On Wed, Jun 14, 2017 at 01:05:27PM -0600, Jens Axboe wrote: > Add four flags for the pwritev2(2) system call, allowing an application > to give the kernel a hint about what on-media life times can be > expected from a given write. > > The intent is for these values to be relative to each other, no > absolute meaning should be attached to these flag names. > > Define IOCB flags to carry this information over, and finally > transform them into the block defined stream values. Note that we also have the RWF_NOWAIT flag pending, with which this would clash. Maybe move it to the end of the space.
