diff options
| author | Michal Hocko <mhocko@suse.com> | 2022-03-22 14:46:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-22 15:57:10 -0700 |
| commit | 390511e1476eb1cc41d420a7661b33f4d8584c3f (patch) | |
| tree | e482ba94af43b62e7878d69457aa4bdd401454ef /mm/memory_hotplug.c | |
| parent | 09f49dca570a917a8c6bccd7e8c61f5141534e3a (diff) | |
mm, memory_hotplug: drop arch_free_nodedata
Prior to "mm: handle uninitialized numa nodes gracefully" memory hotplug
used to allocate pgdat when memory has been added to a node
(hotadd_init_pgdat) arch_free_nodedata has been only used in the failure
path because once the pgdat is exported (to be visible by NODA_DATA(nid))
it cannot really be freed because there is no synchronization available
for that.
pgdat is allocated for each possible nodes now so the memory hotplug
doesn't need to do the ever use arch_free_nodedata so drop it.
This patch doesn't introduce any functional change.
Link: https://lkml.kernel.org/r/20220127085305.20890-4-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Rafael Aquini <raquini@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Alexey Makhalov <amakhalov@vmware.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Nico Pache <npache@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory_hotplug.c')
| -rw-r--r-- | mm/memory_hotplug.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 11f39d0e76ec..55c3e5309088 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1217,16 +1217,6 @@ static pg_data_t __ref *hotadd_init_pgdat(int nid) return pgdat; } -static void rollback_node_hotadd(int nid) -{ - pg_data_t *pgdat = NODE_DATA(nid); - - arch_refresh_nodedata(nid, NULL); - free_percpu(pgdat->per_cpu_nodestats); - arch_free_nodedata(pgdat); -} - - /* * __try_online_node - online a node if offlined * @nid: the node ID |