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[70.52.229.124]) by smtp.gmail.com with ESMTPSA id m14-20020a05621402ae00b005ea34e69373sm2334001qvv.37.2023.04.11.12.03.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 Apr 2023 12:03:39 -0700 (PDT) Date: Tue, 11 Apr 2023 15:03:37 -0400 From: Peter Xu To: Mike Rapoport Cc: David Hildenbrand , Axel Rasmussen , Mike Kravetz , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrew Morton , Andrea Arcangeli , Leonardo Bras Soares Passos , Mike Rapoport , Nadav Amit Subject: Re: [PATCH 10/29] selftests/mm: Test UFFDIO_ZEROPAGE only when !hugetlb Message-ID: References: <20230330155707.3106228-1-peterx@redhat.com> <20230330160714.3106999-1-peterx@redhat.com> <20230331183726.GD12460@monkey> MIME-Version: 1.0 In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 0EFCD180018 X-Rspam-User: X-Stat-Signature: 6dksmkfpp5izmh7i9g7idww7gg3cs8pu X-HE-Tag: 1681239822-293731 X-HE-Meta: U2FsdGVkX1/fOhTDP4eSsdDk9ifhHxXc6OOq2Zl1h/qtFBVwnpF/5iyL48ZH4d2Fi+1r6yzVfSmUK3yPxQ6Mj+/E7mBetQcNBPxcLfH5Z7VExlfqJFpXJXcZr5PDcs+qVssmNljJbwa/Xg2k7pHEDsXckA0/aPZvLFkB+8BgEU0ysdd00C0Xt0mbrHFxp7Quu6UWLsNbXhzi9lFNpBjoewzGJwgYVeIILZ73z3hT3eQ299sHrncMjdFGHoTbTs5ucGq6uTIhd4zUcNJZszH+VSyGqCNBBcicPEAfbpIsMWC9IWu5MQ0Sq2UKGmASFvhV758Q0vggwEPXHG0kuZvX+1GqdJj/16whnTBsYTLVGokKnOu1TP7ll/IAQ1PSlgMtCdyYEMDVR3F3a9OnnfyIvHMhST4XccO7j+VE/Qo5rvNdUpFCiuEMlhr1GPvQmX05p9cDwfRAj5oQdMbT2eJYOd3fhKN8R93lH14JfRdyar5/5qFzWJ5rNxHtnPM8s0mMmG+IKpJ2RC97xAURSFRqbPXkE8iyRX2GeI0jYKkVe4BfpNKH91XHyQ9htyVX3LiRG39zmbjDsgsAp30EP1a8a+Mxh6ibYceoyxdwdVAv86Td+v/Ip6/z+CDRFtynk3V/W0fQZD4Mi1CLfVrdNCQu6LRvtJHVfb6lLmC3MzU2X2MHcNVCARZVh7rc4GLz3psuiXzaBdNxaeGMCLFBF8vDHCmnOGYBueIS3Yx88XTWeKwmwOQNYIu9EFQfi/CtlixTfZOFB0yvC78j+hqd06IHmBdsrisECmqQsUx0nF5lKZC9KOtIUAt3HRkaiEYC4UXJ2722AHZ4c1p66n36wA4uxr3w2U01namwC0J4S8S7hh8XzBCRGoMPgVxfRX3LEW7d5VfJqKpF+hLW/WMFv/8LRqkAPzRFzEiCjbhSgnL5aSwnr634kDnV3khJ2ODFNs7Z+X//TpBw73VVpQaAoXk NJsypvHH Xt/M6sTJkxnQnYUPhRVQUhh8jrSwFDPUEOFzjT4ab4uqcRpSzD2rliIs7Eaez50ImIl+M0gEweFqvBbvYoxuEXuia4tUleFikiyl4+amwhE4BeoC9eKYUY7Io1R7aVN5sKU6edR4kk+nAcTua4SFiz0Pc+xWQPtR69FB84v9YcsQFUwcJAJzpkFRfVGYmVWL7lDPDKRZVCBS/DxjBoAcAaUONrwexOc2uNqHoxPa4CQC9nHqXeHGVdMl53kQEcyVUHUGShyb5tOBK5xOLTfS213WOuS5rLWQKIAR2x/B1To+/QHu52VHCNgS2vGHMk4b5k6nfLxZbDrCW1bmsupC99LM05LBQg74nF/t0Kr86fjw53LT/WiM7v/tGx9wONMEEEUs4EWzqbLPv3TPwnSRNVPaqKwGPfa2AZy7Y8hZjqXVf9yQeOD6tpeB3lRHCWoiQM5vNYxVnTSXX26iXq4M+6tsYINvHPh9ibz0L7K2bg74zjpvYvree79Wu9p1gA3jd209OlCUeQSsJCzrFukEHvuMOHA8SezLfZVj5 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 Fri, Apr 07, 2023 at 12:42:29PM +0300, Mike Rapoport wrote: > > +/* > > + * Registers a range with MISSING mode only for zeropage test. Return true > > + * if UFFDIO_ZEROPAGE supported, false otherwise. Can't use uffd_register() > > + * because we want to detect .ioctls along the way. > > + */ > > +static bool > > +uffd_register_detect_zp(int uffd, void *addr, uint64_t len) > > Let's spell out 'zp' as zeropage, what do you say? Definitely can do. :) Thanks, -- Peter Xu