- int blkdev_issue_flush(struct block_device * bdev, gfp_t gfp_mask, sector_t * error_sector);
- blockdev to issue flush for
- memory allocation flags (for bio_alloc)
- error sector
Issue a flush for the block device in question. Caller can supply room for storing the error offset in case of a flush error, if they wish to. If WAIT flag is not passed then caller may check only what request was pushed in some internal queue for later handling.