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| author |   Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-10-01 14:52:40 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-10-01 14:52:40 -0300 |
| commit | aaf675f53a7176475f69595827248c8b2556ea8c (patch) | |
| tree | 0cb744dec714328c9f89bf85553fb7195107e5d4 /mm/memory_hotplug.c | |
| parent | tda1004x: Lock I2C bus during firmware load (diff) | |
| parent | Linux 3.6 (diff) | |
| download | linux-dev-aaf675f53a7176475f69595827248c8b2556ea8c.tar.xz linux-dev-aaf675f53a7176475f69595827248c8b2556ea8c.zip | |
Merge tag 'v3.6' into staging/for_v3.7
Linux 3.6
* tag 'v3.6': (562 commits)
Linux 3.6
vfs: dcache: fix deadlock in tree traversal
mtdchar: fix offset overflow detection
thp: avoid VM_BUG_ON page_count(page) false positives in __collapse_huge_page_copy
iommu/amd: Fix wrong assumption in iommu-group specific code
netdev: octeon: fix return value check in octeon_mgmt_init_phy()
ALSA: snd-usb: fix next_packet_size calls for pause case
inetpeer: fix token initialization
qlcnic: Fix scheduling while atomic bug
bnx2: Clean up remaining iounmap
trivial select_parent documentation fix
net: phy: smsc: Implement PHY config_init for LAN87xx
smsc75xx: fix resume after device reset
um: Preinclude include/linux/kern_levels.h
um: Fix IPC on um
netdev: pasemi: fix return value check in pasemi_mac_phy_init()
team: fix return value check
l2tp: fix return value check
USB: Fix race condition when removing host controllers
USB: ohci-at91: fix null pointer in ohci_hcd_at91_overcurrent_irq
...
Diffstat (limited to 'mm/memory_hotplug.c')
| -rw-r--r-- | mm/memory_hotplug.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 3ad25f9d1fc1..6a5b90d0cfd7 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -126,9 +126,6 @@ static void register_page_bootmem_info_section(unsigned long start_pfn) struct mem_section *ms; struct page *page, *memmap; - if (!pfn_valid(start_pfn)) - return; - section_nr = pfn_to_section_nr(start_pfn); ms = __nr_to_section(section_nr); @@ -187,9 +184,16 @@ void register_page_bootmem_info_node(struct pglist_data *pgdat) end_pfn = pfn + pgdat->node_spanned_pages; /* register_section info */ - for (; pfn < end_pfn; pfn += PAGES_PER_SECTION) - register_page_bootmem_info_section(pfn); - + for (; pfn < end_pfn; pfn += PAGES_PER_SECTION) { + /* + * Some platforms can assign the same pfn to multiple nodes - on + * node0 as well as nodeN. To avoid registering a pfn against + * multiple nodes we check that this pfn does not already + * reside in some other node. + */ + if (pfn_valid(pfn) && (pfn_to_nid(pfn) == node)) + register_page_bootmem_info_section(pfn); + } } #endif /* !CONFIG_SPARSEMEM_VMEMMAP */ |