 @@  static int pseries_memory_notifier(struct notifier_block *nb,
 		err = pseries_remove_mem_node(rd->dn);
 		break;
 	case OF_RECONFIG_UPDATE_PROPERTY:
-		if (!strcmp(rd->prop->name, "ibm,dynamic-memory")) {
+		if (!strcmp(rd->prop->name, "ibm,dynamic-memory") ||
+		    !strcmp(rd->prop->name, "ibm,dynamic-memory-v2")) {
 			struct drmem_lmb_info *dinfo =
 				drmem_lmbs_init(rd->prop);
 			if (!dinfo)