On Fri, Oct 24, 2014 at 03:06:13PM -0700, Davidlohr Bueso wrote:
> diff --git a/mm/fremap.c b/mm/fremap.c
> index 72b8fa3..11ef7ec 100644
> --- a/mm/fremap.c
> +++ b/mm/fremap.c
> @@ -238,13 +238,13 @@ get_write_lock:
> }
> goto out_freed;
> }
> - mutex_lock(&mapping->i_mmap_mutex);
> + i_mmap_lock_write(mapping);
> flush_dcache_mmap_lock(mapping);
> vma->vm_flags |= VM_NONLINEAR;
> vma_interval_tree_remove(vma, &mapping->i_mmap);
> vma_nonlinear_insert(vma, &mapping->i_mmap_nonlinear);
> flush_dcache_mmap_unlock(mapping);
> - mutex_unlock(&mapping->i_mmap_mutex);
> + i_mmap_unlock_write(mapping);
> }
>
> if (vma->vm_flags & VM_LOCKED) {
This should go to previous patch.
--
Kirill A. Shutemov
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