The following patches add the field for tracking the smallest device block size in the filesystem and using it instead of the hard coded 512 byte values in dio.c. I also implemented a simpler test for user misalignment on devices with larger block sizes. It passes fsx, but I have not tested mixed device block sizes or user vector edge cases. If this code is acceptable, I'll do edge tests before I send the merged V3 dio.c. jim -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
