diff options
| -rw-r--r-- | ipc/shm.c | 5 | ||||
| -rw-r--r-- | mm/mempolicy.c | 7 |
2 files changed, 9 insertions, 3 deletions
diff --git a/ipc/shm.c b/ipc/shm.c index c47e87278a92..cc63fae02f06 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -271,9 +271,10 @@ static struct mempolicy *shm_get_policy(struct vm_area_struct *vma, if (sfd->vm_ops->get_policy) pol = sfd->vm_ops->get_policy(vma, addr); - else if (vma->vm_policy) + else if (vma->vm_policy) { pol = vma->vm_policy; - else + mpol_get(pol); /* get_vma_policy() expects this */ + } else pol = current->mempolicy; return pol; } diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 6c7ba1a63d23..3c3601121509 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1296,7 +1296,9 @@ struct zonelist *huge_zonelist(struct vm_area_struct *vma, unsigned long addr, unsigned nid; nid = interleave_nid(pol, vma, addr, HPAGE_SHIFT); - __mpol_free(pol); /* finished with pol */ + if (unlikely(pol != &default_policy && + pol != current->mempolicy)) + __mpol_free(pol); /* finished with pol */ return NODE_DATA(nid)->node_zonelists + gfp_zone(gfp_flags); } @@ -1360,6 +1362,9 @@ alloc_page_vma(gfp_t gfp, struct vm_area_struct *vma, unsigned long addr) unsigned nid; nid = interleave_nid(pol, vma, addr, PAGE_SHIFT); + if (unlikely(pol != &default_policy && + pol != current->mempolicy)) + __mpol_free(pol); /* finished with pol */ return alloc_page_interleave(gfp, 0, nid); } zl = zonelist_policy(gfp, pol); |