---

yaml --- r: 332343 b: refs/heads/master c: 0103bd1 h: refs/heads/master i: 332341: adecb10 332339: 2c3c0c5 332335: 08af4a2 v: v3
git-mirror · Oct 9, 2012 · de7410c · de7410c
1 parent 52490a6
commit de7410c
Show file tree

Hide file tree

Showing 4 changed files with 9 additions and 5 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e9714acf8c439688884234dcac2bfc38bb607d38
+refs/heads/master: 0103bd16fb90bc741c7a03fd1ea4e8a505abad23
diff --git a/trunk/fs/binfmt_elf.c b/trunk/fs/binfmt_elf.c
@@ -1123,7 +1123,7 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma,
 	if (always_dump_vma(vma))
 		goto whole;
 
-	if (vma->vm_flags & VM_NODUMP)
+	if (vma->vm_flags & VM_DONTDUMP)
 		return 0;
 
 	/* Hugetlb memory check */

diff --git a/trunk/include/linux/mm.h b/trunk/include/linux/mm.h
@@ -102,7 +102,7 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_HUGETLB	0x00400000	/* Huge TLB Page VM */
 #define VM_NONLINEAR	0x00800000	/* Is non-linear (remap_file_pages) */
 #define VM_ARCH_1	0x01000000	/* Architecture-specific flag */
-#define VM_NODUMP	0x04000000	/* Do not include in the core dump */
+#define VM_DONTDUMP	0x04000000	/* Do not include in the core dump */
 
 #define VM_MIXEDMAP	0x10000000	/* Can contain "struct page" and pure PFN pages */
 #define VM_HUGEPAGE	0x20000000	/* MADV_HUGEPAGE marked this vma */

diff --git a/trunk/mm/madvise.c b/trunk/mm/madvise.c
@@ -69,10 +69,14 @@ static long madvise_behavior(struct vm_area_struct * vma,
 		new_flags &= ~VM_DONTCOPY;
 		break;
 	case MADV_DONTDUMP:
-		new_flags |= VM_NODUMP;
+		new_flags |= VM_DONTDUMP;
 		break;
 	case MADV_DODUMP:
-		new_flags &= ~VM_NODUMP;
+		if (new_flags & VM_SPECIAL) {
+			error = -EINVAL;
+			goto out;
+		}
+		new_flags &= ~VM_DONTDUMP;
 		break;
 	case MADV_MERGEABLE:
 	case MADV_UNMERGEABLE: