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Wed, 05 Apr 2023 02:53:49 -0700 (PDT) Received: from [10.200.10.217] ([139.177.225.248]) by smtp.gmail.com with ESMTPSA id p4-20020a1709026b8400b001a053b7e892sm9714095plk.195.2023.04.05.02.53.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 05 Apr 2023 02:53:49 -0700 (PDT) Message-ID: <1d3b071f-ead7-4431-c9f8-c712e7c8bdc6@bytedance.com> Date: Wed, 5 Apr 2023 17:53:44 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.9.1 Subject: Re: [PATCH v2 0/3] Some fixes and cleanup for maple tree. To: Andrew Morton Cc: Liam.Howlett@oracle.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, maple-tree@lists.infradead.org References: <20230314124203.91572-1-zhangpeng.00@bytedance.com> <20230404132702.9240f3a77d0c00fca4b9bf55@linux-foundation.org> From: Peng Zhang In-Reply-To: <20230404132702.9240f3a77d0c00fca4b9bf55@linux-foundation.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 07DE1120010 X-Stat-Signature: 499dac47pn9mpz4nepwinmzoy97a38sm X-HE-Tag: 1680688430-972503 X-HE-Meta: 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 yIzmhl/J VWG415z5St/rRR9aAPcS+Iu1EZ9e87AKmOOP6s3lUXUym25jvjPdIGvhDEZoOlkGlxqaa6Jsrk3ZNJ8gew3gIiP+YrwaiW+cLWzhjuYJcXR1uL0H/UnfQFZRzlWqJ83PZPsCnuNbVbB+BnKvzyp773mld9BslIxnC5aTgWyt14dWMoLE78qijRX6ChQ6PHEy2InMAxUXdnUiJPboqxZfCVWwRaD2oXsg+CDuv6HbdajYLVO4aW6JMJ54bwA9fSgIbyYT6VWhReEYE3U4Jiq7KO2jd0m3OGvzfinaLTtN11hFB9Sy+8u/KdYTXqMrMsiqP5O7/7pTq0+6EOolVqQhHxCV24ZKYiSUEgwludzqsGx8/HpRGMN8G6nx8/WnfnQAIbErb4NqHicJaSNgoiuy9KtERMg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000011, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 在 2023/4/5 04:27, Andrew Morton 写道: > On Tue, 14 Mar 2023 20:42:00 +0800 Peng Zhang wrote: > >> Some fixes and clean up for maple tree. >> >> The bug fixed by [PATCH v2 1/3] does not seem to be triggered due to some >> coincidences, because now the implementation of mtree_lookup_walk() scans >> pivots one by one and exits the loop early. The test cases for the bugs fixed by >> [PATCH v2 3/3] are difficult to write. If I think of how to write them later, >> I will send them out. So I send out the second edition first. > Do we feel that any of these should be backported into -stable kernels? > [3/3] looks to be a candidate for this? Both [1/3] and [3/3] can be sent to the stable kernel, do I need to do anything?