Hello, On Thu 06-02-20 21:29:15, Xiaoguang Wang wrote: > While testing iouring in ext4, we find ext4 does not support .iopoll yet, since > commit "ext4: introduce direct I/O write using iomap infrastructure", seems that > ext4 can support iopoll as well, just add a ".iopoll = iomap_dio_iopoll,". > So I wonder is there any special reason that ext4 does not have have this iopoll > interface? Thanks. I'm not aware of any so feel free to submit a patch :) Honza -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR