diff options
Diffstat (limited to 'arch/s390/mm/init.c')
| -rw-r--r-- | arch/s390/mm/init.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index 7d6638c18cb4..5b1ec2f532e0 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -290,12 +290,13 @@ int arch_add_memory(int nid, u64 start, u64 size, void arch_remove_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap) { - /* - * There is no hardware or firmware interface which could trigger a - * hot memory remove on s390. So there is nothing that needs to be - * implemented. - */ - BUG(); + unsigned long start_pfn = start >> PAGE_SHIFT; + unsigned long nr_pages = size >> PAGE_SHIFT; + struct zone *zone; + + zone = page_zone(pfn_to_page(start_pfn)); + __remove_pages(zone, start_pfn, nr_pages, altmap); + vmem_remove_mapping(start, size); } #endif #endif /* CONFIG_MEMORY_HOTPLUG */ |