From: John Levon <levon@movementarian.org>
Date: Wed, 16 Oct 2002 17:40:57 +0100
I'm not sure that's an option :
o userspace needs to know the size of the cookie in the event buffer
o userspace would like to use the cookie as a hash value to avoid
repeated lookups
Perhaps the best solution would be to use a separate u32 ID value,
allocated linearly. I could just refuse to allocate new dcookies in
theoretical case of overflow.
The other possibility is a dcookiefs (cat
/dev/oprofile/dcookie/34343234) but that's a lot of extra
code/complexity ...
I don't understand why using a bigger type is not an option.
Why not just use u64? That would work too.
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