svn commit: r231220 - head/sys/sys

[Konstantin Belousov]

On Wed, Feb 08, 2012 at 11:21:59AM -0800, mdf at freebsd.org wrote:
> On Wed, Feb 8, 2012 at 10:36 AM, Konstantin Belousov <kib at freebsd.org> wrote:
> > Author: kib
> > Date: Wed Feb  8 18:36:07 2012
> > New Revision: 231220
> > URL: http://svn.freebsd.org/changeset/base/231220
> >
> > Log:
> >  Trim 8 unused bytes from struct vnode on 64-bit architectures.
> 
> Doesn't this change the KBI?  So should __FreeBSD_version be bumped?
Definitely, it changes the KBI. This is the reason I did not specified
MFC period (but really wanted it).

We do not track KBI changes on HEAD with __FreeBSD_version. IMO,
__FreeBSD_version is more about KPI, and even for KPI, it is more at the
discretion of the committer and usefulness of notification.

With this change, all VFS modules must be recompiled. But HEAD had a lot
of changes related to VFS interface which went in silently.
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