[PATCH 2/2] x86: debug check for kmap_atomic_pfn andiomap_atomic_prot_pfn()

[Akinobu Mita]

It may be useful for kmap_atomic_pfn() and iomap_atomic_prot_pfn() to
check invalid kmap usage as well as kmap_atomic.

Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: <x86@xxxxxxxxxx>
---
 arch/x86/mm/highmem_32.c |    2 ++
 1 file changed, 2 insertions(+)

Index: 2.6-mmotm/arch/x86/mm/highmem_32.c
===================================================================
--- 2.6-mmotm.orig/arch/x86/mm/highmem_32.c
+++ 2.6-mmotm/arch/x86/mm/highmem_32.c
@@ -128,6 +128,8 @@ void *kmap_atomic_prot_pfn(unsigned long
 
 	pagefault_disable();
 
+	debug_kmap_atomic_prot(type);
+
 	idx = type + KM_TYPE_NR * smp_processor_id();
 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
 	set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
--
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