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Diffstat (limited to 'arch/s390/kernel/irq.c')
-rw-r--r--arch/s390/kernel/irq.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 1c2cdd59ccd0..8a22c27219dd 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -118,9 +118,10 @@ asmlinkage void do_softirq(void)
118 "a" (__do_softirq) 118 "a" (__do_softirq)
119 : "0", "1", "2", "3", "4", "5", "14", 119 : "0", "1", "2", "3", "4", "5", "14",
120 "cc", "memory" ); 120 "cc", "memory" );
121 } else 121 } else {
122 /* We are already on the async stack. */ 122 /* We are already on the async stack. */
123 __do_softirq(); 123 __do_softirq();
124 }
124 } 125 }
125 126
126 local_irq_restore(flags); 127 local_irq_restore(flags);
@@ -192,11 +193,12 @@ int unregister_external_interrupt(u16 code, ext_int_handler_t handler)
192 int index = ext_hash(code); 193 int index = ext_hash(code);
193 194
194 spin_lock_irqsave(&ext_int_hash_lock, flags); 195 spin_lock_irqsave(&ext_int_hash_lock, flags);
195 list_for_each_entry_rcu(p, &ext_int_hash[index], entry) 196 list_for_each_entry_rcu(p, &ext_int_hash[index], entry) {
196 if (p->code == code && p->handler == handler) { 197 if (p->code == code && p->handler == handler) {
197 list_del_rcu(&p->entry); 198 list_del_rcu(&p->entry);
198 kfree_rcu(p, rcu); 199 kfree_rcu(p, rcu);
199 } 200 }
201 }
200 spin_unlock_irqrestore(&ext_int_hash_lock, flags); 202 spin_unlock_irqrestore(&ext_int_hash_lock, flags);
201 return 0; 203 return 0;
202} 204}
@@ -211,9 +213,10 @@ void __irq_entry do_extint(struct pt_regs *regs, struct ext_code ext_code,
211 213
212 old_regs = set_irq_regs(regs); 214 old_regs = set_irq_regs(regs);
213 irq_enter(); 215 irq_enter();
214 if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator) 216 if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator) {
215 /* Serve timer interrupts first. */ 217 /* Serve timer interrupts first. */
216 clock_comparator_work(); 218 clock_comparator_work();
219 }
217 kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++; 220 kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++;
218 if (ext_code.code != 0x1004) 221 if (ext_code.code != 0x1004)
219 __get_cpu_var(s390_idle).nohz_delay = 1; 222 __get_cpu_var(s390_idle).nohz_delay = 1;