PowerPC, ftrace: Add PPC raw syscall tracepoints & ftrace fixes (mimimal subset only) v4

[Steven Rostedt]

On Thu, 2011-02-03 at 14:27 +1100, Ian Munsie wrote:
> Hi All,
> 
> This is a partial version of my 'ftrace syscalls, PowerPC: Various fixes,
> Compat Syscall support and PowerPC implementation'. This is updated from
> yesterday with arch_syscall_addr changed to a static inline function from
> Steven's suggestion.
> 
> This subset implements the raw syscall tracepoints on PowerPC which has been
> requested recently.  It also fixes ftrace syscalls to ensure that events will
> only be created for syscalls that successfully map their metadata to a syscall
> number, so that non-working phantom events are not created. Patches #2 and #6
> in this series are not strictly necessary for this, they just optimise ftrace
> syscalls a bit.
> 
> What's missing from this series that was in the full 40 patch v2 series is the
> conversion of all the syscalls implemented under /arch/powerpc, Jason Baron's
> compat syscall support and the conversion of the remaining native and compat
> syscalls to this infrastructure.

Thanks Ian,

I'll pull this into my local repo and start running my tests on it.

-- Steve