Keith, > The block layer tries to align bio vectors to the block device's > logical block size. Some cases don't have a block device, or we may > need to align to something larger, which we can't derive it from the > queue limits. Have the caller specify what they want, or allow any > length alignment if nothing was specified. Since the most common use > case relies on the block device's limits, a helper function is > provided. Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> -- Martin K. Petersen
