From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <200405222207.i4MM76r12907@mail.osdl.org> Subject: [patch 21/57] mpol in copy_vma From: akpm@osdl.org Date: Sat, 22 May 2004 15:06:33 -0700 Sender: owner-linux-mm@kvack.org Return-Path: To: torvalds@osdl.org Cc: linux-mm@kvack.org, akpm@osdl.org, hugh@veritas.com List-ID: From: Hugh Dickins I think Andi missed the copy_vma I recently added for mremap, and it'll need something like below.... (Doesn't look like it'll optimize away when it's not needed - rather bloaty.) --- 25-akpm/mm/mmap.c | 7 +++++++ 1 files changed, 7 insertions(+) diff -puN mm/mmap.c~mpol-in-copy_vma mm/mmap.c --- 25/mm/mmap.c~mpol-in-copy_vma 2004-05-22 14:56:24.820318264 -0700 +++ 25-akpm/mm/mmap.c 2004-05-22 14:59:40.804524136 -0700 @@ -1504,6 +1504,7 @@ struct vm_area_struct *copy_vma(struct v struct mm_struct *mm = vma->vm_mm; struct vm_area_struct *new_vma, *prev; struct rb_node **rb_link, *rb_parent; + struct mempolicy *pol; find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent); new_vma = vma_merge(mm, prev, rb_parent, addr, addr + len, @@ -1519,6 +1520,12 @@ struct vm_area_struct *copy_vma(struct v new_vma = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL); if (new_vma) { *new_vma = *vma; + pol = mpol_copy(vma_policy(vma)); + if (IS_ERR(pol)) { + kmem_cache_free(vm_area_cachep, new_vma); + return NULL; + } + vma_set_policy(new_vma, pol); INIT_LIST_HEAD(&new_vma->shared); new_vma->vm_start = addr; new_vma->vm_end = addr + len; _ -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: aart@kvack.org