diff options
| author | Oscar Salvador <osalvador@suse.de> | 2025-06-16 15:51:49 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-07-13 16:38:15 -0700 |
| commit | 41a9344bb732cf9af5d7a004a836754fa0e7cf56 (patch) | |
| tree | 94982da32de94cdbc10ffc60f11eccc946a8e493 | |
| parent | 265ab0869783d99b9dfbfda1697ce6989441aa04 (diff) | |
drivers,cxl: use node-notifier instead of memory-notifier
memory-tier 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 needs to get its performance attributes to build a proper
demotion chain. So stop using the memory notifier and use the new numa
node notifer instead.
Link: https://lkml.kernel.org/r/20250616135158.450136-7-osalvador@suse.de
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Rakie Kim <rakie.kim@sk.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | drivers/cxl/core/region.c | 16 | ||||
| -rw-r--r-- | drivers/cxl/cxl.h | 4 |
2 files changed, 10 insertions, 10 deletions
diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c index 6e5e1460068d..ba42259c3701 100644 --- a/drivers/cxl/core/region.c +++ b/drivers/cxl/core/region.c @@ -2451,12 +2451,12 @@ static int cxl_region_perf_attrs_callback(struct notifier_block *nb, unsigned long action, void *arg) { struct cxl_region *cxlr = container_of(nb, struct cxl_region, - memory_notifier); - struct memory_notify *mnb = arg; - int nid = mnb->status_change_nid; + node_notifier); + struct node_notify *nn = arg; + int nid = nn->nid; int region_nid; - if (nid == NUMA_NO_NODE || action != MEM_ONLINE) + if (action != NODE_ADDED_FIRST_MEMORY) return NOTIFY_DONE; /* @@ -3527,7 +3527,7 @@ static void shutdown_notifiers(void *_cxlr) { struct cxl_region *cxlr = _cxlr; - unregister_memory_notifier(&cxlr->memory_notifier); + unregister_node_notifier(&cxlr->node_notifier); unregister_mt_adistance_algorithm(&cxlr->adist_notifier); } @@ -3566,9 +3566,9 @@ out: if (rc) return rc; - cxlr->memory_notifier.notifier_call = cxl_region_perf_attrs_callback; - cxlr->memory_notifier.priority = CXL_CALLBACK_PRI; - register_memory_notifier(&cxlr->memory_notifier); + cxlr->node_notifier.notifier_call = cxl_region_perf_attrs_callback; + cxlr->node_notifier.priority = CXL_CALLBACK_PRI; + register_node_notifier(&cxlr->node_notifier); cxlr->adist_notifier.notifier_call = cxl_region_calculate_adistance; cxlr->adist_notifier.priority = 100; diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h index 3f1695c96abc..c487445214cc 100644 --- a/drivers/cxl/cxl.h +++ b/drivers/cxl/cxl.h @@ -513,7 +513,7 @@ enum cxl_partition_mode { * @flags: Region state flags * @params: active + config params for the region * @coord: QoS access coordinates for the region - * @memory_notifier: notifier for setting the access coordinates to node + * @node_notifier: notifier for setting the access coordinates to node * @adist_notifier: notifier for calculating the abstract distance of node */ struct cxl_region { @@ -526,7 +526,7 @@ struct cxl_region { unsigned long flags; struct cxl_region_params params; struct access_coordinate coord[ACCESS_COORDINATE_MAX]; - struct notifier_block memory_notifier; + struct notifier_block node_notifier; struct notifier_block adist_notifier; }; |