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([210.73.43.101]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7ff7e197983sm42704939b3a.33.2026.01.03.00.48.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 03 Jan 2026 00:48:12 -0800 (PST) From: Keke Ming To: mhiramat@kernel.org, oleg@redhat.com, peterz@infradead.org Cc: linux@armlinux.org.uk, catalin.marinas@arm.com, will@kernel.org, tsbogend@alpha.franken.de, pjw@kernel.org, palmer@dabbelt.com, aou@eecs.berkeley.edu, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-riscv@lists.infradead.org, Keke Ming Subject: [PATCH 5/5] uprobes: use kmap_local_page() for temporary page mappings Date: Sat, 3 Jan 2026 16:42:43 +0800 Message-ID: <20260103084243.195125-6-ming.jvle@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260103084243.195125-1-ming.jvle@gmail.com> References: <20260103084243.195125-1-ming.jvle@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" Replace deprecated kmap_atomic() with kmap_local_page(). Signed-off-by: Keke Ming --- kernel/events/uprobes.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index d546d32390a8..a7d7d83ca1d7 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -179,16 +179,16 @@ bool __weak is_trap_insn(uprobe_opcode_t *insn) =20 void uprobe_copy_from_page(struct page *page, unsigned long vaddr, void *d= st, int len) { - void *kaddr =3D kmap_atomic(page); + void *kaddr =3D kmap_local_page(page); memcpy(dst, kaddr + (vaddr & ~PAGE_MASK), len); - kunmap_atomic(kaddr); + kunmap_local(kaddr); } =20 static void copy_to_page(struct page *page, unsigned long vaddr, const voi= d *src, int len) { - void *kaddr =3D kmap_atomic(page); + void *kaddr =3D kmap_local_page(page); memcpy(kaddr + (vaddr & ~PAGE_MASK), src, len); - kunmap_atomic(kaddr); + kunmap_local(kaddr); } =20 static int verify_opcode(struct page *page, unsigned long vaddr, uprobe_op= code_t *insn, @@ -323,7 +323,7 @@ __update_ref_ctr(struct mm_struct *mm, unsigned long va= ddr, short d) return ret =3D=3D 0 ? -EBUSY : ret; } =20 - kaddr =3D kmap_atomic(page); + kaddr =3D kmap_local_page(page); ptr =3D kaddr + (vaddr & ~PAGE_MASK); =20 if (unlikely(*ptr + d < 0)) { @@ -336,7 +336,7 @@ __update_ref_ctr(struct mm_struct *mm, unsigned long va= ddr, short d) *ptr +=3D d; ret =3D 0; out: - kunmap_atomic(kaddr); + kunmap_local(kaddr); put_page(page); return ret; } --=20 2.43.0