ide: add ide_device_{get,put}() helpers
* Add 'struct ide_host *host' field to ide_hwif_t and set it
in ide_host_alloc_all().
* Add ide_device_{get,put}() helpers loosely based on SCSI's
scsi_device_{get,put}() ones.
* Convert IDE device drivers to use ide_device_{get,put}().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 776c574..3eccac0 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -532,12 +532,16 @@
void (*dma_timeout)(struct ide_drive_s *);
};
+struct ide_host;
+
typedef struct hwif_s {
struct hwif_s *next; /* for linked-list in ide_hwgroup_t */
struct hwif_s *mate; /* other hwif from same PCI chip */
struct hwgroup_s *hwgroup; /* actually (ide_hwgroup_t *) */
struct proc_dir_entry *proc; /* /proc/ide/ directory entry */
+ struct ide_host *host;
+
char name[6]; /* name of interface, eg. "ide0" */
struct ide_io_ports io_ports;
@@ -876,6 +880,9 @@
#define to_ide_driver(drv) container_of(drv, ide_driver_t, gen_driver)
+int ide_device_get(ide_drive_t *);
+void ide_device_put(ide_drive_t *);
+
int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, unsigned, unsigned long);
extern int ide_vlb_clk;