diff options
| author | Oscar Salvador <osalvador@suse.de> | 2025-06-16 15:51:54 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-07-13 16:38:17 -0700 |
| commit | d2a9721d807de405b198291badcc807700746781 (patch) | |
| tree | 4796bb95ce35e4ace31fd871ec94b9448ce7c352 | |
| parent | 1a19c91b9706625684dc109e3fb0d0b2a003c7c5 (diff) | |
mm,memory_hotplug: drop status_change_nid parameter from memory_notify
There no users left of status_change_nid, so drop it from memory_notify
struct.
Link: https://lkml.kernel.org/r/20250616135158.450136-12-osalvador@suse.de
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Suggested-by: David Hildenbrand <david@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Harry Yoo <harry.yoo@oracle.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Joanthan Cameron <Jonathan.Cameron@huawei.com>
Cc: Rakie Kim <rakie.kim@sk.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | Documentation/core-api/memory-hotplug.rst | 7 | ||||
| -rw-r--r-- | include/linux/memory.h | 1 | ||||
| -rw-r--r-- | mm/memory_hotplug.c | 4 |
3 files changed, 0 insertions, 12 deletions
diff --git a/Documentation/core-api/memory-hotplug.rst b/Documentation/core-api/memory-hotplug.rst index fb84e78968b2..8fc97c2379de 100644 --- a/Documentation/core-api/memory-hotplug.rst +++ b/Documentation/core-api/memory-hotplug.rst @@ -59,17 +59,10 @@ The third argument (arg) passes a pointer of struct memory_notify:: struct memory_notify { unsigned long start_pfn; unsigned long nr_pages; - int status_change_nid; } - start_pfn is start_pfn of online/offline memory. - nr_pages is # of pages of online/offline memory. -- status_change_nid is set node id when N_MEMORY of nodemask is (will be) - set/clear. It means a new(memoryless) node gets new memory by online and a - node loses all memory. If this is -1, then nodemask status is not changed. - - If status_changed_nid* >= 0, callback should create/discard structures for the - node if necessary. It is possible to get notified for MEM_CANCEL_ONLINE without having been notified for MEM_GOING_ONLINE, and the same applies to MEM_CANCEL_OFFLINE and diff --git a/include/linux/memory.h b/include/linux/memory.h index a8284d41e452..40eb70ccb09d 100644 --- a/include/linux/memory.h +++ b/include/linux/memory.h @@ -109,7 +109,6 @@ struct memory_notify { unsigned long altmap_nr_pages; unsigned long start_pfn; unsigned long nr_pages; - int status_change_nid; }; struct notifier_block; diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 0d54a01985ba..a371d59cc718 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1153,7 +1153,6 @@ int online_pages(unsigned long pfn, unsigned long nr_pages, struct memory_notify mem_arg = { .start_pfn = pfn, .nr_pages = nr_pages, - .status_change_nid = NUMA_NO_NODE, }; struct node_notify node_arg = { .nid = NUMA_NO_NODE, @@ -1181,7 +1180,6 @@ int online_pages(unsigned long pfn, unsigned long nr_pages, if (!node_state(nid, N_MEMORY)) { /* Adding memory to the node for the first time */ node_arg.nid = nid; - mem_arg.status_change_nid = nid; ret = node_notify(NODE_ADDING_FIRST_MEMORY, &node_arg); ret = notifier_to_errno(ret); if (ret) @@ -1904,7 +1902,6 @@ int offline_pages(unsigned long start_pfn, unsigned long nr_pages, struct memory_notify mem_arg = { .start_pfn = start_pfn, .nr_pages = nr_pages, - .status_change_nid = NUMA_NO_NODE, }; struct node_notify node_arg = { .nid = NUMA_NO_NODE, @@ -1975,7 +1972,6 @@ int offline_pages(unsigned long start_pfn, unsigned long nr_pages, */ if (nr_pages >= pgdat->node_present_pages) { node_arg.nid = node; - mem_arg.status_change_nid = node; ret = node_notify(NODE_REMOVING_LAST_MEMORY, &node_arg); ret = notifier_to_errno(ret); if (ret) { |