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From: Steven Rostedt <rostedt@goodmis.org>
To: Rabin Vincent <rabin@rab.in>
Cc: Ingo Molnar <mingo@redhat.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] tracing: don't busy wait in buffer splice
Date: Fri, 7 Nov 2014 19:04:13 -0500	[thread overview]
Message-ID: <20141107190413.28a2ae84@gandalf.local.home> (raw)
In-Reply-To: <20141107132106.0c318068@gandalf.local.home>

On Fri, 7 Nov 2014 13:21:06 -0500
Steven Rostedt <rostedt@goodmis.org> wrote:


> This also needs to be marked for stable. I'll start looking at how far
> this goes back. I'm thinking it may go back as far as the splice code
> was created.

Actually, it is broken back to 3.16. 3.15 and before was safe because
it was still using the mockup poll_wait_pipe() that would wake up every
1/10 of a second to see if something was in the buffer.

See commit: b1169cc69ba9 "tracing: Remove mock up poll wait function"

-- Steve

  reply	other threads:[~2014-11-08  0:04 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-06 21:26 [PATCH 1/2] tracing: don't busy wait in buffer splice Rabin Vincent
2014-11-06 21:26 ` [PATCH 2/2] tracing: don't risk busy looping " Rabin Vincent
2014-11-07 18:21 ` [PATCH 1/2] tracing: don't busy wait " Steven Rostedt
2014-11-08  0:04   ` Steven Rostedt [this message]
2014-11-10 18:46   ` [PATCHv2] " Rabin Vincent

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