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Sun, 07 Jun 2026 17:12:56 -0700 (PDT) Received: from user ([104.28.154.195]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-490bc3cbfe4sm350959785e9.7.2026.06.07.17.12.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 07 Jun 2026 17:12:55 -0700 (PDT) From: yahia To: akpm@linux-foundation.org Cc: david@kernel.org, ziy@nvidia.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, yahia Subject: [PATCH] mm/migrate: Add native folio functions Date: Mon, 8 Jun 2026 03:12:51 +0300 Message-ID: <20260608001251.66847-1-yahia.a.abdrabou@gmail.com> X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Hello, I aim provides in this patch to provide native folio abstractions for page functions like movable_ops by wrapping folio->page structure in the native page function Signed-off-by: yahia --- include/linux/page-flags.h | 7 +++++++ mm/migrate.c | 5 +++++ 2 files changed, 12 insertions(+) diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 7223f6f4e2b4..6776cf821edd 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -1110,6 +1110,7 @@ bool is_free_buddy_page(const struct page *page); */ TESTPAGEFLAG(MovableOps, movable_ops, PF_NO_TAIL); SETPAGEFLAG(MovableOps, movable_ops, PF_NO_TAIL); +FOLIO_TEST_FLAG(MovableOpsIsolated, movable_ops_isolated) /* * A movable_ops page has this flag set while it is isolated for migration. * This flag primarily protects against concurrent migration attempts. @@ -1139,6 +1140,12 @@ static inline bool page_has_movable_ops(const struct= page *page) (PageOffline(page) || PageZsmalloc(page)); } =20 +static inline bool folio_has_movable_ops(struct folio *folio) +{ + return PageMovableOps(&folio->page) && + (PageOffline(&folio->page) || PageZsmalloc(&folio->page)); +} + static __always_inline int PageAnonExclusive(const struct page *page) { VM_BUG_ON_PGFLAGS(!PageAnon(page), page); diff --git a/mm/migrate.c b/mm/migrate.c index 8a64291ab5b4..817a8c0b84d9 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -96,6 +96,11 @@ static const struct movable_operations *page_movable_ops= (struct page *page) return NULL; } =20 +static const struct movable_operations *folio_movable_ops(struct folio *fo= lio) +{ + return page_movable_ops(&folio->page); +} + /** * isolate_movable_ops_page - isolate a movable_ops page for migration * @page: The page. --=20 2.54.0