diff options
Diffstat (limited to 'arch/s390/pci/pci.c')
| -rw-r--r-- | arch/s390/pci/pci.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index a7ed6685e7f..f17a8343e36 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -46,7 +46,7 @@ /* list of all detected zpci devices */ static LIST_HEAD(zpci_list); -static DEFINE_MUTEX(zpci_list_lock); +static DEFINE_SPINLOCK(zpci_list_lock); static void zpci_enable_irq(struct irq_data *data); static void zpci_disable_irq(struct irq_data *data); @@ -88,14 +88,14 @@ struct zpci_dev *get_zdev_by_fid(u32 fid) { struct zpci_dev *tmp, *zdev = NULL; - mutex_lock(&zpci_list_lock); + spin_lock(&zpci_list_lock); list_for_each_entry(tmp, &zpci_list, entry) { if (tmp->fid == fid) { zdev = tmp; break; } } - mutex_unlock(&zpci_list_lock); + spin_unlock(&zpci_list_lock); return zdev; } @@ -821,9 +821,9 @@ int zpci_create_device(struct zpci_dev *zdev) if (rc) goto out_disable; - mutex_lock(&zpci_list_lock); + spin_lock(&zpci_list_lock); list_add_tail(&zdev->entry, &zpci_list); - mutex_unlock(&zpci_list_lock); + spin_unlock(&zpci_list_lock); zpci_init_slot(zdev); @@ -939,3 +939,8 @@ out: return rc; } subsys_initcall_sync(pci_base_init); + +void zpci_rescan(void) +{ + clp_rescan_pci_devices_simple(); +} |