From: Andy Lutomirski <luto@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: X86 ML <x86@kernel.org>, LKML <linux-kernel@vger.kernel.org>,
Kyle Huey <me@kylehuey.com>,
Alexandre Chartre <alexandre.chartre@oracle.com>,
"Robert O'Callahan" <rocallahan@gmail.com>,
"Paul E. McKenney" <paulmck@kernel.org>,
Frederic Weisbecker <frederic@kernel.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Sean Christopherson <sean.j.christopherson@intel.com>,
Masami Hiramatsu <mhiramat@kernel.org>,
Petr Mladek <pmladek@suse.com>,
Steven Rostedt <rostedt@goodmis.org>,
Joel Fernandes <joel@joelfernandes.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Juergen Gross <jgross@suse.com>, Brian Gerst <brgerst@gmail.com>,
Andy Lutomirski <luto@kernel.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Daniel Thompson <daniel.thompson@linaro.org>
Subject: Re: [PATCH v2 4/8] x86/debug: Remove handle_debug(.user) argument
Date: Sun, 23 Aug 2020 16:05:12 -0700 [thread overview]
Message-ID: <CALCETrVBfM0B8viVFZ5uPuLJnJWPmF8smciMmnf0n9nwegcNTQ@mail.gmail.com> (raw)
In-Reply-To: <20200821102052.969925934@infradead.org>
On Fri, Aug 21, 2020 at 3:21 AM Peter Zijlstra <peterz@infradead.org> wrote:
>
> The handle_debug(.user) argument is used to terminate the #DB handler
> early for the INT1-from-kernel case, since the kernel doesn't use
> INT1.
>
> Remove the argument and handle this explicitly in #DB-from-kernel.
Acked-by: Andy Lutomirski <luto@kernel.org>
next prev parent reply other threads:[~2020-08-23 23:05 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-21 9:39 [PATCH v2 0/8] x86/debug: Untangle handle_debug() Peter Zijlstra
2020-08-21 9:39 ` [PATCH v2 1/8] x86/debug: Allow a single level of #DB recursion Peter Zijlstra
2020-08-21 9:39 ` [PATCH v2 2/8] x86/debug: Sync BTF earlier Peter Zijlstra
2020-08-23 23:03 ` Andy Lutomirski
2020-08-21 9:39 ` [PATCH v2 3/8] x86/debug: Move kprobe_debug_handler() into exc_debug_kernel() Peter Zijlstra
2020-08-23 23:01 ` Andy Lutomirski
2020-08-21 9:39 ` [PATCH v2 4/8] x86/debug: Remove handle_debug(.user) argument Peter Zijlstra
2020-08-23 23:05 ` Andy Lutomirski [this message]
2020-08-21 9:39 ` [PATCH v2 5/8] x86/debug: Simplify #DB signal code Peter Zijlstra
2020-08-23 23:09 ` Andy Lutomirski
2020-08-24 11:05 ` peterz
2020-08-24 11:26 ` Andrew Cooper
2020-08-24 12:00 ` peterz
2020-08-24 23:07 ` Andy Lutomirski
2020-08-24 23:09 ` Andy Lutomirski
2020-08-21 9:39 ` [PATCH v2 6/8] x86/debug: Move historical SYSENTER junk into exc_debug_kernel() Peter Zijlstra
2020-08-21 9:39 ` [PATCH v2 7/8] x86/debug: Move cond_local_irq_enable() block into exc_debug_user() Peter Zijlstra
2020-08-21 9:39 ` [PATCH v2 8/8] x86/debug: Remove the historical junk Peter Zijlstra
2020-08-21 12:22 ` [PATCH v2.1 " peterz
2020-08-23 23:11 ` [PATCH v2 " Andy Lutomirski
2020-08-21 12:56 ` [PATCH v2 0/8] x86/debug: Untangle handle_debug() peterz
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