X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Fmempolicy.c;h=afa06e184d88a93311708bdfb1e15077859e29c4;hb=d67eb16f5d444fb6d173bcec889ddb2066c0fa0c;hp=1694845526be5db9c18ef0183110435a0ccf9ab7;hpb=839c5d2511fadc35cc4e8a8ffa833d76668700b2;p=linux-2.6

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 1694845526..afa06e184d 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -88,7 +88,7 @@ static kmem_cache_t *sn_cache;
    policied. */
 static int policy_zone;
 
-static struct mempolicy default_policy = {
+struct mempolicy default_policy = {
 	.refcnt = ATOMIC_INIT(1), /* never free it */
 	.policy = MPOL_DEFAULT,
 };
@@ -443,7 +443,7 @@ asmlinkage long sys_set_mempolicy(int mode, unsigned long __user *nmask,
 	struct mempolicy *new;
 	DECLARE_BITMAP(nodes, MAX_NUMNODES);
 
-	if (mode > MPOL_MAX)
+	if (mode < 0 || mode > MPOL_MAX)
 		return -EINVAL;
 	err = get_nodes(nodes, nmask, maxnode, mode);
 	if (err)
@@ -664,10 +664,10 @@ asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
 #endif
 
 /* Return effective policy for a VMA */
-static struct mempolicy *
-get_vma_policy(struct vm_area_struct *vma, unsigned long addr)
+struct mempolicy *
+get_vma_policy(struct task_struct *task, struct vm_area_struct *vma, unsigned long addr)
 {
-	struct mempolicy *pol = current->mempolicy;
+	struct mempolicy *pol = task->mempolicy;
 
 	if (vma) {
 		if (vma->vm_ops && vma->vm_ops->get_policy)
@@ -786,7 +786,7 @@ static struct page *alloc_page_interleave(unsigned int __nocast gfp, unsigned or
 struct page *
 alloc_page_vma(unsigned int __nocast gfp, struct vm_area_struct *vma, unsigned long addr)
 {
-	struct mempolicy *pol = get_vma_policy(vma, addr);
+	struct mempolicy *pol = get_vma_policy(current, vma, addr);
 
 	cpuset_update_current_mems_allowed();
 
@@ -908,7 +908,7 @@ void __mpol_free(struct mempolicy *p)
 /* Find first node suitable for an allocation */
 int mpol_first_node(struct vm_area_struct *vma, unsigned long addr)
 {
-	struct mempolicy *pol = get_vma_policy(vma, addr);
+	struct mempolicy *pol = get_vma_policy(current, vma, addr);
 
 	switch (pol->policy) {
 	case MPOL_DEFAULT:
@@ -928,7 +928,7 @@ int mpol_first_node(struct vm_area_struct *vma, unsigned long addr)
 /* Find secondary valid nodes for an allocation */
 int mpol_node_valid(int nid, struct vm_area_struct *vma, unsigned long addr)
 {
-	struct mempolicy *pol = get_vma_policy(vma, addr);
+	struct mempolicy *pol = get_vma_policy(current, vma, addr);
 
 	switch (pol->policy) {
 	case MPOL_PREFERRED: