X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=mm%2Fmprotect.c;h=4c14d4289b61a69406140bfa9d0e1cf5919d99c7;hb=44d53eb041d901620b1090590a549a705767fd10;hp=17a2b52b753b0c5ac855abeed9cc5a2934685bd0;hpb=1ef43204f4bd24dcd3156185b19b31b6b4151ae9;p=linux-2.6-omap-h63xx.git

diff --git a/mm/mprotect.c b/mm/mprotect.c
index 17a2b52b753..4c14d4289b6 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -124,15 +124,7 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
 	 * a MAP_NORESERVE private mapping to writable will now reserve.
 	 */
 	if (newflags & VM_WRITE) {
-		if (oldflags & VM_RESERVED) {
-			BUG_ON(oldflags & VM_WRITE);
-			printk(KERN_WARNING "program %s is using MAP_PRIVATE, "
-				"PROT_WRITE mprotect of VM_RESERVED memory, "
-				"which is deprecated. Please report this to "
-				"linux-kernel@vger.kernel.org\n",current->comm);
-			return -EACCES;
-		}
-		if (!(oldflags & (VM_ACCOUNT|VM_WRITE|VM_SHARED|VM_HUGETLB))) {
+		if (!(oldflags & (VM_ACCOUNT|VM_WRITE|VM_SHARED))) {
 			charged = nrpages;
 			if (security_vm_enough_memory(charged))
 				return -ENOMEM;
@@ -174,7 +166,10 @@ success:
 	 */
 	vma->vm_flags = newflags;
 	vma->vm_page_prot = newprot;
-	change_protection(vma, start, end, newprot);
+	if (is_vm_hugetlb_page(vma))
+		hugetlb_change_protection(vma, start, end, newprot);
+	else
+		change_protection(vma, start, end, newprot);
 	vm_stat_account(mm, oldflags, vma->vm_file, -nrpages);
 	vm_stat_account(mm, newflags, vma->vm_file, nrpages);
 	return 0;
@@ -248,11 +243,6 @@ sys_mprotect(unsigned long start, size_t len, unsigned long prot)
 
 		/* Here we know that  vma->vm_start <= nstart < vma->vm_end. */
 
-		if (is_vm_hugetlb_page(vma)) {
-			error = -EACCES;
-			goto out;
-		}
-
 		newflags = vm_flags | (vma->vm_flags & ~(VM_READ | VM_WRITE | VM_EXEC));
 
 		/* newflags >> 4 shift VM_MAY% in place of VM_% */