powerpc: Convert confirm_error_lock to raw_spinlock

confirm_error_lock needs to be a real spinlock in RT. Convert it to
raw_spinlock.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 3304f32..7df7fbb 100644 (file)
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -100,7 +100,7 @@ int eeh_subsystem_enabled;
 EXPORT_SYMBOL(eeh_subsystem_enabled);
 
 /* Lock to avoid races due to multiple reports of an error */
-static DEFINE_SPINLOCK(confirm_error_lock);
+static DEFINE_RAW_SPINLOCK(confirm_error_lock);
 
 /* Buffer for reporting slot-error-detail rtas calls. Its here
  * in BSS, and not dynamically alloced, so that it ends up in
@@ -436,7 +436,7 @@ static void __eeh_clear_slot(struct device_node *parent, int mode_flag)
 void eeh_clear_slot (struct device_node *dn, int mode_flag)
 {
        unsigned long flags;
-       spin_lock_irqsave(&confirm_error_lock, flags);
+       raw_spin_lock_irqsave(&confirm_error_lock, flags);
        
        dn = find_device_pe (dn);
        
@@ -447,7 +447,7 @@ void eeh_clear_slot (struct device_node *dn, int mode_flag)
        PCI_DN(dn)->eeh_mode &= ~mode_flag;
        PCI_DN(dn)->eeh_check_count = 0;
        __eeh_clear_slot(dn, mode_flag);
-       spin_unlock_irqrestore(&confirm_error_lock, flags);
+       raw_spin_unlock_irqrestore(&confirm_error_lock, flags);
 }
 
 /**
@@ -506,7 +506,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
         * in one slot might report errors simultaneously, and we
         * only want one error recovery routine running.
         */
-       spin_lock_irqsave(&confirm_error_lock, flags);
+       raw_spin_lock_irqsave(&confirm_error_lock, flags);
        rc = 1;
        if (pdn->eeh_mode & EEH_MODE_ISOLATED) {
                pdn->eeh_check_count ++;
@@ -575,7 +575,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
         * with other functions on this device, and functions under
         * bridges. */
        eeh_mark_slot (dn, EEH_MODE_ISOLATED);
-       spin_unlock_irqrestore(&confirm_error_lock, flags);
+       raw_spin_unlock_irqrestore(&confirm_error_lock, flags);
 
        eeh_send_failure_event (dn, dev);
 
@@ -586,7 +586,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
        return 1;
 
 dn_unlock:
-       spin_unlock_irqrestore(&confirm_error_lock, flags);
+       raw_spin_unlock_irqrestore(&confirm_error_lock, flags);
        return rc;
 }
 
@@ -1064,7 +1064,7 @@ void __init eeh_init(void)
        struct device_node *phb, *np;
        struct eeh_early_enable_info info;
 
-       spin_lock_init(&confirm_error_lock);
+       raw_spin_lock_init(&confirm_error_lock);
        spin_lock_init(&slot_errbuf_lock);
 
        np = of_find_node_by_path("/rtas");