[PATCH V2 0/3] Introduce and use DO_ONCE statement expression macro

From: Joe Perches
Date: Fri May 22 2009 - 00:28:01 EST


The printk_once macro in kernel.h is limited to printk

This generalizes the functionality of printk_once and
allows statements like DO_ONCE(pr_info("foo\n"))
and DO_ONCE(initialize(foo));

Uses atomic test_and_set_bit

Joe Perches (3):
kernel.h: Add DO_ONCE statement expression macro
arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c: Use DO_ONCE & spelling fix
kernel.h: Remove unused printk_once

arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | 4 ++--
include/linux/kernel.h | 26 +++++++++++---------------
2 files changed, 13 insertions(+), 17 deletions(-)

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