1 files changed, 16 insertions, 14 deletions

diff --git a/mm/mprotect.c b/mm/mprotect.c
index 3dca970367db..94722a4d6b43 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -114,7 +114,7 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 
 #ifdef CONFIG_NUMA_BALANCING
 static inline void change_pmd_protnuma(struct mm_struct *mm, unsigned long addr,
-                pmd_t *pmd)
+                                       pmd_t *pmd)
 {
         spin_lock(&mm->page_table_lock);
         set_pmd_at(mm, addr & PMD_MASK, pmd, pmd_mknuma(*pmd));
@@ -122,15 +122,15 @@ static inline void change_pmd_protnuma(struct mm_struct *mm, unsigned long addr,
 }
 #else
 static inline void change_pmd_protnuma(struct mm_struct *mm, unsigned long addr,
-                pmd_t *pmd)
+                                       pmd_t *pmd)
 {
         BUG();
 }
 #endif /* CONFIG_NUMA_BALANCING */
 
-static inline unsigned long change_pmd_range(struct vm_area_struct *vma, pud_t *pud,
-                unsigned long addr, unsigned long end, pgprot_t newprot,
-                int dirty_accountable, int prot_numa)
+static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
+                pud_t *pud, unsigned long addr, unsigned long end,
+                pgprot_t newprot, int dirty_accountable, int prot_numa)
 {
         pmd_t *pmd;
         unsigned long next;
@@ -143,7 +143,8 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma, pud_t *
                 if (pmd_trans_huge(*pmd)) {
                         if (next - addr != HPAGE_PMD_SIZE)
                                 split_huge_page_pmd(vma, addr, pmd);
-                        else if (change_huge_pmd(vma, pmd, addr, newprot, prot_numa)) {
+                        else if (change_huge_pmd(vma, pmd, addr, newprot,
+                                                 prot_numa)) {
                                 pages += HPAGE_PMD_NR;
                                 continue;
                         }
@@ -167,9 +168,9 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma, pud_t *
         return pages;
 }
 
-static inline unsigned long change_pud_range(struct vm_area_struct *vma, pgd_t *pgd,
-                unsigned long addr, unsigned long end, pgprot_t newprot,
-                int dirty_accountable, int prot_numa)
+static inline unsigned long change_pud_range(struct vm_area_struct *vma,
+                pgd_t *pgd, unsigned long addr, unsigned long end,
+                pgprot_t newprot, int dirty_accountable, int prot_numa)
 {
         pud_t *pud;
         unsigned long next;
@@ -304,7 +305,8 @@ success:
                 dirty_accountable = 1;
         }
 
-        change_protection(vma, start, end, vma->vm_page_prot, dirty_accountable, 0);
+        change_protection(vma, start, end, vma->vm_page_prot,
+                          dirty_accountable, 0);
 
         vm_stat_account(mm, oldflags, vma->vm_file, -nrpages);
         vm_stat_account(mm, newflags, vma->vm_file, nrpages);
@@ -361,8 +363,7 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
                 error = -EINVAL;
                 if (!(vma->vm_flags & VM_GROWSDOWN))
                         goto out;
-        }
-        else {
+        } else {
                 if (vma->vm_start > start)
                         goto out;
                 if (unlikely(grows & PROT_GROWSUP)) {
@@ -378,9 +379,10 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
         for (nstart = start ; ; ) {
                 unsigned long newflags;
 
-                /* Here we know that  vma->vm_start <= nstart < vma->vm_end. */
+                /* Here we know that vma->vm_start <= nstart < vma->vm_end. */
 
-                newflags = vm_flags | (vma->vm_flags & ~(VM_READ | VM_WRITE | VM_EXEC));
+                newflags = vm_flags;
+                newflags |= (vma->vm_flags & ~(VM_READ | VM_WRITE | VM_EXEC));
 
                 /* newflags >> 4 shift VM_MAY% in place of VM_% */
                 if ((newflags & ~(newflags >> 4)) & (VM_READ | VM_WRITE | VM_EXEC)) {