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[96.255.20.138]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-5033746eec5sm60844171cf.9.2026.01.30.09.34.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 30 Jan 2026 09:34:35 -0800 (PST) Date: Fri, 30 Jan 2026 12:34:33 -0500 From: Gregory Price To: linux-mm@kvack.org Cc: linux-cxl@vger.kernel.org, nvdimm@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, kernel-team@meta.com, dave@stgolabs.net, jonathan.cameron@huawei.com, dave.jiang@intel.com, alison.schofield@intel.com, vishal.l.verma@intel.com, ira.weiny@intel.com, dan.j.williams@intel.com, willy@infradead.org, jack@suse.cz, terry.bowman@amd.com, john@jagalactic.com Subject: Re: [PATCH 0/9] cxl: explicit DAX driver selection and hotplug Message-ID: References: <20260129210442.3951412-1-gourry@gourry.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260129210442.3951412-1-gourry@gourry.net> X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 77C8540005 X-Stat-Signature: b31t5kw5zgmojffumo1c1xy1memoouti X-Rspam-User: X-HE-Tag: 1769794478-759164 X-HE-Meta: U2FsdGVkX1/JOuEd6y/rMVffwyts6jWbJG6OhDwjfdZL+43JhXdZh61NITsxSxQPnxSMpm1iD2826OBb5piK5CnsWcPn7vruThy4DCSot/zi4onavmSMxdGL1C4dxX7YpzxGAnXx5NU8Xr9t7FDhzNmNBHo6+qf6j6W3Sp0o1em70eKYAA3Xw+Od8YQjHMoNEkKaMUSTSUImGDFDEgvGRwQtzuVDBWjtgDme0zbtC8Cxou/D/d+X5seAoD1gMG3uscrjYonAlYSiLgn6nHO81j7q6AMSM9oPQs5ZZ38oHozkoXM0V/Bmgl7C5uluiZ2a251mFcJksDP/DDucYqyOAGQJXo+Ae1It4fLbIuvhtLgDnh2+MkARnC/0jRbPRY3JQAxaj28KPDdMY9Cyo5ESOcVZyGvc99ZllK5PNNvbVaQB+Z7tcrmikpgyk9DgGEHrrWcSdCckiR9oG/yctHq1aS4pLU1/mDDM1BEsDgfMqXzF71YJ8dG0gD9Sd2B0d3YoKiGhuVCOU3j+L/PQzSiCK8d/B19039sy76fO6kzhG+Fc6txEMHKnln0Be3SAdAMTX6B1GbEnfalDSri7dl0eJZ5lArvRZRLTWT2PyxJmnlw2JlOzSHtxMCstbntSl/PMgICQ2lxLa8i0B+OCPQX6DjkhQXnBR9HejhjVINQ0HCuYjnHUGsFA5XYle+PiX/NeaU7aY4YuaeShuRe4Sqa3Nt4W5XSmbwh/V0eMhB9Wk6fQn/GTm0n3rCv7aBORYSc3Re5SNSHgEHIzb1Fwtwc0++7LaBkyVoLRJy1MrvWFCpRHWSI2c38SBIkPwPhV5guW5b5F2nsHSrrS+JnAtbwsB/bjOU5O34WFSCsqhCR4fFgyL2CRgBzevUzuOfKA59qj8ulonvaA+kbRx2OD8Y+BUTkxhJMioHHBHPrG1FwjNiok+vRkYrkwgdAkfQFxClGKf+9HPHlY0JR2li+YwR5 CjkaTuqK +I++8Dneodq2nUv4Bl1IuHKSP0eHIjYzRE8iTBPRafs1zhhH5GBjb/vZljGA9Brcfv6/IZt1h8E1rhM7sjI07INrWX7r8DPjiH1FN+zX38NBAJ/rc2zpdcFwz3WhVJJgrUW70fL/nhyt2wW/w0CqKJWlbIPaDdSDoFGdRbHSRU2bP3/FXNypkPEsZb66VszyBnwixpzfD8LF0t3n7oSaoKej/7ymlbgTIATdxvz0W/VWZBbLglg/mKGTdkzz6OTLD1Yd3xoVkcG5wdlQcOt3h2nsiZDhZNIZZpJfi3pbTD1DstHHvCbuQKaZJxSKlYNj+xzslkAHEQDG5auA= 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 Thu, Jan 29, 2026 at 04:04:33PM -0500, Gregory Price wrote: > Currently, CXL regions that create DAX devices have no mechanism to > control select the hotplug online policy for kmem regions at region > creation time. Users must either rely on a build-time default or > manually configure each memory block after hotplug occurs. > Looks like build regression on configs without hotplug MMOP_ defines and mhp_get_default_online_type() undefined Will let this version sit for a bit before spinning a v2 ~Gregory