linux-kernel - [PATCH 0/4] use NR_syscalls instead of FTRACE_SYSCALL

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Date:	Mon, 24 Aug 2009 17:40:07 -0400
From:	Jason Baron <jbaron@...hat.com>
To:	linux-kernel@...r.kernel.org, x86@...nel.org
Cc:	lethal@...ux-sh.org, fweisbec@...il.com, mingo@...e.hu,
	laijs@...fujitsu.com, rostedt@...dmis.org, peterz@...radead.org,
	mathieu.desnoyers@...ymtl.ca, jiayingz@...gle.com,
	mbligh@...gle.com, lizf@...fujitsu.com, jistone@...hat.com,
	tglx@...utronix.de, hpa@...or.com
Subject: [PATCH 0/4] 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(-)

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