On Tue, Jan 07, 2025 at 02:10:45PM -0700, Jens Axboe wrote: > > - the double context switch into the kernel and back for a ublk device > > backed by a file system will actually show up for some xfstests that > > do a lot of synchronous ops > > Like I replied to Damien, that's mostly a bogus argument. If you're > doing sync stuff, you can do that with a single system call. If you're > building up depth, then it doesn't matter. How do I do a single system call for retrive the requet from the kernel and execture it on the file system after examining it?
