use NR_syscalls instead of FTRACE_SYSCALL_MAX

hi,

This series adds definitions for NR_syscalls for x86 and x86_64 and converts syscall events tracing to use NR_syscalls instead of FTRACE_SYSCALL_MAX. Note, the x86_64 NR_syscalls is defined in terms of __NR_syscall_max, and thus is dynamic (we don't need to update it when new syscalls are added). However, the x86 implementation adds a static define in unistd.h, at least for now.

Patches are against the current -tip tree. So the x86 static define will need to be updated with a patch when integrated in the -next tree (which has additional syscalls). Also, Paul Mundt has said he will update sh architecture (to remove the FTRACE_SYSCALL_MAX definition).

thanks,

-Jason

-add-nrsyscalls-32
-add-nrsyscalls-x8664
-convert-ftrace-nrsyscalls
remove-ftrace-syscall-max

 arch/x86/include/asm/ftrace.h    |    7 -------
 arch/x86/include/asm/unistd_32.h |    2 ++
 arch/x86/kernel/ftrace.c         |    8 ++++----
 include/linux/ftrace.h           |    5 +++++
 kernel/trace/trace_syscalls.c    |   24 ++++++++++++------------
 5 files changed, 23 insertions(+), 23 deletions(-)