On Fri 25-01-19 09:23:53, Keith Busch wrote: > On Wed, Jan 09, 2019 at 09:00:57PM +0530, Kanchan Joshi wrote: > > Towards supporing write-hints/streams for filesystem journal. > > > > Here is the v1 patch for background - > > https://marc.info/?l=linux-fsdevel&m=154444637519020&w=2 > > > > Changes since v1: > > - introduce four more hints for in-kernel use, as recommended by Dave chinner > > & Jens axboe. This isolates kernel-mode hints from user-mode ones. > > The nvme driver disables streams if the controller doesn't support > BLK_MAX_WRITE_HINT number of streams, so this series breaks the feature > for controllers that only support up to 4. Right. Do you know if there are such controllers? Or are you just afraid that there could be? Honza -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR
