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Merge branch 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

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* '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.
This commit is contained in:
Linus Torvalds
2011-01-07 17:02:58 -08:00
parent 23d69b09b7 55ee4ef302
commit 72eb6a7914
62 changed files with 703 additions and 275 deletions
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6
arch/x86/kernel/ftrace.c
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@ -170,9 +170,9 @@ static void ftrace_mod_code(void)
void ftrace_nmi_enter(void)
{
__get_cpu_var(save_modifying_code) = modifying_code;
__this_cpu_write(save_modifying_code, modifying_code);
if (!__get_cpu_var(save_modifying_code))
if (!__this_cpu_read(save_modifying_code))
return;
if (atomic_inc_return(&nmi_running) & MOD_CODE_WRITE_FLAG) {
@ -186,7 +186,7 @@ void ftrace_nmi_enter(void)
void ftrace_nmi_exit(void)
{
if (!__get_cpu_var(save_modifying_code))
if (!__this_cpu_read(save_modifying_code))
return;
/* Finish all executions before clearing nmi_running */