Re: Checking to see if a bit is _not_ set in a ftrace event filter

[Steven Rostedt]

On Mon, 1 Dec 2014 22:57:25 -0500
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> On Mon, 1 Dec 2014 19:52:11 -0800
> Alexei Starovoitov <ast@xxxxxxxxxxxx> wrote:
> 
> > yeah. teaching tree walk to do (state & 2048) == 0 is not trivial,
> > since it doesn't have a concept of value of expression.
> > Doing !(state & 2048) is probably a bit easier, since there
> > are hacks for 'not' already.
> 
> That's exactly what I was looking at doing. If I can get something
> working without spending more than an hour or two, I may even push it
> for this release cycle.

Clarification; When I said "release cycle", I meant the next merge
window. Not for 3.18.

-- Steve
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