[PATCH] audit: speedup for syscalls when auditing is disabled
Anton Blanchard
anton at samba.org
Tue Aug 24 02:16:26 UTC 2010
Hi Eric,
> I don't think this works at all. I don't see how syscall audit'ing can
> work. What if I have nothing in the AUDIT_FILTER_TASK list but I want
> to audit all 'open(2)' syscalls? This patch is going to leave the task
> in the DISABLED state and we won't ever be able to match on the syscall
> rules.
That's a good point. What if we went through and created an audit context
for each thread at the point where we add a rule to the audit subsystem?
That would make the common case where no one touches audit go fast. It's
only once you add a rule that you get the syscall entry/exit overhead of
audit.
Anton
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