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authorIngo Molnar <mingo@elte.hu>2008-01-25 15:08:33 -0500
committerIngo Molnar <mingo@elte.hu>2008-01-25 15:08:33 -0500
commit6478d8800b75253b2a934ddcb734e13ade023ad0 (patch)
treedf4017269b8755735578445c0a8a9e8b3b2615e9 /include/linux/smp_lock.h
parent58b8a73ab8becfcaea84abc2a06038281efa4c8a (diff)
sched: remove the !PREEMPT_BKL code
remove the !PREEMPT_BKL code. this removes 160 lines of legacy code. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/smp_lock.h')
-rw-r--r--include/linux/smp_lock.h14
1 files changed, 1 insertions, 13 deletions
diff --git a/include/linux/smp_lock.h b/include/linux/smp_lock.h
index 58962c51dee1..aab3a4cff4e1 100644
--- a/include/linux/smp_lock.h
+++ b/include/linux/smp_lock.h
@@ -17,22 +17,10 @@ extern void __lockfunc __release_kernel_lock(void);
17 __release_kernel_lock(); \ 17 __release_kernel_lock(); \
18} while (0) 18} while (0)
19 19
20/*
21 * Non-SMP kernels will never block on the kernel lock,
22 * so we are better off returning a constant zero from
23 * reacquire_kernel_lock() so that the compiler can see
24 * it at compile-time.
25 */
26#if defined(CONFIG_SMP) && !defined(CONFIG_PREEMPT_BKL)
27# define return_value_on_smp return
28#else
29# define return_value_on_smp
30#endif
31
32static inline int reacquire_kernel_lock(struct task_struct *task) 20static inline int reacquire_kernel_lock(struct task_struct *task)
33{ 21{
34 if (unlikely(task->lock_depth >= 0)) 22 if (unlikely(task->lock_depth >= 0))
35 return_value_on_smp __reacquire_kernel_lock(); 23 return __reacquire_kernel_lock();
36 return 0; 24 return 0;
37} 25}
38 26