On 2024/6/17 14:59, Christoph Hellwig wrote: > 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. Yeah, that's one solution. > But let's think of that when the need actually arises. > Sure, I will retest and submit only patch 6&8 to solve current issue in my next version. Thanks, Yi.
