On Fri, Oct 27, 2017 at 08:53:28PM +0800, Eryu Guan wrote: > But it's possible that a buffer write overwrites the unwritten > extent, which won't be converted to a normal extent until I/O > completion, and iomap_truncate_page() skips zeroing wrongly because > of the not-converted unwritten extent. This would cause a subsequent > mmap read sees non-zeros beyond EOF. I suspect the right fix is to look at the in-core state im the iomap truncate helpers instead of doing a duplicate flush. -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
