PARTIAL TAKE 970382 - untangle spinlock macros

Unwrap GRANT_LOCK.

Un-obfuscate GRANT_LOCK, remove GRANT_LOCK->mutex_lock->spin_lock macros, call spin_lock directly, remove extraneous cookie holdover from old xfs code, and change lock type to spinlock_t.

Date:  Fri Sep 21 11:59:22 AEST 2007
Workarea:  linuxbuild.melbourne.sgi.com:/home/donaldd/isms/2.6.x-xfs
Inspected by:  [email protected]

The following file(s) were checked into:
longdrop.melbourne.sgi.com:/isms/linux/2.6.x-xfs-melb

Modid: xfs-linux-melb:xfs-kern:29741a
fs/xfs/xfs_log.c - 1.338 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/xfs_log.c.diff?r1=text&tr1=1.338&r2=text&tr2=1.337&f=h
- Unwrap GRANT_LOCK.

fs/xfs/xfs_log_priv.h - 1.122 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/xfs_log_priv.h.diff?r1=text&tr1=1.122&r2=text&tr2=1.121&f=h
- Unwrap GRANT_LOCK.

fs/xfs/xfs_vnodeops.c - 1.722 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/xfs_vnodeops.c.diff?r1=text&tr1=1.722&r2=text&tr2=1.721&f=h
- Unwrap GRANT_LOCK.