Re: [PATCH v3 3/7] block: add write-hint to stream-id conversion

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Apr 02, 2019 at 11:20:44AM +0200, Jan Kara wrote:
> On Mon 01-04-19 16:08:21, Dave Chinner wrote:
> > On Fri, Mar 29, 2019 at 01:23:48PM +0530, Kanchan Joshi wrote:
> > > +		if(streamid > nr_streams)
> > > +			streamid = 0;
> > 
> > So, basically, we'll compress all the kernel hints down to "no hint"
> > if there are more user streams than the device supports?
> > 
> > Surely we should be reserving a stream for the kernel hints separate
> > from the user and "none" streams when we have limited device streams
> > available...
> 
> The question is what to do in a situation when the device has exactly as
> many hints as we currently offer to userspace.

Then do what we do now for that case. For every other case, the
kernel should have reserved space and not get intermingled with
userspace hints.

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx



[Index of Archives]     [Reiser Filesystem Development]     [Ceph FS]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite National Park]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]     [Linux Media]

  Powered by Linux