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authorvenkatesh.pallipadi@intel.com <venkatesh.pallipadi@intel.com>2009-01-09 16:13:11 -0800
committerIngo Molnar <mingo@elte.hu>2009-01-13 19:13:01 +0100
commite4b866ed197cef9989348e0479fed8d864ea465b (patch)
tree0420e59a2312f6d1156ec85e6895cf6f322e0c6f /mm/memory.c
parentafc7d20c8429f32f19d47367fdc36eeed2334ec3 (diff)
downloadop-kernel-dev-e4b866ed197cef9989348e0479fed8d864ea465b.zip
op-kernel-dev-e4b866ed197cef9989348e0479fed8d864ea465b.tar.gz
x86 PAT: change track_pfn_vma_new to take pgprot_t pointer param
Impact: cleanup Change the protection parameter for track_pfn_vma_new() into a pgprot_t pointer. Subsequent patch changes the x86 PAT handling to return a compatible memtype in pgprot_t, if what was requested cannot be allowed due to conflicts. No fuctionality change in this patch. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'mm/memory.c')
-rw-r--r--mm/memory.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/mm/memory.c b/mm/memory.c
index d3ee2ea..22bfa7a 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1511,6 +1511,7 @@ int vm_insert_pfn(struct vm_area_struct *vma, unsigned long addr,
unsigned long pfn)
{
int ret;
+ pgprot_t pgprot = vma->vm_page_prot;
/*
* Technically, architectures with pte_special can avoid all these
* restrictions (same for remap_pfn_range). However we would like
@@ -1525,10 +1526,10 @@ int vm_insert_pfn(struct vm_area_struct *vma, unsigned long addr,
if (addr < vma->vm_start || addr >= vma->vm_end)
return -EFAULT;
- if (track_pfn_vma_new(vma, vma->vm_page_prot, pfn, PAGE_SIZE))
+ if (track_pfn_vma_new(vma, &pgprot, pfn, PAGE_SIZE))
return -EINVAL;
- ret = insert_pfn(vma, addr, pfn, vma->vm_page_prot);
+ ret = insert_pfn(vma, addr, pfn, pgprot);
if (ret)
untrack_pfn_vma(vma, pfn, PAGE_SIZE);
@@ -1671,7 +1672,7 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr,
vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP;
- err = track_pfn_vma_new(vma, prot, pfn, PAGE_ALIGN(size));
+ err = track_pfn_vma_new(vma, &prot, pfn, PAGE_ALIGN(size));
if (err) {
/*
* To indicate that track_pfn related cleanup is not
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