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From: guoren@kernel.org
To: arnd@arndb.de, guoren@kernel.org, palmer@rivosinc.com,
	tglx@linutronix.de, peterz@infradead.org, luto@kernel.org,
	conor.dooley@microchip.com, heiko@sntech.de, jszhang@kernel.org,
	lazyparser@gmail.com, falcon@tinylab.org, chenhuacai@kernel.org,
	apatel@ventanamicro.com, atishp@atishpatra.org,
	palmer@dabbelt.com, paul.walmsley@sifive.com,
	mark.rutland@arm.com, zouyipeng@huawei.com,
	bigeasy@linutronix.de, David.Laight@aculab.com,
	chenzhongjin@huawei.com
Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-riscv@lists.infradead.org,
	Guo Ren <guoren@linux.alibaba.com>,
	Oleg Nesterov <oleg@redhat.com>
Subject: [PATCH V6 03/11] riscv: ptrace: Remove duplicate operation
Date: Sat,  1 Oct 2022 21:24:43 -0400	[thread overview]
Message-ID: <20221002012451.2351127-4-guoren@kernel.org> (raw)
In-Reply-To: <20221002012451.2351127-1-guoren@kernel.org>

From: Guo Ren <guoren@linux.alibaba.com>

The TIF_SYSCALL_TRACE is controlled by a common code, see
kernel/ptrace.c and include/linux/thread.h.

clear_task_syscall_work(child, SYSCALL_TRACE);

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
---
 arch/riscv/kernel/ptrace.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/riscv/kernel/ptrace.c b/arch/riscv/kernel/ptrace.c
index 2ae8280ae475..44f4b1ca315d 100644
--- a/arch/riscv/kernel/ptrace.c
+++ b/arch/riscv/kernel/ptrace.c
@@ -212,7 +212,6 @@ unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, unsigned int n)
 
 void ptrace_disable(struct task_struct *child)
 {
-	clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
 }
 
 long arch_ptrace(struct task_struct *child, long request,
-- 
2.36.1


  parent reply	other threads:[~2022-10-02  1:26 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-02  1:24 [PATCH V6 00/11] riscv: Add GENERIC_ENTRY support and related features guoren
2022-10-02  1:24 ` [PATCH V6 01/11] riscv: elf_kexec: Fixup compile warning guoren
2022-10-25  1:20   ` liaochang (A)
2022-10-25  2:36     ` Guo Ren
2022-10-02  1:24 ` [PATCH V6 02/11] riscv: compat_syscall_table: " guoren
2022-10-02  1:24 ` guoren [this message]
2022-10-02  1:24 ` [PATCH V6 04/11] compiler_types.h: Add __noinstr_section() for noinstr guoren
2022-10-03 11:38   ` Mark Rutland
2022-10-08  1:54     ` Guo Ren
2022-10-20  9:15       ` Mark Rutland
2022-10-20 12:29         ` Guo Ren
2022-10-24 11:56           ` Mark Rutland
2022-10-24 12:06             ` Peter Zijlstra
2022-10-24 12:14               ` Mark Rutland
2022-10-25  2:51                 ` Guo Ren
2022-10-25  9:47                   ` Mark Rutland
2022-10-02  1:24 ` [PATCH V6 05/11] riscv: traps: Add noinstr to prevent instrumentation inserted guoren
2022-10-03 11:40   ` Mark Rutland
2022-10-08  2:16     ` Guo Ren
2022-10-02  1:24 ` [PATCH V6 06/11] riscv: convert to generic entry guoren
2022-10-02  1:24 ` [PATCH V6 07/11] riscv: Support HAVE_IRQ_EXIT_ON_IRQ_STACK guoren
2022-10-02  1:24 ` [PATCH V6 08/11] riscv: Support HAVE_SOFTIRQ_ON_OWN_STACK guoren
2022-10-02  1:24 ` [PATCH V6 09/11] riscv: Add support for STACKLEAK gcc plugin guoren
2022-10-03 11:34   ` Mark Rutland
2022-10-08  0:16     ` Guo Ren
2022-10-08  3:26     ` Guo Ren
2022-10-08  3:44       ` Guo Ren
2022-10-02  1:24 ` [PATCH V6 10/11] riscv: Add config of thread stack size guoren
2022-10-02  1:24 ` [PATCH V6 11/11] riscv: remove extra level wrappers of trace_hardirqs_{on,off} guoren

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