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authorPaul E. McKenney <paul.mckenney@linaro.org>2012-01-06 16:59:51 -0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2012-02-21 09:03:27 -0800
commitbc399d6e6ed8615007110f5e438886ffd236760e (patch)
treef1ed750763453e0dfbe80b4d40b09338559aeb4e /arch/s390/kernel/irq.c
parent5c8806a037ad4f53259146060b32600566475e29 (diff)
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s390: Convert call_rcu() to kfree_rcu(), drop ext_int_hash_update()
The call_rcu() in unregister_external_interrupt() invokes ext_int_hash_update(), which just does a kfree(). Convert the call_rcu() to kfree_rcu(), allowing ext_int_hash_update() to be eliminated. Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/irq.c')
-rw-r--r--arch/s390/kernel/irq.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index b9a7fdd9c814..e30b2dfa8ba0 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -165,13 +165,6 @@ static inline int ext_hash(u16 code)
return (code + (code >> 9)) & 0xff;
}
-static void ext_int_hash_update(struct rcu_head *head)
-{
- struct ext_int_info *p = container_of(head, struct ext_int_info, rcu);
-
- kfree(p);
-}
-
int register_external_interrupt(u16 code, ext_int_handler_t handler)
{
struct ext_int_info *p;
@@ -202,7 +195,7 @@ int unregister_external_interrupt(u16 code, ext_int_handler_t handler)
list_for_each_entry_rcu(p, &ext_int_hash[index], entry)
if (p->code == code && p->handler == handler) {
list_del_rcu(&p->entry);
- call_rcu(&p->rcu, ext_int_hash_update);
+ kfree_rcu(p, rcu);
}
spin_unlock_irqrestore(&ext_int_hash_lock, flags);
return 0;