From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D8829221568; Thu, 17 Apr 2025 23:09:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744931384; cv=none; b=REd1rNepViEIDGX80nGnsFRVg8B+92q9nsjIPAtplAqs2LTLf0k61SomXLYEqZ1CXYjzT9PD3qbupPHn4QeNAP4S8wUaHARlYZe2spsNKwHBTIdj36JEelxIvavcAf0UBRVXNknNVC5+fkDtIWj9iPJLyyljcjVWXQDIL+18uZM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744931384; c=relaxed/simple; bh=1wudyAEeo9ZxUBCPzH6bp44SfvfV/MxkFpdCzNjXyRM=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=GrBMvAbACi2y6qGb34yHDzk3B/xUMMpaGVHfgsBJv1MrMMj+SbjGaswIPRYh4hQ5sSn7Gp2olmiM9J/zYFJQGkaWe+/UIzzyGvQLH2an0RLVf36G+JcE1fn3gX1KGU/XpCBmBZWGyW+YGPoKxThVS0mLq6LfnAFqpJEHXEtZu74= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=O+EkSq1c; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="O+EkSq1c" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B1F4AC4CEE4; Thu, 17 Apr 2025 23:09:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1744931383; bh=1wudyAEeo9ZxUBCPzH6bp44SfvfV/MxkFpdCzNjXyRM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; 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) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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?