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[174.91.135.175]) by smtp.gmail.com with ESMTPSA id a14sm10084476qtw.80.2021.03.22.17.54.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Mar 2021 17:54:12 -0700 (PDT) Date: Mon, 22 Mar 2021 20:54:10 -0400 From: Peter Xu To: linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: "Kirill A . Shutemov" , Jerome Glisse , Mike Kravetz , Matthew Wilcox , Andrew Morton , Axel Rasmussen , Hugh Dickins , Nadav Amit , Andrea Arcangeli , Mike Rapoport , Jason Gunthorpe Subject: Re: [PATCH 00/23] userfaultfd-wp: Support shmem and hugetlbfs Message-ID: <20210323005410.GA6486@xz-x1> References: <20210323004912.35132-1-peterx@redhat.com> MIME-Version: 1.0 In-Reply-To: <20210323004912.35132-1-peterx@redhat.com> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=peterx@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 83509E0001AF X-Stat-Signature: hgcemqtz6s3bx4h4oqqdjwnr3bys8ush Received-SPF: none (redhat.com>: No applicable sender policy available) receiver=imf30; identity=mailfrom; envelope-from=""; helo=us-smtp-delivery-124.mimecast.com; client-ip=63.128.21.124 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1616460854-124084 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 Mon, Mar 22, 2021 at 08:48:49PM -0400, Peter Xu wrote: > This patchset is based on tag v5.12-rc3-mmots-2021-03-17-22-26. To run the > selftest, need to apply the two patches to fix minor mode page leak: > > https://lore.kernel.org/lkml/20210322175132.36659-1-peterx@redhat.com/ > https://lore.kernel.org/lkml/20210322204836.1650221-1-axelrasmussen@google.com/ > > Since I didn't get any NACK in the previous RFC series for months, I decided to > remove the RFC tag starting from this version, so this is v1 of uffd-wp support > on shmem & hugetlb. Attaching changelog, rfc->v1: - fix up syzbot reported issue - add a new feature bit UFFD_FEATURE_WP_SHMEM_HUGETLBFS exported in uapi, so that apps can detect the new kernel capability. - check for all pte_to_swp_entry callers too (hmm, etc.) [JasonG] - dropped the first few patches that are not directly related to this series; I will post them separately as standalone series Add Cc too (I'll remember to send the series with full cc list next time..). Thanks, -- Peter Xu