Re: [patch] hugetlb: correct page offset index for sharing pmd

[Hillf Danton]

On Fri, Aug 10, 2012 at 8:27 PM, Michal Hocko <mhocko@xxxxxxx> wrote:
>
> I guess you mean unmap_ref_private and that has been changed by you
> (0c176d5 mm: hugetlb: fix pgoff computation when unmapping page from
> vma)...  I was wrong at that time when giving my Reviewed-by. The patch
> didn't break anything because you still find all relevant vmas because
> vma_hugecache_offset just provides a smaller index which is still within
> boundaries.

No, as shown by the log message of 0c176d52b,  that fix was
triggered by  (vma->vm_pgoff >> PAGE_SHIFT), thus I dont see
what you really want to revert.


> I think that 0c176d52 should be reverted because we do not have to refer
> to the head page in this case and as we can see it causes confusion.
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/