From nobody Fri Dec 19 17:01:50 2025 Received: from out0-202.mail.aliyun.com (out0-202.mail.aliyun.com [140.205.0.202]) (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 8C9151482F5 for ; Mon, 26 Aug 2024 10:24:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=140.205.0.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724667848; cv=none; b=Jl+p8hAUCLim92CS4oO88bHvAtXf9V2vg9UY2FV5ZyAR77VeUaIYaOql/hpwOQIe6H0YqfE+nMmgbAqMow+bxXulg0OrtSlzN3HXst3hBDDt1/MaEUmVIa38N6QENEXdw+AZWVDt/iMDgRMkk7K+lxKf0hyXZxMMi2aNHqPFgpU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724667848; c=relaxed/simple; bh=jstzTDlVaFc14MBs6+5CAn8bhr/f8VdzKJOixZsHUjk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Q6zuvVvEv/oModDhnQAmX9K30BTkXQ4bulg/KHhkyNM0hFHIRbJJ0tVtsOMexQjDUusUBrplDryhIcLoyw+RReE4X22V7bGnQ9XgecOq3bosw8ASTOlG15DOKvbr/pVYOkGfbpbykaZsDjpB0r7sM3nm7Xs5U8ULyPX/kU19l5U= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=antgroup.com; spf=pass smtp.mailfrom=antgroup.com; dkim=pass (1024-bit key) header.d=antgroup.com header.i=@antgroup.com header.b=ZYxlTB4C; arc=none smtp.client-ip=140.205.0.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=antgroup.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=antgroup.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=antgroup.com header.i=@antgroup.com header.b="ZYxlTB4C" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=antgroup.com; s=default; t=1724667842; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=EEFoEIJSD/Xa9nH/fAD+A50RNInexen/VIJS9zUQYhU=; b=ZYxlTB4CXeHOtrAL+zPD9xQ+/BpaY6uUyArMFMOAyKFT98urytS89lXnYkYFlECj485xBTemO/kQcb9YUq7E94oma3QBL7+1nZ6lj7numce+E0q6SYP2qJBol4J08GqrA1yFLJwUZLJL0uWmQn3oqdYLjenA/A/DC+d7/7YHJoc= Received: from ubuntu..(mailfrom:tiwei.btw@antgroup.com fp:SMTPD_---.Z2YRscv_1724666907) by smtp.aliyun-inc.com; Mon, 26 Aug 2024 18:08:27 +0800 From: "Tiwei Bie" To: richard@nod.at, anton.ivanov@cambridgegreys.com, johannes@sipsolutions.net Cc: , , "Tiwei Bie" Subject: [PATCH v3 3/7] um: Remove unused fields from thread_struct Date: Mon, 26 Aug 2024 18:08:11 +0800 Message-Id: <20240826100815.904430-4-tiwei.btw@antgroup.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240826100815.904430-1-tiwei.btw@antgroup.com> References: <20240826100815.904430-1-tiwei.btw@antgroup.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" These fields are no longer used since the removal of tt mode. Signed-off-by: Tiwei Bie --- arch/um/include/asm/processor-generic.h | 20 +++++--------------- arch/um/kernel/process.c | 8 ++++---- arch/um/kernel/skas/process.c | 4 ++-- 3 files changed, 11 insertions(+), 21 deletions(-) diff --git a/arch/um/include/asm/processor-generic.h b/arch/um/include/asm/= processor-generic.h index 5a7c05275aa7..bce4595798da 100644 --- a/arch/um/include/asm/processor-generic.h +++ b/arch/um/include/asm/processor-generic.h @@ -28,20 +28,10 @@ struct thread_struct { struct arch_thread arch; jmp_buf switch_buf; struct { - int op; - union { - struct { - int pid; - } fork, exec; - struct { - int (*proc)(void *); - void *arg; - } thread; - struct { - void (*proc)(void *); - void *arg; - } cb; - } u; + struct { + int (*proc)(void *); + void *arg; + } thread; } request; }; =20 @@ -51,7 +41,7 @@ struct thread_struct { .fault_addr =3D NULL, \ .prev_sched =3D NULL, \ .arch =3D INIT_ARCH_THREAD, \ - .request =3D { 0 } \ + .request =3D { } \ } =20 /* diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index f36b63f53bab..be2856af6d4c 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -109,8 +109,8 @@ void new_thread_handler(void) schedule_tail(current->thread.prev_sched); current->thread.prev_sched =3D NULL; =20 - fn =3D current->thread.request.u.thread.proc; - arg =3D current->thread.request.u.thread.arg; + fn =3D current->thread.request.thread.proc; + arg =3D current->thread.request.thread.arg; =20 /* * callback returns only if the kernel thread execs a process @@ -158,8 +158,8 @@ int copy_thread(struct task_struct * p, const struct ke= rnel_clone_args *args) arch_copy_thread(¤t->thread.arch, &p->thread.arch); } else { get_safe_registers(p->thread.regs.regs.gp, p->thread.regs.regs.fp); - p->thread.request.u.thread.proc =3D args->fn; - p->thread.request.u.thread.arg =3D args->fn_arg; + p->thread.request.thread.proc =3D args->fn; + p->thread.request.thread.arg =3D args->fn_arg; handler =3D new_thread_handler; } =20 diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c index 5f9c1c5f36e2..68657988c8d1 100644 --- a/arch/um/kernel/skas/process.c +++ b/arch/um/kernel/skas/process.c @@ -39,8 +39,8 @@ int __init start_uml(void) =20 init_new_thread_signals(); =20 - init_task.thread.request.u.thread.proc =3D start_kernel_proc; - init_task.thread.request.u.thread.arg =3D NULL; + init_task.thread.request.thread.proc =3D start_kernel_proc; + init_task.thread.request.thread.arg =3D NULL; return start_idle_thread(task_stack_page(&init_task), &init_task.thread.switch_buf); } --=20 2.34.1