Messages in this thread | | | Subject | Re: [PATCH 2/2] tracing: syscall_regfunc() should not skip kernel threads | From | Steven Rostedt <> | Date | Sun, 17 Mar 2013 15:36:12 -0400 |
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On Sun, 2013-03-17 at 20:04 +0100, Oleg Nesterov wrote:
> > I'm really thinking the TIF_SYSCALL_TRACEPOINT flag is getting a bit > > ridiculous. We really should have a "swap syscall table when tracepoints > > enabled" that changes the syscall table that does exactly the same thing > > as the normal table but wraps the system call with the tracepoints. > > But we also need to force the slow path in system_call...
Why? If we remove the tracepoint from the slowpath and use a table swap, then we wouldn't need to use the slowpath at all.
> > Anyway, do you agree with this change for now?
Well, if it's solving a bug today sure. But we should really be looking at fixing what's there for the future.
-- Steve
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