From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Hugh Dickins <hughd@google.com>,
David Rientjes <rientjes@google.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Naoya Horiguchi <nao.horiguchi@gmail.com>
Subject: Re: [PATCH 0/6] hugepage migration fixes (v3)
Date: Mon, 1 Sep 2014 00:08:45 -0400 [thread overview]
Message-ID: <20140901040845.GA30158@nhori> (raw)
In-Reply-To: <87tx4sk7bs.fsf@tassilo.jf.intel.com>
On Sun, Aug 31, 2014 at 08:27:35AM -0700, Andi Kleen wrote:
> Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> writes:
>
> > This is the ver.3 of hugepage migration fix patchset.
>
> I wonder how far we are away from support THP migration with the
> standard migrate_pages() syscall?
I don't think that we are very far from this because we can borrow
some code from migrate_misplaced_transhuge_page(), and the experience
in hugetlb migration will be also helpful.
The difficulties are rather in integrating thp support in the existing
migrate code which is already very complicated, so careful code-reading
and testing is necessary.
This topic was in my agenda for long, but no highlight at this point.
Thanks,
Naoya Horiguchi
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prev parent reply other threads:[~2014-09-01 4:41 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-29 1:38 [PATCH 0/6] hugepage migration fixes (v3) Naoya Horiguchi
2014-08-29 1:38 ` [PATCH v3 1/6] mm/hugetlb: reduce arch dependent code around follow_huge_* Naoya Horiguchi
2014-09-03 19:40 ` Hugh Dickins
2014-08-29 1:38 ` [PATCH v3 2/6] mm/hugetlb: take page table lock in follow_huge_(addr|pmd|pud)() Naoya Horiguchi
2014-09-03 21:17 ` Hugh Dickins
2014-09-05 5:27 ` Naoya Horiguchi
2014-09-08 7:13 ` Hugh Dickins
2014-09-08 21:37 ` Naoya Horiguchi
2014-09-09 19:03 ` Hugh Dickins
2014-09-30 16:54 ` Kirill A. Shutemov
2014-08-29 1:38 ` [PATCH v3 3/6] mm/hugetlb: fix getting refcount 0 page in hugetlb_fault() Naoya Horiguchi
2014-09-04 0:20 ` Hugh Dickins
2014-09-05 5:28 ` Naoya Horiguchi
2014-08-29 1:38 ` [PATCH v3 4/6] mm/hugetlb: add migration entry check in hugetlb_change_protection Naoya Horiguchi
2014-09-04 1:06 ` Hugh Dickins
2014-09-05 5:28 ` Naoya Horiguchi
2014-08-29 1:38 ` [PATCH v3 5/6] mm/hugetlb: add migration entry check in __unmap_hugepage_range Naoya Horiguchi
2014-09-04 1:47 ` Hugh Dickins
2014-09-05 5:28 ` Naoya Horiguchi
2014-08-29 1:39 ` [PATCH v3 6/6] mm/hugetlb: remove unused argument of follow_huge_addr() Naoya Horiguchi
2014-09-03 21:26 ` Hugh Dickins
2014-09-05 5:29 ` Naoya Horiguchi
2014-08-31 15:27 ` [PATCH 0/6] hugepage migration fixes (v3) Andi Kleen
2014-09-01 4:08 ` Naoya Horiguchi [this message]
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