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Fri, 07 Nov 2025 19:01:38 -0800 (PST) Date: Sat, 8 Nov 2025 03:01:37 +0000 From: Wei Yang To: Nico Pache Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-mm@kvack.org, linux-doc@vger.kernel.org, david@redhat.com, ziy@nvidia.com, baolin.wang@linux.alibaba.com, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, ryan.roberts@arm.com, dev.jain@arm.com, corbet@lwn.net, rostedt@goodmis.org, mhiramat@kernel.org, mathieu.desnoyers@efficios.com, akpm@linux-foundation.org, baohua@kernel.org, willy@infradead.org, peterx@redhat.com, wangkefeng.wang@huawei.com, usamaarif642@gmail.com, sunnanyong@huawei.com, vishal.moola@gmail.com, thomas.hellstrom@linux.intel.com, yang@os.amperecomputing.com, kas@kernel.org, aarcange@redhat.com, raquini@redhat.com, anshuman.khandual@arm.com, catalin.marinas@arm.com, tiwai@suse.de, will@kernel.org, dave.hansen@linux.intel.com, jack@suse.cz, cl@gentwo.org, jglisse@google.com, surenb@google.com, zokeefe@google.com, hannes@cmpxchg.org, rientjes@google.com, mhocko@suse.com, rdunlap@infradead.org, hughd@google.com, richard.weiyang@gmail.com, lance.yang@linux.dev, vbabka@suse.cz, rppt@kernel.org, jannh@google.com, pfalcato@suse.de Subject: Re: [PATCH v12 mm-new 05/15] khugepaged: generalize __collapse_huge_page_* for mTHP support Message-ID: <20251108030137.mud7xxwg5fxdgm6k@master> Reply-To: Wei Yang References: <20251022183717.70829-1-npache@redhat.com> <20251022183717.70829-6-npache@redhat.com> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251022183717.70829-6-npache@redhat.com> User-Agent: NeoMutt/20170113 (1.7.2) On Wed, Oct 22, 2025 at 12:37:07PM -0600, Nico Pache wrote: >generalize the order of the __collapse_huge_page_* functions >to support future mTHP collapse. > >mTHP collapse will not honor the khugepaged_max_ptes_shared or >khugepaged_max_ptes_swap parameters, and will fail if it encounters a >shared or swapped entry. > >No functional changes in this patch. > >Reviewed-by: Baolin Wang >Acked-by: David Hildenbrand >Co-developed-by: Dev Jain >Signed-off-by: Dev Jain >Signed-off-by: Nico Pache Reviewed-by: Wei Yang -- Wei Yang Help you, Help me