xfs: open-code xfs_buf_item_dirty()

It checks a single flag and has one caller. It probably isn't worth
its own function.
Signed-off-by: NBrian Foster <bfoster@redhat.com>
Reviewed-by: NDarrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NDarrick J. Wong <darrick.wong@oracle.com>

fs/xfs/xfs_buf_item.c

@@ -945,17 +945,6 @@ xfs_buf_item_log(
 }
 
 
-/*
- * Return 1 if the buffer has been logged or ordered in a transaction (at any
- * point, not just the current transaction) and 0 if not.
- */
-uint
-xfs_buf_item_dirty(
-	xfs_buf_log_item_t	*bip)
-{
-	return (bip->bli_flags & XFS_BLI_DIRTY);
-}
-
 STATIC void
 xfs_buf_item_free(
 	xfs_buf_log_item_t	*bip)

fs/xfs/xfs_buf_item.h

@@ -64,7 +64,6 @@ typedef struct xfs_buf_log_item {
 int	xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *);
 void	xfs_buf_item_relse(struct xfs_buf *);
 void	xfs_buf_item_log(xfs_buf_log_item_t *, uint, uint);
-uint	xfs_buf_item_dirty(xfs_buf_log_item_t *);
 void	xfs_buf_attach_iodone(struct xfs_buf *,
 			      void(*)(struct xfs_buf *, xfs_log_item_t *),
 			      xfs_log_item_t *);

fs/xfs/xfs_trans_buf.c

@@ -435,7 +435,7 @@ xfs_trans_brelse(xfs_trans_t	*tp,
 	if (XFS_FORCED_SHUTDOWN(tp->t_mountp) && freed) {
 		xfs_trans_ail_remove(&bip->bli_item, SHUTDOWN_LOG_IO_ERROR);
 		xfs_buf_item_relse(bp);
-	} else if (!xfs_buf_item_dirty(bip)) {
+	} else if (!(bip->bli_flags & XFS_BLI_DIRTY)) {
 /***
 		ASSERT(bp->b_pincount == 0);
 ***/