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| author | Joachim Fenkes <fenkes@de.ibm.com> | 2007-03-22 16:52:13 +0100 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-03-22 14:40:16 -0700 |
| commit | 73b9e9870f5780cb554b68bbcfa47782b27a3e04 (patch) | |
| tree | 969b5f43087afad492be7b12f19933ed872a7acb | |
| parent | d60134718820892853e8be7141ef7f6cdb455ea6 (diff) | |
| download | linux-stable-73b9e9870f5780cb554b68bbcfa47782b27a3e04.tar.gz linux-stable-73b9e9870f5780cb554b68bbcfa47782b27a3e04.tar.bz2 linux-stable-73b9e9870f5780cb554b68bbcfa47782b27a3e04.zip | |
IB/ehca: Make scaling code work without CPU hotplug
eHCA scaling code must not depend on register_cpu_notifier() if
CONFIG_HOTPLUG_CPU is not set, so put all related code into #ifdefs.
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
| -rw-r--r-- | drivers/infiniband/hw/ehca/ehca_irq.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c index 20f36bf8b2b6..f284be1c9166 100644 --- a/drivers/infiniband/hw/ehca/ehca_irq.c +++ b/drivers/infiniband/hw/ehca/ehca_irq.c @@ -66,7 +66,9 @@ static void queue_comp_task(struct ehca_cq *__cq); static struct ehca_comp_pool* pool; +#ifdef CONFIG_HOTPLUG_CPU static struct notifier_block comp_pool_callback_nb; +#endif static inline void comp_event_callback(struct ehca_cq *cq) { @@ -733,6 +735,7 @@ static void take_over_work(struct ehca_comp_pool *pool, } +#ifdef CONFIG_HOTPLUG_CPU static int comp_pool_callback(struct notifier_block *nfb, unsigned long action, void *hcpu) @@ -775,6 +778,7 @@ static int comp_pool_callback(struct notifier_block *nfb, return NOTIFY_OK; } +#endif int ehca_create_comp_pool(void) { @@ -805,9 +809,11 @@ int ehca_create_comp_pool(void) } } +#ifdef CONFIG_HOTPLUG_CPU comp_pool_callback_nb.notifier_call = comp_pool_callback; comp_pool_callback_nb.priority =0; register_cpu_notifier(&comp_pool_callback_nb); +#endif printk(KERN_INFO "eHCA scaling code enabled\n"); @@ -821,7 +827,9 @@ void ehca_destroy_comp_pool(void) if (!ehca_scaling_code) return; +#ifdef CONFIG_HOTPLUG_CPU unregister_cpu_notifier(&comp_pool_callback_nb); +#endif for (i = 0; i < NR_CPUS; i++) { if (cpu_online(i)) |