*/
extern int blk_verify_command(struct blk_cmd_filter *filter,
unsigned char *cmd, int has_write_perm);
-extern int blk_register_filter(struct gendisk *disk);
-extern void blk_unregister_filter(struct gendisk *disk);
extern void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter);
#define MAX_PHYS_SEGMENTS 128