Re: [PATCH v2 0/5] Statsfs: a new ram-based file sytem for Linux kernel statistics

On 5/8/20 11:44 AM, Paolo Bonzini wrote:

So in general I'd say the sources/values model holds up.  We certainly
want to:

- switch immediately to callbacks instead of the type constants (so that
core statsfs code only does signed/unsigned)

- add a field to distinguish cumulative and floating properties (and use
it to determine the default file mode)

- add a new argument to statsfs_create_source and statsfs_create_values
that makes it not create directories and files respectively

- add a new API to look for a statsfs_value recursively in all the
subordinate sources, and pass the source/value pair to a callback
function; and reimplement recursive aggregation and clear in terms of
this function.

Ok I will apply this, thank you for all the suggestions. 
I will post the v3 patchset in the next few weeks. 

In the meanwhile, I wrote the documentation you asked (even though it's 
going to change in v3), you can find it here:

https://github.com/esposem/linux/commit/dfa92f270f1aed73d5f3b7f12640b2a1635c711f

Thank you,
Emanuele