[PATCH] kill t_sema member of struct xfs_trans

[Christoph Hellwig <hch@lst.de>]

It's completely unused so we might aswell kill it.  Note that there is
another t_sema in struct xlog_ticket, which is used and actually an sv_t
despite the name.  That one is left untouched by this patch.


Signed-off-by: Christoph Hellwig <hch@lst.de>

Index: linux-2.6-xfs/fs/xfs/xfs_trans.h
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_trans.h	2008-02-05 08:48:40.000000000 +0100
+++ linux-2.6-xfs/fs/xfs/xfs_trans.h	2008-02-05 08:48:45.000000000 +0100
@@ -341,7 +341,6 @@ typedef struct xfs_trans {
 	unsigned int		t_rtx_res;	/* # of rt extents resvd */
 	unsigned int		t_rtx_res_used;	/* # of resvd rt extents used */
 	xfs_log_ticket_t	t_ticket;	/* log mgr ticket */
-	sema_t			t_sema;		/* sema for commit completion */
 	xfs_lsn_t		t_lsn;		/* log seq num of start of
 						 * transaction. */
 	xfs_lsn_t		t_commit_lsn;	/* log seq num of end of