Commit 487d45d1 authored by Oscar Salvador's avatar Oscar Salvador Committed by Andrew Morton
Browse files

drivers,hmat: use node-notifier instead of memory-notifier 

hmat driver is only concerned when a numa node changes its memory state,
specifically when a numa node with memory comes into play for the first
time, because it will register the memory_targets belonging to that numa
node.  So stop using the memory notifier and use the new numa node notifer
instead.

Link: https://lkml.kernel.org/r/20250616135158.450136-8-osalvador@suse.de


Signed-off-by: default avatarOscar Salvador <osalvador@suse.de>
Reviewed-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: default avatarHarry Yoo <harry.yoo@oracle.com>
Reviewed-by: default avatarVlastimil Babka <vbabka@suse.cz>
Acked-by: default avatarDavid Hildenbrand <david@redhat.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Rakie Kim <rakie.kim@sk.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 41a9344b

drivers/acpi/numa/hmat.c

+4 −4
Original line number Diff line number Diff line
@@ -962,10 +962,10 @@ static int hmat_callback(struct notifier_block *self, 
			 unsigned long action, void *arg)

{

	struct memory_target *target;

	struct memory_notify *mnb = arg;

	int pxm, nid = mnb->status_change_nid;

	struct node_notify *nn = arg;

	int pxm, nid = nn->nid;



	if (nid == NUMA_NO_NODE || action != MEM_ONLINE)

	if (action != NODE_ADDED_FIRST_MEMORY)

		return NOTIFY_OK;



	pxm = node_to_pxm(nid);
@@ -1118,7 +1118,7 @@ static __init int hmat_init(void) 
	hmat_register_targets();



	/* Keep the table and structures if the notifier may use them */

	if (hotplug_memory_notifier(hmat_callback, HMAT_CALLBACK_PRI))

	if (hotplug_node_notifier(hmat_callback, HMAT_CALLBACK_PRI))

		goto out_put;



	if (!hmat_set_default_dram_perf())