On 4/18/23 4:13?PM, Dave Chinner wrote: >>> Without first attempting to answer those questions, I'd be reluctant >>> to add FMODE_DIO_PARALLEL_WRITE to fuse. > > I'd tag it with this anyway - for the majority of apps that are > doing concurrent DIO within EOF, shared locking is big win. If > there's a corner case that apps trigger that is slow, deal with them > when they are reported.... Agree, the common/fast case will be fine, which is really the most important part. -- Jens Axboe