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

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* Alan Cox <[email protected]> wrote:

> > also add the CONFIG_DEFAULT_RELATIME kernel option, which makes 
> > "norelatime" the default for all mounts without an extra kernel boot 
> > option.
> 
> Should be a mount option.

it is already a mount option too.

> > +	relatime        [FS] default to enabled relatime updates on all
> > +			filesystems.
> > +
> > +	relatime=       [FS] default to enabled/disabled relatime updates on
> > +			all filesystems.
> > +
> 
> Double patch

no - it was not a double patch, i made all the common variants valid 
boot options: "relatime", "relatime=0/1", "norelatime" and 
"norelatime=0/1". Anyway, this is mooth, in the latest (v2) version 
there's only a single boot parameter.

> > +config DEFAULT_RELATIME
> > +	bool "Mount all filesystems with relatime by default"
> > +	default y
> 
> Changes behaviour so probably should default n. Better yet it should 
> be the mount option so its flexible and strongly encouraged for 
> vendors.

relatime is a mount option already. And distros can disable it if they 
want. (they are conscious about their kernel config selections anyway.)

> > +0
> > +#endif
> > +;
> 
> This ifdef mess would go away for a mount option

i fixed that in v2.

	Ingo
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