MAXFILES in subr_param.c

[Dag-Erling Smørgrav]

"Ivan Voras" <ivoras at freebsd.org> writes:
> The macro is defined and used exactly once, in this file. Other files
> probably use maxfiles.

maxfiles is the real value; it's a loader tunable, and more importantly,
it can be modified at run time through the kern.maxfiles sysctl
variable.  MAXFILES is simply the default value to which maxfiles is
initialized.

> The problem is - since it's in an #ifdef block
> - is it defined anywhere else? A quick grep yields only this:
>
> conf/NOTES:options 	MAXFILES=999
> conf/options:MAXFILES	opt_param.h
>
> I don't know how config interacts with the source - does it shadow the
> subr_param.c value?

Yes.  If you use the MAXFILES option in your kernel config, config(8)
will add a corresponding #define MAXFILES to opt_param.h.

I doubt anyone would complain (or even notice) if you removed it
entirely.

DES
-- 
Dag-Erling Smørgrav - des at des.no