From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 9913F211466 for ; Tue, 22 Sep 2026 07:29:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790062145; cv=none; b=qQFeEACGmrzO9M4MawOzLAI7H3sp9VWWh1c/DLvEpTR7B6rEUP2dGjNVMFnThJ9NRvxLXRs7NktJGJ053IFvecFlzCoGgETk0Kb3dis6v3uinHZf0VPVnhhrfJ6VDJLpSh6nkMqAUh6hYMuuOtCo6CsvXGqHH2ENOSR98FtRTCk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790062145; c=relaxed/simple; bh=XPp/PcjFWgVB5+Bw5ABOkUP0IsKJws4n3xxxAV9CNdE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: In-Reply-To:Content-Type:Content-Disposition; b=YN7yXZH46RKE5ew35cu3i3hWHwEhB9YI9cR+uoQl1m97QwqS19x8Hmn1AS4OUls9dKjQtzYm+IJtqoLkMLMV6fhI+OI+ck8D76ebylXqddmUTroE5AvdLnMwiMkTiWZTfgAZ05FyBBnfTQEjpdF/ul6l5t8VytdzjpQE/lruFKo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=I3s/AH7F; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="I3s/AH7F" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1790062141; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=1nV4OYi178lUeQW0YjjIgpTN9nSwgzP2y4G9yO7aqk0=; b=I3s/AH7FZF4OFVZL5DNi0A0QoodJQ6tLy1xdVRBBM0hCJ7T9AVT6FHQAQJD/4ow5no4UWy 1OoLU/yRZSeKAGF08HV+rh6EtLLEbHqQmDDMyS35OGLLIy42ehpOLdm42NcGZjlw1PH8oa fCLp8bQ7E90r9jLwtttpoDybtJ5TQ4g= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-387-JtQeQhCuOTOpX21smiv1SA-1; Tue, 22 Sep 2026 03:28:57 -0400 X-MC-Unique: JtQeQhCuOTOpX21smiv1SA-1 X-Mimecast-MFC-AGG-ID: JtQeQhCuOTOpX21smiv1SA_1790062136 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id E74F0180A94D; Tue, 22 Sep 2026 07:28:55 +0000 (UTC) Received: from fedora (headnet03.pony-001.prod.iad2.dc.redhat.com [10.2.32.114]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with SMTP id 0492D1956041; Tue, 22 Sep 2026 07:28:52 +0000 (UTC) Received: by fedora (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Tue, 22 Sep 2026 09:28:55 +0200 (CEST) Date: Tue, 22 Sep 2026 09:28:51 +0200 From: Oleg Nesterov To: Danish Khateeb Cc: Andreas Larsson , "David S. Miller" , Peter Zijlstra , Masami Hiramatsu , sparclinux@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] sparc64: uprobes: use kmap_local_page() in copy_to_page() Message-ID: References: <20260922023111.49951-1-danishkhateeb03@gmail.com> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In-Reply-To: <20260922023111.49951-1-danishkhateeb03@gmail.com> X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 X-Mimecast-MFC-PROC-ID: 98uykZom8e_SbFZfUpc1qU02GaU_9lKBo5X09VampRM_1790062136 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On 09/21, Danish Khateeb wrote: > > --- a/arch/sparc/kernel/uprobes.c > +++ b/arch/sparc/kernel/uprobes.c > @@ -33,10 +33,10 @@ unsigned long uprobe_get_swbp_addr(struct pt_regs *regs) > static void copy_to_page(struct page *page, unsigned long vaddr, > const void *src, int len) > { > - void *kaddr = kmap_atomic(page); > + void *kaddr = kmap_local_page(page); > > memcpy(kaddr + (vaddr & ~PAGE_MASK), src, len); > - kunmap_atomic(kaddr); > + kunmap_local(kaddr); > } Acked-by: Oleg Nesterov