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[67.164.59.41]) by smtp.googlemail.com with ESMTPSA id 98e67ed59e1d1-313b2137b77sm161367a91.34.2025.06.10.17.13.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Jun 2025 17:13:25 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Geert Uytterhoeven Cc: linux-m68k@lists.linux-m68k.org, linux-kernel@vger.kernel.org, Andrew Morton , "Vishal Moola (Oracle)" Subject: [PATCH 2/4] m68k: mm: Convert free_pointer_table() to use ptdescs Date: Tue, 10 Jun 2025 17:12:53 -0700 Message-ID: <20250611001255.527952-3-vishal.moola@gmail.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250611001255.527952-1-vishal.moola@gmail.com> References: <20250611001255.527952-1-vishal.moola@gmail.com> 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" Motorola uses free_pointer_table() for page tables, so it should be using struct ptdesc, not struct page. This helps us prepare to allocate ptdescs as their own memory descriptor, and prepares to remove a user of page->lru. Signed-off-by: Vishal Moola (Oracle) Reviewed-by: Geert Uytterhoeven --- arch/m68k/mm/motorola.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c index 35c3571ffbef..6a459710b2a7 100644 --- a/arch/m68k/mm/motorola.c +++ b/arch/m68k/mm/motorola.c @@ -200,21 +200,20 @@ int free_pointer_table(void *table, int type) { ptable_desc *dp; unsigned long ptable =3D (unsigned long)table; - unsigned long page =3D ptable & PAGE_MASK; - unsigned int mask =3D 1U << ((ptable - page)/ptable_size(type)); + unsigned long pt_addr =3D ptable & PAGE_MASK; + unsigned int mask =3D 1U << ((ptable - pt_addr)/ptable_size(type)); =20 - dp =3D PD_PTABLE(page); + dp =3D PD_PTABLE(pt_addr); if (PD_MARKBITS (dp) & mask) panic ("table already free!"); =20 PD_MARKBITS (dp) |=3D mask; =20 if (PD_MARKBITS(dp) =3D=3D ptable_mask(type)) { - /* all tables in page are free, free page */ + /* all tables in ptdesc are free, free ptdesc */ list_del(dp); - mmu_page_dtor((void *)page); - pagetable_dtor(virt_to_ptdesc((void *)page)); - free_page (page); + mmu_page_dtor((void *)pt_addr); + pagetable_dtor_free(virt_to_ptdesc((void *)pt_addr)); return 1; } else if (ptable_list[type].next !=3D dp) { /* --=20 2.49.0