Update from upstream with manual merge of Yasunori Goto's

changes to swiotlb.c made in commit 281dd25cdc0d6903929b79183816d151ea626341
since this file has been moved from arch/ia64/lib/swiotlb.c to
lib/swiotlb.c

Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 7 insertions, 7 deletions

diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c
index 80ed6188e8a2..f5b0636f9ad7 100644
--- a/arch/um/kernel/tlb.c
+++ b/arch/um/kernel/tlb.c
@@ -193,12 +193,12 @@ void fix_range_common(struct mm_struct *mm, unsigned long start_addr,
                 r = pte_read(*npte);
                 w = pte_write(*npte);
                 x = pte_exec(*npte);
-                if(!pte_dirty(*npte))
-                        w = 0;
-                if(!pte_young(*npte)){
-                        r = 0;
-                        w = 0;
-                }
+                if (!pte_young(*npte)) {
+                        r = 0;
+                        w = 0;
+                } else if (!pte_dirty(*npte)) {
+                        w = 0;
+                }
                 if(force || pte_newpage(*npte)){
                         if(pte_present(*npte))
                           ret = add_mmap(addr,
@@ -307,7 +307,7 @@ int flush_tlb_kernel_range_common(unsigned long start, unsigned long end)
                 }
                 else if(pte_newprot(*pte)){
                         updated = 1;
-                        protect_memory(addr, PAGE_SIZE, 1, 1, 1, 1);
+                        os_protect_memory((void *) addr, PAGE_SIZE, 1, 1, 1);
                 }
                 addr += PAGE_SIZE;
         }