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charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.60.2 (3.60.2-1.fc44) Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Tue, 2026-08-18 at 20:13 +0200, David Hildenbrand (Arm) wrote: > On 8/18/26 18:38, Rik van Riel wrote: > > On Sun, 2026-08-16 at 23:45 +0100, Kiryl Shutsemau wrote: > > > From: "Kiryl Shutsemau (Meta)" > > >=20 > > > Callers that want the folio behind a present PTE spell it out as > > > page_folio(pte_page(pte)). > > >=20 > > > Add pte_folio() as the folio companion to pte_page(), and convert > > > the > > > callers in fs/proc/task_mmu.c and mm/hugetlb.c. > > >=20 > > > Preparation for the anonymous collapse engine, which reads the > > > folio > > > behind a PTE in several places. > > >=20 > > > Assisted-by: Claude-Code:claude-opus-5 > > > Signed-off-by: Kiryl Shutsemau (Meta) > >=20 > > Oh nice, this could clean up some things in the > > get_user_pages code too, when we get around to > > tech debt there. >=20 > We really need the page in GUP code ... Ugh, indeed. COW can create "holes" in the middle of a large folio, so even __access_remote_vm() will continue to need pages. I guess we'll continue to look up both page and folio in that code, then :/ --=20 All Rights Reversed.