From nobody Mon Feb 9 03:13:14 2026 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0715333BBDF; Mon, 12 Jan 2026 08:02:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768204978; cv=none; b=DF0uZHFQUyGHypZUGVowMn0pSuY/76p1m/5iy8McOlK0bNXvEPR6L1FxoXMa0Pyn7Q3tvLNOutpWQxWuW62WaBZmE6YPqzh6CL14lMvOE7QcwL1Sr57Io3ZcuT4MzvKBXVsAUgz9ubhtCgh2448GA3yA1ApMn/jXbrElKZ/hPN8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768204978; c=relaxed/simple; bh=VkF3FlXhotZ3/frgcl0rPhKRnhIFY44kDt6+2iN1pQ4=; h=Date:From:To:Subject:Cc:In-Reply-To:References:MIME-Version: Message-ID:Content-Type; b=d51PDr+B2/lawp7nUuAhGGGjpeAsntwQUoudgOHOcrTXr0OrZHTAZOmcksRLV+92bmMrBh3rYtUxBRcgeQZDPBDJIleZjC0RcuPbvG0JNerbnx/U6Aju2FIA1X6CgueYa2s24RVUTzsjUCm85Hr06+Ei7IH8AOvhpMmseaop2RE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=jQN6oEcs; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=0sf7PuS6; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="jQN6oEcs"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="0sf7PuS6" Date: Mon, 12 Jan 2026 08:02:49 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1768204975; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ybVFZlFnZLyaWpIES92Zx+dsszdKQ0kO4rCdPMyMb7U=; b=jQN6oEcsrg/0E7R1b19M8F/2AQyXFwpIHMcBeHW1QcRt8ThrWng+TtpZe9r2ekqurkyq4L fCBN38cBchHh93U6+ncBzzslnqWdQAenjXNGRjoWEQyfWPny3ssLZT/y3dnDJZdw5E316W PdgafiJobsLStRVkZzv2TO+2riCNdB6JOnYpj8rc1ivFm+xIlhRR58GsVmSUJLKNZL1604 EFLBzMAkG6ztNWX6Y87WuM/MGfDUHW3a/YKGp8LhqWDiORBn1DqJhVDwsfVwkiQzBBSGMh JwFcbzqMK9BXg8pAFcDrPCJZDJcmCHZlP7VCzDPBeFtA4onhJa+SJapyA1aHEw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1768204975; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ybVFZlFnZLyaWpIES92Zx+dsszdKQ0kO4rCdPMyMb7U=; b=0sf7PuS6QpG1qK73lSx/kX8cQlLvdhQy0Y8eCWLRRNraTaWB20URxCSd663ZzSL50AKo1n 6FCDk9K/RPyXEmAg== From: "tip-bot2 for Keke Ming" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: perf/core] uprobes: use kmap_local_page() for temporary page mappings Cc: Keke Ming , "Peter Zijlstra (Intel)" , Oleg Nesterov , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20260103084243.195125-6-ming.jvle@gmail.com> References: <20260103084243.195125-6-ming.jvle@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <176820496954.510.6355066077664200722.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Precedence: bulk Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable The following commit has been merged into the perf/core branch of tip: Commit-ID: a491c02c2770c9c2d02b96fad7e3a176d77bb737 Gitweb: https://git.kernel.org/tip/a491c02c2770c9c2d02b96fad7e3a176d= 77bb737 Author: Keke Ming AuthorDate: Sat, 03 Jan 2026 16:42:43 +08:00 Committer: Peter Zijlstra CommitterDate: Tue, 06 Jan 2026 16:34:28 +01:00 uprobes: use kmap_local_page() for temporary page mappings Replace deprecated kmap_atomic() with kmap_local_page(). Signed-off-by: Keke Ming Signed-off-by: Peter Zijlstra (Intel) Acked-by: Oleg Nesterov Link: https://patch.msgid.link/20260103084243.195125-6-ming.jvle@gmail.com --- 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 d546d32..a7d7d83 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; }