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

Arjan van de Ven
2007-08-04T20:13:44Z

On Sat, 2007-08-04 at 22:11 +0200, Ingo Molnar wrote:
> * Ingo Molnar <mingo@elte.hu> wrote:
>
> > +#ifdef CONFIG_FASTATIME
> > + if (!(flags & (MNT_NOATIME | MNT_NODIRATIME)))
> > + mnt_flags |= MNT_RELATIME;
> > +#endif
>
> btw., "relatime" does not seem to make much of a difference, if i do
> this:
>
> ls -l x ; sync
>
> on a "relatime" mounted filesystem ('x' is a regular file), then there's
> disk IO for every such command. Only if i mount it noatime,nodiratime do
> i get zero disk IO. Or my patch is wrong somehow.

do we have reldiratime ?