svn commit: r193041 - head/sys/sys

Robert Watson rwatson at
Fri May 29 18:10:39 UTC 2009

On Fri, 29 May 2009, Attilio Rao wrote:

> 2009/5/29 Scott Long <scottl at>:
>> Occasionally it's useful to be able to run older binaries on newer kernels.
>>  One particularly useful place is for making releases.  Does this change to 
>> struct mount break that?  If so, could there be any other way to achieve 
>> what you want without the breakage?
> The struct mount is only accessible by the kernel so it doesn't break 
> userspace binary compatibility.

However, __FreeBSD_version does need to be bumped and UPDATING updated, since 
this change will break file system modules compiled against kernels using 
older versions of struct mount.

Robert N M Watson
Computer Laboratory
University of Cambridge

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