X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fsmp_lock.h;h=aab3a4cff4e13da65a50ec50531ccfd8ed19444d;hb=13c48c490208d9e70d8d66d56f96c5054db69af7;hp=fa1ff3b165fe167739099c19625282eaa5ecd2e7;hpb=0a0fc0ddbe732779366ab6b1b879f62195e65967;p=linux-2.6 diff --git a/include/linux/smp_lock.h b/include/linux/smp_lock.h index fa1ff3b165..aab3a4cff4 100644 --- a/include/linux/smp_lock.h +++ b/include/linux/smp_lock.h @@ -1,10 +1,8 @@ #ifndef __LINUX_SMPLOCK_H #define __LINUX_SMPLOCK_H -#include #ifdef CONFIG_LOCK_KERNEL #include -#include #define kernel_locked() (current->lock_depth >= 0) @@ -19,22 +17,10 @@ extern void __lockfunc __release_kernel_lock(void); __release_kernel_lock(); \ } while (0) -/* - * Non-SMP kernels will never block on the kernel lock, - * so we are better off returning a constant zero from - * reacquire_kernel_lock() so that the compiler can see - * it at compile-time. - */ -#if defined(CONFIG_SMP) && !defined(CONFIG_PREEMPT_BKL) -# define return_value_on_smp return -#else -# define return_value_on_smp -#endif - static inline int reacquire_kernel_lock(struct task_struct *task) { if (unlikely(task->lock_depth >= 0)) - return_value_on_smp __reacquire_kernel_lock(); + return __reacquire_kernel_lock(); return 0; }