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SubjectRe: [PATCH 1/2] shmem: fix tmpfs to handle the huge= option properly
Date
Toshi Kani <toshi.kani@hpe.com> writes:

> 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.
>

Any update on getting this merged ?

Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

> Reported-by: Hillf Danton <hillf.zj@alibaba-inc.com>
> Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> Cc: Hugh Dickins <hughd@google.com>
> ---
> mm/shmem.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/shmem.c b/mm/shmem.c
> index fd8b2b5..aec5b49 100644
> --- a/mm/shmem.c
> +++ b/mm/shmem.c
> @@ -1980,7 +1980,7 @@ unsigned long shmem_get_unmapped_area(struct file *file,
> return addr;
> sb = shm_mnt->mnt_sb;
> }
> - if (SHMEM_SB(sb)->huge != SHMEM_HUGE_NEVER)
> + if (SHMEM_SB(sb)->huge == SHMEM_HUGE_NEVER)
> return addr;
> }
>
>
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