From: Peter Zijlstra <peterz@infradead.org>
To: linux-kernel@vger.kernel.org, x86@kernel.org, peterz@infradead.org
Cc: Nadav Amit <nadav.amit@gmail.com>,
Andy Lutomirski <luto@kernel.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
Song Liu <songliubraving@fb.com>,
Masami Hiramatsu <mhiramat@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Daniel Bristot de Oliveira <bristot@redhat.com>
Subject: [PATCH 0/3] Rewrite x86/ftrace to use text_poke()
Date: Tue, 27 Aug 2019 20:06:22 +0200 [thread overview]
Message-ID: <20190827180622.159326993@infradead.org> (raw)
Ftrace was one of the last W^X violators; these patches move it over to the
generic text_poke() interface and thereby get rid of this oddity.
The first patch has been posted before and was/is part of my (in-progress)
static_call and jump_label/jmp8 patch series; but is equally needed here.
The second patch cleans up the text_poke batching code, and the third converts
ftrace.
---
arch/x86/include/asm/ftrace.h | 2 -
arch/x86/include/asm/text-patching.h | 28 +-
arch/x86/kernel/alternative.c | 156 +++++++--
arch/x86/kernel/ftrace.c | 620 +++++------------------------------
arch/x86/kernel/jump_label.c | 83 ++---
arch/x86/kernel/kprobes/opt.c | 11 +-
arch/x86/kernel/traps.c | 9 -
7 files changed, 261 insertions(+), 648 deletions(-)
next reply other threads:[~2019-08-27 18:13 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-27 18:06 Peter Zijlstra [this message]
2019-08-27 18:06 ` [PATCH 1/3] x86/alternatives: Teach text_poke_bp() to emulate instructions Peter Zijlstra
2019-10-03 5:00 ` Masami Hiramatsu
2019-10-03 8:27 ` Peter Zijlstra
2019-10-03 11:01 ` Peter Zijlstra
2019-10-03 12:32 ` Peter Zijlstra
2019-10-04 13:45 ` Masami Hiramatsu
2019-10-07 8:05 ` Peter Zijlstra
2019-10-09 13:07 ` x86/kprobes bug? (was: [PATCH 1/3] x86/alternatives: Teach text_poke_bp() to emulate instructions) Peter Zijlstra
2019-10-09 13:26 ` Peter Zijlstra
2019-10-09 13:28 ` Peter Zijlstra
2019-10-09 14:26 ` Mathieu Desnoyers
2019-10-17 19:59 ` Peter Zijlstra
2019-10-03 13:05 ` [PATCH 1/3] x86/alternatives: Teach text_poke_bp() to emulate instructions Peter Zijlstra
2019-08-27 18:06 ` [PATCH 2/3] x86/alternatives,jump_label: Provide better text_poke() batching interface Peter Zijlstra
2019-10-02 16:34 ` Daniel Bristot de Oliveira
2019-10-03 5:50 ` Masami Hiramatsu
2019-08-27 18:06 ` [PATCH 3/3] x86/ftrace: Use text_poke() Peter Zijlstra
2019-10-02 16:35 ` Daniel Bristot de Oliveira
2019-10-02 18:21 ` Peter Zijlstra
2019-10-03 22:10 ` Steven Rostedt
2019-10-04 8:10 ` Daniel Bristot de Oliveira
2019-10-04 13:40 ` Steven Rostedt
2019-10-04 14:44 ` Daniel Bristot de Oliveira
2019-10-04 15:13 ` Steven Rostedt
2019-10-07 8:08 ` Peter Zijlstra
2019-10-11 7:01 ` Peter Zijlstra
2019-10-11 7:37 ` Daniel Bristot de Oliveira
2019-10-11 10:57 ` Peter Zijlstra
2019-10-11 13:11 ` Steven Rostedt
2019-10-04 11:22 ` Peter Zijlstra
2019-10-04 13:42 ` Steven Rostedt
2019-10-22 0:36 ` Alexei Starovoitov
2019-10-22 0:43 ` Steven Rostedt
2019-10-22 3:10 ` Alexei Starovoitov
2019-10-22 3:16 ` Steven Rostedt
2019-10-22 3:19 ` Steven Rostedt
2019-10-22 4:05 ` Alexei Starovoitov
2019-10-22 11:19 ` Steven Rostedt
2019-10-22 13:44 ` Steven Rostedt
2019-10-22 17:50 ` Alexei Starovoitov
2019-10-22 18:10 ` Steven Rostedt
2019-10-22 20:46 ` Alexei Starovoitov
2019-10-22 21:04 ` Steven Rostedt
2019-10-22 21:58 ` Alexei Starovoitov
2019-10-22 22:17 ` Steven Rostedt
2019-10-23 2:02 ` Steven Rostedt
2019-10-22 22:45 ` Andy Lutomirski
2019-10-22 23:21 ` Steven Rostedt
2019-10-22 23:49 ` Alexei Starovoitov
2019-10-23 4:20 ` Andy Lutomirski
2019-10-23 9:02 ` Peter Zijlstra
2019-10-23 16:23 ` Steven Rostedt
2019-10-23 17:42 ` Steven Rostedt
2019-10-23 19:34 ` Alexei Starovoitov
2019-10-23 20:08 ` Steven Rostedt
2019-10-23 22:36 ` Alexei Starovoitov
2019-10-22 3:55 ` Alexei Starovoitov
2019-10-03 5:52 ` Masami Hiramatsu
2019-08-28 7:22 ` [PATCH 0/3] Rewrite x86/ftrace to use text_poke() Song Liu
-- strict thread matches above, loose matches on Subject: below --
2019-08-26 12:51 Peter Zijlstra
2019-08-26 13:04 ` Peter Zijlstra
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