On Thu, Jul 19, 2018 at 05:06:42PM +0200, Jan Kara wrote: > Yeah. Actually previous version of the fix (not posted publicly) submitted > partial bio and then reused the bio to submit more. This is also the way > __blkdev_direct_IO operates. Martin optimized this to fill the bio > completely (as we know we have enough bvecs) before submitting which has > chances to perform better. I'm fine with either approach, just we have to > decide which way to go. I think this first version is going to be less fragile, so I we should aim for that.
