diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/mremap.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/mm/mremap.c b/mm/mremap.c index 93adddecf97..20a07dba6be 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -175,6 +175,7 @@ static unsigned long move_vma(struct vm_area_struct *vma, unsigned long excess = 0; unsigned long hiwater_vm; int split = 0; + int err; /* * We'd prefer to avoid failure later on in do_munmap: @@ -190,9 +191,10 @@ static unsigned long move_vma(struct vm_area_struct *vma, * pages recently unmapped. But leave vma->vm_flags as it was, * so KSM can come around to merge on vma and new_vma afterwards. */ - if (ksm_madvise(vma, old_addr, old_addr + old_len, - MADV_UNMERGEABLE, &vm_flags)) - return -ENOMEM; + err = ksm_madvise(vma, old_addr, old_addr + old_len, + MADV_UNMERGEABLE, &vm_flags); + if (err) + return err; new_pgoff = vma->vm_pgoff + ((old_addr - vma->vm_start) >> PAGE_SHIFT); new_vma = copy_vma(&vma, new_addr, new_len, new_pgoff); |