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[2003:cb:c747:ff00:9d85:4afb:a7df:6c45]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-43aba532c32sm21210325e9.11.2025.02.26.05.22.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 26 Feb 2025 05:22:58 -0800 (PST) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, David Hildenbrand , Andrew Morton , =?utf-8?b?SsOpcsO0bWUgR2xpc3Nl?= , Simona Vetter , Alistair Popple , Jason Gunthorpe Subject: [PATCH v2 0/5] mm: cleanups for device-exclusive entries (hmm) Date: Wed, 26 Feb 2025 14:22:52 +0100 Message-ID: <20250226132257.2826043-1-david@redhat.com> X-Mailer: git-send-email 2.48.1 MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: rawB_c-K3ratKRhT5qknuOCKHEzHZsVwWrTNMF2qEFo_1740576180 X-Mimecast-Originator: redhat.com X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: B8C2CC0008 X-Stat-Signature: maf6zc3nwmxtrpidrwu8n36ynixgaq7u X-Rspam-User: X-HE-Tag: 1740576182-148764 X-HE-Meta: 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 grzy7TI+ 86JHtOhlybeoLb/UwlYKppiIKgfJI4MWZhS/HrjeGN+/IhzuAxDCnae+DgboVzC2QB6GsfHNjQr9DlgEDk7ezU5paDpqSV6um3XARApJXobj1+2HkqL1rJRHicbWXZH0VJG0a+Ue9PMIU2+GQTM9/RcP5ajvNJBtCz4tDeIlpSgxAh7jE2vEDGS5Jd5roc/lXVZV/owvu8RHoa3fYS6e9P2vTkTt1SJ2SWmPyR8fQLwx2Mhg6rV/x6KAesCaK5G6CC1B1Flx2jY4qrnT+SY+aaLcbKJVP6VNaYpxOajDkR+K5Oj/y8zFzX1IbJrrF4nQPHW1uGsSJ75bv65wBPKAlWm9NexEaE7Ds8TZVo7g0WbCvkvwBPXrlGCyXiHicz1662pE9Jjuu1pWQoOGjg5Roies3cwpiIMYbbgHtcpDTHxIV664Imcqc+hrC+e4n4RSavpjRg7NI9spuhXYWRUJxoQYTiyRpJifZTQ1SevDRujpM9pfHLEIB/2XDiiMW6RgMSDNaubDWBpQqx+vc+9rGpn+CNpkbv5Mg1ehBhZXeIqoxT4Qoxw4BlBY8YhkJCSYz7b/7YK/UCrT1qYiucjANhy0xmW4A4YpsJN1o0zQGXh0QGhw= 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: Based on mm/mm-unstable, which already contains [1]. Some smaller device-exclusive cleanups I have lying around. Tested using the hmm selftests without surprises. Cc: Andrew Morton Cc: "Jérôme Glisse" Cc: Simona Vetter Cc: Alistair Popple Cc: Jason Gunthorpe v1 -> v2: * Rebased on top of [1] * "mm/memory: remove PageAnonExclusive sanity-check in restore_exclusive_pte()" -> Added * "mm/memory: document restore_exclusive_pte()" -> adjust/clarify/simplify documentation * "mm/mmu_notifier: use MMU_NOTIFY_CLEAR in remove_device_exclusive_entry()" -> Use MMU_NOTIFY_EXCLUSIVE only for a single purpose such that we always have the owner [1] https://lkml.kernel.org/r/20250210193801.781278-1-david@redhat.com David Hildenbrand (5): lib/test_hmm: make dmirror_atomic_map() consume a single page mm/memory: remove PageAnonExclusive sanity-check in restore_exclusive_pte() mm/memory: pass folio and pte to restore_exclusive_pte() mm/memory: document restore_exclusive_pte() mm/mmu_notifier: use MMU_NOTIFY_CLEAR in remove_device_exclusive_entry() include/linux/mmu_notifier.h | 8 ++--- lib/test_hmm.c | 32 ++++++------------- mm/memory.c | 60 ++++++++++++++++++++++++------------ 3 files changed, 55 insertions(+), 45 deletions(-) base-commit: 598d34afeca6bb10554846cf157a3ded8729516c