Re: [PATCH] ftrace: add 'version' special file for ring bufferformat

[Steven Rostedt]

On Mon, 2011-03-14 at 15:42 -0700, Slava Pestov wrote:
> The intention here is that if the ftrace ring buffer format changes
> in the future like it did in the past with ktrace, we can increment
> the version number and update clients appropriately.

I purposely avoided "versions", and instead use the
tracing/events/header_page and .../header_event to describe how the ring
buffer format is laid out. If the format changes, then so should those
files.

-- Steve

> 
> Tested: Verified that special file contains correct content
> 
> This patch is against 2.6.38-rc8 but should apply to any version
> from at least 2.6.34 onwards.
> 
> Signed-Off-By: Slava Pestov <slavapestov@xxxxxxxxxx>


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