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| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2013-02-14 15:35:28 +1100 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2013-02-14 15:35:28 +1100 |
| commit | f600c997a1e930c3be312fdc4d1a67979d89173e (patch) | |
| tree | 352f5d35d672887a5552730cb71af9d3f068fe19 /arch/sh/mm/init.c | |
| parent | 065957b017e290977dc5527ae4e21cff9d3fb5ec (diff) | |
| parent | 0ef183f7f162a62662f6002b03bcf3ca2903c937 (diff) | |
Merge branch 'akpm/master'
Diffstat (limited to 'arch/sh/mm/init.c')
| -rw-r--r-- | arch/sh/mm/init.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index 82cc576fab15..105794037143 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -558,4 +558,21 @@ int memory_add_physaddr_to_nid(u64 addr) EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); #endif +#ifdef CONFIG_MEMORY_HOTREMOVE +int arch_remove_memory(u64 start, u64 size) +{ + unsigned long start_pfn = start >> PAGE_SHIFT; + unsigned long nr_pages = size >> PAGE_SHIFT; + struct zone *zone; + int ret; + + zone = page_zone(pfn_to_page(start_pfn)); + ret = __remove_pages(zone, start_pfn, nr_pages); + if (unlikely(ret)) + pr_warn("%s: Failed, __remove_pages() == %d\n", __func__, + ret); + + return ret; +} +#endif #endif /* CONFIG_MEMORY_HOTPLUG */ |