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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-24 01:50:35 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-24 01:50:35 (GMT) |
commit | 5ce1a70e2f00f0bce0cab57f798ca354b9496169 (patch) | |
tree | 6e80200536b7a3576fd71ff2c7135ffe87dc858e /arch/powerpc | |
parent | 9d3cae26acb471d5954cfdc25d1438b32060babe (diff) | |
parent | ef53d16cded7f89b3843b7a96970dab897843ea5 (diff) | |
download | linux-5ce1a70e2f00f0bce0cab57f798ca354b9496169.tar.xz |
Merge branch 'akpm' (more incoming from Andrew)
Merge second patch-bomb from Andrew Morton:
- A little DM fix
- the MM queue
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (154 commits)
ksm: allocate roots when needed
mm: cleanup "swapcache" in do_swap_page
mm,ksm: swapoff might need to copy
mm,ksm: FOLL_MIGRATION do migration_entry_wait
ksm: shrink 32-bit rmap_item back to 32 bytes
ksm: treat unstable nid like in stable tree
ksm: add some comments
tmpfs: fix mempolicy object leaks
tmpfs: fix use-after-free of mempolicy object
mm/fadvise.c: drain all pagevecs if POSIX_FADV_DONTNEED fails to discard all pages
mm: export mmu notifier invalidates
mm: accelerate mm_populate() treatment of THP pages
mm: use long type for page counts in mm_populate() and get_user_pages()
mm: accurately document nr_free_*_pages functions with code comments
HWPOISON: change order of error_states[]'s elements
HWPOISON: fix misjudgement of page_action() for errors on mlocked pages
memcg: stop warning on memcg_propagate_kmem
net: change type of virtio_chan->p9_max_pages
vmscan: change type of vm_total_pages to unsigned long
fs/nfsd: change type of max_delegations, nfsd_drc_max_mem and nfsd_drc_mem_used
...
Diffstat (limited to 'arch/powerpc')
-rw-r--r-- | arch/powerpc/mm/init_64.c | 5 | ||||
-rw-r--r-- | arch/powerpc/mm/mem.c | 12 |
2 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c index 95a4529..7e2246f 100644 --- a/arch/powerpc/mm/init_64.c +++ b/arch/powerpc/mm/init_64.c @@ -297,5 +297,10 @@ int __meminit vmemmap_populate(struct page *start_page, return 0; } + +void vmemmap_free(struct page *memmap, unsigned long nr_pages) +{ +} + #endif /* CONFIG_SPARSEMEM_VMEMMAP */ diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 40df7c8..f1f7409 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -133,6 +133,18 @@ int arch_add_memory(int nid, u64 start, u64 size) return __add_pages(nid, zone, start_pfn, nr_pages); } + +#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; + + zone = page_zone(pfn_to_page(start_pfn)); + return __remove_pages(zone, start_pfn, nr_pages); +} +#endif #endif /* CONFIG_MEMORY_HOTPLUG */ /* |