aboutsummaryrefslogtreecommitdiffstats
path: root/mm
diff options
context:
space:
mode:
authorAndrew Morton <akpm@linux-foundation.org>2012-12-18 14:23:17 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-18 15:02:15 -0800
commit7d12efaea7e74bf8f4953412514e836313fa32ec (patch)
tree63aeb87bc6135cd9b7e7c77e2b4a1e8d578fb2b4 /mm
parent5bbe1ec11fcf08af086ae214cdd4f4da0f25ca46 (diff)
mm/mprotect.c: coding-style cleanups
A few gremlins have recently crept in. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/mprotect.c30
1 files changed, 16 insertions, 14 deletions
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 3dca970367d..94722a4d6b4 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)) {