[Linux-cachefs] fs-cache for nfs-root

[Wilhelm Meier]

David Howells schrieb:
> Wilhelm Meier <wilhelm.meier at fh-kl.de> wrote:
> 
>> I wonder if it is possible to use fs-cache for a system which uses nfs as root
>> filesystem. nfs-root is only available if I configure nfs-client-support as
>> compiled-in and then the option for nfs-cache disappeares.
> 
> Yes-ish.  You probably need to set CONFIG_FSCACHE=y.

Oh, yes ... thanks!
> 
> Caching won't take place until you load the CacheFiles module (or compile it
> in) and run up cachefilesd.  At that point, I think your root fs should start
> being cached - but only for the files that are opened _after_ the cache is
> brought on line.
> 
> You also need to pass the 'fsc' option to the NFS mount for the rootfs.

of course - but if I try to remount witch the fsc-option, it seems not 
to be recognized according to /proc/mounts.
Is remounting with fsc not supported?

> 
> David
> 
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-- 
Wilhelm