From: Muchun Song <muchun.song@linux.dev>
To: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Linux-MM <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
Muchun Song <songmuchun@bytedance.com>,
Joao Martins <joao.m.martins@oracle.com>,
Oscar Salvador <osalvador@suse.de>,
David Hildenbrand <david@redhat.com>,
Miaohe Lin <linmiaohe@huawei.com>,
David Rientjes <rientjes@google.com>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Naoya Horiguchi <naoya.horiguchi@linux.dev>,
Barry Song <21cnbao@gmail.com>, Michal Hocko <mhocko@suse.com>,
Matthew Wilcox <willy@infradead.org>,
Xiongchun Duan <duanxiongchun@bytedance.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH v6 4/8] hugetlb: perform vmemmap restoration on a list of pages
Date: Tue, 26 Sep 2023 10:27:39 +0800 [thread overview]
Message-ID: <7DF23E7C-F039-44F4-8204-BA463534B09F@linux.dev> (raw)
In-Reply-To: <20230925234837.86786-5-mike.kravetz@oracle.com>
> On Sep 26, 2023, at 07:48, Mike Kravetz <mike.kravetz@oracle.com> wrote:
>
> The routine update_and_free_pages_bulk already performs vmemmap
> restoration on the list of hugetlb pages in a separate step. In
> preparation for more functionality to be added in this step, create a
> new routine hugetlb_vmemmap_restore_folios() that will restore
> vmemmap for a list of folios.
>
> This new routine must provide sufficient feedback about errors and
> actual restoration performed so that update_and_free_pages_bulk can
> perform optimally.
>
> Special care must be taken when encountering an error from
> hugetlb_vmemmap_restore_folios. We want to continue making as much
> forward progress as possible. A new routine bulk_vmemmap_restore_error
> handles this specific situation.
>
> Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Thanks for your continue working on this.
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
next prev parent reply other threads:[~2023-09-26 2:28 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-25 23:48 [PATCH v6 0/8] Batch hugetlb vmemmap modification operations Mike Kravetz
2023-09-25 23:48 ` [PATCH v6 1/8] hugetlb: optimize update_and_free_pages_bulk to avoid lock cycles Mike Kravetz
2023-09-25 23:48 ` [PATCH v6 2/8] hugetlb: restructure pool allocations Mike Kravetz
2023-09-27 11:26 ` Konrad Dybcio
2023-09-29 20:57 ` Mike Kravetz
2023-10-02 9:57 ` Konrad Dybcio
2023-10-06 3:08 ` Mike Kravetz
2023-10-06 21:39 ` Konrad Dybcio
2023-10-06 22:35 ` Mike Kravetz
2023-10-09 3:29 ` Mike Kravetz
2023-10-09 10:11 ` Konrad Dybcio
2023-10-09 15:04 ` Mike Kravetz
2023-10-09 15:15 ` Mike Kravetz
2023-10-09 21:09 ` Konrad Dybcio
2023-10-10 1:26 ` Mike Kravetz
2023-10-10 0:07 ` Andrew Morton
2023-10-10 21:30 ` Konrad Dybcio
2023-10-10 21:45 ` Mike Kravetz
2023-10-11 9:36 ` Konrad Dybcio
2023-10-09 21:09 ` Konrad Dybcio
2023-10-07 1:51 ` Jane Chu
2023-10-09 10:13 ` Konrad Dybcio
2023-09-25 23:48 ` [PATCH v6 3/8] hugetlb: perform vmemmap optimization on a list of pages Mike Kravetz
2023-09-25 23:48 ` [PATCH v6 4/8] hugetlb: perform vmemmap restoration " Mike Kravetz
2023-09-26 2:27 ` Muchun Song [this message]
2023-09-29 22:10 ` Mike Kravetz
2023-09-25 23:48 ` [PATCH v6 5/8] hugetlb: batch freeing of vmemmap pages Mike Kravetz
2023-09-25 23:48 ` [PATCH v6 6/8] hugetlb: batch PMD split for bulk vmemmap dedup Mike Kravetz
2023-09-25 23:48 ` [PATCH v6 7/8] hugetlb: batch TLB flushes when freeing vmemmap Mike Kravetz
2023-09-25 23:48 ` [PATCH v6 8/8] hugetlb: batch TLB flushes when restoring vmemmap Mike Kravetz
2023-09-26 2:20 ` Muchun Song
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