Re: [RFC PATCH] fs: introduce ST_HUGE flag and set it to tmpfs and hugetlbfs

[Kirill A. Shutemov]

On Wed, Apr 18, 2018 at 01:26:35PM -0700, Mike Kravetz wrote:
> If an application would want to take advantage of this flag for tmpfs, it
> needs to map at a fixed address (MAP_FIXED) for huge page alignment.  So,
> it will need to do one of the 'mmap tricks' to get a mapping at a suitably
> aligned address.  

We don't need MAP_FIXED. We already have all required magic in
shmem_get_unmapped_area().

-- 
 Kirill A. Shutemov