[XFS] Remove spin.h

remove spinlock init abstraction macro in spin.h, remove the callers, and
remove the file. Move no-op spinlock_destroy to xfs_linux.h Cleanup
spinlock locals in xfs_mount.c

SGI-PV: 970382
SGI-Modid: xfs-linux-melb:xfs-kern:29751a

Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Donald Douwsma <donaldd@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index f1f1f36..6156382 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -1189,8 +1189,8 @@
 	ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
 	log->l_xbuf = bp;
 
-	spinlock_init(&log->l_icloglock, "iclog");
-	spinlock_init(&log->l_grant_lock, "grhead_iclog");
+	spin_lock_init(&log->l_icloglock);
+	spin_lock_init(&log->l_grant_lock);
 	initnsema(&log->l_flushsema, 0, "ic-flush");
 	xlog_state_ticket_alloc(log);  /* wait until after icloglock inited */