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Re: [PATCH] tracepoint: don't make assumptions about length of string on task rename

From Steven Rostedt <rostedt@goodmis.org>
Newsgroups linux.kernel
Subject Re: [PATCH] tracepoint: don't make assumptions about length of string on task rename
Date 2015-09-01 17:40 +0200
Message-ID <q3VPc-2ey-5@gated-at.bofh.it> (permalink)
References <q2pHJ-1s8-57@gated-at.bofh.it> <q2trY-6Qn-19@gated-at.bofh.it> <q3Vma-1Gq-7@gated-at.bofh.it>
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On Tue, 01 Sep 2015 11:07:32 -0400
Sasha Levin <sasha.levin@oracle.com> wrote:

 
> > Also, as the memcpy was just faster than a strcpy, the static length
> > was used. Perhaps we should convert that to a dynamic length string.
> > But that should be a separate patch as this one fixes a possible bug,
> > and the conversion to a dynamic string is just an enhancement.
> 
> That'll slow things down for the common case, no?

Not really that much.

The comms should have been dynamic strings too, but the sched_switch
tracepoint (the one others have been copied from) was created before we
had dynamic strings for tracepoints.

-- Steve

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Thread

[PATCH] tracepoint: don't make assumptions about length of string on task rename Sasha Levin <sasha.levin@oracle.com> - 2015-08-28 13:10 +0200
  Re: [PATCH] tracepoint: don't make assumptions about length of  string on task rename Steven Rostedt <rostedt@goodmis.org> - 2015-08-28 17:10 +0200
    Re: [PATCH] tracepoint: don't make assumptions about length of string  on task rename Sasha Levin <sasha.levin@oracle.com> - 2015-09-01 17:10 +0200
      Re: [PATCH] tracepoint: don't make assumptions about length of  string on task rename Steven Rostedt <rostedt@goodmis.org> - 2015-09-01 17:40 +0200

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