patch-2.3.45 linux/include/asm-arm/softirq.h

• Lines: 74
• Date: Sun Feb 13 10:47:01 2000
• Orig file: v2.3.44/linux/include/asm-arm/softirq.h
• Orig date: Mon Jul 19 13:12:47 1999

diff -u --recursive --new-file v2.3.44/linux/include/asm-arm/softirq.h linux/include/asm-arm/softirq.h
@@ -9,72 +9,9 @@
 #define cpu_bh_disable(cpu)	do { local_bh_count[(cpu)]++; barrier(); } while (0)
 #define cpu_bh_enable(cpu)	do { barrier(); local_bh_count[(cpu)]--; } while (0)
 
-#define cpu_bh_trylock(cpu)	(local_bh_count[(cpu)] ? 0 : (local_bh_count[(cpu)] = 1))
-#define cpu_bh_endlock(cpu)	(local_bh_count[(cpu)] = 0)
-
 #define local_bh_disable()	cpu_bh_disable(smp_processor_id())
 #define local_bh_enable()	cpu_bh_enable(smp_processor_id())
 
-#define get_active_bhs()	(bh_mask & bh_active)
-#define clear_active_bhs(x)	atomic_clear_mask((x),&bh_active)
-
-extern inline void init_bh(int nr, void (*routine)(void))
-{
-	bh_base[nr] = routine;
-	atomic_set(&bh_mask_count[nr], 0);
-	bh_mask |= 1 << nr;
-}
-
-extern inline void remove_bh(int nr)
-{
-	bh_mask &= ~(1 << nr);
-	mb();
-	bh_base[nr] = NULL;
-}
-
-extern inline void mark_bh(int nr)
-{
-	set_bit(nr, &bh_active);
-}
-
-#ifdef __SMP__
-#error SMP not supported
-#else
-
-extern inline void start_bh_atomic(void)
-{
-	local_bh_disable();
-	barrier();
-}
-
-extern inline void end_bh_atomic(void)
-{
-	barrier();
-	local_bh_enable();
-}
-
-/* These are for the irq's testing the lock */
-#define softirq_trylock(cpu)	(cpu_bh_trylock(cpu))
-#define softirq_endlock(cpu)	(cpu_bh_endlock(cpu))
-#define synchronize_bh()	barrier()
-
-#endif	/* SMP */
-
-/*
- * These use a mask count to correctly handle
- * nested disable/enable calls
- */
-extern inline void disable_bh(int nr)
-{
-	bh_mask &= ~(1 << nr);
-	atomic_inc(&bh_mask_count[nr]);
-	synchronize_bh();
-}
-
-extern inline void enable_bh(int nr)
-{
-	if (atomic_dec_and_test(&bh_mask_count[nr]))
-		bh_mask |= 1 << nr;
-}
+#define in_softirq()		(local_bh_count[smp_processor_id()] != 0)
 
 #endif	/* __ASM_SOFTIRQ_H */