On Sat, Jun 15, 2024 at 07:44:21PM +0800, Zhang Yi wrote: > The reason why atomic feature can't split and convert the tail extent on truncate > down now is the dio write iter loop will split an atomic dio which covers the > whole allocation unit(extsize) since there are two extents in on allocation unit. We could fix this by merging the two in iomap_begin, as the end_io handler already deals with multiple ranges. But let's think of that when the need actually arises.
