From: "Eric W. Biederman" <ebiederm@xmission.com>
To: linux-kernel@vger.kernel.org
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
Linux Containers <containers@lists.linux-foundation.org>,
Oleg Nesterov <oleg@redhat.com>,
linux-arch@vger.kernel.org
Subject: [REVIEW][PATCH 16/26] signal/arm: Remove tsk parameter from ptrace_break
Date: Wed, 22 May 2019 19:39:06 -0500 [thread overview]
Message-ID: <20190523003916.20726-17-ebiederm@xmission.com> (raw)
In-Reply-To: <20190523003916.20726-1-ebiederm@xmission.com>
The ptrace_break function is always called with tsk == current.
Make that obvious by removing the tsk parameter.
This also makes it clear that ptrace_break calls force_sig_fault
on the current task.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---
arch/arm/include/asm/traps.h | 2 +-
arch/arm/kernel/ptrace.c | 6 +++---
arch/arm/kernel/traps.c | 2 +-
3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/arm/include/asm/traps.h b/arch/arm/include/asm/traps.h
index a00288d75ee6..172b08ff3760 100644
--- a/arch/arm/include/asm/traps.h
+++ b/arch/arm/include/asm/traps.h
@@ -30,7 +30,7 @@ static inline int __in_irqentry_text(unsigned long ptr)
extern void __init early_trap_init(void *);
extern void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame);
-extern void ptrace_break(struct task_struct *tsk, struct pt_regs *regs);
+extern void ptrace_break(struct pt_regs *regs);
extern void *vectors_page;
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 6fa5b6387556..f9cbd08a9075 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -201,15 +201,15 @@ void ptrace_disable(struct task_struct *child)
/*
* Handle hitting a breakpoint.
*/
-void ptrace_break(struct task_struct *tsk, struct pt_regs *regs)
+void ptrace_break(struct pt_regs *regs)
{
force_sig_fault(SIGTRAP, TRAP_BRKPT,
- (void __user *)instruction_pointer(regs), tsk);
+ (void __user *)instruction_pointer(regs), current);
}
static int break_trap(struct pt_regs *regs, unsigned int instr)
{
- ptrace_break(current, regs);
+ ptrace_break(regs);
return 0;
}
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 33af097c454b..288989c7355d 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -606,7 +606,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
case NR(breakpoint): /* SWI BREAK_POINT */
regs->ARM_pc -= thumb_mode(regs) ? 2 : 4;
- ptrace_break(current, regs);
+ ptrace_break(regs);
return regs->ARM_r0;
/*
--
2.21.0
next prev parent reply other threads:[~2019-05-23 0:43 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-23 0:38 [REVIEW][PATCH 00/26] signal: Remove task argument from force_sig_info Eric W. Biederman
2019-05-23 0:38 ` [REVIEW][PATCH 01/26] signal: Correct namespace fixups of si_pid and si_uid Eric W. Biederman
[not found] ` <20190529131503.F2AC221871@mail.kernel.org>
2019-05-29 15:18 ` Eric W. Biederman
2019-05-23 0:38 ` [REVIEW][PATCH 02/26] signal/ptrace: Simplify and fix PTRACE_KILL Eric W. Biederman
2019-05-29 14:35 ` Eric W. Biederman
2019-05-23 0:38 ` [REVIEW][PATCH 03/26] signal/arm64: Use force_sig not force_sig_fault for SIGKILL Eric W. Biederman
2019-05-23 10:17 ` Will Deacon
2019-05-23 14:59 ` Eric W. Biederman
2019-05-23 16:11 ` [REVIEW][PATCHv2 " Eric W. Biederman
2019-05-23 16:15 ` Will Deacon
2019-05-23 20:59 ` Eric W. Biederman
2019-05-24 10:00 ` Will Deacon
2019-05-24 22:36 ` Eric W. Biederman
2019-05-29 15:12 ` Will Deacon
2019-05-29 15:34 ` Eric W. Biederman
2019-05-23 10:21 ` [REVIEW][PATCH " Dave Martin
2019-05-23 14:53 ` Eric W. Biederman
2019-05-23 16:12 ` Dave P Martin
2019-05-23 21:00 ` Eric W. Biederman
2019-05-23 0:38 ` [REVIEW][PATCH 04/26] signal/drbd: Use send_sig not force_sig Eric W. Biederman
2019-05-23 0:38 ` [REVIEW][PATCH 05/26] signal/bpfilter: Fix bpfilter_kernl to use " Eric W. Biederman
2019-05-23 0:38 ` [REVIEW][PATCH 06/26] signal/pid_namespace: Fix reboot_pid_ns " Eric W. Biederman
2019-05-23 0:38 ` [REVIEW][PATCH 07/26] signal/cifs: Fix cifs_put_tcp_session to call send_sig instead of force_sig Eric W. Biederman
2019-05-23 0:38 ` [REVIEW][PATCH 08/26] signal: Remove task parameter from force_sigsegv Eric W. Biederman
2019-05-23 0:38 ` [REVIEW][PATCH 09/26] signal: Remove task parameter from force_sig Eric W. Biederman
2019-05-23 0:39 ` [REVIEW][PATCH 10/26] signal: Remove task parameter from force_sig_mceerr Eric W. Biederman
2019-05-23 0:39 ` [REVIEW][PATCH 11/26] signal/x86: Remove task parameter from send_sigtrap Eric W. Biederman
2019-05-28 18:18 ` Thomas Gleixner
2019-05-23 0:39 ` [REVIEW][PATCH 12/26] signal/um: " Eric W. Biederman
2019-05-23 0:39 ` [REVIEW][PATCH 13/26] signal/sh: Remove tsk parameter from force_sig_info_fault Eric W. Biederman
2019-05-23 0:39 ` [REVIEW][PATCH 14/26] signal/riscv: Remove tsk parameter from do_trap Eric W. Biederman
2019-05-23 0:39 ` [REVIEW][PATCH 15/26] signal/nds32: Remove tsk parameter from send_sigtrap Eric W. Biederman
2019-05-23 0:39 ` Eric W. Biederman [this message]
2019-05-23 0:39 ` [REVIEW][PATCH 17/26] signal/arm: Remove tsk parameter from __do_user_fault Eric W. Biederman
2019-05-23 0:39 ` [REVIEW][PATCH 18/26] signal/unicore32: " Eric W. Biederman
2019-05-23 0:39 ` [REVIEW][PATCH 19/26] signal: Explicitly call force_sig_fault on current Eric W. Biederman
2019-05-23 0:39 ` [REVIEW][PATCH 20/26] signal: Use force_sig_fault_to_task for the two calls that don't deliver to current Eric W. Biederman
2019-05-23 0:39 ` [REVIEW][PATCH 21/26] signal: Remove the task parameter from force_sig_fault Eric W. Biederman
2019-05-23 0:39 ` [REVIEW][PATCH 22/26] signal: Properly set TRACE_SIGNAL_LOSE_INFO in __send_signal Eric W. Biederman
2019-05-23 0:39 ` [REVIEW][PATCH 23/26] signal: Move the computation of force into send_signal and correct it Eric W. Biederman
2019-05-23 0:39 ` [REVIEW][PATCH 24/26] signal: Generate the siginfo in force_sig Eric W. Biederman
2019-05-23 0:39 ` [REVIEW][PATCH 25/26] signal: Factor force_sig_info_to_task out of force_sig_info Eric W. Biederman
2019-05-23 0:39 ` [REVIEW][PATCH 26/26] signal: Remove the signal number and task parameters from force_sig_info Eric W. Biederman
2019-05-24 23:35 ` [REVIEW][PATCH 00/26] signal: Remove task argument " Eric W. Biederman
2019-05-29 15:37 ` Eric W. Biederman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190523003916.20726-17-ebiederm@xmission.com \
--to=ebiederm@xmission.com \
--cc=containers@lists.linux-foundation.org \
--cc=linux-arch@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=oleg@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).