Re: [PATCH RFC v2 tip/core/rcu 14/22] rcu-tasks: Add an RCU Tasks Trace to simplify protection of tracing hooks

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Subject: Re: [PATCH RFC v2 tip/core/rcu 14/22] rcu-tasks: Add an RCU Tasks Trace to simplify protection of tracing hooks
From: Steven Rostedt <rostedt@xxxxxxxxxxx>
Date: Thu, 19 Mar 2020 20:48:38 -0400
Cc: rcu@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, kernel-team@xxxxxx, mingo@xxxxxxxxxx, jiangshanlai@xxxxxxxxx, dipankar@xxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, mathieu.desnoyers@xxxxxxxxxxxx, josh@xxxxxxxxxxxxxxxx, tglx@xxxxxxxxxxxxx, peterz@xxxxxxxxxxxxx, dhowells@xxxxxxxxxx, edumazet@xxxxxxxxxx, fweisbec@xxxxxxxxx, oleg@xxxxxxxxxx, joel@xxxxxxxxxxxxxxxxx, Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx>, Andrii Nakryiko <andriin@xxxxxx>
In-reply-to: <20200320002813.GL3199@paulmck-ThinkPad-P72>

On Thu, 19 Mar 2020 17:28:13 -0700
"Paul E. McKenney" <paulmck@xxxxxxxxxx> wrote:

> Good point.  If interrupts are disabled, it will need to use some
> other mechanism.  One approach is irqwork.  Another is a timer.
> 
> Suggestions?

Ftrace and perf use irq_work, I would think that should work here too.

-- Steve

Follow-Ups:
- Re: [PATCH RFC v2 tip/core/rcu 14/22] rcu-tasks: Add an RCU Tasks Trace to simplify protection of tracing hooks
  - From: Paul E. McKenney

References:
- [PATCH RFC v2 tip/core/rcu 0/22] Prototype RCU usable from idle, exception, offline
  - From: Paul E. McKenney
- [PATCH RFC v2 tip/core/rcu 14/22] rcu-tasks: Add an RCU Tasks Trace to simplify protection of tracing hooks
  - From: paulmck
- Re: [PATCH RFC v2 tip/core/rcu 14/22] rcu-tasks: Add an RCU Tasks Trace to simplify protection of tracing hooks
  - From: Steven Rostedt
- Re: [PATCH RFC v2 tip/core/rcu 14/22] rcu-tasks: Add an RCU Tasks Trace to simplify protection of tracing hooks
  - From: Paul E. McKenney

Prev by Date: Re: [PATCH RFC v2 tip/core/rcu 14/22] rcu-tasks: Add an RCU Tasks Trace to simplify protection of tracing hooks
Next by Date: Re: Hard lockups due to "tick/common: Make tick_periodic() check for missing ticks"
Previous by thread: Re: [PATCH RFC v2 tip/core/rcu 14/22] rcu-tasks: Add an RCU Tasks Trace to simplify protection of tracing hooks
Next by thread: Re: [PATCH RFC v2 tip/core/rcu 14/22] rcu-tasks: Add an RCU Tasks Trace to simplify protection of tracing hooks
Index(es):
- Date
- Thread

[Index of Archives] [Linux Samsung SoC] [Linux Rockchip SoC] [Linux Actions SoC] [Linux for Synopsys ARC Processors] [Linux NFS] [Linux NILFS] [Linux USB Devel] [Video for Linux] [Linux Audio Users] [Yosemite News] [Linux Kernel] [Linux SCSI]