Merge branch 'linus' into core/iommu

5 files changed, 11 insertions, 13 deletions

diff --git a/arch/arm/mm/abort-ev6.S b/arch/arm/mm/abort-ev6.S
index 8a7f65ba14b7..94077fbd96b7 100644
--- a/arch/arm/mm/abort-ev6.S
+++ b/arch/arm/mm/abort-ev6.S
@@ -23,7 +23,8 @@ ENTRY(v6_early_abort)
 #ifdef CONFIG_CPU_32v6K
 	clrex
 #else
-	strex	r0, r1, [sp]			@ Clear the exclusive monitor
+	sub	r1, sp, #4			@ Get unused stack location
+	strex	r0, r1, [r1]			@ Clear the exclusive monitor
 #endif
 	mrc	p15, 0, r1, c5, c0, 0		@ get FSR
 	mrc	p15, 0, r0, c6, c0, 0		@ get FAR
diff --git a/arch/arm/mm/copypage-v4mc.c b/arch/arm/mm/copypage-v4mc.c
index bdb5fd983b15..1601698b9800 100644
--- a/arch/arm/mm/copypage-v4mc.c
+++ b/arch/arm/mm/copypage-v4mc.c
@@ -68,7 +68,7 @@ mc_copy_user_page(void *from, void *to)
 	: "r" (from), "r" (to), "I" (PAGE_SIZE / 64));
 }
 
-void v4_mc_copy_user_highpage(struct page *from, struct page *to,
+void v4_mc_copy_user_highpage(struct page *to, struct page *from,
 	unsigned long vaddr)
 {
 	void *kto = kmap_atomic(to, KM_USER1);
diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c
index 81d0b8772de3..bc0099d5ae85 100644
--- a/arch/arm/mm/fault-armv.c
+++ b/arch/arm/mm/fault-armv.c
@@ -66,7 +66,10 @@ static int adjust_pte(struct vm_area_struct *vma, unsigned long address)
 	 * fault (ie, is old), we can safely ignore any issues.
 	 */
 	if (ret && (pte_val(entry) & L_PTE_MT_MASK) != shared_pte_mask) {
-		flush_cache_page(vma, address, pte_pfn(entry));
+		unsigned long pfn = pte_pfn(entry);
+		flush_cache_page(vma, address, pfn);
+		outer_flush_range((pfn << PAGE_SHIFT),
+				  (pfn << PAGE_SHIFT) + PAGE_SIZE);
 		pte_val(entry) &= ~L_PTE_MT_MASK;
 		pte_val(entry) |= shared_pte_mask;
 		set_pte_at(vma->vm_mm, address, pte, entry);
diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
index 18373f73f2fc..9f88dd3be601 100644
--- a/arch/arm/mm/ioremap.c
+++ b/arch/arm/mm/ioremap.c
@@ -138,7 +138,7 @@ void __check_kvm_seq(struct mm_struct *mm)
  */
 static void unmap_area_sections(unsigned long virt, unsigned long size)
 {
-	unsigned long addr = virt, end = virt + (size & ~SZ_1M);
+	unsigned long addr = virt, end = virt + (size & ~(SZ_1M - 1));
 	pgd_t *pgd;
 
 	flush_cache_vunmap(addr, end);
@@ -337,10 +337,7 @@ void __iounmap(volatile void __iomem *io_addr)
 	void *addr = (void *)(PAGE_MASK & (unsigned long)io_addr);
 #ifndef CONFIG_SMP
 	struct vm_struct **p, *tmp;
-#endif
-	unsigned int section_mapping = 0;
 
-#ifndef CONFIG_SMP
 	/*
 	 * If this is a section based mapping we need to handle it
 	 * specially as the VM subsystem does not know how to handle
@@ -352,11 +349,8 @@ void __iounmap(volatile void __iomem *io_addr)
 	for (p = &vmlist ; (tmp = *p) ; p = &tmp->next) {
 		if ((tmp->flags & VM_IOREMAP) && (tmp->addr == addr)) {
 			if (tmp->flags & VM_ARM_SECTION_MAPPING) {
-				*p = tmp->next;
 				unmap_area_sections((unsigned long)tmp->addr,
 						    tmp->size);
-				kfree(tmp);
-				section_mapping = 1;
 			}
 			break;
 		}
@@ -364,7 +358,6 @@ void __iounmap(volatile void __iomem *io_addr)
 	write_unlock(&vmlist_lock);
 #endif
 
-	if (!section_mapping)
-		vunmap(addr);
+	vunmap(addr);
 }
 EXPORT_SYMBOL(__iounmap);
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 9b36c5cb5e9f..d4d082c5c2d4 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -693,7 +693,8 @@ static void __init sanity_check_meminfo(void)
 		 * Check whether this memory bank would entirely overlap
 		 * the vmalloc area.
 		 */
-		if (__va(bank->start) >= VMALLOC_MIN) {
+		if (__va(bank->start) >= VMALLOC_MIN ||
+		    __va(bank->start) < PAGE_OFFSET) {
 			printk(KERN_NOTICE "Ignoring RAM at %.8lx-%.8lx "
 			       "(vmalloc region overlap).\n",
 			       bank->start, bank->start + bank->size - 1);