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authorAl Viro2014-12-09 02:39:29 +0100
committerAl Viro2014-12-09 02:39:29 +0100
commitba00410b8131b23edfb0e09f8b6dd26c8eb621fb (patch)
treec08504e4d2fa51ac91cef544f336d0169806c49f /arch/arm/mm/highmem.c
parentMerge tag 'trace-seq-file-cleanup' of git://git.kernel.org/pub/scm/linux/kern... (diff)
parentcopy_from_iter_nocache() (diff)
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Merge branch 'iov_iter' into for-next
Diffstat (limited to 'arch/arm/mm/highmem.c')
-rw-r--r--arch/arm/mm/highmem.c3
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();