1 files changed, 28 insertions, 5 deletions

diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c
index 3387e60e4ea3..43d54f5b26b9 100644
--- a/arch/arm/mm/flush.c
+++ b/arch/arm/mm/flush.c
@@ -104,17 +104,20 @@ void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsig
 #define flush_icache_alias(pfn,vaddr,len)       do { } while (0)
 #endif
 
+#define FLAG_PA_IS_EXEC 1
+#define FLAG_PA_CORE_IN_MM 2
+
 static void flush_ptrace_access_other(void *args)
 {
         __flush_icache_all();
 }
 
-static
-void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
-                         unsigned long uaddr, void *kaddr, unsigned long len)
+static inline
+void __flush_ptrace_access(struct page *page, unsigned long uaddr, void *kaddr,
+                           unsigned long len, unsigned int flags)
 {
         if (cache_is_vivt()) {
-                if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) {
+                if (flags & FLAG_PA_CORE_IN_MM) {
                         unsigned long addr = (unsigned long)kaddr;
                         __cpuc_coherent_kern_range(addr, addr + len);
                 }
@@ -128,7 +131,7 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
         }
 
         /* VIPT non-aliasing D-cache */
-        if (vma->vm_flags & VM_EXEC) {
+        if (flags & FLAG_PA_IS_EXEC) {
                 unsigned long addr = (unsigned long)kaddr;
                 if (icache_is_vipt_aliasing())
                         flush_icache_alias(page_to_pfn(page), uaddr, len);
@@ -140,6 +143,26 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
         }
 }
 
+static
+void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
+                         unsigned long uaddr, void *kaddr, unsigned long len)
+{
+        unsigned int flags = 0;
+        if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm)))
+                flags |= FLAG_PA_CORE_IN_MM;
+        if (vma->vm_flags & VM_EXEC)
+                flags |= FLAG_PA_IS_EXEC;
+        __flush_ptrace_access(page, uaddr, kaddr, len, flags);
+}
+
+void flush_uprobe_xol_access(struct page *page, unsigned long uaddr,
+                             void *kaddr, unsigned long len)
+{
+        unsigned int flags = FLAG_PA_CORE_IN_MM|FLAG_PA_IS_EXEC;
+
+        __flush_ptrace_access(page, uaddr, kaddr, len, flags);
+}
+
 /*
  * Copy user data from/to a page which is mapped into a different
  * processes address space.  Really, we want to allow our "user