Add per-I/O sync flags, which are very useful for all kinds of file servers or storage targets. To properly do this refactor lots of direct I/O code to not pass pointless argument, which makes the whole series a net negative in terms of lines of code. Changes since V1: - fix RWF_SYNC defintion - fix a comment -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
