[PATCH] kill default_flushcache() and ide_drive_t->flushcache

drivers/ide/ide-disk.c

@@ -1700,7 +1700,6 @@ static ide_driver_t idedisk_driver = {
 	.busy			= 0,
 	.supports_dsc_overlap	= 0,
 	.cleanup		= idedisk_cleanup,
-	.flushcache		= do_idedisk_flushcache,
 	.do_request		= ide_do_rw_disk,
 	.sense			= idedisk_dump_status,
 	.error			= idedisk_error,

drivers/ide/ide.c

@@ -2168,20 +2168,6 @@ static int default_cleanup (ide_drive_t *drive)
 	return ide_unregister_subdriver(drive);
 }
 
-/*
- *	Default function to use for the cache flush operation. This
- *	must be replaced for disk devices (see ATA specification
- *	documents on cache flush and drive suspend rules)
- *
- *	If we have no device attached or the device is not writable
- *	this handler is sufficient.
- */
- 
-static int default_flushcache (ide_drive_t *drive)
-{
-	return 0;
-}
-
 static ide_startstop_t default_do_request (ide_drive_t *drive, struct request *rq, sector_t block)
 {
 	ide_end_request(drive, 0, 0);
@@ -2244,7 +2230,6 @@ static ide_startstop_t default_start_power_step(ide_drive_t *drive,
 static void setup_driver_defaults (ide_driver_t *d)
 {
 	if (d->cleanup == NULL)		d->cleanup = default_cleanup;
-	if (d->flushcache == NULL)	d->flushcache = default_flushcache;
 	if (d->do_request == NULL)	d->do_request = default_do_request;
 	if (d->end_request == NULL)	d->end_request = default_end_request;
 	if (d->sense == NULL)		d->sense = default_sense;

include/linux/ide.h

@@ -1160,7 +1160,6 @@ typedef struct ide_driver_s {
 	unsigned busy			: 1;
 	unsigned supports_dsc_overlap	: 1;
 	int		(*cleanup)(ide_drive_t *);
-	int		(*flushcache)(ide_drive_t *);
 	ide_startstop_t	(*do_request)(ide_drive_t *, struct request *, sector_t);
 	int		(*end_request)(ide_drive_t *, int, int);
 	u8		(*sense)(ide_drive_t *, const char *, u8);