diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-13 14:53:16 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-13 14:53:16 -0800 |
| commit | a6525042bfdfcab128bd91fad264de10fd24a55e (patch) | |
| tree | 088102ff69846c71c963e970a90d627498202928 /arch/x86/pci | |
| parent | b9a0d06a35c382c02f471a0815e2e27cdfe1c7f9 (diff) | |
| parent | 58dab916dfb57328d50deb0aa9b3fc92efa248ff (diff) | |
Merge branch 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86 PAT: remove CPA WARN_ON for zero pte
x86 PAT: return compatible mapping to remap_pfn_range callers
x86 PAT: change track_pfn_vma_new to take pgprot_t pointer param
x86 PAT: consolidate old memtype new memtype check into a function
x86 PAT: remove PFNMAP type on track_pfn_vma_new() error
Diffstat (limited to 'arch/x86/pci')
| -rw-r--r-- | arch/x86/pci/i386.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index f884740da31..5ead808dd70 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -314,17 +314,7 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, return retval; if (flags != new_flags) { - /* - * Do not fallback to certain memory types with certain - * requested type: - * - request is uncached, return cannot be write-back - * - request is uncached, return cannot be write-combine - * - request is write-combine, return cannot be write-back - */ - if ((flags == _PAGE_CACHE_UC_MINUS && - (new_flags == _PAGE_CACHE_WB)) || - (flags == _PAGE_CACHE_WC && - new_flags == _PAGE_CACHE_WB)) { + if (!is_new_memtype_allowed(flags, new_flags)) { free_memtype(addr, addr+len); return -EINVAL; } |