Re: [RESEND][PATCH v5 1/3] hugetlbfs: stop setting VM_DONTDUMP ininitializing vma(VM_HUGETLB)

From: David Rientjes
Date: Wed Apr 10 2013 - 17:46:15 EST


On Wed, 10 Apr 2013, Naoya Horiguchi wrote:

> Currently we fail to include any data on hugepages into coredump,
> because VM_DONTDUMP is set on hugetlbfs's vma. This behavior was recently
> introduced by commit 314e51b98 "mm: kill vma flag VM_RESERVED and
> mm->reserved_vm counter". This looks to me a serious regression,
> so let's fix it.
>
> ChangeLog v3:
> - move 'return 0' into a separate patch
>
> ChangeLog v2:
> - add 'return 0' in hugepage memory check
>
> Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
> Acked-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxx>
> Acked-by: Michal Hocko <mhocko@xxxxxxx>
> Reviewed-by: Rik van Riel <riel@xxxxxxxxxx>
> Acked-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx

Acked-by: David Rientjes <rientjes@xxxxxxxxxx>

Stable for 3.7+.
--
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/