Re: [PATCH 1/2] shmem: fix tmpfs to handle the huge= option properly

From: Kirill A. Shutemov
Date: Mon Sep 12 2016 - 06:00:17 EST

On Fri, Sep 09, 2016 at 04:24:22PM -0600, Toshi Kani wrote:
> shmem_get_unmapped_area() checks SHMEM_SB(sb)->huge incorrectly,
> which leads to a reversed effect of "huge=" mount option.
> Fix the check in shmem_get_unmapped_area().
> Note, the default value of SHMEM_SB(sb)->huge remains as
> SHMEM_HUGE_NEVER. User will need to specify "huge=" option to
> enable huge page mappings.
> Reported-by: Hillf Danton <hillf.zj@xxxxxxxxxxxxxxx>
> Signed-off-by: Toshi Kani <toshi.kani@xxxxxxx>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
> Cc: Hugh Dickins <hughd@xxxxxxxxxx>

Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>

Kirill A. Shutemov