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SubjectRe: [RFC PATCH 1/3] Unified trace buffer
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From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 24 Sep 2008 13:23:47 -0700 (PDT)

> So I'd like the thing to have small headers, and be designed from the
> start to have small headers.

Small headers are good, but I'd suggest making sure there is an
"offset" or similar field in there.

Not that I want to encourage frequent changes to header layout, but if
you do need to add something, then this offset field allows you to do
so while keeping existing analysis tools working. They will just
ignore the new information in the headers, but they will still be able
to get at the data bits using the offset.


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