Any comments on where I placed the counters?
> > This patch implements a simple per CPU counter framework for the VFS.
> > The counters are per CPU and are very little overhead. The counters
> > are output in debugfs (/sys/kernel/fs/vfsstat)
>
> WTF? Since when had debugfs become mandatory?
What do you mean? It's not mandatory of course.
I had it originally in /proc, but then moved it to debugfs.
>
> > + fs = debugfs_create_dir("fs", NULL);
> > + if (fs)
> > + debugfs_create_file("vfsstat", 0444, fs, NULL, &vfsstat_fops);
> > + return 0;
>
> Note that if that FPOS is configured away debugfs_create_dir() does _NOT_
> return NULL - you get ERR_PTR(-ENODEV).
That's fine because debugfs_create_file is a noop then too
and fs isn't used anywhere else.
-Andi
--
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
