core: use spinlock_t to please 2.6.32 and earlier

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Federico Vaga <federico.vaga@gmail.com>

include/linux/zio-buffer.h

@@ -26,7 +26,7 @@ struct zio_buffer_type {
 	struct zio_obj_head	head;
 	struct module		*owner;
 	struct list_head	list; /* instances, and list lock */
-	struct spinlock		lock;
+	spinlock_t		lock;
 	unsigned long		flags;
 
 	const struct zio_sysfs_operations	*s_op;
@@ -69,7 +69,7 @@ struct zio_bi {
 	/* Those using generic_read need this information */
 	unsigned long flags;			/* input or output, etc */
 	wait_queue_head_t q;			/* for reading or writing */
-	struct spinlock		lock;
+	spinlock_t		lock;
 
 	/* Standard and extended attributes for this object */
 	struct zio_attribute_set		zattr_set;

include/linux/zio-trigger.h

@@ -11,7 +11,7 @@ struct zio_trigger_type {
 	struct zio_obj_head	head;
 	struct module		*owner;
 	struct list_head	list; /* instances, and list lock */
-	struct spinlock		lock;
+	spinlock_t		lock;
 	unsigned long		flags; /* to be defined */
 
 	const struct zio_sysfs_operations	*s_op;
@@ -33,7 +33,7 @@ struct zio_ti {
 
 	unsigned long		flags;		/* input or output, etc */
 	int			nsamples;
-	struct spinlock		lock;
+	spinlock_t		lock;
 	/* This is for software stamping */
 	struct timespec		tstamp;
 	uint64_t tstamp_extra;

misc.c

@@ -51,7 +51,7 @@ enum FFA_STATUS {
 };
 
 struct zio_ffa {
-	struct spinlock lock;
+	spinlock_t lock;
 	struct ffa_cell *cell;
 };