Re: help converting zcache from sysfs to debugfs?

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On 06/19/2012 07:29 PM, Dan Magenheimer wrote:

> Zcache (in staging) has a large number of read-only counters that
> are primarily of interest to developers.  These counters are currently
> visible from sysfs.  However sysfs is not really appropriate and
> zcache will need to switch to debugfs before it can be promoted
> out of staging.
> 
> For some of the counters, it is critical that they remain accurate so
> an atomic_t must be used.  But AFAICT there is no way for debugfs
> to work with atomic_t.


Yes, there doesn't seem to be an existing interface.

You could add support for it to fs/debugfs/file.c.  It doesn't look too
complicated.

--
Seth

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