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authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-07 17:02:58 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-07 17:02:58 -0800
commit72eb6a791459c87a0340318840bb3bd9252b627b (patch)
tree3bfb8ad99f9c7e511f37f72d57b56a2cea06d753 /kernel/kprobes.c
parent23d69b09b78c4876e134f104a3814c30747c53f1 (diff)
parent55ee4ef30241a62b700f79517e6d5ef2ddbefa67 (diff)
downloadop-kernel-dev-72eb6a791459c87a0340318840bb3bd9252b627b.zip
op-kernel-dev-72eb6a791459c87a0340318840bb3bd9252b627b.tar.gz
Merge branch 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
* 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (30 commits) gameport: use this_cpu_read instead of lookup x86: udelay: Use this_cpu_read to avoid address calculation x86: Use this_cpu_inc_return for nmi counter x86: Replace uses of current_cpu_data with this_cpu ops x86: Use this_cpu_ops to optimize code vmstat: User per cpu atomics to avoid interrupt disable / enable irq_work: Use per cpu atomics instead of regular atomics cpuops: Use cmpxchg for xchg to avoid lock semantics x86: this_cpu_cmpxchg and this_cpu_xchg operations percpu: Generic this_cpu_cmpxchg() and this_cpu_xchg support percpu,x86: relocate this_cpu_add_return() and friends connector: Use this_cpu operations xen: Use this_cpu_inc_return taskstats: Use this_cpu_ops random: Use this_cpu_inc_return fs: Use this_cpu_inc_return in buffer.c highmem: Use this_cpu_xx_return() operations vmstat: Use this_cpu_inc_return for vm statistics x86: Support for this_cpu_add, sub, dec, inc_return percpu: Generic support for this_cpu_add, sub, dec, inc_return ... Fixed up conflicts: in arch/x86/kernel/{apic/nmi.c, apic/x2apic_uv_x.c, process.c} as per Tejun.
Diffstat (limited to 'kernel/kprobes.c')
-rw-r--r--kernel/kprobes.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 7663e5d..7798181 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -317,12 +317,12 @@ void __kprobes free_optinsn_slot(kprobe_opcode_t * slot, int dirty)
/* We have preemption disabled.. so it is safe to use __ versions */
static inline void set_kprobe_instance(struct kprobe *kp)
{
- __get_cpu_var(kprobe_instance) = kp;
+ __this_cpu_write(kprobe_instance, kp);
}
static inline void reset_kprobe_instance(void)
{
- __get_cpu_var(kprobe_instance) = NULL;
+ __this_cpu_write(kprobe_instance, NULL);
}
/*
@@ -965,7 +965,7 @@ static void __kprobes aggr_post_handler(struct kprobe *p, struct pt_regs *regs,
static int __kprobes aggr_fault_handler(struct kprobe *p, struct pt_regs *regs,
int trapnr)
{
- struct kprobe *cur = __get_cpu_var(kprobe_instance);
+ struct kprobe *cur = __this_cpu_read(kprobe_instance);
/*
* if we faulted "during" the execution of a user specified
@@ -980,7 +980,7 @@ static int __kprobes aggr_fault_handler(struct kprobe *p, struct pt_regs *regs,
static int __kprobes aggr_break_handler(struct kprobe *p, struct pt_regs *regs)
{
- struct kprobe *cur = __get_cpu_var(kprobe_instance);
+ struct kprobe *cur = __this_cpu_read(kprobe_instance);
int ret = 0;
if (cur && cur->break_handler) {
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