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authorLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 08:40:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 08:40:35 -0700
commitf9b3bcfbc43ac80f2019a5093ad9a1e624e611b1 (patch)
tree9db502a626fca6213019bbff3e39ff37e11d853d /arch/x86/mm
parent01c7cd0ef5d98fdd007d8a04c9f834bead6e5ee1 (diff)
parent13f72756da86f155898e2c2022f7b3a106c3742e (diff)
downloadop-kernel-dev-f9b3bcfbc43ac80f2019a5093ad9a1e624e611b1.zip
op-kernel-dev-f9b3bcfbc43ac80f2019a5093ad9a1e624e611b1.tar.gz
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm changes from Ingo Molnar: "Misc smaller changes all over the map" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/iommu/dmar: Remove warning for HPET scope type x86/mm/gart: Drop unnecessary check x86/mm/hotplug: Put kernel_physical_mapping_remove() declaration in CONFIG_MEMORY_HOTREMOVE x86/mm/fixmap: Remove unused FIX_CYCLONE_TIMER x86/mm/numa: Simplify some bit mangling x86/mm: Re-enable DEBUG_TLBFLUSH for X86_32 x86/mm/cpa: Cleanup split_large_page() and its callee x86: Drop always empty .text..page_aligned section
Diffstat (limited to 'arch/x86/mm')
-rw-r--r--arch/x86/mm/amdtopology.c3
-rw-r--r--arch/x86/mm/init_64.c2
-rw-r--r--arch/x86/mm/pageattr.c9
3 files changed, 6 insertions, 8 deletions
diff --git a/arch/x86/mm/amdtopology.c b/arch/x86/mm/amdtopology.c
index 5247d01..2ca15b59 100644
--- a/arch/x86/mm/amdtopology.c
+++ b/arch/x86/mm/amdtopology.c
@@ -130,9 +130,8 @@ int __init amd_numa_init(void)
}
limit >>= 16;
- limit <<= 24;
- limit |= (1<<24)-1;
limit++;
+ limit <<= 24;
if (limit > end)
limit = end;
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 71ff55a..caad9a0 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -1016,6 +1016,7 @@ void __ref vmemmap_free(unsigned long start, unsigned long end)
remove_pagetable(start, end, false);
}
+#ifdef CONFIG_MEMORY_HOTREMOVE
static void __meminit
kernel_physical_mapping_remove(unsigned long start, unsigned long end)
{
@@ -1025,7 +1026,6 @@ kernel_physical_mapping_remove(unsigned long start, unsigned long end)
remove_pagetable(start, end, true);
}
-#ifdef CONFIG_MEMORY_HOTREMOVE
int __ref arch_remove_memory(u64 start, u64 size)
{
unsigned long start_pfn = start >> PAGE_SHIFT;
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index fb4e73e..bb32480 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -542,13 +542,14 @@ out_unlock:
return do_split;
}
-int __split_large_page(pte_t *kpte, unsigned long address, pte_t *pbase)
+static int
+__split_large_page(pte_t *kpte, unsigned long address, struct page *base)
{
+ pte_t *pbase = (pte_t *)page_address(base);
unsigned long pfn, pfninc = 1;
unsigned int i, level;
pte_t *tmp;
pgprot_t ref_prot;
- struct page *base = virt_to_page(pbase);
spin_lock(&pgd_lock);
/*
@@ -633,7 +634,6 @@ int __split_large_page(pte_t *kpte, unsigned long address, pte_t *pbase)
static int split_large_page(pte_t *kpte, unsigned long address)
{
- pte_t *pbase;
struct page *base;
if (!debug_pagealloc)
@@ -644,8 +644,7 @@ static int split_large_page(pte_t *kpte, unsigned long address)
if (!base)
return -ENOMEM;
- pbase = (pte_t *)page_address(base);
- if (__split_large_page(kpte, address, pbase))
+ if (__split_large_page(kpte, address, base))
__free_page(base);
return 0;
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