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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,
	mark.rutland@arm.com, ben@decadent.org.uk, bjorn@kernel.org
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>,
	"Björn Töpel" <bjorn@rivosinc.com>
Subject: [PATCH -next V14 2/7] riscv: ptrace: Remove duplicate operation
Date: Thu, 12 Jan 2023 04:58:43 -0500	[thread overview]
Message-ID: <20230112095848.1464404-3-guoren@kernel.org> (raw)
In-Reply-To: <20230112095848.1464404-1-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_info.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>
Reviewed-by: Björn Töpel <bjorn@rivosinc.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


WARNING: multiple messages have this Message-ID (diff)
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,
	mark.rutland@arm.com, ben@decadent.org.uk, bjorn@kernel.org
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>,
	"Björn Töpel" <bjorn@rivosinc.com>
Subject: [PATCH -next V14 2/7] riscv: ptrace: Remove duplicate operation
Date: Thu, 12 Jan 2023 04:58:43 -0500	[thread overview]
Message-ID: <20230112095848.1464404-3-guoren@kernel.org> (raw)
In-Reply-To: <20230112095848.1464404-1-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_info.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>
Reviewed-by: Björn Töpel <bjorn@rivosinc.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


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http://lists.infradead.org/mailman/listinfo/linux-riscv

  parent reply	other threads:[~2023-01-12 10:01 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-12  9:58 [PATCH -next V14 0/7] riscv: Add GENERIC_ENTRY support guoren
2023-01-12  9:58 ` guoren
2023-01-12  9:58 ` [PATCH -next V14 1/7] compiler_types.h: Add __noinstr_section() for noinstr guoren
2023-01-12  9:58   ` guoren
2023-01-12  9:58 ` guoren [this message]
2023-01-12  9:58   ` [PATCH -next V14 2/7] riscv: ptrace: Remove duplicate operation guoren
2023-01-12  9:58 ` [PATCH -next V14 3/7] riscv: entry: Add noinstr to prevent instrumentation inserted guoren
2023-01-12  9:58   ` guoren
2023-01-12  9:58 ` [PATCH -next V14 4/7] riscv: entry: Convert to generic entry guoren
2023-01-12  9:58   ` guoren
2023-01-13  9:23   ` Conor Dooley
2023-01-13  9:23     ` Conor Dooley
2023-01-19  5:46     ` Guo Ren
2023-01-19  5:46       ` Guo Ren
2023-01-12  9:58 ` [PATCH -next V14 5/7] riscv: entry: Remove extra level wrappers of trace_hardirqs_{on,off} guoren
2023-01-12  9:58   ` guoren
2023-01-12  9:58 ` [PATCH -next V14 6/7] riscv: entry: Consolidate ret_from_kernel_thread into ret_from_fork guoren
2023-01-12  9:58   ` guoren
2023-01-12  9:58 ` [PATCH -next V14 7/7] riscv: entry: Consolidate general regs saving/restoring guoren
2023-01-12  9:58   ` guoren

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