fix NGROUPS hard limit 0/4

Linus,

This patchset removes the hard NGROUPS limit.  It has been in use in a similar
form (but with a sysctl-set limit) on our systems for some time.

The last changeset is of questionable value - nfsiod is not included by or
referenced by anything.  Perhaps it should just be removed?

I have a separate patch to convert XFS to the generic qsort(), which I will
bounce to SGI if/when this gets pulled.

There is a small change needed for glibc, and I will send that patch to the
glibc people if/when this gets pulled.

Lastly, this does not fixup all the architectures.  I have other patchsets for
that, which need to be reviewed by arch maintainers.

Tim


Please do a

	bk pull http://suncobalt.bkbits.net/ngroups-2.5

This will update the following files:

 fs/nfsd/auth.c                 |   11 +-
 fs/proc/array.c                |    2 
 include/asm-i386/param.h       |    4 
 include/linux/init_task.h      |    1 
 include/linux/kernel.h         |    5 +
 include/linux/limits.h         |    3 
 include/linux/nfsiod.h         |    3 
 include/linux/sched.h          |    3 
 include/linux/sunrpc/svcauth.h |    4 
 kernel/exit.c                  |    7 +
 kernel/fork.c                  |    4 
 kernel/sys.c                   |   88 +++++++++++++++-----
 kernel/uid16.c                 |   63 ++++++++++----
 lib/Makefile                   |    5 -
 lib/bsearch.c                  |   49 +++++++++++
 lib/qsort.c                    |  180 +++++++++++++++++++++++++++++++++++++++++
 net/sunrpc/svcauth.c           |    4 
 17 files changed, 384 insertions(+), 52 deletions(-)

through these ChangeSets (diffs in separate email):

<thockin@freakshow.cobalt.com> (02/10/10 1.742)
   convert nfsiod to use OLD_NGROUPS - does anyone _use_ this file anymore?

<thockin@freakshow.cobalt.com> (02/10/10 1.741)
   fix usage of NGROUPS in nfsd and svcauth

<thockin@freakshow.cobalt.com> (02/10/10 1.740)
   Remove the limit of 32 groups.  We now have a per-task, dynamic array of
   groups, which is kept sorted and refcounted.

   This ChangeSet incorporates all the core functionality. but does not fixup
   all the incorrect usages of groups.  That is in a seperate ChangeSet.

<thockin@freakshow.cobalt.com> (02/10/10 1.739)
   Add generic qsort() and bsearch(): qsort() from BSD, bsearch() from glibc

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