mm, highmem: kmap_atomic rework

Index: linux-2.6/crypto/async_tx/async_memcpy.c
===================================================================
@@ -83,8 +83,8 @@ async_memcpy(struct page *dest, struct p
 
 		memcpy(dest_buf, src_buf, len);
 
-		kunmap_atomic(dest_buf, KM_USER0);
 		kunmap_atomic(src_buf, KM_USER1);
+		kunmap_atomic(dest_buf, KM_USER0);
 
 		async_tx_sync_epilog(submit);
 	}

Index: linux-2.6/crypto/blkcipher.c
===================================================================
@@ -89,9 +89,9 @@ static inline unsigned int blkcipher_don
 		memcpy(walk->dst.virt.addr, walk->page, n);
 		blkcipher_unmap_dst(walk);
 	} else if (!(walk->flags & BLKCIPHER_WALK_PHYS)) {
-		blkcipher_unmap_src(walk);
 		if (walk->flags & BLKCIPHER_WALK_DIFF)
 			blkcipher_unmap_dst(walk);
+		blkcipher_unmap_src(walk);
 	}
 
 	scatterwalk_advance(&walk->in, n);

Index: linux-2.6/drivers/block/loop.c
===================================================================
@@ -99,8 +99,8 @@ static int transfer_none(struct loop_dev
 	else
 		memcpy(raw_buf, loop_buf, size);
 
-	kunmap_atomic(raw_buf, KM_USER0);
 	kunmap_atomic(loop_buf, KM_USER1);
+	kunmap_atomic(raw_buf, KM_USER0);
 	cond_resched();
 	return 0;
 }

@@ -128,8 +128,8 @@ static int transfer_xor(struct loop_devi
 	for (i = 0; i < size; i++)
 		*out++ = *in++ ^ key[(i & 511) % keysize];
 
-	kunmap_atomic(raw_buf, KM_USER0);
 	kunmap_atomic(loop_buf, KM_USER1);
+	kunmap_atomic(raw_buf, KM_USER0);
 	cond_resched();
 	return 0;
 }

Index: linux-2.6/include/linux/highmem.h
===================================================================
@@ -191,8 +191,8 @@ static inline void copy_user_highpage(st
 	vfrom = kmap_atomic(from, KM_USER0);
 	vto = kmap_atomic(to, KM_USER1);
 	copy_user_page(vto, vfrom, vaddr, to);
-	kunmap_atomic(vfrom, KM_USER0);
 	kunmap_atomic(vto, KM_USER1);
+	kunmap_atomic(vfrom, KM_USER0);
 }
 
 #endif

@@ -204,8 +204,8 @@ static inline void copy_highpage(struct 
 	vfrom = kmap_atomic(from, KM_USER0);
 	vto = kmap_atomic(to, KM_USER1);
 	copy_page(vto, vfrom);
-	kunmap_atomic(vfrom, KM_USER0);
 	kunmap_atomic(vto, KM_USER1);
+	kunmap_atomic(vfrom, KM_USER0);
 }
 
 #endif /* _LINUX_HIGHMEM_H */

Index: linux-2.6/kernel/power/snapshot.c
===================================================================
@@ -978,8 +978,8 @@ static void copy_data_page(unsigned long
 		src = kmap_atomic(s_page, KM_USER0);
 		dst = kmap_atomic(d_page, KM_USER1);
 		do_copy_page(dst, src);
-		kunmap_atomic(src, KM_USER0);
 		kunmap_atomic(dst, KM_USER1);
+		kunmap_atomic(src, KM_USER0);
 	} else {
 		if (PageHighMem(d_page)) {
 			/* Page pointed to by src may contain some kernel

@@ -2253,8 +2253,8 @@ swap_two_pages_data(struct page *p1, str
 	memcpy(buf, kaddr1, PAGE_SIZE);
 	memcpy(kaddr1, kaddr2, PAGE_SIZE);
 	memcpy(kaddr2, buf, PAGE_SIZE);
-	kunmap_atomic(kaddr1, KM_USER0);
 	kunmap_atomic(kaddr2, KM_USER1);
+	kunmap_atomic(kaddr1, KM_USER0);
 }
 
 /**

Index: linux-2.6/arch/arm/mm/highmem.c
===================================================================
@@ -61,6 +61,8 @@ void *kmap_atomic(struct page *page, enu
 	if (kmap)
 		return kmap;
 
+	type = kmap_atomic_idx_push();
+
 	idx = type + KM_TYPE_NR * smp_processor_id();
 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
 #ifdef CONFIG_DEBUG_HIGHMEM

@@ -85,9 +87,12 @@ EXPORT_SYMBOL(kmap_atomic);
 void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
 {
 	unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
-	unsigned int idx = type + KM_TYPE_NR * smp_processor_id();
+	unsigned int idx;
 
 	if (kvaddr >= (void *)FIXADDR_START) {
+		type = kmap_atomic_idx_pop();
+		idx = type + KM_TYPE_NR * smp_processor_id();
+
 		if (cache_is_vivt())
 			__cpuc_flush_dcache_area((void *)vaddr, PAGE_SIZE);
 #ifdef CONFIG_DEBUG_HIGHMEM

@@ -112,6 +117,7 @@ void *kmap_atomic_pfn(unsigned long pfn,
 
 	pagefault_disable();
 
+	type = kmap_atomic_idx_push();
 	idx = type + KM_TYPE_NR * smp_processor_id();
 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
 #ifdef CONFIG_DEBUG_HIGHMEM

Index: linux-2.6/arch/frv/include/asm/highmem.h
===================================================================
@@ -117,7 +117,7 @@ static inline void *kmap_atomic(struct p
 	unsigned long paddr;
 
 	pagefault_disable();
-	debug_kmap_atomic(type);
+	type = kmap_atomic_idx_push();
 	paddr = page_to_phys(page);
 
 	switch (type) {

@@ -154,6 +154,7 @@ do {									\
 
 static inline void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
 {
+	type = kmap_atomic_idx_pop();
 	switch (type) {
         case 0:		__kunmap_atomic_primary(0, 2);	break;
         case 1:		__kunmap_atomic_primary(1, 3);	break;

Index: linux-2.6/arch/mips/mm/highmem.c
===================================================================
@@ -51,7 +51,7 @@ void *__kmap_atomic(struct page *page, e
 	if (!PageHighMem(page))
 		return page_address(page);
 
-	debug_kmap_atomic(type);
+	type = kmap_atomic_idx_push();
 	idx = type + KM_TYPE_NR*smp_processor_id();
 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
 #ifdef CONFIG_DEBUG_HIGHMEM

@@ -66,15 +66,18 @@ EXPORT_SYMBOL(__kmap_atomic);
 
 void __kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
 {
-#ifdef CONFIG_DEBUG_HIGHMEM
 	unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
-	enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+	unsigned int idx;
 
 	if (vaddr < FIXADDR_START) { // FIXME
 		pagefault_enable();
 		return;
 	}
 
+	type = kmap_atomic_idx_pop();
+#ifdef CONFIG_DEBUG_HIGHMEM
+	idx = type + KM_TYPE_NR * smp_processor_id();
+
 	BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
 
 	/*

@@ -84,7 +87,6 @@ void __kunmap_atomic_notypecheck(void *k
 	pte_clear(&init_mm, vaddr, kmap_pte-idx);
 	local_flush_tlb_one(vaddr);
 #endif
-
 	pagefault_enable();
 }
 EXPORT_SYMBOL(__kunmap_atomic_notypecheck);

@@ -100,7 +102,7 @@ void *kmap_atomic_pfn(unsigned long pfn,
 
 	pagefault_disable();
 
-	debug_kmap_atomic(type);
+	type = kmap_atomic_idx_push();
 	idx = type + KM_TYPE_NR*smp_processor_id();
 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
 	set_pte(kmap_pte-idx, pfn_pte(pfn, PAGE_KERNEL));

Index: linux-2.6/arch/mn10300/include/asm/highmem.h
===================================================================
@@ -75,10 +75,11 @@ static inline unsigned long kmap_atomic(
 	enum fixed_addresses idx;
 	unsigned long vaddr;
 
+	pagefault_disable();
 	if (page < highmem_start_page)
 		return page_address(page);
 
-	debug_kmap_atomic(type);
+	type = kmap_atomic_idx_push();
 	idx = type + KM_TYPE_NR * smp_processor_id();
 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
 #if HIGHMEM_DEBUG

@@ -93,24 +94,31 @@ static inline unsigned long kmap_atomic(
 
 static inline void kunmap_atomic_notypecheck(unsigned long vaddr, enum km_type type)
 {
-#if HIGHMEM_DEBUG
-	enum fixed_addresses idx = type + KM_TYPE_NR * smp_processor_id();
-
-	if (vaddr < FIXADDR_START) /* FIXME */
+	if (vaddr < FIXADDR_START) { /* FIXME */
+		pagefault_enable();
 		return;
+	}
 
-	if (vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx))
-		BUG();
+	type = kmap_atomic_idx_pop();
 
-	/*
-	 * force other mappings to Oops if they'll try to access
-	 * this pte without first remap it
-	 */
-	pte_clear(kmap_pte - idx);
-	__flush_tlb_one(vaddr);
+#if HIGHMEM_DEBUG
+	{
+		unsigned int idx;
+		idx = type + KM_TYPE_NR * smp_processor_id();
+
+		if (vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx))
+			BUG();
+
+		/*
+		 * force other mappings to Oops if they'll try to access
+		 * this pte without first remap it
+		 */
+		pte_clear(kmap_pte - idx);
+		__flush_tlb_one(vaddr);
+	}
 #endif
+	pagefault_enable();
 }
-
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_HIGHMEM_H */

Index: linux-2.6/arch/powerpc/mm/highmem.c
===================================================================
@@ -39,7 +39,7 @@ void *kmap_atomic_prot(struct page *page
 	if (!PageHighMem(page))
 		return page_address(page);
 
-	debug_kmap_atomic(type);
+	type = kmap_atomic_idx_push();
 	idx = type + KM_TYPE_NR*smp_processor_id();
 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
 #ifdef CONFIG_DEBUG_HIGHMEM

@@ -54,23 +54,29 @@ EXPORT_SYMBOL(kmap_atomic_prot);
 
 void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
 {
-#ifdef CONFIG_DEBUG_HIGHMEM
 	unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
-	enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
 
 	if (vaddr < __fix_to_virt(FIX_KMAP_END)) {
 		pagefault_enable();
 		return;
 	}
 
-	BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+	type = kmap_atomic_idx_pop();
 
-	/*
-	 * force other mappings to Oops if they'll try to access
-	 * this pte without first remap it
-	 */
-	pte_clear(&init_mm, vaddr, kmap_pte-idx);
-	local_flush_tlb_page(NULL, vaddr);
+#ifdef CONFIG_DEBUG_HIGHMEM
+	{
+		unsigned int idx;
+
+		idx = type + KM_TYPE_NR * smp_processor_id();
+		BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+
+		/*
+		 * force other mappings to Oops if they'll try to access
+		 * this pte without first remap it
+		 */
+		pte_clear(&init_mm, vaddr, kmap_pte-idx);
+		local_flush_tlb_page(NULL, vaddr);
+	}
 #endif
 	pagefault_enable();
 }

Index: linux-2.6/arch/sparc/mm/highmem.c
===================================================================
@@ -39,7 +39,7 @@ void *kmap_atomic(struct page *page, enu
 	if (!PageHighMem(page))
 		return page_address(page);
 
-	debug_kmap_atomic(type);
+	type = kmap_atomic_idx_push();
 	idx = type + KM_TYPE_NR*smp_processor_id();
 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
 

@@ -67,37 +67,42 @@ EXPORT_SYMBOL(kmap_atomic);
 
 void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
 {
-#ifdef CONFIG_DEBUG_HIGHMEM
 	unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
-	unsigned long idx = type + KM_TYPE_NR*smp_processor_id();
 
 	if (vaddr < FIXADDR_START) { // FIXME
 		pagefault_enable();
 		return;
 	}
 
-	BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN+idx));
+	type = kmap_atomic_idx_pop();
 
-/* XXX Fix - Anton */
+#ifdef CONFIG_DEBUG_HIGHMEM
+	{
+		unsigned long idx;
+
+		idx = type + KM_TYPE_NR * smp_processor_id();
+		BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN+idx));
+
+		/* XXX Fix - Anton */
 #if 0
-	__flush_cache_one(vaddr);
+		__flush_cache_one(vaddr);
 #else
-	flush_cache_all();
+		flush_cache_all();
 #endif
 
-	/*
-	 * force other mappings to Oops if they'll try to access
-	 * this pte without first remap it
-	 */
-	pte_clear(&init_mm, vaddr, kmap_pte-idx);
-/* XXX Fix - Anton */
+		/*
+		 * force other mappings to Oops if they'll try to access
+		 * this pte without first remap it
+		 */
+		pte_clear(&init_mm, vaddr, kmap_pte-idx);
+		/* XXX Fix - Anton */
 #if 0
-	__flush_tlb_one(vaddr);
+		__flush_tlb_one(vaddr);
 #else
-	flush_tlb_all();
+		flush_tlb_all();
 #endif
+	}
 #endif
-
 	pagefault_enable();
 }
 EXPORT_SYMBOL(kunmap_atomic_notypecheck);

Index: linux-2.6/arch/x86/mm/highmem_32.c
===================================================================
@@ -38,8 +38,7 @@ void *kmap_atomic_prot(struct page *page
 	if (!PageHighMem(page))
 		return page_address(page);
 
-	debug_kmap_atomic(type);
-
+	type = kmap_atomic_idx_push();
 	idx = type + KM_TYPE_NR*smp_processor_id();
 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
 	BUG_ON(!pte_none(*(kmap_pte-idx)));

@@ -56,22 +55,32 @@ void *kmap_atomic(struct page *page, enu
 void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
 {
 	unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
-	enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+	enum fixed_addresses idx;
+
+	if (vaddr >= __fix_to_virt(FIX_KMAP_END) &&
+	    vaddr <= __fix_to_virt(FIX_KMAP_BEGIN)) {
+
+		type = kmap_atomic_idx_pop();
+		idx = type + KM_TYPE_NR * smp_processor_id();
 
-	/*
-	 * Force other mappings to Oops if they'll try to access this pte
-	 * without first remap it.  Keeping stale mappings around is a bad idea
-	 * also, in case the page changes cacheability attributes or becomes
-	 * a protected page in a hypervisor.
-	 */
-	if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx))
+#ifdef CONFIG_DEBUG_HIGHMEM
+		WARN_ON_ONCE(idx !=
+			((vaddr - __fix_to_virt(FIX_KMAP_BEGIN)) >> PAGE_SHIFT));
+#endif
+		/*
+		 * Force other mappings to Oops if they'll try to access this
+		 * pte without first remap it.  Keeping stale mappings around
+		 * is a bad idea also, in case the page changes cacheability
+		 * attributes or becomes a protected page in a hypervisor.
+		 */
 		kpte_clear_flush(kmap_pte-idx, vaddr);
-	else {
+	}
 #ifdef CONFIG_DEBUG_HIGHMEM
+	else {
 		BUG_ON(vaddr < PAGE_OFFSET);
 		BUG_ON(vaddr >= (unsigned long)high_memory);
-#endif
 	}
+#endif
 
 	pagefault_enable();
 }

Index: linux-2.6/include/linux/highmem.h
===================================================================
@@ -28,18 +28,6 @@ static inline void invalidate_kernel_vma
 
 #include <asm/kmap_types.h>
 
-#ifdef CONFIG_DEBUG_HIGHMEM
-
-void debug_kmap_atomic(enum km_type type);
-
-#else
-
-static inline void debug_kmap_atomic(enum km_type type)
-{
-}
-
-#endif
-
 #ifdef CONFIG_HIGHMEM
 #include <asm/highmem.h>
 

@@ -49,6 +37,26 @@ extern unsigned long totalhigh_pages;
 
 void kmap_flush_unused(void);
 
+DECLARE_PER_CPU(int, __kmap_atomic_idx);
+
+static inline int kmap_atomic_idx_push(void)
+{
+	int idx = __get_cpu_var(__kmap_atomic_idx)++;
+#ifdef CONFIG_DEBUG_HIGHMEM
+	BUG_ON(idx > KM_TYPE_NR);
+#endif
+	return idx;
+}
+
+static inline int kmap_atomic_idx_pop(void)
+{
+	int idx = --__get_cpu_var(__kmap_atomic_idx);
+#ifdef CONFIG_DEBUG_HIGHMEM
+	BUG_ON(idx < 0);
+#endif
+	return idx;
+}
+
 #else /* CONFIG_HIGHMEM */
 
 static inline unsigned int nr_free_highpages(void) { return 0; }

71 lines not on this page · raw message

Index: linux-2.6/arch/x86/mm/iomap_32.c
===================================================================
@@ -62,7 +62,7 @@ void *kmap_atomic_prot_pfn(unsigned long
 
 	pagefault_disable();
 
-	debug_kmap_atomic(type);
+	type = kmap_atomic_idx_push();
 	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));

@@ -94,16 +94,26 @@ void
 iounmap_atomic(void *kvaddr, enum km_type type)
 {
 	unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
-	enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+	enum fixed_addresses idx;
 
-	/*
-	 * Force other mappings to Oops if they'll try to access this pte
-	 * without first remap it.  Keeping stale mappings around is a bad idea
-	 * also, in case the page changes cacheability attributes or becomes
-	 * a protected page in a hypervisor.
-	 */
-	if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx))
+	if (vaddr >= __fix_to_virt(FIX_KMAP_END) &&
+	    vaddr <= __fix_to_virt(FIX_KMAP_BEGIN)) {
+
+		type = kmap_atomic_idx_pop();
+		idx = type + KM_TYPE_NR * smp_processor_id();
+
+#ifdef CONFIG_DEBUG_HIGHMEM
+		WARN_ON_ONCE(idx !=
+			((vaddr - __fix_to_virt(FIX_KMAP_BEGIN)) >> PAGE_SHIFT));
+#endif
+		/*
+		 * Force other mappings to Oops if they'll try to access this
+		 * pte without first remap it.  Keeping stale mappings around
+		 * is a bad idea also, in case the page changes cacheability
+		 * attributes or becomes a protected page in a hypervisor.
+		 */
 		kpte_clear_flush(kmap_pte-idx, vaddr);
+	}
 
 	pagefault_enable();
 }

Index: linux-2.6/arch/frv/include/asm/highmem.h
===================================================================
@@ -112,34 +112,6 @@ extern struct page *kmap_atomic_to_page(
 	(void *) damlr;										  \
 })
 
-static inline void *kmap_atomic(struct page *page, enum km_type type)
-{
-	unsigned long paddr;
-
-	pagefault_disable();
-	type = kmap_atomic_idx_push();
-	paddr = page_to_phys(page);
-
-	switch (type) {
-        case 0:		return __kmap_atomic_primary(0, paddr, 2);
-        case 1:		return __kmap_atomic_primary(1, paddr, 3);
-        case 2:		return __kmap_atomic_primary(2, paddr, 4);
-        case 3:		return __kmap_atomic_primary(3, paddr, 5);
-        case 4:		return __kmap_atomic_primary(4, paddr, 6);
-        case 5:		return __kmap_atomic_primary(5, paddr, 7);
-        case 6:		return __kmap_atomic_primary(6, paddr, 8);
-        case 7:		return __kmap_atomic_primary(7, paddr, 9);
-        case 8:		return __kmap_atomic_primary(8, paddr, 10);
-
-	case 9 ... 9 + NR_TLB_LINES - 1:
-		return __kmap_atomic_secondary(type - 9, paddr);
-
-	default:
-		BUG();
-		return NULL;
-	}
-}
-
 #define __kunmap_atomic_primary(type, ampr)				\
 do {									\
 	asm volatile("movgs gr0,dampr"#ampr"\n" ::: "memory");		\

@@ -152,29 +124,8 @@ do {									\
 	asm volatile("tlbpr %0,gr0,#4,#1" : : "r"(vaddr) : "memory");	\
 } while(0)
 
-static inline void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
-{
-	type = kmap_atomic_idx_pop();
-	switch (type) {
-        case 0:		__kunmap_atomic_primary(0, 2);	break;
-        case 1:		__kunmap_atomic_primary(1, 3);	break;
-        case 2:		__kunmap_atomic_primary(2, 4);	break;
-        case 3:		__kunmap_atomic_primary(3, 5);	break;
-        case 4:		__kunmap_atomic_primary(4, 6);	break;
-        case 5:		__kunmap_atomic_primary(5, 7);	break;
-        case 6:		__kunmap_atomic_primary(6, 8);	break;
-        case 7:		__kunmap_atomic_primary(7, 9);	break;
-        case 8:		__kunmap_atomic_primary(8, 10);	break;
-
-	case 9 ... 9 + NR_TLB_LINES - 1:
-		__kunmap_atomic_secondary(type - 9, kvaddr);
-		break;
-
-	default:
-		BUG();
-	}
-	pagefault_enable();
-}
+void *kmap_atomic(struct page *page, enum km_type type);
+void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
 
 #endif /* !__ASSEMBLY__ */
 

Index: linux-2.6/arch/frv/mm/cache-page.c
===================================================================
@@ -26,11 +26,11 @@ void flush_dcache_page(struct page *page
 
 	dampr2 = __get_DAMPR(2);
 
-	vaddr = kmap_atomic(page, __KM_CACHE);
+	vaddr = __kmap_atomic_primary(0, page, 2);
 
 	frv_dcache_writeback((unsigned long) vaddr, (unsigned long) vaddr + PAGE_SIZE);
 
-	kunmap_atomic(vaddr, __KM_CACHE);
+	__kunmap_atomic_primary(0, 2);
 
 	if (dampr2) {
 		__set_DAMPR(2, dampr2);

@@ -54,12 +54,12 @@ void flush_icache_user_range(struct vm_a
 
 	dampr2 = __get_DAMPR(2);
 
-	vaddr = kmap_atomic(page, __KM_CACHE);
+	vaddr = __kmap_atomic_primary(0, page, 2);
 
 	start = (start & ~PAGE_MASK) | (unsigned long) vaddr;
 	frv_cache_wback_inv(start, start + len);
 
-	kunmap_atomic(vaddr, __KM_CACHE);
+	__kunmap_atomic_primary(0, 2);
 
 	if (dampr2) {
 		__set_DAMPR(2, dampr2);

53 lines not on this page · raw message

Index: linux-2.6/arch/frv/mb93090-mb00/pci-dma.c
===================================================================
@@ -61,14 +61,14 @@ int dma_map_sg(struct device *dev, struc
 	dampr2 = __get_DAMPR(2);
 
 	for (i = 0; i < nents; i++) {
-		vaddr = kmap_atomic(sg_page(&sg[i]), __KM_CACHE);
+		vaddr = __kmap_atomic_primary(0, sg_page(&sg[i]), 2);
 
 		frv_dcache_writeback((unsigned long) vaddr,
 				     (unsigned long) vaddr + PAGE_SIZE);
 
 	}
 
-	kunmap_atomic(vaddr, __KM_CACHE);
+	__kunmap_atomic_primary(0, 2);
 	if (dampr2) {
 		__set_DAMPR(2, dampr2);
 		__set_IAMPR(2, dampr2);

Index: linux-2.6/arch/arm/include/asm/highmem.h
===================================================================
@@ -35,9 +35,9 @@ extern void kunmap_high_l1_vipt(struct p
 #ifdef CONFIG_HIGHMEM
 extern void *kmap(struct page *page);
 extern void kunmap(struct page *page);
-extern void *kmap_atomic(struct page *page, enum km_type type);
-extern void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
+extern void *kmap_atomic(struct page *page);
+extern void kunmap_atomic_notypecheck(void *kvaddr);
+extern void *kmap_atomic_pfn(unsigned long pfn);
 extern struct page *kmap_atomic_to_page(const void *ptr);
 #endif
 

Index: linux-2.6/arch/arm/include/asm/pgtable.h
===================================================================
@@ -263,10 +263,10 @@ extern struct page *empty_zero_page;
 #define pte_page(pte)		(pfn_to_page(pte_pfn(pte)))
 #define pte_offset_kernel(dir,addr)	(pmd_page_vaddr(*(dir)) + __pte_index(addr))
 
-#define pte_offset_map(dir,addr)	(__pte_map(dir, KM_PTE0) + __pte_index(addr))
-#define pte_offset_map_nested(dir,addr)	(__pte_map(dir, KM_PTE1) + __pte_index(addr))
-#define pte_unmap(pte)			__pte_unmap(pte, KM_PTE0)
-#define pte_unmap_nested(pte)		__pte_unmap(pte, KM_PTE1)
+#define pte_offset_map(dir,addr)	(__pte_map(dir) + __pte_index(addr))
+#define pte_offset_map_nested(dir,addr)	(__pte_map(dir) + __pte_index(addr))
+#define pte_unmap(pte)			__pte_unmap(pte)
+#define pte_unmap_nested(pte)		__pte_unmap(pte)
 
 #ifndef CONFIG_HIGHPTE
 #define __pte_map(dir,km)	pmd_page_vaddr(*(dir))

Index: linux-2.6/arch/arm/mm/copypage-fa.c
===================================================================
@@ -44,11 +44,11 @@ void fa_copy_user_highpage(struct page *
 {
 	void *kto, *kfrom;
 
-	kto = kmap_atomic(to, KM_USER0);
-	kfrom = kmap_atomic(from, KM_USER1);
+	kto = kmap_atomic(to);
+	kfrom = kmap_atomic(from);
 	fa_copy_user_page(kto, kfrom);
-	kunmap_atomic(kfrom, KM_USER1);
-	kunmap_atomic(kto, KM_USER0);
+	kunmap_atomic(kfrom);
+	kunmap_atomic(kto);
 }
 
 /*

@@ -58,7 +58,7 @@ void fa_copy_user_highpage(struct page *
  */
 void fa_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile("\
 	mov	r1, %2				@ 1\n\
 	mov	r2, #0				@ 1\n\

@@ -77,7 +77,7 @@ void fa_clear_user_highpage(struct page 
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 32)
 	: "r1", "r2", "r3", "ip", "lr");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns fa_user_fns __initdata = {

Index: linux-2.6/arch/arm/mm/copypage-feroceon.c
===================================================================
@@ -72,17 +72,17 @@ void feroceon_copy_user_highpage(struct 
 {
 	void *kto, *kfrom;
 
-	kto = kmap_atomic(to, KM_USER0);
-	kfrom = kmap_atomic(from, KM_USER1);
+	kto = kmap_atomic(to);
+	kfrom = kmap_atomic(from);
 	flush_cache_page(vma, vaddr, page_to_pfn(from));
 	feroceon_copy_user_page(kto, kfrom);
-	kunmap_atomic(kfrom, KM_USER1);
-	kunmap_atomic(kto, KM_USER0);
+	kunmap_atomic(kfrom);
+	kunmap_atomic(kto);
 }
 
 void feroceon_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile ("\
 	mov	r1, %2				\n\
 	mov	r2, #0				\n\

@@ -102,7 +102,7 @@ void feroceon_clear_user_highpage(struct
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 32)
 	: "r1", "r2", "r3", "r4", "r5", "r6", "r7", "ip", "lr");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns feroceon_user_fns __initdata = {

Index: linux-2.6/arch/arm/mm/copypage-v3.c
===================================================================
@@ -42,11 +42,11 @@ void v3_copy_user_highpage(struct page *
 {
 	void *kto, *kfrom;
 
-	kto = kmap_atomic(to, KM_USER0);
-	kfrom = kmap_atomic(from, KM_USER1);
+	kto = kmap_atomic(to);
+	kfrom = kmap_atomic(from);
 	v3_copy_user_page(kto, kfrom);
-	kunmap_atomic(kfrom, KM_USER1);
-	kunmap_atomic(kto, KM_USER0);
+	kunmap_atomic(kfrom);
+	kunmap_atomic(kto);
 }
 
 /*

@@ -56,7 +56,7 @@ void v3_copy_user_highpage(struct page *
  */
 void v3_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile("\n\
 	mov	r1, %2				@ 1\n\
 	mov	r2, #0				@ 1\n\

@@ -72,7 +72,7 @@ void v3_clear_user_highpage(struct page 
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 64)
 	: "r1", "r2", "r3", "ip", "lr");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns v3_user_fns __initdata = {

Index: linux-2.6/arch/arm/mm/copypage-v4mc.c
===================================================================
@@ -71,7 +71,7 @@ mc_copy_user_page(void *from, void *to)
 void v4_mc_copy_user_highpage(struct page *to, struct page *from,
 	unsigned long vaddr, struct vm_area_struct *vma)
 {
-	void *kto = kmap_atomic(to, KM_USER1);
+	void *kto = kmap_atomic(to);
 
 	if (test_and_clear_bit(PG_dcache_dirty, &from->flags))
 		__flush_dcache_page(page_mapping(from), from);

@@ -85,7 +85,7 @@ void v4_mc_copy_user_highpage(struct pag
 
 	spin_unlock(&minicache_lock);
 
-	kunmap_atomic(kto, KM_USER1);
+	kunmap_atomic(kto);
 }
 
 /*

@@ -93,7 +93,7 @@ void v4_mc_copy_user_highpage(struct pag
  */
 void v4_mc_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile("\
 	mov	r1, %2				@ 1\n\
 	mov	r2, #0				@ 1\n\

@@ -111,7 +111,7 @@ void v4_mc_clear_user_highpage(struct pa
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 64)
 	: "r1", "r2", "r3", "ip", "lr");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns v4_mc_user_fns __initdata = {

Index: linux-2.6/arch/arm/mm/copypage-v4wb.c
===================================================================
@@ -52,12 +52,12 @@ void v4wb_copy_user_highpage(struct page
 {
 	void *kto, *kfrom;
 
-	kto = kmap_atomic(to, KM_USER0);
-	kfrom = kmap_atomic(from, KM_USER1);
+	kto = kmap_atomic(to);
+	kfrom = kmap_atomic(from);
 	flush_cache_page(vma, vaddr, page_to_pfn(from));
 	v4wb_copy_user_page(kto, kfrom);
-	kunmap_atomic(kfrom, KM_USER1);
-	kunmap_atomic(kto, KM_USER0);
+	kunmap_atomic(kfrom);
+	kunmap_atomic(kto);
 }
 
 /*

@@ -67,7 +67,7 @@ void v4wb_copy_user_highpage(struct page
  */
 void v4wb_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile("\
 	mov	r1, %2				@ 1\n\
 	mov	r2, #0				@ 1\n\

@@ -86,7 +86,7 @@ void v4wb_clear_user_highpage(struct pag
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 64)
 	: "r1", "r2", "r3", "ip", "lr");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns v4wb_user_fns __initdata = {

Index: linux-2.6/arch/arm/mm/copypage-v4wt.c
===================================================================
@@ -48,11 +48,11 @@ void v4wt_copy_user_highpage(struct page
 {
 	void *kto, *kfrom;
 
-	kto = kmap_atomic(to, KM_USER0);
-	kfrom = kmap_atomic(from, KM_USER1);
+	kto = kmap_atomic(to);
+	kfrom = kmap_atomic(from);
 	v4wt_copy_user_page(kto, kfrom);
-	kunmap_atomic(kfrom, KM_USER1);
-	kunmap_atomic(kto, KM_USER0);
+	kunmap_atomic(kfrom);
+	kunmap_atomic(kto);
 }
 
 /*

@@ -62,7 +62,7 @@ void v4wt_copy_user_highpage(struct page
  */
 void v4wt_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile("\
 	mov	r1, %2				@ 1\n\
 	mov	r2, #0				@ 1\n\

@@ -79,7 +79,7 @@ void v4wt_clear_user_highpage(struct pag
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 64)
 	: "r1", "r2", "r3", "ip", "lr");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns v4wt_user_fns __initdata = {

Index: linux-2.6/arch/arm/mm/copypage-v6.c
===================================================================
@@ -38,12 +38,12 @@ static void v6_copy_user_highpage_nonali
 {
 	void *kto, *kfrom;
 
-	kfrom = kmap_atomic(from, KM_USER0);
-	kto = kmap_atomic(to, KM_USER1);
+	kfrom = kmap_atomic(from);
+	kto = kmap_atomic(to);
 	copy_page(kto, kfrom);
 	__cpuc_flush_dcache_area(kto, PAGE_SIZE);
-	kunmap_atomic(kto, KM_USER1);
-	kunmap_atomic(kfrom, KM_USER0);
+	kunmap_atomic(kto);
+	kunmap_atomic(kfrom);
 }
 
 /*

@@ -52,9 +52,9 @@ static void v6_copy_user_highpage_nonali
  */
 static void v6_clear_user_highpage_nonaliasing(struct page *page, unsigned long vaddr)
 {
-	void *kaddr = kmap_atomic(page, KM_USER0);
+	void *kaddr = kmap_atomic(page);
 	clear_page(kaddr);
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 /*

Index: linux-2.6/arch/arm/mm/copypage-xsc3.c
===================================================================
@@ -75,12 +75,12 @@ void xsc3_mc_copy_user_highpage(struct p
 {
 	void *kto, *kfrom;
 
-	kto = kmap_atomic(to, KM_USER0);
-	kfrom = kmap_atomic(from, KM_USER1);
+	kto = kmap_atomic(to);
+	kfrom = kmap_atomic(from);
 	flush_cache_page(vma, vaddr, page_to_pfn(from));
 	xsc3_mc_copy_user_page(kto, kfrom);
-	kunmap_atomic(kfrom, KM_USER1);
-	kunmap_atomic(kto, KM_USER0);
+	kunmap_atomic(kfrom);
+	kunmap_atomic(kto);
 }
 
 /*

@@ -90,7 +90,7 @@ void xsc3_mc_copy_user_highpage(struct p
  */
 void xsc3_mc_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile ("\
 	mov	r1, %2				\n\
 	mov	r2, #0				\n\

@@ -105,7 +105,7 @@ void xsc3_mc_clear_user_highpage(struct 
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 32)
 	: "r1", "r2", "r3");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns xsc3_mc_user_fns __initdata = {

Index: linux-2.6/arch/arm/mm/copypage-xscale.c
===================================================================
@@ -93,7 +93,7 @@ mc_copy_user_page(void *from, void *to)
 void xscale_mc_copy_user_highpage(struct page *to, struct page *from,
 	unsigned long vaddr, struct vm_area_struct *vma)
 {
-	void *kto = kmap_atomic(to, KM_USER1);
+	void *kto = kmap_atomic(to);
 
 	if (test_and_clear_bit(PG_dcache_dirty, &from->flags))
 		__flush_dcache_page(page_mapping(from), from);

@@ -107,7 +107,7 @@ void xscale_mc_copy_user_highpage(struct
 
 	spin_unlock(&minicache_lock);
 
-	kunmap_atomic(kto, KM_USER1);
+	kunmap_atomic(kto);
 }
 
 /*

@@ -116,7 +116,7 @@ void xscale_mc_copy_user_highpage(struct
 void
 xscale_mc_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile(
 	"mov	r1, %2				\n\
 	mov	r2, #0				\n\

@@ -133,7 +133,7 @@ xscale_mc_clear_user_highpage(struct pag
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 32)
 	: "r1", "r2", "r3", "ip");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns xscale_mc_user_fns __initdata = {

Index: linux-2.6/arch/arm/mm/highmem.c
===================================================================
@@ -36,7 +36,7 @@ void kunmap(struct page *page)
 }
 EXPORT_SYMBOL(kunmap);
 
-void *kmap_atomic(struct page *page, enum km_type type)
+void *kmap_atomic(struct page *page)
 {
 	unsigned int idx;
 	unsigned long vaddr;

@@ -84,7 +84,7 @@ void *kmap_atomic(struct page *page, enu
 }
 EXPORT_SYMBOL(kmap_atomic);
 
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void kunmap_atomic_notypecheck(void *kvaddr)
 {
 	unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
 	unsigned int idx;

@@ -110,7 +110,7 @@ void kunmap_atomic_notypecheck(void *kva
 }
 EXPORT_SYMBOL(kunmap_atomic_notypecheck);
 
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
 {
 	unsigned int idx;
 	unsigned long vaddr;

Index: linux-2.6/arch/frv/include/asm/highmem.h
===================================================================
@@ -124,8 +124,8 @@ do {									\
 	asm volatile("tlbpr %0,gr0,#4,#1" : : "r"(vaddr) : "memory");	\
 } while(0)
 
-void *kmap_atomic(struct page *page, enum km_type type);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
+void *kmap_atomic(struct page *page);
+void kunmap_atomic_notypecheck(void *kvaddr);
 
 #endif /* !__ASSEMBLY__ */
 

Index: linux-2.6/arch/frv/include/asm/pgtable.h
===================================================================
@@ -451,11 +451,11 @@ static inline pte_t pte_modify(pte_t pte
 
 #if defined(CONFIG_HIGHPTE)
 #define pte_offset_map(dir, address) \
-	((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE0) + pte_index(address))
+	((pte_t *)kmap_atomic(pmd_page(*(dir))) + pte_index(address))
 #define pte_offset_map_nested(dir, address) \
-	((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE1) + pte_index(address))
-#define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
-#define pte_unmap_nested(pte) kunmap_atomic((pte), KM_PTE1)
+	((pte_t *)kmap_atomic(pmd_page(*(dir))) + pte_index(address))
+#define pte_unmap(pte) kunmap_atomic(pte)
+#define pte_unmap_nested(pte) kunmap_atomic((pte))
 #else
 #define pte_offset_map(dir, address) \
 	((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address))

Index: linux-2.6/arch/frv/mm/highmem.c
===================================================================
@@ -37,7 +37,7 @@ struct page *kmap_atomic_to_page(void *p
 	return virt_to_page(ptr);
 }
 
-void *kmap_atomic(struct page *page, enum km_type type)
+void *kmap_atomic(struct page *page)
 {
 	unsigned long paddr;
 

@@ -65,7 +65,7 @@ void *kmap_atomic(struct page *page, enu
 }
 EXPORT_SYMBOL(kmap_atomic);
 
-void kunmap_atomic(void *kvaddr, enum km_type type)
+void kunmap_atomic(void *kvaddr)
 {
 	type = kmap_atomic_idx_pop();
 	switch (type) {

Index: linux-2.6/arch/microblaze/include/asm/pgtable.h
===================================================================
@@ -497,12 +497,12 @@ static inline pmd_t *pmd_offset(pgd_t *d
 #define pte_offset_kernel(dir, addr)	\
 	((pte_t *) pmd_page_kernel(*(dir)) + pte_index(addr))
 #define pte_offset_map(dir, addr)		\
-	((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE0) + pte_index(addr))
+	((pte_t *) kmap_atomic(pmd_page(*(dir))) + pte_index(addr))
 #define pte_offset_map_nested(dir, addr)	\
-	((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE1) + pte_index(addr))
+	((pte_t *) kmap_atomic(pmd_page(*(dir))) + pte_index(addr))
 
-#define pte_unmap(pte)		kunmap_atomic(pte, KM_PTE0)
-#define pte_unmap_nested(pte)	kunmap_atomic(pte, KM_PTE1)
+#define pte_unmap(pte)		kunmap_atomic(pte)
+#define pte_unmap_nested(pte)	kunmap_atomic(pte)
 
 /* Encode and decode a nonlinear file mapping entry */
 #define PTE_FILE_MAX_BITS	29

Index: linux-2.6/arch/mips/include/asm/highmem.h
===================================================================
@@ -47,9 +47,9 @@ extern void kunmap_high(struct page *pag
 
 extern void *__kmap(struct page *page);
 extern void __kunmap(struct page *page);
-extern void *__kmap_atomic(struct page *page, enum km_type type);
-extern void __kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
+extern void *__kmap_atomic(struct page *page);
+extern void __kunmap_atomic_notypecheck(void *kvaddr);
+extern void *kmap_atomic_pfn(unsigned long pfn);
 extern struct page *__kmap_atomic_to_page(void *ptr);
 
 #define kmap			__kmap

Index: linux-2.6/arch/mips/mm/c-r4k.c
===================================================================
@@ -498,7 +498,7 @@ static inline void local_r4k_flush_cache
 		if (map_coherent)
 			vaddr = kmap_coherent(page, addr);
 		else
-			vaddr = kmap_atomic(page, KM_USER0);
+			vaddr = kmap_atomic(page);
 		addr = (unsigned long)vaddr;
 	}
 

@@ -521,7 +521,7 @@ static inline void local_r4k_flush_cache
 		if (map_coherent)
 			kunmap_coherent();
 		else
-			kunmap_atomic(vaddr, KM_USER0);
+			kunmap_atomic(vaddr);
 	}
 }
 

Index: linux-2.6/arch/mips/mm/highmem.c
===================================================================
@@ -41,7 +41,7 @@ EXPORT_SYMBOL(__kunmap);
  * kmaps are appropriate for short, tight code paths only.
  */
 
-void *__kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
 {
 	enum fixed_addresses idx;
 	unsigned long vaddr;

@@ -64,7 +64,7 @@ void *__kmap_atomic(struct page *page, e
 }
 EXPORT_SYMBOL(__kmap_atomic);
 
-void __kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic_notypecheck(void *kvaddr)
 {
 	unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
 	unsigned int idx;

@@ -95,7 +95,7 @@ EXPORT_SYMBOL(__kunmap_atomic);
  * This is the same as kmap_atomic() but can map memory that doesn't
  * have a struct page associated with it.
  */
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
 {
 	enum fixed_addresses idx;
 	unsigned long vaddr;

Index: linux-2.6/arch/mips/mm/init.c
===================================================================
@@ -209,21 +209,21 @@ void copy_user_highpage(struct page *to,
 {
 	void *vfrom, *vto;
 
-	vto = kmap_atomic(to, KM_USER1);
+	vto = kmap_atomic(to);
 	if (cpu_has_dc_aliases &&
 	    page_mapped(from) && !Page_dcache_dirty(from)) {
 		vfrom = kmap_coherent(from, vaddr);
 		copy_page(vto, vfrom);
 		kunmap_coherent();
 	} else {
-		vfrom = kmap_atomic(from, KM_USER0);
+		vfrom = kmap_atomic(from);
 		copy_page(vto, vfrom);
-		kunmap_atomic(vfrom, KM_USER0);
+		kunmap_atomic(vfrom);
 	}
 	if ((!cpu_has_ic_fills_f_dc) ||
 	    pages_do_alias((unsigned long)vto, vaddr & PAGE_MASK))
 		flush_data_cache_page((unsigned long)vto);
-	kunmap_atomic(vto, KM_USER1);
+	kunmap_atomic(vto);
 	/* Make sure this page is cleared on other CPU's too before using it */
 	smp_wmb();
 }

Index: linux-2.6/arch/mn10300/include/asm/highmem.h
===================================================================
@@ -70,7 +70,7 @@ static inline void kunmap(struct page *p
  * be used in IRQ contexts, so in some (very limited) cases we need
  * it.
  */
-static inline unsigned long kmap_atomic(struct page *page, enum km_type type)
+static inline unsigned long kmap_atomic(struct page *page)
 {
 	enum fixed_addresses idx;
 	unsigned long vaddr;

@@ -92,7 +92,7 @@ static inline unsigned long kmap_atomic(
 	return vaddr;
 }
 
-static inline void kunmap_atomic_notypecheck(unsigned long vaddr, enum km_type type)
+static inline void kunmap_atomic_notypecheck(unsigned long vaddr)
 {
 	if (vaddr < FIXADDR_START) { /* FIXME */
 		pagefault_enable();

Index: linux-2.6/arch/powerpc/include/asm/highmem.h
===================================================================
@@ -60,9 +60,9 @@ extern pte_t *pkmap_page_table;
 
 extern void *kmap_high(struct page *page);
 extern void kunmap_high(struct page *page);
-extern void *kmap_atomic_prot(struct page *page, enum km_type type,
+extern void *kmap_atomic_prot(struct page *page,
 			      pgprot_t prot);
-extern void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
+extern void kunmap_atomic_notypecheck(void *kvaddr);
 
 static inline void *kmap(struct page *page)
 {

@@ -80,7 +80,7 @@ static inline void kunmap(struct page *p
 	kunmap_high(page);
 }
 
-static inline void *kmap_atomic(struct page *page, enum km_type type)
+static inline void *kmap_atomic(struct page *page)
 {
 	return kmap_atomic_prot(page, type, kmap_prot);
 }

Index: linux-2.6/arch/powerpc/include/asm/pgtable-ppc32.h
===================================================================
@@ -308,12 +308,12 @@ static inline void __ptep_set_access_fla
 #define pte_offset_kernel(dir, addr)	\
 	((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(addr))
 #define pte_offset_map(dir, addr)		\
-	((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE0) + pte_index(addr))
+	((pte_t *) kmap_atomic(pmd_page(*(dir))) + pte_index(addr))
 #define pte_offset_map_nested(dir, addr)	\
-	((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE1) + pte_index(addr))
+	((pte_t *) kmap_atomic(pmd_page(*(dir))) + pte_index(addr))
 
-#define pte_unmap(pte)		kunmap_atomic(pte, KM_PTE0)
-#define pte_unmap_nested(pte)	kunmap_atomic(pte, KM_PTE1)
+#define pte_unmap(pte)		kunmap_atomic(pte)
+#define pte_unmap_nested(pte)	kunmap_atomic(pte)
 
 /*
  * Encode and decode a swap entry.

Index: linux-2.6/arch/powerpc/kvm/book3s.c
===================================================================
@@ -423,14 +423,14 @@ static void kvmppc_patch_dcbz(struct kvm
 	hpage_offset /= 4;
 
 	get_page(hpage);
-	page = kmap_atomic(hpage, KM_USER0);
+	page = kmap_atomic(hpage);
 
 	/* patch dcbz into reserved instruction, so we trap */
 	for (i=hpage_offset; i < hpage_offset + (HW_PAGE_SIZE / 4); i++)
 		if ((page[i] & 0xff0007ff) == INS_DCBZ)
 			page[i] &= 0xfffffff7;
 
-	kunmap_atomic(page, KM_USER0);
+	kunmap_atomic(page);
 	put_page(hpage);
 }
 

Index: linux-2.6/arch/powerpc/mm/dma-noncoherent.c
===================================================================
@@ -369,7 +369,7 @@ static inline void __dma_sync_page_highm
 
 		/* Sync this buffer segment */
 		__dma_sync((void *)start, seg_size, direction);
-		kunmap_atomic((void *)start, KM_PPC_SYNC_PAGE);
+		kunmap_atomic((void *)start);
 		seg_nr++;
 
 		/* Calculate next buffer segment size */

Index: linux-2.6/arch/powerpc/mm/highmem.c
===================================================================
@@ -29,7 +29,7 @@
  * be used in IRQ contexts, so in some (very limited) cases we need
  * it.
  */
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
 {
 	unsigned int idx;
 	unsigned long vaddr;

@@ -52,7 +52,7 @@ void *kmap_atomic_prot(struct page *page
 }
 EXPORT_SYMBOL(kmap_atomic_prot);
 
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void kunmap_atomic_notypecheck(void *kvaddr)
 {
 	unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
 

Index: linux-2.6/arch/powerpc/mm/mem.c
===================================================================
@@ -433,9 +433,9 @@ void flush_dcache_icache_page(struct pag
 #endif
 #ifdef CONFIG_BOOKE
 	{
-		void *start = kmap_atomic(page, KM_PPC_SYNC_ICACHE);
+		void *start = kmap_atomic(page);
 		__flush_dcache_icache(start);
-		kunmap_atomic(start, KM_PPC_SYNC_ICACHE);
+		kunmap_atomic(start);
 	}
 #elif defined(CONFIG_8xx) || defined(CONFIG_PPC64)
 	/* On 8xx there is no need to kmap since highmem is not supported */

Index: linux-2.6/arch/s390/crypto/des_s390.c
===================================================================
@@ -143,7 +143,7 @@ static int ecb_des_encrypt(struct blkcip
 	struct blkcipher_walk walk;
 
 	blkcipher_walk_init(&walk, dst, src, nbytes);
-	return ecb_desall_crypt(desc, KM_DEA_ENCRYPT, sctx->key, &walk);
+	return ecb_desall_crypt(desc, sctx->key, &walk);
 }
 
 static int ecb_des_decrypt(struct blkcipher_desc *desc,

@@ -154,7 +154,7 @@ static int ecb_des_decrypt(struct blkcip
 	struct blkcipher_walk walk;
 
 	blkcipher_walk_init(&walk, dst, src, nbytes);
-	return ecb_desall_crypt(desc, KM_DEA_DECRYPT, sctx->key, &walk);
+	return ecb_desall_crypt(desc, sctx->key, &walk);
 }
 
 static struct crypto_alg ecb_des_alg = {

@@ -296,7 +296,7 @@ static int ecb_des3_192_encrypt(struct b
 	struct blkcipher_walk walk;
 
 	blkcipher_walk_init(&walk, dst, src, nbytes);
-	return ecb_desall_crypt(desc, KM_TDEA_192_ENCRYPT, sctx->key, &walk);
+	return ecb_desall_crypt(desc, sctx->key, &walk);
 }
 
 static int ecb_des3_192_decrypt(struct blkcipher_desc *desc,

@@ -307,7 +307,7 @@ static int ecb_des3_192_decrypt(struct b
 	struct blkcipher_walk walk;
 
 	blkcipher_walk_init(&walk, dst, src, nbytes);
-	return ecb_desall_crypt(desc, KM_TDEA_192_DECRYPT, sctx->key, &walk);
+	return ecb_desall_crypt(desc, sctx->key, &walk);
 }
 
 static struct crypto_alg ecb_des3_192_alg = {

Index: linux-2.6/arch/sh/mm/cache-sh4.c
===================================================================
@@ -244,7 +244,7 @@ static void sh4_flush_cache_page(void *a
 		if (map_coherent)
 			vaddr = kmap_coherent(page, address);
 		else
-			vaddr = kmap_atomic(page, KM_USER0);
+			vaddr = kmap_atomic(page);
 
 		address = (unsigned long)vaddr;
 	}

@@ -259,7 +259,7 @@ static void sh4_flush_cache_page(void *a
 		if (map_coherent)
 			kunmap_coherent(vaddr);
 		else
-			kunmap_atomic(vaddr, KM_USER0);
+			kunmap_atomic(vaddr);
 	}
 }
 

Index: linux-2.6/arch/sh/mm/cache.c
===================================================================
@@ -95,7 +95,7 @@ void copy_user_highpage(struct page *to,
 {
 	void *vfrom, *vto;
 
-	vto = kmap_atomic(to, KM_USER1);
+	vto = kmap_atomic(to);
 
 	if (boot_cpu_data.dcache.n_aliases && page_mapped(from) &&
 	    !test_bit(PG_dcache_dirty, &from->flags)) {

@@ -103,15 +103,15 @@ void copy_user_highpage(struct page *to,
 		copy_page(vto, vfrom);
 		kunmap_coherent(vfrom);
 	} else {
-		vfrom = kmap_atomic(from, KM_USER0);
+		vfrom = kmap_atomic(from);
 		copy_page(vto, vfrom);
-		kunmap_atomic(vfrom, KM_USER0);
+		kunmap_atomic(vfrom);
 	}
 
 	if (pages_do_alias((unsigned long)vto, vaddr & PAGE_MASK))
 		__flush_purge_region(vto, PAGE_SIZE);
 
-	kunmap_atomic(vto, KM_USER1);
+	kunmap_atomic(vto);
 	/* Make sure this page is cleared on other CPU's too before using it */
 	smp_wmb();
 }

@@ -119,14 +119,14 @@ EXPORT_SYMBOL(copy_user_highpage);
 
 void clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *kaddr = kmap_atomic(page, KM_USER0);
+	void *kaddr = kmap_atomic(page);
 
 	clear_page(kaddr);
 
 	if (pages_do_alias((unsigned long)kaddr, vaddr & PAGE_MASK))
 		__flush_purge_region(kaddr, PAGE_SIZE);
 
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 EXPORT_SYMBOL(clear_user_highpage);
 

Index: linux-2.6/arch/sparc/include/asm/highmem.h
===================================================================
@@ -70,8 +70,8 @@ static inline void kunmap(struct page *p
 	kunmap_high(page);
 }
 
-extern void *kmap_atomic(struct page *page, enum km_type type);
-extern void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
+extern void *kmap_atomic(struct page *page);
+extern void kunmap_atomic_notypecheck(void *kvaddr);
 extern struct page *kmap_atomic_to_page(void *vaddr);
 
 #define flush_cache_kmaps()	flush_cache_all()

Index: linux-2.6/arch/sparc/mm/highmem.c
===================================================================
@@ -29,7 +29,7 @@
 #include <asm/tlbflush.h>
 #include <asm/fixmap.h>
 
-void *kmap_atomic(struct page *page, enum km_type type)
+void *kmap_atomic(struct page *page)
 {
 	unsigned long idx;
 	unsigned long vaddr;

@@ -65,7 +65,7 @@ void *kmap_atomic(struct page *page, enu
 }
 EXPORT_SYMBOL(kmap_atomic);
 
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void kunmap_atomic_notypecheck(void *kvaddr)
 {
 	unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
 

Index: linux-2.6/arch/tile/include/asm/highmem.h
===================================================================
@@ -60,12 +60,12 @@ void *kmap_fix_kpte(struct page *page, i
 /* This macro is used only in map_new_virtual() to map "page". */
 #define kmap_prot page_to_kpgprot(page)
 
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+void kunmap_atomic_notypecheck(void *kvaddr);
+void *kmap_atomic_pfn(unsigned long pfn);
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
 struct page *kmap_atomic_to_page(void *ptr);
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot);
-void *kmap_atomic(struct page *page, enum km_type type);
+void *kmap_atomic_prot(struct page *page, pgprot_t prot);
+void *kmap_atomic(struct page *page);
 void kmap_atomic_fix_kpte(struct page *page, int finished);
 
 #define flush_cache_kmaps()	do { } while (0)

Index: linux-2.6/arch/tile/include/asm/pgtable.h
===================================================================
@@ -346,11 +346,11 @@ static inline pte_t pte_modify(pte_t pte
 #if defined(CONFIG_HIGHPTE)
 extern pte_t *_pte_offset_map(pmd_t *, unsigned long address, enum km_type);
 #define pte_offset_map(dir, address) \
-	_pte_offset_map(dir, address, KM_PTE0)
+	_pte_offset_map(dir, address)
 #define pte_offset_map_nested(dir, address) \
-	_pte_offset_map(dir, address, KM_PTE1)
-#define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
-#define pte_unmap_nested(pte) kunmap_atomic(pte, KM_PTE1)
+	_pte_offset_map(dir, address)
+#define pte_unmap(pte) kunmap_atomic(pte)
+#define pte_unmap_nested(pte) kunmap_atomic(pte)
 #else
 #define pte_offset_map(dir, address) pte_offset_kernel(dir, address)
 #define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)

Index: linux-2.6/arch/tile/kernel/machine_kexec.c
===================================================================
@@ -182,13 +182,13 @@ static void kexec_find_and_set_command_l
 
 		if ((entry & IND_SOURCE)) {
 			void *va =
-				kmap_atomic_pfn(entry >> PAGE_SHIFT, KM_USER0);
+				kmap_atomic_pfn(entry >> PAGE_SHIFT);
 			r = kexec_bn2cl(va);
 			if (r) {
 				command_line = r;
 				break;
 			}
-			kunmap_atomic(va, KM_USER0);
+			kunmap_atomic(va);
 		}
 	}
 

@@ -198,7 +198,7 @@ static void kexec_find_and_set_command_l
 
 		hverr = hv_set_command_line(
 			(HV_VirtAddr) command_line, strlen(command_line));
-		kunmap_atomic(command_line, KM_USER0);
+		kunmap_atomic(command_line);
 	} else {
 		pr_info("%s: no command line found; making empty\n",
 		       __func__);

Index: linux-2.6/arch/tile/mm/highmem.c
===================================================================
@@ -137,7 +137,7 @@ static DEFINE_PER_CPU(struct kmap_amps, 
  * If we examine it earlier we are exposed to a race where it looks
  * writable earlier, but becomes immutable before we write the PTE.
  */
-static void kmap_atomic_register(struct page *page, enum km_type type,
+static void kmap_atomic_register(struct page *page,
 				 unsigned long va, pte_t *ptep, pte_t pteval)
 {
 	unsigned long flags;

@@ -240,7 +240,7 @@ void kmap_atomic_fix_kpte(struct page *p
  * When holding an atomic kmap is is not legal to sleep, so atomic
  * kmaps are appropriate for short, tight code paths only.
  */
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
 {
 	enum fixed_addresses idx;
 	unsigned long vaddr;

@@ -269,14 +269,14 @@ void *kmap_atomic_prot(struct page *page
 }
 EXPORT_SYMBOL(kmap_atomic_prot);
 
-void *kmap_atomic(struct page *page, enum km_type type)
+void *kmap_atomic(struct page *page)
 {
 	/* PAGE_NONE is a magic value that tells us to check immutability. */
 	return kmap_atomic_prot(page, type, PAGE_NONE);
 }
 EXPORT_SYMBOL(kmap_atomic);
 
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void kunmap_atomic_notypecheck(void *kvaddr)
 {
 	unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
 	enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();

@@ -306,11 +306,11 @@ EXPORT_SYMBOL(kunmap_atomic_notypecheck)
  * This API is supposed to allow us to map memory without a "struct page".
  * Currently we don't support this, though this may change in the future.
  */
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
 {
 	return kmap_atomic(pfn_to_page(pfn), type);
 }
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
 {
 	return kmap_atomic_prot(pfn_to_page(pfn), type, prot);
 }

Index: linux-2.6/arch/tile/mm/pgtable.c
===================================================================
@@ -134,7 +134,7 @@ void __set_fixmap(enum fixed_addresses i
 }
 
 #if defined(CONFIG_HIGHPTE)
-pte_t *_pte_offset_map(pmd_t *dir, unsigned long address, enum km_type type)
+pte_t *_pte_offset_map(pmd_t *dir, unsigned long address)
 {
 	pte_t *pte = kmap_atomic(pmd_page(*dir), type) +
 		(pmd_ptfn(*dir) << HV_LOG2_PAGE_TABLE_ALIGN) & ~PAGE_MASK;

Index: linux-2.6/arch/um/kernel/skas/uaccess.c
===================================================================
@@ -68,7 +68,7 @@ static int do_op_one_page(unsigned long 
 		return -1;
 
 	page = pte_page(*pte);
-	addr = (unsigned long) kmap_atomic(page, KM_UML_USERCOPY) +
+	addr = (unsigned long) kmap_atomic(page) +
 		(addr & ~PAGE_MASK);
 
 	current->thread.fault_catcher = &buf;

@@ -81,7 +81,7 @@ static int do_op_one_page(unsigned long 
 
 	current->thread.fault_catcher = NULL;
 
-	kunmap_atomic((void *)addr, KM_UML_USERCOPY);
+	kunmap_atomic((void *)addr);
 
 	return n;
 }

Index: linux-2.6/arch/x86/include/asm/highmem.h
===================================================================
@@ -59,11 +59,11 @@ extern void kunmap_high(struct page *pag
 
 void *kmap(struct page *page);
 void kunmap(struct page *page);
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot);
-void *kmap_atomic(struct page *page, enum km_type type);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+void *kmap_atomic_prot(struct page *page, pgprot_t prot);
+void *kmap_atomic(struct page *page);
+void kunmap_atomic_notypecheck(void *kvaddr);
+void *kmap_atomic_pfn(unsigned long pfn);
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
 struct page *kmap_atomic_to_page(void *ptr);
 
 #define flush_cache_kmaps()	do { } while (0)

Index: linux-2.6/arch/x86/include/asm/iomap.h
===================================================================
@@ -27,10 +27,10 @@
 #include <asm/tlbflush.h>
 
 void *
-iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+iomap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
 
 void
-iounmap_atomic(void *kvaddr, enum km_type type);
+iounmap_atomic(void *kvaddr);
 
 int
 iomap_create_wc(resource_size_t base, unsigned long size, pgprot_t *prot);

Index: linux-2.6/arch/x86/include/asm/pgtable_32.h
===================================================================
@@ -57,10 +57,10 @@ extern void set_pmd_pfn(unsigned long, u
 	((pte_t *)kmap_atomic(pmd_page(*(dir)), __KM_PTE) +		\
 	 pte_index((address)))
 #define pte_offset_map_nested(dir, address)				\
-	((pte_t *)kmap_atomic(pmd_page(*(dir)), KM_PTE1) +		\
+	((pte_t *)kmap_atomic(pmd_page(*(dir))) +		\
 	 pte_index((address)))
 #define pte_unmap(pte) kunmap_atomic((pte), __KM_PTE)
-#define pte_unmap_nested(pte) kunmap_atomic((pte), KM_PTE1)
+#define pte_unmap_nested(pte) kunmap_atomic((pte))
 #else
 #define pte_offset_map(dir, address)					\
 	((pte_t *)page_address(pmd_page(*(dir))) + pte_index((address)))

Index: linux-2.6/arch/x86/kernel/crash_dump_32.c
===================================================================
@@ -61,20 +61,20 @@ ssize_t copy_oldmem_page(unsigned long p
 	if (!is_crashed_pfn_valid(pfn))
 		return -EFAULT;
 
-	vaddr = kmap_atomic_pfn(pfn, KM_PTE0);
+	vaddr = kmap_atomic_pfn(pfn);
 
 	if (!userbuf) {
 		memcpy(buf, (vaddr + offset), csize);
-		kunmap_atomic(vaddr, KM_PTE0);
+		kunmap_atomic(vaddr);
 	} else {
 		if (!kdump_buf_page) {
 			printk(KERN_WARNING "Kdump: Kdump buffer page not"
 				" allocated\n");
-			kunmap_atomic(vaddr, KM_PTE0);
+			kunmap_atomic(vaddr);
 			return -EFAULT;
 		}
 		copy_page(kdump_buf_page, vaddr);
-		kunmap_atomic(vaddr, KM_PTE0);
+		kunmap_atomic(vaddr);
 		if (copy_to_user(buf, (kdump_buf_page + offset), csize))
 			return -EFAULT;
 	}

Index: linux-2.6/arch/x86/kvm/lapic.c
===================================================================
@@ -1175,9 +1175,9 @@ void kvm_lapic_sync_from_vapic(struct kv
 	if (!irqchip_in_kernel(vcpu->kvm) || !vcpu->arch.apic->vapic_addr)
 		return;
 
-	vapic = kmap_atomic(vcpu->arch.apic->vapic_page, KM_USER0);
+	vapic = kmap_atomic(vcpu->arch.apic->vapic_page);
 	data = *(u32 *)(vapic + offset_in_page(vcpu->arch.apic->vapic_addr));
-	kunmap_atomic(vapic, KM_USER0);
+	kunmap_atomic(vapic);
 
 	apic_set_tpr(vcpu->arch.apic, data & 0xff);
 }

@@ -1202,9 +1202,9 @@ void kvm_lapic_sync_to_vapic(struct kvm_
 		max_isr = 0;
 	data = (tpr & 0xff) | ((max_isr & 0xf0) << 8) | (max_irr << 24);
 
-	vapic = kmap_atomic(vcpu->arch.apic->vapic_page, KM_USER0);
+	vapic = kmap_atomic(vcpu->arch.apic->vapic_page);
 	*(u32 *)(vapic + offset_in_page(vcpu->arch.apic->vapic_addr)) = data;
-	kunmap_atomic(vapic, KM_USER0);
+	kunmap_atomic(vapic);
 }
 
 void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr)

Index: linux-2.6/arch/x86/kvm/paging_tmpl.h
===================================================================
@@ -89,9 +89,9 @@ static bool FNAME(cmpxchg_gpte)(struct k
 
 	page = gfn_to_page(kvm, table_gfn);
 
-	table = kmap_atomic(page, KM_USER0);
+	table = kmap_atomic(page);
 	ret = CMPXCHG(&table[index], orig_pte, new_pte);
-	kunmap_atomic(table, KM_USER0);
+	kunmap_atomic(table);
 
 	kvm_release_page_dirty(page);
 

Index: linux-2.6/arch/x86/kvm/x86.c
===================================================================
@@ -934,12 +934,12 @@ static void kvm_write_guest_time(struct 
 	 */
 	vcpu->hv_clock.version += 2;
 
-	shared_kaddr = kmap_atomic(vcpu->time_page, KM_USER0);
+	shared_kaddr = kmap_atomic(vcpu->time_page);
 
 	memcpy(shared_kaddr + vcpu->time_offset, &vcpu->hv_clock,
 	       sizeof(vcpu->hv_clock));
 
-	kunmap_atomic(shared_kaddr, KM_USER0);
+	kunmap_atomic(shared_kaddr);
 
 	mark_page_dirty(v->kvm, vcpu->time >> PAGE_SHIFT);
 }

@@ -3567,7 +3567,7 @@ static int emulator_cmpxchg_emulated(uns
 		goto emul_write;
 	}
 
-	kaddr = kmap_atomic(page, KM_USER0);
+	kaddr = kmap_atomic(page);
 	kaddr += offset_in_page(gpa);
 	switch (bytes) {
 	case 1:

@@ -3585,7 +3585,7 @@ static int emulator_cmpxchg_emulated(uns
 	default:
 		BUG();
 	}
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 	kvm_release_page_dirty(page);
 
 	if (!exchanged)

Index: linux-2.6/arch/x86/lib/usercopy_32.c
===================================================================
@@ -760,9 +760,9 @@ survive:
 				break;
 			}
 
-			maddr = kmap_atomic(pg, KM_USER0);
+			maddr = kmap_atomic(pg);
 			memcpy(maddr + offset, from, len);
-			kunmap_atomic(maddr, KM_USER0);
+			kunmap_atomic(maddr);
 			set_page_dirty_lock(pg);
 			put_page(pg);
 			up_read(&current->mm->mmap_sem);

Index: linux-2.6/arch/x86/mm/highmem_32.c
===================================================================
@@ -27,7 +27,7 @@ void kunmap(struct page *page)
  * However when holding an atomic kmap it is not legal to sleep, so atomic
  * kmaps are appropriate for short, tight code paths only.
  */
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
 {
 	enum fixed_addresses idx;
 	unsigned long vaddr;

@@ -47,12 +47,12 @@ void *kmap_atomic_prot(struct page *page
 	return (void *)vaddr;
 }
 
-void *kmap_atomic(struct page *page, enum km_type type)
+void *kmap_atomic(struct page *page)
 {
 	return kmap_atomic_prot(page, type, kmap_prot);
 }
 
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void kunmap_atomic_notypecheck(void *kvaddr)
 {
 	unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
 	enum fixed_addresses idx;

@@ -89,7 +89,7 @@ void kunmap_atomic_notypecheck(void *kva
  * This is the same as kmap_atomic() but can map memory that doesn't
  * have a struct page associated with it.
  */
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
 {
 	return kmap_atomic_prot_pfn(pfn, type, kmap_prot);
 }

Index: linux-2.6/arch/x86/mm/iomap_32.c
===================================================================
@@ -55,7 +55,7 @@ iomap_free(resource_size_t base, unsigne
 }
 EXPORT_SYMBOL_GPL(iomap_free);
 
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
 {
 	enum fixed_addresses idx;
 	unsigned long vaddr;

@@ -75,7 +75,7 @@ void *kmap_atomic_prot_pfn(unsigned long
  * Map 'pfn' using fixed map 'type' and protections 'prot'
  */
 void *
-iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+iomap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
 {
 	/*
 	 * For non-PAT systems, promote PAGE_KERNEL_WC to PAGE_KERNEL_UC_MINUS.

@@ -91,7 +91,7 @@ iomap_atomic_prot_pfn(unsigned long pfn,
 EXPORT_SYMBOL_GPL(iomap_atomic_prot_pfn);
 
 void
-iounmap_atomic(void *kvaddr, enum km_type type)
+iounmap_atomic(void *kvaddr)
 {
 	unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
 	enum fixed_addresses idx;

Index: linux-2.6/crypto/async_tx/async_memcpy.c
===================================================================
@@ -78,13 +78,13 @@ async_memcpy(struct page *dest, struct p
 		/* wait for any prerequisite operations */
 		async_tx_quiesce(&submit->depend_tx);
 
-		dest_buf = kmap_atomic(dest, KM_USER0) + dest_offset;
-		src_buf = kmap_atomic(src, KM_USER1) + src_offset;
+		dest_buf = kmap_atomic(dest) + dest_offset;
+		src_buf = kmap_atomic(src) + src_offset;
 
 		memcpy(dest_buf, src_buf, len);
 
-		kunmap_atomic(src_buf, KM_USER1);
-		kunmap_atomic(dest_buf, KM_USER0);
+		kunmap_atomic(src_buf);
+		kunmap_atomic(dest_buf);
 
 		async_tx_sync_epilog(submit);
 	}

Index: linux-2.6/drivers/ata/libata-sff.c
===================================================================
@@ -716,13 +716,13 @@ static void ata_pio_sector(struct ata_qu
 
 		/* FIXME: use a bounce buffer */
 		local_irq_save(flags);
-		buf = kmap_atomic(page, KM_IRQ0);
+		buf = kmap_atomic(page);
 
 		/* do the actual data transfer */
 		ap->ops->sff_data_xfer(qc->dev, buf + offset, qc->sect_size,
 				       do_write);
 
-		kunmap_atomic(buf, KM_IRQ0);
+		kunmap_atomic(buf);
 		local_irq_restore(flags);
 	} else {
 		buf = page_address(page);

@@ -861,13 +861,13 @@ next_sg:
 
 		/* FIXME: use bounce buffer */
 		local_irq_save(flags);
-		buf = kmap_atomic(page, KM_IRQ0);
+		buf = kmap_atomic(page);
 
 		/* do the actual data transfer */
 		consumed = ap->ops->sff_data_xfer(dev,  buf + offset,
 								count, rw);
 
-		kunmap_atomic(buf, KM_IRQ0);
+		kunmap_atomic(buf);
 		local_irq_restore(flags);
 	} else {
 		buf = page_address(page);

Index: linux-2.6/drivers/block/brd.c
===================================================================
@@ -245,9 +245,9 @@ static void copy_to_brd(struct brd_devic
 	page = brd_lookup_page(brd, sector);
 	BUG_ON(!page);
 
-	dst = kmap_atomic(page, KM_USER1);
+	dst = kmap_atomic(page);
 	memcpy(dst + offset, src, copy);
-	kunmap_atomic(dst, KM_USER1);
+	kunmap_atomic(dst);
 
 	if (copy < n) {
 		src += copy;

@@ -256,9 +256,9 @@ static void copy_to_brd(struct brd_devic
 		page = brd_lookup_page(brd, sector);
 		BUG_ON(!page);
 
-		dst = kmap_atomic(page, KM_USER1);
+		dst = kmap_atomic(page);
 		memcpy(dst, src, copy);
-		kunmap_atomic(dst, KM_USER1);
+		kunmap_atomic(dst);
 	}
 }
 

@@ -276,9 +276,9 @@ static void copy_from_brd(void *dst, str
 	copy = min_t(size_t, n, PAGE_SIZE - offset);
 	page = brd_lookup_page(brd, sector);
 	if (page) {
-		src = kmap_atomic(page, KM_USER1);
+		src = kmap_atomic(page);
 		memcpy(dst, src + offset, copy);
-		kunmap_atomic(src, KM_USER1);
+		kunmap_atomic(src);
 	} else
 		memset(dst, 0, copy);
 

@@ -288,9 +288,9 @@ static void copy_from_brd(void *dst, str
 		copy = n - copy;
 		page = brd_lookup_page(brd, sector);
 		if (page) {
-			src = kmap_atomic(page, KM_USER1);
+			src = kmap_atomic(page);
 			memcpy(dst, src, copy);
-			kunmap_atomic(src, KM_USER1);
+			kunmap_atomic(src);
 		} else
 			memset(dst, 0, copy);
 	}

@@ -312,7 +312,7 @@ static int brd_do_bvec(struct brd_device
 			goto out;
 	}
 
-	mem = kmap_atomic(page, KM_USER0);
+	mem = kmap_atomic(page);
 	if (rw == READ) {
 		copy_from_brd(mem + off, brd, sector, len);
 		flush_dcache_page(page);

@@ -320,7 +320,7 @@ static int brd_do_bvec(struct brd_device
 		flush_dcache_page(page);
 		copy_to_brd(brd, mem + off, sector, len);
 	}
-	kunmap_atomic(mem, KM_USER0);
+	kunmap_atomic(mem);
 
 out:
 	return err;

Index: linux-2.6/drivers/block/drbd/drbd_bitmap.c
===================================================================
@@ -170,7 +170,7 @@ static unsigned long *__bm_map_paddr(str
 
 static unsigned long * bm_map_paddr(struct drbd_bitmap *b, unsigned long offset)
 {
-	return __bm_map_paddr(b, offset, KM_IRQ1);
+	return __bm_map_paddr(b, offset);
 }
 
 static void __bm_unmap(unsigned long *p_addr, const enum km_type km)

@@ -180,7 +180,7 @@ static void __bm_unmap(unsigned long *p_
 
 static void bm_unmap(unsigned long *p_addr)
 {
-	return __bm_unmap(p_addr, KM_IRQ1);
+	return __bm_unmap(p_addr);
 }
 
 /* long word offset of _bitmap_ sector */

@@ -379,7 +379,7 @@ static unsigned long __bm_count_bits(str
 
 	while (offset < b->bm_words) {
 		i = do_now = min_t(size_t, b->bm_words-offset, LWPP);
-		p_addr = __bm_map_paddr(b, offset, KM_USER0);
+		p_addr = __bm_map_paddr(b, offset);
 		bm = p_addr + MLPP(offset);
 		while (i--) {
 #ifndef __LITTLE_ENDIAN

@@ -388,7 +388,7 @@ static unsigned long __bm_count_bits(str
 #endif
 			bits += hweight_long(*bm++);
 		}
-		__bm_unmap(p_addr, KM_USER0);
+		__bm_unmap(p_addr);
 		offset += do_now;
 		cond_resched();
 	}

@@ -799,10 +799,10 @@ static void bm_cpu_to_lel(struct drbd_bi
 		i = 0;
 	}
 	for (; i < b->bm_number_of_pages; i++) {
-		p_addr = kmap_atomic(b->bm_pages[i], KM_USER0);
+		p_addr = kmap_atomic(b->bm_pages[i]);
 		for (bm = p_addr; bm < p_addr + PAGE_SIZE/sizeof(long); bm++)
 			*bm = cpu_to_lel(*bm);
-		kunmap_atomic(p_addr, KM_USER0);
+		kunmap_atomic(p_addr);
 	}
 }
 # endif

@@ -983,7 +983,7 @@ static unsigned long bm_find_next(struct
 	if (bm_is_locked(b))
 		bm_print_lock_info(mdev);
 
-	i = __bm_find_next(mdev, bm_fo, find_zero_bit, KM_IRQ1);
+	i = __bm_find_next(mdev, bm_fo, find_zero_bit);
 
 	spin_unlock_irq(&b->bm_lock);
 	return i;

@@ -1007,13 +1007,13 @@ unsigned long drbd_bm_find_next_zero(str
 unsigned long _drbd_bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo)
 {
 	/* WARN_ON(!bm_is_locked(mdev)); */
-	return __bm_find_next(mdev, bm_fo, 0, KM_USER1);
+	return __bm_find_next(mdev, bm_fo, 0);
 }
 
 unsigned long _drbd_bm_find_next_zero(struct drbd_conf *mdev, unsigned long bm_fo)
 {
 	/* WARN_ON(!bm_is_locked(mdev)); */
-	return __bm_find_next(mdev, bm_fo, 1, KM_USER1);
+	return __bm_find_next(mdev, bm_fo, 1);
 }
 
 /* returns number of bits actually changed.

@@ -1074,7 +1074,7 @@ static int bm_change_bits_to(struct drbd
 	if (bm_is_locked(b))
 		bm_print_lock_info(mdev);
 
-	c = __bm_change_bits_to(mdev, s, e, val, KM_IRQ1);
+	c = __bm_change_bits_to(mdev, s, e, val);
 
 	spin_unlock_irqrestore(&b->bm_lock, flags);
 	return c;

@@ -1099,13 +1099,13 @@ static inline void bm_set_full_words_wit
 {
 	int i;
 	int bits;
-	unsigned long *paddr = kmap_atomic(b->bm_pages[page_nr], KM_USER0);
+	unsigned long *paddr = kmap_atomic(b->bm_pages[page_nr]);
 	for (i = first_word; i < last_word; i++) {
 		bits = hweight_long(paddr[i]);
 		paddr[i] = ~0UL;
 		b->bm_set += BITS_PER_LONG - bits;
 	}
-	kunmap_atomic(paddr, KM_USER0);
+	kunmap_atomic(paddr);
 }
 
 /* Same thing as drbd_bm_set_bits, but without taking the spin_lock_irqsave.

@@ -1132,7 +1132,7 @@ void _drbd_bm_set_bits(struct drbd_conf 
 
 	if (e - s <= 3*BITS_PER_LONG) {
 		/* don't bother; el and sl may even be wrong. */
-		__bm_change_bits_to(mdev, s, e, 1, KM_USER0);
+		__bm_change_bits_to(mdev, s, e, 1);
 		return;
 	}
 

@@ -1140,7 +1140,7 @@ void _drbd_bm_set_bits(struct drbd_conf 
 
 	/* bits filling the current long */
 	if (sl)
-		__bm_change_bits_to(mdev, s, sl-1, 1, KM_USER0);
+		__bm_change_bits_to(mdev, s, sl-1, 1);
 
 	first_page = sl >> (3 + PAGE_SHIFT);
 	last_page = el >> (3 + PAGE_SHIFT);

@@ -1167,7 +1167,7 @@ void _drbd_bm_set_bits(struct drbd_conf 
 	 * it would trigger an assert in __bm_change_bits_to()
 	 */
 	if (el <= e)
-		__bm_change_bits_to(mdev, el, e, 1, KM_USER0);
+		__bm_change_bits_to(mdev, el, e, 1);
 }
 
 /* returns bit state

Index: linux-2.6/drivers/block/drbd/drbd_nl.c
===================================================================
@@ -2256,10 +2256,10 @@ void drbd_bcast_ee(struct drbd_conf *mde
 	len = e->size;
 	page = e->pages;
 	page_chain_for_each(page) {
-		void *d = kmap_atomic(page, KM_USER0);
+		void *d = kmap_atomic(page);
 		unsigned l = min_t(unsigned, len, PAGE_SIZE);
 		memcpy(tl, d, l);
-		kunmap_atomic(d, KM_USER0);
+		kunmap_atomic(d);
 		tl = (unsigned short*)((char*)tl + l);
 		len -= l;
 	}

Index: linux-2.6/drivers/block/loop.c
===================================================================
@@ -91,16 +91,16 @@ static int transfer_none(struct loop_dev
 			 struct page *loop_page, unsigned loop_off,
 			 int size, sector_t real_block)
 {
-	char *raw_buf = kmap_atomic(raw_page, KM_USER0) + raw_off;
-	char *loop_buf = kmap_atomic(loop_page, KM_USER1) + loop_off;
+	char *raw_buf = kmap_atomic(raw_page) + raw_off;
+	char *loop_buf = kmap_atomic(loop_page) + loop_off;
 
 	if (cmd == READ)
 		memcpy(loop_buf, raw_buf, size);
 	else
 		memcpy(raw_buf, loop_buf, size);
 
-	kunmap_atomic(loop_buf, KM_USER1);
-	kunmap_atomic(raw_buf, KM_USER0);
+	kunmap_atomic(loop_buf);
+	kunmap_atomic(raw_buf);
 	cond_resched();
 	return 0;
 }

@@ -110,8 +110,8 @@ static int transfer_xor(struct loop_devi
 			struct page *loop_page, unsigned loop_off,
 			int size, sector_t real_block)
 {
-	char *raw_buf = kmap_atomic(raw_page, KM_USER0) + raw_off;
-	char *loop_buf = kmap_atomic(loop_page, KM_USER1) + loop_off;
+	char *raw_buf = kmap_atomic(raw_page) + raw_off;
+	char *loop_buf = kmap_atomic(loop_page) + loop_off;
 	char *in, *out, *key;
 	int i, keysize;
 

@@ -128,8 +128,8 @@ static int transfer_xor(struct loop_devi
 	for (i = 0; i < size; i++)
 		*out++ = *in++ ^ key[(i & 511) % keysize];
 
-	kunmap_atomic(loop_buf, KM_USER1);
-	kunmap_atomic(raw_buf, KM_USER0);
+	kunmap_atomic(loop_buf);
+	kunmap_atomic(raw_buf);
 	cond_resched();
 	return 0;
 }

Index: linux-2.6/drivers/block/pktcdvd.c
===================================================================
@@ -988,14 +988,14 @@ static void pkt_copy_bio_data(struct bio
 
 	while (copy_size > 0) {
 		struct bio_vec *src_bvl = bio_iovec_idx(src_bio, seg);
-		void *vfrom = kmap_atomic(src_bvl->bv_page, KM_USER0) +
+		void *vfrom = kmap_atomic(src_bvl->bv_page) +
 			src_bvl->bv_offset + offs;
 		void *vto = page_address(dst_page) + dst_offs;
 		int len = min_t(int, copy_size, src_bvl->bv_len - offs);
 
 		BUG_ON(len < 0);
 		memcpy(vto, vfrom, len);
-		kunmap_atomic(vfrom, KM_USER0);
+		kunmap_atomic(vfrom);
 
 		seg++;
 		offs = 0;

@@ -1020,10 +1020,10 @@ static void pkt_make_local_copy(struct p
 	offs = 0;
 	for (f = 0; f < pkt->frames; f++) {
 		if (bvec[f].bv_page != pkt->pages[p]) {
-			void *vfrom = kmap_atomic(bvec[f].bv_page, KM_USER0) + bvec[f].bv_offset;
+			void *vfrom = kmap_atomic(bvec[f].bv_page) + bvec[f].bv_offset;
 			void *vto = page_address(pkt->pages[p]) + offs;
 			memcpy(vto, vfrom, CD_FRAMESIZE);
-			kunmap_atomic(vfrom, KM_USER0);
+			kunmap_atomic(vfrom);
 			bvec[f].bv_page = pkt->pages[p];
 			bvec[f].bv_offset = offs;
 		} else {

Index: linux-2.6/drivers/crypto/hifn_795x.c
===================================================================
@@ -1731,9 +1731,9 @@ static int ablkcipher_get(void *saddr, u
 	while (size) {
 		copy = min(srest, min(dst->length, size));
 
-		daddr = kmap_atomic(sg_page(dst), KM_IRQ0);
+		daddr = kmap_atomic(sg_page(dst));
 		memcpy(daddr + dst->offset + offset, saddr, copy);
-		kunmap_atomic(daddr, KM_IRQ0);
+		kunmap_atomic(daddr);
 
 		nbytes -= copy;
 		size -= copy;

@@ -1793,17 +1793,17 @@ static void hifn_process_ready(struct ab
 				continue;
 			}
 
-			saddr = kmap_atomic(sg_page(t), KM_SOFTIRQ0);
+			saddr = kmap_atomic(sg_page(t));
 
 			err = ablkcipher_get(saddr, &t->length, t->offset,
 					dst, nbytes, &nbytes);
 			if (err < 0) {
-				kunmap_atomic(saddr, KM_SOFTIRQ0);
+				kunmap_atomic(saddr);
 				break;
 			}
 
 			idx += err;
-			kunmap_atomic(saddr, KM_SOFTIRQ0);
+			kunmap_atomic(saddr);
 		}
 
 		hifn_cipher_walk_exit(&rctx->walk);

Index: linux-2.6/drivers/edac/edac_mc.c
===================================================================
@@ -612,13 +612,13 @@ static void edac_mc_scrub_block(unsigned
 	if (PageHighMem(pg))
 		local_irq_save(flags);
 
-	virt_addr = kmap_atomic(pg, KM_BOUNCE_READ);
+	virt_addr = kmap_atomic(pg);
 
 	/* Perform architecture specific atomic scrub operation */
 	atomic_scrub(virt_addr + offset, size);
 
 	/* Unmap and complete */
-	kunmap_atomic(virt_addr, KM_BOUNCE_READ);
+	kunmap_atomic(virt_addr);
 
 	if (PageHighMem(pg))
 		local_irq_restore(flags);

Index: linux-2.6/drivers/gpu/drm/drm_cache.c
===================================================================
@@ -40,10 +40,10 @@ drm_clflush_page(struct page *page)
 	if (unlikely(page == NULL))
 		return;
 
-	page_virtual = kmap_atomic(page, KM_USER0);
+	page_virtual = kmap_atomic(page);
 	for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
 		clflush(page_virtual + i);
-	kunmap_atomic(page_virtual, KM_USER0);
+	kunmap_atomic(page_virtual);
 }
 
 static void drm_cache_flush_clflush(struct page *pages[],

@@ -86,10 +86,10 @@ drm_clflush_pages(struct page *pages[], 
 		if (unlikely(page == NULL))
 			continue;
 
-		page_virtual = kmap_atomic(page, KM_USER0);
+		page_virtual = kmap_atomic(page);
 		flush_dcache_range((unsigned long)page_virtual,
 				   (unsigned long)page_virtual + PAGE_SIZE);
-		kunmap_atomic(page_virtual, KM_USER0);
+		kunmap_atomic(page_virtual);
 	}
 #else
 	printk(KERN_ERR "Architecture has no drm_cache.c support\n");

Index: linux-2.6/drivers/gpu/drm/i915/i915_debugfs.c
===================================================================
@@ -270,10 +270,10 @@ static void i915_dump_pages(struct seq_f
 	uint32_t *mem;
 
 	for (page = 0; page < page_count; page++) {
-		mem = kmap_atomic(pages[page], KM_USER0);
+		mem = kmap_atomic(pages[page]);
 		for (i = 0; i < PAGE_SIZE; i += 4)
 			seq_printf(m, "%08x :  %08x\n", i, mem[i / 4]);
-		kunmap_atomic(mem, KM_USER0);
+		kunmap_atomic(mem);
 	}
 }
 

Index: linux-2.6/drivers/gpu/drm/i915/i915_gem.c
===================================================================
@@ -146,11 +146,11 @@ fast_shmem_read(struct page **pages,
 	char __iomem *vaddr;
 	int unwritten;
 
-	vaddr = kmap_atomic(pages[page_base >> PAGE_SHIFT], KM_USER0);
+	vaddr = kmap_atomic(pages[page_base >> PAGE_SHIFT]);
 	if (vaddr == NULL)
 		return -ENOMEM;
 	unwritten = __copy_to_user_inatomic(data, vaddr + page_offset, length);
-	kunmap_atomic(vaddr, KM_USER0);
+	kunmap_atomic(vaddr);
 
 	if (unwritten)
 		return -EFAULT;

@@ -496,10 +496,10 @@ fast_user_write(struct io_mapping *mappi
 	char *vaddr_atomic;
 	unsigned long unwritten;
 
-	vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base, KM_USER0);
+	vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base);
 	unwritten = __copy_from_user_inatomic_nocache(vaddr_atomic + page_offset,
 						      user_data, length);
-	io_mapping_unmap_atomic(vaddr_atomic, KM_USER0);
+	io_mapping_unmap_atomic(vaddr_atomic);
 	if (unwritten)
 		return -EFAULT;
 	return 0;

@@ -538,11 +538,11 @@ fast_shmem_write(struct page **pages,
 	char __iomem *vaddr;
 	unsigned long unwritten;
 
-	vaddr = kmap_atomic(pages[page_base >> PAGE_SHIFT], KM_USER0);
+	vaddr = kmap_atomic(pages[page_base >> PAGE_SHIFT]);
 	if (vaddr == NULL)
 		return -ENOMEM;
 	unwritten = __copy_from_user_inatomic(vaddr + page_offset, data, length);
-	kunmap_atomic(vaddr, KM_USER0);
+	kunmap_atomic(vaddr);
 
 	if (unwritten)
 		return -EFAULT;

@@ -3499,7 +3499,7 @@ i915_gem_object_pin_and_relocate(struct 
 			  readl(reloc_entry), reloc_val);
 #endif
 		writel(reloc_val, reloc_entry);
-		io_mapping_unmap_atomic(reloc_page, KM_USER0);
+		io_mapping_unmap_atomic(reloc_page);
 
 		/* The updated presumed offset for this entry will be
 		 * copied back out to the user.

@@ -4921,11 +4921,11 @@ void i915_gem_detach_phys_object(struct 
 	page_count = obj->size / PAGE_SIZE;
 
 	for (i = 0; i < page_count; i++) {
-		char *dst = kmap_atomic(obj_priv->pages[i], KM_USER0);
+		char *dst = kmap_atomic(obj_priv->pages[i]);
 		char *src = obj_priv->phys_obj->handle->vaddr + (i * PAGE_SIZE);
 
 		memcpy(dst, src, PAGE_SIZE);
-		kunmap_atomic(dst, KM_USER0);
+		kunmap_atomic(dst);
 	}
 	drm_clflush_pages(obj_priv->pages, page_count);
 	drm_agp_chipset_flush(dev);

@@ -4981,11 +4981,11 @@ i915_gem_attach_phys_object(struct drm_d
 	page_count = obj->size / PAGE_SIZE;
 
 	for (i = 0; i < page_count; i++) {
-		char *src = kmap_atomic(obj_priv->pages[i], KM_USER0);
+		char *src = kmap_atomic(obj_priv->pages[i]);
 		char *dst = obj_priv->phys_obj->handle->vaddr + (i * PAGE_SIZE);
 
 		memcpy(dst, src, PAGE_SIZE);
-		kunmap_atomic(src, KM_USER0);
+		kunmap_atomic(src);
 	}
 
 	i915_gem_object_put_pages(obj);

Index: linux-2.6/drivers/gpu/drm/i915/i915_gem_debug.c
===================================================================
@@ -57,13 +57,13 @@ static void
 i915_gem_dump_page(struct page *page, uint32_t start, uint32_t end,
 		   uint32_t bias, uint32_t mark)
 {
-	uint32_t *mem = kmap_atomic(page, KM_USER0);
+	uint32_t *mem = kmap_atomic(page);
 	int i;
 	for (i = start; i < end; i += 4)
 		DRM_INFO("%08x: %08x%s\n",
 			  (int) (bias + i), mem[i / 4],
 			  (bias + i == mark) ? " ********" : "");
-	kunmap_atomic(mem, KM_USER0);
+	kunmap_atomic(mem);
 	/* give syslog time to catch up */
 	msleep(1);
 }

@@ -157,7 +157,7 @@ i915_gem_object_check_coherency(struct d
 	for (page = 0; page < obj->size / PAGE_SIZE; page++) {
 		int i;
 
-		backing_map = kmap_atomic(obj_priv->pages[page], KM_USER0);
+		backing_map = kmap_atomic(obj_priv->pages[page]);
 
 		if (backing_map == NULL) {
 			DRM_ERROR("failed to map backing page\n");

@@ -181,13 +181,13 @@ i915_gem_object_check_coherency(struct d
 				}
 			}
 		}
-		kunmap_atomic(backing_map, KM_USER0);
+		kunmap_atomic(backing_map);
 		backing_map = NULL;
 	}
 
  out:
 	if (backing_map != NULL)
-		kunmap_atomic(backing_map, KM_USER0);
+		kunmap_atomic(backing_map);
 	iounmap(gtt_mapping);
 
 	/* give syslog time to catch up */

Index: linux-2.6/drivers/gpu/drm/i915/i915_irq.c
===================================================================
@@ -449,9 +449,9 @@ i915_error_object_create(struct drm_devi
 		if (d == NULL)
 			goto unwind;
 		local_irq_save(flags);
-		s = kmap_atomic(src_priv->pages[page], KM_IRQ0);
+		s = kmap_atomic(src_priv->pages[page]);
 		memcpy(d, s, PAGE_SIZE);
-		kunmap_atomic(s, KM_IRQ0);
+		kunmap_atomic(s);
 		local_irq_restore(flags);
 		dst->pages[page] = d;
 	}

Index: linux-2.6/drivers/gpu/drm/i915/intel_overlay.c
===================================================================
@@ -201,7 +201,7 @@ static struct overlay_registers *intel_o
 static void intel_overlay_unmap_regs_atomic(struct intel_overlay *overlay)
 {
 	if (OVERLAY_NONPHYSICAL(overlay->dev))
-		io_mapping_unmap_atomic(overlay->virt_addr, KM_USER0);
+		io_mapping_unmap_atomic(overlay->virt_addr);
 
 	overlay->virt_addr = NULL;
 

Index: linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c
===================================================================
@@ -2167,11 +2167,11 @@ peek_fb(struct drm_device *dev, struct i
 
 	if (off < pci_resource_len(dev->pdev, 1)) {
 		uint32_t __iomem *p =
-			io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
+			io_mapping_map_atomic_wc(fb, off & PAGE_MASK);
 
 		val = ioread32(p + (off & ~PAGE_MASK));
 
-		io_mapping_unmap_atomic(p, KM_USER0);
+		io_mapping_unmap_atomic(p);
 	}
 
 	return val;

@@ -2183,12 +2183,12 @@ poke_fb(struct drm_device *dev, struct i
 {
 	if (off < pci_resource_len(dev->pdev, 1)) {
 		uint32_t __iomem *p =
-			io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
+			io_mapping_map_atomic_wc(fb, off & PAGE_MASK);
 
 		iowrite32(val, p + (off & ~PAGE_MASK));
 		wmb();
 
-		io_mapping_unmap_atomic(p, KM_USER0);
+		io_mapping_unmap_atomic(p);
 	}
 }
 

Index: linux-2.6/drivers/gpu/drm/ttm/ttm_bo_util.c
===================================================================
@@ -170,7 +170,7 @@ static int ttm_copy_io_ttm_page(struct t
 	src = (void *)((unsigned long)src + (page << PAGE_SHIFT));
 
 #ifdef CONFIG_X86
-	dst = kmap_atomic_prot(d, KM_USER0, prot);
+	dst = kmap_atomic_prot(d, prot);
 #else
 	if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
 		dst = vmap(&d, 1, 0, prot);

@@ -183,7 +183,7 @@ static int ttm_copy_io_ttm_page(struct t
 	memcpy_fromio(dst, src, PAGE_SIZE);
 
 #ifdef CONFIG_X86
-	kunmap_atomic(dst, KM_USER0);
+	kunmap_atomic(dst);
 #else
 	if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
 		vunmap(dst);

@@ -206,7 +206,7 @@ static int ttm_copy_ttm_io_page(struct t
 
 	dst = (void *)((unsigned long)dst + (page << PAGE_SHIFT));
 #ifdef CONFIG_X86
-	src = kmap_atomic_prot(s, KM_USER0, prot);
+	src = kmap_atomic_prot(s, prot);
 #else
 	if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
 		src = vmap(&s, 1, 0, prot);

@@ -219,7 +219,7 @@ static int ttm_copy_ttm_io_page(struct t
 	memcpy_toio(dst, src, PAGE_SIZE);
 
 #ifdef CONFIG_X86
-	kunmap_atomic(src, KM_USER0);
+	kunmap_atomic(src);
 #else
 	if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
 		vunmap(src);

Index: linux-2.6/drivers/gpu/drm/ttm/ttm_tt.c
===================================================================
@@ -490,11 +490,11 @@ static int ttm_tt_swapin(struct ttm_tt *
 			goto out_err;
 
 		preempt_disable();
-		from_virtual = kmap_atomic(from_page, KM_USER0);
-		to_virtual = kmap_atomic(to_page, KM_USER1);
+		from_virtual = kmap_atomic(from_page);
+		to_virtual = kmap_atomic(to_page);
 		memcpy(to_virtual, from_virtual, PAGE_SIZE);
-		kunmap_atomic(to_virtual, KM_USER1);
-		kunmap_atomic(from_virtual, KM_USER0);
+		kunmap_atomic(to_virtual);
+		kunmap_atomic(from_virtual);
 		preempt_enable();
 		page_cache_release(from_page);
 	}

@@ -559,11 +559,11 @@ int ttm_tt_swapout(struct ttm_tt *ttm, s
 			goto out_err;
 		}
 		preempt_disable();
-		from_virtual = kmap_atomic(from_page, KM_USER0);
-		to_virtual = kmap_atomic(to_page, KM_USER1);
+		from_virtual = kmap_atomic(from_page);
+		to_virtual = kmap_atomic(to_page);
 		memcpy(to_virtual, from_virtual, PAGE_SIZE);
-		kunmap_atomic(to_virtual, KM_USER1);
-		kunmap_atomic(from_virtual, KM_USER0);
+		kunmap_atomic(to_virtual);
+		kunmap_atomic(from_virtual);
 		preempt_enable();
 		set_page_dirty(to_page);
 		mark_page_accessed(to_page);

Index: linux-2.6/drivers/gpu/drm/vmwgfx/vmwgfx_gmr.c
===================================================================
@@ -65,10 +65,10 @@ static int vmw_gmr_build_descriptors(str
 
 		if (likely(page_virtual != NULL)) {
 			desc_virtual->ppn = page_to_pfn(page);
-			kunmap_atomic(page_virtual, KM_USER0);
+			kunmap_atomic(page_virtual);
 		}
 
-		page_virtual = kmap_atomic(page, KM_USER0);
+		page_virtual = kmap_atomic(page);
 		desc_virtual = page_virtual - 1;
 		prev_pfn = ~(0UL);
 

@@ -98,7 +98,7 @@ static int vmw_gmr_build_descriptors(str
 	}
 
 	if (likely(page_virtual != NULL))
-		kunmap_atomic(page_virtual, KM_USER0);
+		kunmap_atomic(page_virtual);
 
 	return 0;
 out_err:

Index: linux-2.6/drivers/ide/ide-taskfile.c
===================================================================
@@ -252,7 +252,7 @@ void ide_pio_bytes(ide_drive_t *drive, s
 		if (page_is_high)
 			local_irq_save(flags);
 
-		buf = kmap_atomic(page, KM_BIO_SRC_IRQ) + offset;
+		buf = kmap_atomic(page) + offset;
 
 		cmd->nleft -= nr_bytes;
 		cmd->cursg_ofs += nr_bytes;

@@ -268,7 +268,7 @@ void ide_pio_bytes(ide_drive_t *drive, s
 		else
 			hwif->tp_ops->input_data(drive, cmd, buf, nr_bytes);
 
-		kunmap_atomic(buf, KM_BIO_SRC_IRQ);
+		kunmap_atomic(buf);
 
 		if (page_is_high)
 			local_irq_restore(flags);

Index: linux-2.6/drivers/infiniband/ulp/iser/iser_memory.c
===================================================================
@@ -73,11 +73,11 @@ static int iser_start_rdma_unaligned_sg(
 
 		p = mem;
 		for_each_sg(sgl, sg, data->size, i) {
-			from = kmap_atomic(sg_page(sg), KM_USER0);
+			from = kmap_atomic(sg_page(sg));
 			memcpy(p,
 			       from + sg->offset,
 			       sg->length);
-			kunmap_atomic(from, KM_USER0);
+			kunmap_atomic(from);
 			p += sg->length;
 		}
 	}

@@ -133,11 +133,11 @@ void iser_finalize_rdma_unaligned_sg(str
 
 		p = mem;
 		for_each_sg(sgl, sg, sg_size, i) {
-			to = kmap_atomic(sg_page(sg), KM_SOFTIRQ0);
+			to = kmap_atomic(sg_page(sg));
 			memcpy(to + sg->offset,
 			       p,
 			       sg->length);
-			kunmap_atomic(to, KM_SOFTIRQ0);
+			kunmap_atomic(to);
 			p += sg->length;
 		}
 	}

Index: linux-2.6/drivers/md/bitmap.c
===================================================================
@@ -487,7 +487,7 @@ void bitmap_update_sb(struct bitmap *bit
 		return;
 	}
 	spin_unlock_irqrestore(&bitmap->lock, flags);
-	sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+	sb = kmap_atomic(bitmap->sb_page);
 	sb->events = cpu_to_le64(bitmap->mddev->events);
 	if (bitmap->mddev->events < bitmap->events_cleared) {
 		/* rocking back to read-only */

@@ -497,7 +497,7 @@ void bitmap_update_sb(struct bitmap *bit
 	/* Just in case these have been changed via sysfs: */
 	sb->daemon_sleep = cpu_to_le32(bitmap->mddev->bitmap_info.daemon_sleep/HZ);
 	sb->write_behind = cpu_to_le32(bitmap->mddev->bitmap_info.max_write_behind);
-	kunmap_atomic(sb, KM_USER0);
+	kunmap_atomic(sb);
 	write_page(bitmap, bitmap->sb_page, 1);
 }
 

@@ -508,7 +508,7 @@ void bitmap_print_sb(struct bitmap *bitm
 
 	if (!bitmap || !bitmap->sb_page)
 		return;
-	sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+	sb = kmap_atomic(bitmap->sb_page);
 	printk(KERN_DEBUG "%s: bitmap file superblock:\n", bmname(bitmap));
 	printk(KERN_DEBUG "         magic: %08x\n", le32_to_cpu(sb->magic));
 	printk(KERN_DEBUG "       version: %d\n", le32_to_cpu(sb->version));

@@ -527,7 +527,7 @@ void bitmap_print_sb(struct bitmap *bitm
 	printk(KERN_DEBUG "     sync size: %llu KB\n",
 			(unsigned long long)le64_to_cpu(sb->sync_size)/2);
 	printk(KERN_DEBUG "max write behind: %d\n", le32_to_cpu(sb->write_behind));
-	kunmap_atomic(sb, KM_USER0);
+	kunmap_atomic(sb);
 }
 
 /* read the superblock from the bitmap file and initialize some bitmap fields */

@@ -557,7 +557,7 @@ static int bitmap_read_sb(struct bitmap 
 		return err;
 	}
 
-	sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+	sb = kmap_atomic(bitmap->sb_page);
 
 	chunksize = le32_to_cpu(sb->chunksize);
 	daemon_sleep = le32_to_cpu(sb->daemon_sleep) * HZ;

@@ -618,7 +618,7 @@ success:
 		bitmap->events_cleared = bitmap->mddev->events;
 	err = 0;
 out:
-	kunmap_atomic(sb, KM_USER0);
+	kunmap_atomic(sb);
 	if (err)
 		bitmap_print_sb(bitmap);
 	return err;

@@ -643,7 +643,7 @@ static int bitmap_mask_state(struct bitm
 		return 0;
 	}
 	spin_unlock_irqrestore(&bitmap->lock, flags);
-	sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+	sb = kmap_atomic(bitmap->sb_page);
 	old = le32_to_cpu(sb->state) & bits;
 	switch (op) {
 	case MASK_SET:

@@ -655,7 +655,7 @@ static int bitmap_mask_state(struct bitm
 	default:
 		BUG();
 	}
-	kunmap_atomic(sb, KM_USER0);
+	kunmap_atomic(sb);
 	return old;
 }
 

@@ -846,12 +846,12 @@ static void bitmap_file_set_bit(struct b
 		bit = file_page_offset(bitmap, chunk);
 
 		/* set the bit */
-		kaddr = kmap_atomic(page, KM_USER0);
+		kaddr = kmap_atomic(page);
 		if (bitmap->flags & BITMAP_HOSTENDIAN)
 			set_bit(bit, kaddr);
 		else
 			ext2_set_bit(bit, kaddr);
-		kunmap_atomic(kaddr, KM_USER0);
+		kunmap_atomic(kaddr);
 		PRINTK("set file bit %lu page %lu\n", bit, page->index);
 	}
 	/* record page number so it gets flushed to disk when unplug occurs */

@@ -1030,10 +1030,10 @@ static int bitmap_init_from_disk(struct 
 				 * if bitmap is out of date, dirty the
 				 * whole page and write it out
 				 */
-				paddr = kmap_atomic(page, KM_USER0);
+				paddr = kmap_atomic(page);
 				memset(paddr + offset, 0xff,
 				       PAGE_SIZE - offset);
-				kunmap_atomic(paddr, KM_USER0);
+				kunmap_atomic(paddr);
 				write_page(bitmap, page, 1);
 
 				ret = -EIO;

@@ -1041,12 +1041,12 @@ static int bitmap_init_from_disk(struct 
 					goto err;
 			}
 		}
-		paddr = kmap_atomic(page, KM_USER0);
+		paddr = kmap_atomic(page);
 		if (bitmap->flags & BITMAP_HOSTENDIAN)
 			b = test_bit(bit, paddr);
 		else
 			b = ext2_test_bit(bit, paddr);
-		kunmap_atomic(paddr, KM_USER0);
+		kunmap_atomic(paddr);
 		if (b) {
 			/* if the disk bit is set, set the memory bit */
 			int needed = ((sector_t)(i+1) << (CHUNK_BLOCK_SHIFT(bitmap))

@@ -1187,10 +1187,10 @@ void bitmap_daemon_work(mddev_t *mddev)
 			    bitmap->mddev->bitmap_info.external == 0) {
 				bitmap_super_t *sb;
 				bitmap->need_sync = 0;
-				sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+				sb = kmap_atomic(bitmap->sb_page);
 				sb->events_cleared =
 					cpu_to_le64(bitmap->events_cleared);
-				kunmap_atomic(sb, KM_USER0);
+				kunmap_atomic(sb);
 				write_page(bitmap, bitmap->sb_page, 1);
 			}
 			spin_lock_irqsave(&bitmap->lock, flags);

@@ -1216,14 +1216,14 @@ void bitmap_daemon_work(mddev_t *mddev)
 
 				/* clear the bit */
 				if (page) {
-					paddr = kmap_atomic(page, KM_USER0);
+					paddr = kmap_atomic(page);
 					if (bitmap->flags & BITMAP_HOSTENDIAN)
 						clear_bit(file_page_offset(bitmap, j),
 							  paddr);
 					else
 						ext2_clear_bit(file_page_offset(bitmap, j),
 							       paddr);
-					kunmap_atomic(paddr, KM_USER0);
+					kunmap_atomic(paddr);
 				} else
 					log->type->clear_region(log, j);
 			}

Index: linux-2.6/drivers/media/video/ivtv/ivtv-udma.c
===================================================================
@@ -57,9 +57,9 @@ int ivtv_udma_fill_sg_list (struct ivtv_
 			if (dma->bouncemap[map_offset] == NULL)
 				return -1;
 			local_irq_save(flags);
-			src = kmap_atomic(dma->map[map_offset], KM_BOUNCE_READ) + offset;
+			src = kmap_atomic(dma->map[map_offset]) + offset;
 			memcpy(page_address(dma->bouncemap[map_offset]) + offset, src, len);
-			kunmap_atomic(src, KM_BOUNCE_READ);
+			kunmap_atomic(src);
 			local_irq_restore(flags);
 			sg_set_page(&dma->SGlist[map_offset], dma->bouncemap[map_offset], len, offset);
 		}

Index: linux-2.6/drivers/memstick/host/jmb38x_ms.c
===================================================================
@@ -324,7 +324,7 @@ static int jmb38x_ms_transfer_data(struc
 			p_cnt = min(p_cnt, length);
 
 			local_irq_save(flags);
-			buf = kmap_atomic(pg, KM_BIO_SRC_IRQ) + p_off;
+			buf = kmap_atomic(pg) + p_off;
 		} else {
 			buf = host->req->data + host->block_pos;
 			p_cnt = host->req->data_len - host->block_pos;

@@ -340,7 +340,7 @@ static int jmb38x_ms_transfer_data(struc
 				 : jmb38x_ms_read_reg_data(host, buf, p_cnt);
 
 		if (host->req->long_data) {
-			kunmap_atomic(buf - p_off, KM_BIO_SRC_IRQ);
+			kunmap_atomic(buf - p_off);
 			local_irq_restore(flags);
 		}
 

Index: linux-2.6/drivers/memstick/host/tifm_ms.c
===================================================================
@@ -209,7 +209,7 @@ static unsigned int tifm_ms_transfer_dat
 			p_cnt = min(p_cnt, length);
 
 			local_irq_save(flags);
-			buf = kmap_atomic(pg, KM_BIO_SRC_IRQ) + p_off;
+			buf = kmap_atomic(pg) + p_off;
 		} else {
 			buf = host->req->data + host->block_pos;
 			p_cnt = host->req->data_len - host->block_pos;

@@ -220,7 +220,7 @@ static unsigned int tifm_ms_transfer_dat
 			 : tifm_ms_read_data(host, buf, p_cnt);
 
 		if (host->req->long_data) {
-			kunmap_atomic(buf - p_off, KM_BIO_SRC_IRQ);
+			kunmap_atomic(buf - p_off);
 			local_irq_restore(flags);
 		}
 

Index: linux-2.6/drivers/mmc/host/at91_mci.c
===================================================================
@@ -233,7 +233,7 @@ static inline void at91_mci_sg_to_dma(st
 
 		sg = &data->sg[i];
 
-		sgbuffer = kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+		sgbuffer = kmap_atomic(sg_page(sg)) + sg->offset;
 		amount = min(size, sg->length);
 		size -= amount;
 

@@ -249,7 +249,7 @@ static inline void at91_mci_sg_to_dma(st
 			dmabuf = (unsigned *)tmpv;
 		}
 
-		kunmap_atomic(sgbuffer, KM_BIO_SRC_IRQ);
+		kunmap_atomic(sgbuffer);
 
 		if (size == 0)
 			break;

@@ -299,7 +299,7 @@ static void at91_mci_post_dma_read(struc
 
 		sg = &data->sg[i];
 
-		sgbuffer = kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+		sgbuffer = kmap_atomic(sg_page(sg)) + sg->offset;
 		amount = min(size, sg->length);
 		size -= amount;
 

@@ -315,7 +315,7 @@ static void at91_mci_post_dma_read(struc
 		}
 
 		flush_kernel_dcache_page(sg_page(sg));
-		kunmap_atomic(sgbuffer, KM_BIO_SRC_IRQ);
+		kunmap_atomic(sgbuffer);
 		data->bytes_xfered += amount;
 		if (size == 0)
 			break;

Index: linux-2.6/drivers/mmc/host/msm_sdcc.c
===================================================================
@@ -644,7 +644,7 @@ msmsdcc_pio_irq(int irq, void *dev_id)
 			len = msmsdcc_pio_write(host, buffer, remain, status);
 
 		/* Unmap the buffer */
-		kunmap_atomic(buffer, KM_BIO_SRC_IRQ);
+		kunmap_atomic(buffer);
 		local_irq_restore(flags);
 
 		host->pio.sg_off += len;

Index: linux-2.6/drivers/mmc/host/sdhci.c
===================================================================
@@ -380,12 +380,12 @@ static void sdhci_transfer_pio(struct sd
 static char *sdhci_kmap_atomic(struct scatterlist *sg, unsigned long *flags)
 {
 	local_irq_save(*flags);
-	return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+	return kmap_atomic(sg_page(sg)) + sg->offset;
 }
 
 static void sdhci_kunmap_atomic(void *buffer, unsigned long *flags)
 {
-	kunmap_atomic(buffer, KM_BIO_SRC_IRQ);
+	kunmap_atomic(buffer);
 	local_irq_restore(*flags);
 }
 

Index: linux-2.6/drivers/mmc/host/tifm_sd.c
===================================================================
@@ -117,7 +117,7 @@ static void tifm_sd_read_fifo(struct tif
 	unsigned char *buf;
 	unsigned int pos = 0, val;
 
-	buf = kmap_atomic(pg, KM_BIO_DST_IRQ) + off;
+	buf = kmap_atomic(pg) + off;
 	if (host->cmd_flags & DATA_CARRY) {
 		buf[pos++] = host->bounce_buf_data[0];
 		host->cmd_flags &= ~DATA_CARRY;

@@ -133,7 +133,7 @@ static void tifm_sd_read_fifo(struct tif
 		}
 		buf[pos++] = (val >> 8) & 0xff;
 	}
-	kunmap_atomic(buf - off, KM_BIO_DST_IRQ);
+	kunmap_atomic(buf - off);
 }
 
 static void tifm_sd_write_fifo(struct tifm_sd *host, struct page *pg,

@@ -143,7 +143,7 @@ static void tifm_sd_write_fifo(struct ti
 	unsigned char *buf;
 	unsigned int pos = 0, val;
 
-	buf = kmap_atomic(pg, KM_BIO_SRC_IRQ) + off;
+	buf = kmap_atomic(pg) + off;
 	if (host->cmd_flags & DATA_CARRY) {
 		val = host->bounce_buf_data[0] | ((buf[pos++] << 8) & 0xff00);
 		writel(val, sock->addr + SOCK_MMCSD_DATA);

@@ -160,7 +160,7 @@ static void tifm_sd_write_fifo(struct ti
 		val |= (buf[pos++] << 8) & 0xff00;
 		writel(val, sock->addr + SOCK_MMCSD_DATA);
 	}
-	kunmap_atomic(buf - off, KM_BIO_SRC_IRQ);
+	kunmap_atomic(buf - off);
 }
 
 static void tifm_sd_transfer_data(struct tifm_sd *host)

@@ -211,13 +211,13 @@ static void tifm_sd_copy_page(struct pag
 			      struct page *src, unsigned int src_off,
 			      unsigned int count)
 {
-	unsigned char *src_buf = kmap_atomic(src, KM_BIO_SRC_IRQ) + src_off;
-	unsigned char *dst_buf = kmap_atomic(dst, KM_BIO_DST_IRQ) + dst_off;
+	unsigned char *src_buf = kmap_atomic(src) + src_off;
+	unsigned char *dst_buf = kmap_atomic(dst) + dst_off;
 
 	memcpy(dst_buf, src_buf, count);
 
-	kunmap_atomic(dst_buf - dst_off, KM_BIO_DST_IRQ);
-	kunmap_atomic(src_buf - src_off, KM_BIO_SRC_IRQ);
+	kunmap_atomic(dst_buf - dst_off);
+	kunmap_atomic(src_buf - src_off);
 }
 
 static void tifm_sd_bounce_block(struct tifm_sd *host, struct mmc_data *r_data)

Index: linux-2.6/drivers/mmc/host/tmio_mmc.h
===================================================================
@@ -183,13 +183,13 @@ static inline char *tmio_mmc_kmap_atomic
 	struct scatterlist *sg = host->sg_ptr;
 
 	local_irq_save(*flags);
-	return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+	return kmap_atomic(sg_page(sg)) + sg->offset;
 }
 
 static inline void tmio_mmc_kunmap_atomic(struct tmio_mmc_host *host,
 	unsigned long *flags)
 {
-	kunmap_atomic(sg_page(host->sg_ptr), KM_BIO_SRC_IRQ);
+	kunmap_atomic(sg_page(host->sg_ptr));
 	local_irq_restore(*flags);
 }
 

Index: linux-2.6/drivers/net/cassini.c
===================================================================
@@ -103,8 +103,8 @@
 #include <asm/byteorder.h>
 #include <asm/uaccess.h>
 
-#define cas_page_map(x)      kmap_atomic((x), KM_SKB_DATA_SOFTIRQ)
-#define cas_page_unmap(x)    kunmap_atomic((x), KM_SKB_DATA_SOFTIRQ)
+#define cas_page_map(x)      kmap_atomic((x))
+#define cas_page_unmap(x)    kunmap_atomic((x))
 #define CAS_NCPUS            num_online_cpus()
 
 #define cas_skb_release(x)  netif_rx(x)

Index: linux-2.6/drivers/net/e1000e/netdev.c
===================================================================
@@ -1164,9 +1164,9 @@ static bool e1000_clean_rx_irq_ps(struct
 			 */
 			dma_sync_single_for_cpu(&pdev->dev, ps_page->dma,
 						PAGE_SIZE, DMA_FROM_DEVICE);
-			vaddr = kmap_atomic(ps_page->page, KM_SKB_DATA_SOFTIRQ);
+			vaddr = kmap_atomic(ps_page->page);
 			memcpy(skb_tail_pointer(skb), vaddr, l1);
-			kunmap_atomic(vaddr, KM_SKB_DATA_SOFTIRQ);
+			kunmap_atomic(vaddr);
 			dma_sync_single_for_device(&pdev->dev, ps_page->dma,
 						   PAGE_SIZE, DMA_FROM_DEVICE);
 

Index: linux-2.6/drivers/scsi/arcmsr/arcmsr_hba.c
===================================================================
@@ -1761,7 +1761,7 @@ static int arcmsr_iop_message_xfer(struc
 						(uint32_t ) cmd->cmnd[8];
 						/* 4 bytes: Areca io control code */
 	sg = scsi_sglist(cmd);
-	buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
+	buffer = kmap_atomic(sg_page(sg)) + sg->offset;
 	if (scsi_sg_count(cmd) > 1) {
 		retvalue = ARCMSR_MESSAGE_FAIL;
 		goto message_out;

@@ -2010,7 +2010,7 @@ static int arcmsr_iop_message_xfer(struc
 	}
 	message_out:
 	sg = scsi_sglist(cmd);
-	kunmap_atomic(buffer - sg->offset, KM_IRQ0);
+	kunmap_atomic(buffer - sg->offset);
 	return retvalue;
 }
 

@@ -2060,11 +2060,11 @@ static void arcmsr_handle_virtual_comman
 		strncpy(&inqdata[32], "R001", 4); /* Product Revision */
 
 		sg = scsi_sglist(cmd);
-		buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
+		buffer = kmap_atomic(sg_page(sg)) + sg->offset;
 
 		memcpy(buffer, inqdata, sizeof(inqdata));
 		sg = scsi_sglist(cmd);
-		kunmap_atomic(buffer - sg->offset, KM_IRQ0);
+		kunmap_atomic(buffer - sg->offset);
 
 		cmd->scsi_done(cmd);
 	}

Index: linux-2.6/drivers/scsi/cxgb3i/cxgb3i_pdu.c
===================================================================
@@ -325,7 +325,7 @@ int cxgb3i_conn_init_pdu(struct iscsi_ta
 
 				memcpy(dst, src+frag->page_offset, frag->size);
 				dst += frag->size;
-				kunmap_atomic(src, KM_SOFTIRQ0);
+				kunmap_atomic(src);
 			}
 			if (padlen) {
 				memset(dst, 0, padlen);

Index: linux-2.6/drivers/scsi/fcoe/fcoe.c
===================================================================
@@ -1459,7 +1459,7 @@ u32 fcoe_fc_crc(struct fc_frame *fp)
 			data = kmap_atomic(frag->page + (off >> PAGE_SHIFT),
 					   KM_SKB_DATA_SOFTIRQ);
 			crc = crc32(crc, data + (off & ~PAGE_MASK), clen);
-			kunmap_atomic(data, KM_SKB_DATA_SOFTIRQ);
+			kunmap_atomic(data);
 			off += clen;
 			len -= clen;
 		}

@@ -1533,7 +1533,7 @@ int fcoe_xmit(struct fc_lport *lport, st
 			return -ENOMEM;
 		}
 		frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
-		cp = kmap_atomic(frag->page, KM_SKB_DATA_SOFTIRQ)
+		cp = kmap_atomic(frag->page)
 			+ frag->page_offset;
 	} else {
 		cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);

@@ -1544,7 +1544,7 @@ int fcoe_xmit(struct fc_lport *lport, st
 	cp->fcoe_crc32 = cpu_to_le32(~crc);
 
 	if (skb_is_nonlinear(skb)) {
-		kunmap_atomic(cp, KM_SKB_DATA_SOFTIRQ);
+		kunmap_atomic(cp);
 		cp = NULL;
 	}
 

Index: linux-2.6/drivers/scsi/gdth.c
===================================================================
@@ -2308,10 +2308,10 @@ static void gdth_copy_internal_data(gdth
                 return;
             }
             local_irq_save(flags);
-            address = kmap_atomic(sg_page(sl), KM_BIO_SRC_IRQ) + sl->offset;
+            address = kmap_atomic(sg_page(sl)) + sl->offset;
             memcpy(address, buffer, cpnow);
             flush_dcache_page(sg_page(sl));
-            kunmap_atomic(address, KM_BIO_SRC_IRQ);
+            kunmap_atomic(address);
             local_irq_restore(flags);
             if (cpsum == cpcount)
                 break;

Index: linux-2.6/drivers/scsi/ips.c
===================================================================
@@ -1509,14 +1509,14 @@ static int ips_is_passthru(struct scsi_c
                 /* kmap_atomic() ensures addressability of the user buffer.*/
                 /* local_irq_save() protects the KM_IRQ0 address slot.     */
                 local_irq_save(flags);
-                buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
+                buffer = kmap_atomic(sg_page(sg)) + sg->offset;
                 if (buffer && buffer[0] == 'C' && buffer[1] == 'O' &&
                     buffer[2] == 'P' && buffer[3] == 'P') {
-                        kunmap_atomic(buffer - sg->offset, KM_IRQ0);
+                        kunmap_atomic(buffer - sg->offset);
                         local_irq_restore(flags);
                         return 1;
                 }
-                kunmap_atomic(buffer - sg->offset, KM_IRQ0);
+                kunmap_atomic(buffer - sg->offset);
                 local_irq_restore(flags);
 	}
 	return 0;