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b=ayPWzMwreOLvA21im9dtVCWWgMMb6FL06aDWSybg0HVRHAbh3jUpJIqIPiqMAiZsa bPsyWiM/RX+f+ocH6KAk70rxEKIKjsRAP7Za2sQNmt+1zIhwx/kmKIrnFKvB6AZQid jFSrc3nQFkJn7UlAECBKAS0BD50Jz1+I1zZGy+/vzFiQoFXvYKlegZU8+J8yjmJe0Y MY/vIk5sg1NQcCTH2Fg6GMIWHI7/uO5us+0gGmHUqZyETzbBV0XKh5dfoRkdGb2CxU s/X0Pn4jBoNdLPvq+MMmMPksj36Y+Q4NpJp/bXyD65TjfmATEpCbkr+fNet5scb6em WmIYE/lstz+FQ== Message-ID: <2c1fa4d8-d236-4abd-8437-b21d9edad2e1@kernel.org> Date: Thu, 9 Apr 2026 20:35:36 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH mm-unstable v15 03/13] mm/khugepaged: generalize __collapse_huge_page_* for mTHP support To: Nico Pache Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org, aarcange@redhat.com, akpm@linux-foundation.org, anshuman.khandual@arm.com, apopple@nvidia.com, baohua@kernel.org, baolin.wang@linux.alibaba.com, byungchul@sk.com, catalin.marinas@arm.com, cl@gentwo.org, corbet@lwn.net, dave.hansen@linux.intel.com, dev.jain@arm.com, gourry@gourry.net, hannes@cmpxchg.org, hughd@google.com, jack@suse.cz, jackmanb@google.com, jannh@google.com, jglisse@google.com, joshua.hahnjy@gmail.com, kas@kernel.org, lance.yang@linux.dev, Liam.Howlett@oracle.com, lorenzo.stoakes@oracle.com, mathieu.desnoyers@efficios.com, matthew.brost@intel.com, mhiramat@kernel.org, mhocko@suse.com, peterx@redhat.com, pfalcato@suse.de, rakie.kim@sk.com, raquini@redhat.com, rdunlap@infradead.org, richard.weiyang@gmail.com, rientjes@google.com, rostedt@goodmis.org, rppt@kernel.org, ryan.roberts@arm.com, shivankg@amd.com, sunnanyong@huawei.com, surenb@google.com, thomas.hellstrom@linux.intel.com, tiwai@suse.de, usamaarif642@gmail.com, vbabka@suse.cz, vishal.moola@gmail.com, wangkefeng.wang@huawei.com, will@kernel.org, willy@infradead.org, yang@os.amperecomputing.com, ying.huang@linux.alibaba.com, ziy@nvidia.com, zokeefe@google.com References: <20260226031741.230674-1-npache@redhat.com> <20260226032347.232939-1-npache@redhat.com> <8a4568de-e0f9-471b-bc94-1062d4af3938@kernel.org> <2e3f7c8c-c443-4e71-ad60-36c5203de09b@kernel.org> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 374E040004 X-Stat-Signature: 7rqq7erp6c1nqhukfodqpb7ay7uiebmb X-Rspam-User: X-Rspamd-Server: rspam07 X-HE-Tag: 1775759757-681000 X-HE-Meta: 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 VzdRnlvo Uix/brL+ueCRFniJebb3AoyxN4+CN9LqnXORu0kVuQvvlImIaf5cY3IzosN58HW8iZ1iyya85q3vpcbB0HRfeIKYO0lUtpx5N+shxerDRUbi1yKzYWM3+ioDuBqm5i65FwZxQMcCGc4Q6F6ps2EDAx0nju0e2WE3jwdDEax9D/T3bHgCTpx5af3N/Tya2yUktbyb33/KIDQ+nS/mOt8c2Ws67QqJyhT2dHoFfO3m+LJJoK9XjOjBQhVfLMOuVfvHJBmI7IAW8UThJtnFYyQ6reKR58BGHV/OQcGX7Tdb2/t2boOZRxu5g/hmO3tlZqBbLV6xBnAIPts/53F/RxK/4z2pfRfAhlkxFzXtEtwM+/JsrkXsm/5+3eyH+1LjLNsUsXSWJorqQwmKKREXXFITso9C779SBe/1VOXZ7TKAOjjUw3YM= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 4/9/26 18:17, Nico Pache wrote: > On Thu, Apr 9, 2026 at 2:14 AM David Hildenbrand (Arm) wrote: >> >> On 4/8/26 21:48, Nico Pache wrote: >>> On Thu, Mar 12, 2026 at 2:56 PM David Hildenbrand (Arm) >>> wrote: >>> >>> Hey! Thanks for all your reviews here. >>> >>> For multiple reasons, here is the solution I developed: >>> >>> Add a patch before the generalize __collapse.. patch that reworks the >>> max_ptes* handling and introduces the helpers (no functional changes). >> >> I assume that's roughly the patch I shared below? If so, sounds good to me. > > Ok cool! Yeah very similar. I was just making sure you weren't dead > set on it being squashed into the other patch. Oh no, it should be a separate cleanup without functional changes! -- Cheers, David