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[209.85.220.65]) by mx.google.com with SMTPS id y10sor9891587ote.136.2019.06.26.09.14.43 for (Google Transport Security); Wed, 26 Jun 2019 09:14:43 -0700 (PDT) Received-SPF: pass (google.com: domain of dan.j.williams@intel.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@intel-com.20150623.gappssmtp.com header.s=20150623 header.b=l+5kJ6to; spf=pass (google.com: domain of dan.j.williams@intel.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=dan.j.williams@intel.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=XK0CaHJOVcsS/u0euQkBQYUAFEHomal+V6KfwmFuG+U=; b=l+5kJ6tokPJ98bH2NME9M/AQ27NvFMKuOsXn1/Bb6bOBzelrSngvtDZJXmVwZKzpKi qjSD/BPNZzWpZiBQzbopXZ4t+Owe9yGEnJZxcLTPAlrrPvnYO2K7gCbSAaaiJHFcBp4k rxUq8p1DHnLMI0fRDu2WCtVRP/OHmPtRFurCHJX0OhgjoUZQUqGECtXD/hiUSR9PPelH MnkCXYqaYmm4WKtHJZYWuY7L6Kj9qhni0KNGsJokbTzfJurnEEHErfJ69HKEvmfEeo+E N7IwPwAkdbg4plX6eEOz52RHtcXnuvonc5/m143W02YNIvHsz5xJAtpZFJ8Hrcf91kdm NShw== X-Google-Smtp-Source: APXvYqxlK4A4nPLhfNez6panLCe0oG2uZ68rpjoeO+K9OBDO45YdiJCTPi2DLYKpN0RI7gOpjzzUX8DJkFMKIZ4j7YA= X-Received: by 2002:a9d:7a9a:: with SMTP id l26mr1155884otn.71.1561565683159; Wed, 26 Jun 2019 09:14:43 -0700 (PDT) MIME-Version: 1.0 References: <20190613094326.24093-1-hch@lst.de> <20190613094326.24093-6-hch@lst.de> <20190620191733.GH12083@dhcp22.suse.cz> <20190625072317.GC30350@lst.de> <20190625150053.GJ11400@dhcp22.suse.cz> <20190625190038.GK11400@dhcp22.suse.cz> <20190626054645.GB17798@dhcp22.suse.cz> In-Reply-To: <20190626054645.GB17798@dhcp22.suse.cz> From: Dan Williams Date: Wed, 26 Jun 2019 09:14:32 -0700 Message-ID: Subject: Re: [PATCH 05/22] mm: export alloc_pages_vma To: Michal Hocko Cc: Christoph Hellwig , =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= , Jason Gunthorpe , Ben Skeggs , Linux MM , nouveau@lists.freedesktop.org, Maling list - DRI developers , linux-nvdimm , linux-pci@vger.kernel.org, Linux Kernel Mailing List Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable 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: On Tue, Jun 25, 2019 at 10:46 PM Michal Hocko wrote: > > On Tue 25-06-19 12:52:18, Dan Williams wrote: > [...] > > > Documentation/process/stable-api-nonsense.rst > > > > That document has failed to preclude symbol export fights in the past > > and there is a reasonable argument to try not to retract functionality > > that had been previously exported regardless of that document. > > Can you point me to any specific example where this would be the case > for the core kernel symbols please? The most recent example that comes to mind was the thrash around __kernel_fpu_{begin,end} [1]. I referenced that when debating _GPL symbol policy with J=C3=A9r=C3=B4me [2]. [1]: https://lore.kernel.org/lkml/20190522100959.GA15390@kroah.com/ [2]: https://lore.kernel.org/lkml/CAPcyv4gb+r=3D=3DriKFXkVZ7gGdnKe62yBmZ7xO= a4uBBByhnK9Tzg@mail.gmail.com/