CFR: FEATURE macros for AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/PMC/SYSV/...

[John Baldwin]

On Friday, February 11, 2011 4:30:28 am Alexander Leidinger wrote:
> Hi,
> 
> during the last GSoC various FEATURE macros where added to the system.  
> Before committing them, I would like to get some review (like if macro  
> is in the correct file, and for those FEATURES where the description  
> was not taken from NOTES if the description is OK).
> 
> If nobody complains, I would like to commit this in 1-2 weeks. If you  
> need more time to review, just tell me.
> 
> Here is the list of affected files (for those impatient ones which do  
> not want to look at the attached patch before noticing that they are  
> not interested to look at it):

Hmm, so what is the rationale for adding FEATURE() macros?  Do we just want to 
add them for everything or do we want to add them on-demand as use cases for 
each knob arrive?  Some features can already be inferred (e.g. if KTR is 
compiled in, then the debug.ktr.mask sysctl will exist).  Also, in the case of 
KTR, I'm not sure that any userland programs need to alter their behavior 
based on whether or not that feature was present.

-- 
John Baldwin