Re: [PATCH 00/23] per device dirty throttling -v8

Christoph Hellwig
2007-08-05T20:36:02Z

On Sat, Aug 04, 2007 at 09:42:59PM +0200, J??rn Engel wrote:
> On Sat, 4 August 2007 21:26:15 +0200, J??rn Engel wrote:
> >
> > Given the choice between only "atime" and "noatime" I'd agree with you.
> > Heck, I use it myself. But "relatime" seems to combine the best of both
> > worlds. It currently just suffers from mount not supporting it in any
> > relevant distro.
>
> And here is a completely untested patch to enable it by default. Ingo,
> can you see how good this fares compared to "atime" and
> "noatime,nodiratime"?

Umm, no f**king way. atime selection is 100% policy and belongs into
userspace. Add to that the problem that we can't actually re-enable
atimes because of the way the vfs-level mount flags API is designed.
Instead of doing such a fugly kernel patch just talk to the handfull
of distributions that matter to update their defaults.