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Mon, 20 Apr 2026 12:13:52 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.87.85.9]) by smtpav04.fra02v.mail.ibm.com (Postfix) with SMTP; Mon, 20 Apr 2026 12:13:52 +0000 (GMT) Received: by tuxmaker.boeblingen.de.ibm.com (Postfix, from userid 55669) id CF88CE0749; Mon, 20 Apr 2026 14:13:52 +0200 (CEST) From: Alexander Gordeev To: Kevin Brodsky , David Hildenbrand , Ryan Roberts , Andrew Morton Cc: linux-s390@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Gerald Schaefer , Heiko Carstens , Vasily Gorbik Subject: [RFC PATCH 0/2] mm/gup: pgtable entry acccessors cleanup Date: Mon, 20 Apr 2026 14:13:50 +0200 Message-ID: X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 3GfFdJNwNXlttYprI9xIIKLTBOuuPMXI X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDIwMDExNSBTYWx0ZWRfX3+75nW9ikULN mk6WTmIRZda1SiewI32TVpWu8iMVv1xi9G+PVp3buQufIIvXGRvHANLKVyw1kIcUqFpsMcevp5t 5keATs1YycwiEytJOmN8QE86QXE0/HavXDcewGxgcf/1J1Ixxd81jmcbj2vNQpqfOjfgpHHVL/r jNkkgMY7x+G80KXE2g8CCNw3zGvans2JJfYllW/g9oSxoQ2JgBr/WYnw7ph/nD36dbMwBwjlzZM ba2jhjD5MqZbuhlMzjiRHledWj/E/UzWpRTxVp8UvNLn7ltyOAsNFvMPDY/vzt6lsUYXtbfFv3H sEz96nCSGikjzvYDYm3Wq3lMGH1TrvXAC5mJ4sFxGtG9jkdJowIqeha4W9V/RVh6S7fKQ/6MP4k vNi0IGoc8oc7pSqJHDgwYd44+CqNDWyaO1+SJXhGFThfJsUDlLua0cpBEBoOx2AmQj7x4XVk1Ih +/Q2f/3IEg71+sgLu7Q== X-Authority-Analysis: v=2.4 cv=XLYAjwhE c=1 sm=1 tr=0 ts=69e61885 cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=aTGr7PAGRYz1C1UlONgA:9 a=zZCYzV9kfG8A:10 X-Proofpoint-GUID: 3GfFdJNwNXlttYprI9xIIKLTBOuuPMXI X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-20_02,2026-04-17_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 bulkscore=0 impostorscore=0 spamscore=0 adultscore=0 priorityscore=1501 phishscore=0 lowpriorityscore=0 malwarescore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604070000 definitions=main-2604200115 Hi All, This rework is necessary to allow a KASAN PTE access sanitizer (so far s390-only) that hits on direct PTE entries dereferences, like pte =3D *ptep as opposed to pte =3D ptep_get(ptep). I am not posting the sanitizer itself (yet), since it does not fly without the suggested patches, but I am not sure whether these changes make sense for the generic case. Thus, sending it as a RFC. Thanks! Alexander Gordeev (2): mm/gup: add missing pXdp_get() conversions mm/gup: add lockless access semantics on entries validation mm/gup.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --=20 2.51.0