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Sun, 01 Nov 2026 07:16:17 +0000 X-Mizu-Trace-ID: 3d2700dedfd938b8 X-Migadu-Flow: FLOW_OUT Message-ID: Date: Sun, 1 Nov 2026 15:16:09 +0800 X-Archived-By: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 11/12] mm: hugetlb_vmemmap: unify vmemmap range restoration To: Muchun Song , Oscar Salvador , Andrew Morton , Mike Rapoport Cc: Lance Yang , James Houghton , David Hildenbrand , Muchun Song , linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20261020115306.813483-1-songmuchun@bytedance.com> <20261020115824.823278-1-songmuchun@bytedance.com> <20261020115824.823278-10-songmuchun@bytedance.com> From: Qi Zheng In-Reply-To: <20261020115824.823278-10-songmuchun@bytedance.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 9A58140002 X-Stat-Signature: 3mbsy6uzrnw1dh4smi1ig381x6ssce83 X-Spam-Status: No, score=-17.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_PASS, SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=4.0.1 X-Rspam-User: X-Rspamd-Server: rspam09 X-HE-Tag: 1793517381-378760 X-HE-Meta: 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 NhQSpxq1 0QlWq7w1Vx/cjHsnfO48TSm/FXT6YJLfdg7kC851PYWxPpu+YATNeo1xzMX4z2XvMqVfrZl1akbT4tDKnAaXdvapg62HQmHFxPJ/ze8pt+kdAgGB/qtuc1l7SMFx6y+TfcBlIN6uXC2q9WyloS5l1cNOLu19brDEepQl8lky6sXCpBLl5CGNJMxALsAhlrXJq3Y7WD09e7YRp6KDAO0cfrdymklD/MjvsnoTYRZitdyPo6pwTrqjoGsdSLxVEJSbOmkXtIE9up/qivJ7jFIGlbALlTfrdqombQi21o9oqgPFkSAnGQgfbY1CaV9hUDVLQssNPyr7faKmonN8xXQNBqi21WQ== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On 10/20/26 7:58 PM, Muchun Song wrote: > Restoring an optimized folio and rolling back a partial optimization > both restore a vmemmap range, but the operation is currently implemented > separately in each path. > > Use a single range-restoration path for both cases, making rollback an > explicit bounded form of normal restoration. > > No functional change intended. > > Signed-off-by: Muchun Song > --- > mm/hugetlb_vmemmap.c | 33 ++++++++++++++------------------- > 1 file changed, 14 insertions(+), 19 deletions(-) Reviewed-by: Qi Zheng Thanks, Qi