On Thu, Aug 23, 2012 at 5:05 PM, Luigi Rizzo <ri...@iet.unipi.it> wrote: > On Thu, Aug 23, 2012 at 03:52:56PM +0100, Attilio Rao wrote: >> On 8/23/12, Luigi Rizzo <ri...@iet.unipi.it> wrote: >> > Hi, >> > I am a bit unclear on what are the pros and cons of using >> > TUNABLE_INT vs TUNABLE_INT_FETCH within a device driver. >> >> TUNABLE_INT is basically the "statically initializer" version of >> TUNABLE_INT_FETCH. >> In short terms, you will use TUNABLE_INT_FETCH() in normal functions, >> while TUNABLE_INT() in data declaration. > > The thing is, do we need the data declaration at all ?
What do you mean with "data declaration"? We need to mimic a "static initialization" usage, so what we do is to use the first SYSINIT() family available (SI_SUB_TUNABLES). You also need the env to look for and the static variable to initialize, so for SYSINIT's sake you need to pack them up in a single argument. Attilio -- Peace can only be achieved by understanding - A. Einstein _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"