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authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2011-05-26 19:16:19 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-26 09:20:31 -0700
commitca16d140af91febe25daeb9e032bf8bd46b8c31f (patch)
treea093c3f244a1bdfc2a50e271a7e6df3324df0f05 /mm/mlock.c
parent4db70f73e56961b9bcdfd0c36c62847a18b7dbb5 (diff)
downloadlinux-ca16d140af91febe25daeb9e032bf8bd46b8c31f.tar.gz
mm: don't access vm_flags as 'int'
The type of vma->vm_flags is 'unsigned long'. Neither 'int' nor
'unsigned int'. This patch fixes such misuse.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
[ Changed to use a typedef - we'll extend it to cover more cases
  later, since there has been discussion about making it a 64-bit
  type..                      - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mlock.c')
-rw-r--r--mm/mlock.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/mlock.c b/mm/mlock.c
index 516b2c2ddd5a..048260c4e02e 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -307,13 +307,13 @@ void munlock_vma_pages_range(struct vm_area_struct *vma,
  * For vmas that pass the filters, merge/split as appropriate.
  */
 static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,
-	unsigned long start, unsigned long end, unsigned int newflags)
+	unsigned long start, unsigned long end, vm_flags_t newflags)
 {
 	struct mm_struct *mm = vma->vm_mm;
 	pgoff_t pgoff;
 	int nr_pages;
 	int ret = 0;
-	int lock = newflags & VM_LOCKED;
+	int lock = !!(newflags & VM_LOCKED);
 
 	if (newflags == vma->vm_flags || (vma->vm_flags & VM_SPECIAL) ||
 	    is_vm_hugetlb_page(vma) || vma == get_gate_vma(current->mm))
@@ -385,7 +385,7 @@ static int do_mlock(unsigned long start, size_t len, int on)
 		prev = vma;
 
 	for (nstart = start ; ; ) {
-		unsigned int newflags;
+		vm_flags_t newflags;
 
 		/* Here we know that  vma->vm_start <= nstart < vma->vm_end. */
 
@@ -524,7 +524,7 @@ static int do_mlockall(int flags)
 		goto out;
 
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
-		unsigned int newflags;
+		vm_flags_t newflags;
 
 		newflags = vma->vm_flags | VM_LOCKED;
 		if (!(flags & MCL_CURRENT))