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| author |   Thierry Reding <treding@nvidia.com> | 2014-11-26 09:41:09 +0100 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2014-11-26 09:42:11 +0100 |
| commit | 7f06dd61248a75668bbb39b6fcca6ff407745df8 (patch) | |
| tree | 30cefbd6f503d20557e24a1765a027687170a7da /arch/arm/mm/highmem.c | |
| parent | Linux 3.18-rc1 (diff) | |
| parent | powerpc/iommu: Rename iommu_[un]map_sg functions (diff) | |
| download | linux-dev-7f06dd61248a75668bbb39b6fcca6ff407745df8.tar.xz linux-dev-7f06dd61248a75668bbb39b6fcca6ff407745df8.zip | |
Merge branch 'core' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
This branch contains a couple of changes that will conflict with the
Tegra SMMU driver rewrite. Since the driver is largely rewritten the
conflict resolution is non-trivial.
Diffstat (limited to 'arch/arm/mm/highmem.c')
| -rw-r--r-- | arch/arm/mm/highmem.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mm/highmem.c b/arch/arm/mm/highmem.c index 45aeaaca9052..e17ed00828d7 100644 --- a/arch/arm/mm/highmem.c +++ b/arch/arm/mm/highmem.c @@ -127,8 +127,11 @@ void *kmap_atomic_pfn(unsigned long pfn) { unsigned long vaddr; int idx, type; + struct page *page = pfn_to_page(pfn); pagefault_disable(); + if (!PageHighMem(page)) + return page_address(page); type = kmap_atomic_idx_push(); idx = type + KM_TYPE_NR * smp_processor_id(); |