xfs: refactor recovered CUI log item playback

Move the code that processes the log items created from the recovered
log items into the per-item source code files and use dispatch functions
to call them.  No functional changes.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>

fs/xfs/xfs_log_recover.c

@@ -2546,46 +2546,6 @@ xlog_recover_process_data(
 	return 0;
 }
 
-/* Recover the CUI if necessary. */
-STATIC int
-xlog_recover_process_cui(
-	struct xfs_trans		*parent_tp,
-	struct xfs_ail			*ailp,
-	struct xfs_log_item		*lip)
-{
-	struct xfs_cui_log_item		*cuip;
-	int				error;
-
-	/*
-	 * Skip CUIs that we've already processed.
-	 */
-	cuip = container_of(lip, struct xfs_cui_log_item, cui_item);
-	if (test_bit(XFS_CUI_RECOVERED, &cuip->cui_flags))
-		return 0;
-
-	spin_unlock(&ailp->ail_lock);
-	error = xfs_cui_recover(parent_tp, cuip);
-	spin_lock(&ailp->ail_lock);
-
-	return error;
-}
-
-/* Release the CUI since we're cancelling everything. */
-STATIC void
-xlog_recover_cancel_cui(
-	struct xfs_mount		*mp,
-	struct xfs_ail			*ailp,
-	struct xfs_log_item		*lip)
-{
-	struct xfs_cui_log_item		*cuip;
-
-	cuip = container_of(lip, struct xfs_cui_log_item, cui_item);
-
-	spin_unlock(&ailp->ail_lock);
-	xfs_cui_release(cuip);
-	spin_lock(&ailp->ail_lock);
-}
-
 /* Recover the BUI if necessary. */
 STATIC int
 xlog_recover_process_bui(
@@ -2749,9 +2709,6 @@ xlog_recover_process_intents(
 		 * replayed in the wrong order!
 		 */
 		switch (lip->li_type) {
-		case XFS_LI_CUI:
-			error = xlog_recover_process_cui(parent_tp, ailp, lip);
-			break;
 		case XFS_LI_BUI:
 			error = xlog_recover_process_bui(parent_tp, ailp, lip);
 			break;
@@ -2802,9 +2759,6 @@ xlog_recover_cancel_intents(
 		}
 
 		switch (lip->li_type) {
-		case XFS_LI_CUI:
-			xlog_recover_cancel_cui(log->l_mp, ailp, lip);
-			break;
 		case XFS_LI_BUI:
 			xlog_recover_cancel_bui(log->l_mp, ailp, lip);
 			break;

fs/xfs/xfs_refcount_item.c

@@ -24,6 +24,8 @@
 kmem_zone_t	*xfs_cui_zone;
 kmem_zone_t	*xfs_cud_zone;
 
+static const struct xfs_item_ops xfs_cui_item_ops;
+
 static inline struct xfs_cui_log_item *CUI_ITEM(struct xfs_log_item *lip)
 {
 	return container_of(lip, struct xfs_cui_log_item, cui_item);
@@ -46,7 +48,7 @@ xfs_cui_item_free(
  * committed vs unpin operations in bulk insert operations. Hence the reference
  * count to ensure only the last caller frees the CUI.
  */
-void
+STATIC void
 xfs_cui_release(
 	struct xfs_cui_log_item	*cuip)
 {
@@ -125,13 +127,6 @@ xfs_cui_item_release(
 	xfs_cui_release(CUI_ITEM(lip));
 }
 
-static const struct xfs_item_ops xfs_cui_item_ops = {
-	.iop_size	= xfs_cui_item_size,
-	.iop_format	= xfs_cui_item_format,
-	.iop_unpin	= xfs_cui_item_unpin,
-	.iop_release	= xfs_cui_item_release,
-};
-
 /*
  * Allocate and initialize an cui item with the given number of extents.
  */
@@ -425,7 +420,7 @@ const struct xfs_defer_op_type xfs_refcount_update_defer_type = {
  * Process a refcount update intent item that was recovered from the log.
  * We need to update the refcountbt.
  */
-int
+STATIC int
 xfs_cui_recover(
 	struct xfs_trans		*parent_tp,
 	struct xfs_cui_log_item		*cuip)
@@ -573,6 +568,37 @@ xfs_cui_recover(
 	return error;
 }
 
+/* Recover the CUI if necessary. */
+STATIC int
+xfs_cui_item_recover(
+	struct xfs_log_item		*lip,
+	struct xfs_trans		*tp)
+{
+	struct xfs_ail			*ailp = lip->li_ailp;
+	struct xfs_cui_log_item		*cuip = CUI_ITEM(lip);
+	int				error;
+
+	/*
+	 * Skip CUIs that we've already processed.
+	 */
+	if (test_bit(XFS_CUI_RECOVERED, &cuip->cui_flags))
+		return 0;
+
+	spin_unlock(&ailp->ail_lock);
+	error = xfs_cui_recover(tp, cuip);
+	spin_lock(&ailp->ail_lock);
+
+	return error;
+}
+
+static const struct xfs_item_ops xfs_cui_item_ops = {
+	.iop_size	= xfs_cui_item_size,
+	.iop_format	= xfs_cui_item_format,
+	.iop_unpin	= xfs_cui_item_unpin,
+	.iop_release	= xfs_cui_item_release,
+	.iop_recover	= xfs_cui_item_recover,
+};
+
 /*
  * Copy an CUI format buffer from the given buf, and into the destination
  * CUI format structure.  The CUI/CUD items were designed not to need any

fs/xfs/xfs_refcount_item.h

@@ -77,7 +77,4 @@ struct xfs_cud_log_item {
 extern struct kmem_zone	*xfs_cui_zone;
 extern struct kmem_zone	*xfs_cud_zone;
 
-void xfs_cui_release(struct xfs_cui_log_item *);
-int xfs_cui_recover(struct xfs_trans *parent_tp, struct xfs_cui_log_item *cuip);
-
 #endif	/* __XFS_REFCOUNT_ITEM_H__ */