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b=O+EkSq1cerYI3SpW1BKN3OV+bECvq47aHuz2MTB9FCJJh3Zc0iyAcMhgnoQLf8GsG rg0WsCP6Euyo8wqA/81nTZZxdd8h7TjePa48hqZpHBc+161kj6UfS+k1+YUp+ykIbs fKpGjG1PHuo18A46Jib3VtwI4DaHai+6pSEKjDuI= Date: Thu, 17 Apr 2025 16:09:41 -0700 From: Andrew Morton To: Nico Pache Cc: linux-mm@kvack.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, corbet@lwn.net, rostedt@goodmis.org, mhiramat@kernel.org, mathieu.desnoyers@efficios.com, david@redhat.com, baohua@kernel.org, baolin.wang@linux.alibaba.com, ryan.roberts@arm.com, willy@infradead.org, peterx@redhat.com, shuah@kernel.org, ziy@nvidia.com, wangkefeng.wang@huawei.com, usamaarif642@gmail.com, sunnanyong@huawei.com, vishal.moola@gmail.com, thomas.hellstrom@linux.intel.com, yang@os.amperecomputing.com, kirill.shutemov@linux.intel.com, aarcange@redhat.com, raquini@redhat.com, dev.jain@arm.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 Subject: Re: [PATCH v4 3/4] khugepaged: add defer option to mTHP options Message-Id: <20250417160941.5e6c8063c990e1acf0c0ef2e@linux-foundation.org> In-Reply-To: <20250417001846.81480-4-npache@redhat.com> References: <20250417001846.81480-1-npache@redhat.com> <20250417001846.81480-4-npache@redhat.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: x9ti9um45fxbuh4h4wpd7zjufejm7ag1 X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 9937D80008 X-Rspam-User: X-HE-Tag: 1744931384-98261 X-HE-Meta: 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 765TlBck mdqZsH/9vfH/R4atmquutToT8UraX9UHOg43nJHwuiaDtv5CW0HYLSjLvB9MV8saCIUXMxxsR6XxGoS2yKT9rgUjXTpHsECmRC6DP7nQ+BpcvY1LTQEbAgw3TY5/1YC7gpke2gGxkzYt6EBSokvBVhSTZmGgP8r7fp1LIsmZW3qrA3EGjPfoXPhZO9oqTsIa13SvncyrZODdIn5xV5DhYBGSbPR/aqV6mM716gDNEBbjbMQtMlr5B4oI3QcPm8Rr0afs5wVaMTWMotBZL+VaBE2i30ZZ3IPOeSkJGZVh+fw/PtIkxV0KEmSnsfNREyKWZ/gMik/OoWkrnQtfTF+jDnUphAQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, 16 Apr 2025 18:18:45 -0600 Nico Pache wrote: > Now that we have defer to globally disable THPs at fault time, lets add > a defer setting to the mTHP options. This will allow khugepaged to > operate at that order, while avoiding it at PF time. khugepaged.c has changed somewhat in mm.git's mm-new branch. Can you pleae take a look?