xfs: merge the ->diff_items defer op into ->create_intent

commit d367a868e46b025a8ced8e00ef2b3a3c2f3bf732 upstream.

This avoids a per-item indirect call, and also simplifies the interface
a bit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Chandan Babu R <chandan.babu@oracle.com>
Acked-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

fs/xfs/libxfs/xfs_defer.c

@@ -186,11 +186,8 @@ xfs_defer_create_intent(
 {
 	const struct xfs_defer_op_type	*ops = defer_op_types[dfp->dfp_type];
 
-	if (sort)
-		list_sort(tp->t_mountp, &dfp->dfp_work, ops->diff_items);
-
 	dfp->dfp_intent = ops->create_intent(tp, &dfp->dfp_work,
-			dfp->dfp_count);
+			dfp->dfp_count, sort);
 }
 
 /*

fs/xfs/libxfs/xfs_defer.h

@@ -49,9 +49,8 @@ struct xfs_defer_op_type {
 			void **);
 	void (*finish_cleanup)(struct xfs_trans *, void *, int);
 	void (*cancel_item)(struct list_head *);
-	int (*diff_items)(void *, struct list_head *, struct list_head *);
 	void *(*create_intent)(struct xfs_trans *tp, struct list_head *items,
-			unsigned int count);
+			unsigned int count, bool sort);
 	unsigned int		max_items;
 };
 

fs/xfs/xfs_bmap_item.c

@@ -334,14 +334,18 @@ STATIC void *
 xfs_bmap_update_create_intent(
 	struct xfs_trans		*tp,
 	struct list_head		*items,
-	unsigned int			count)
+	unsigned int			count,
+	bool				sort)
 {
-	struct xfs_bui_log_item		*buip = xfs_bui_init(tp->t_mountp);
+	struct xfs_mount		*mp = tp->t_mountp;
+	struct xfs_bui_log_item		*buip = xfs_bui_init(mp);
 	struct xfs_bmap_intent		*bmap;
 
 	ASSERT(count == XFS_BUI_MAX_FAST_EXTENTS);
 
 	xfs_trans_add_item(tp, &buip->bui_item);
+	if (sort)
+		list_sort(mp, items, xfs_bmap_update_diff_items);
 	list_for_each_entry(bmap, items, bi_list)
 		xfs_bmap_update_log_item(tp, buip, bmap);
 	return buip;
@@ -408,7 +412,6 @@ xfs_bmap_update_cancel_item(
 
 const struct xfs_defer_op_type xfs_bmap_update_defer_type = {
 	.max_items	= XFS_BUI_MAX_FAST_EXTENTS,
-	.diff_items	= xfs_bmap_update_diff_items,
 	.create_intent	= xfs_bmap_update_create_intent,
 	.abort_intent	= xfs_bmap_update_abort_intent,
 	.create_done	= xfs_bmap_update_create_done,

fs/xfs/xfs_extfree_item.c

@@ -441,7 +441,8 @@ STATIC void *
 xfs_extent_free_create_intent(
 	struct xfs_trans		*tp,
 	struct list_head		*items,
-	unsigned int			count)
+	unsigned int			count,
+	bool				sort)
 {
 	struct xfs_mount		*mp = tp->t_mountp;
 	struct xfs_efi_log_item		*efip = xfs_efi_init(mp, count);
@@ -450,6 +451,8 @@ xfs_extent_free_create_intent(
 	ASSERT(count > 0);
 
 	xfs_trans_add_item(tp, &efip->efi_item);
+	if (sort)
+		list_sort(mp, items, xfs_extent_free_diff_items);
 	list_for_each_entry(free, items, xefi_list)
 		xfs_extent_free_log_item(tp, efip, free);
 	return efip;
@@ -506,7 +509,6 @@ xfs_extent_free_cancel_item(
 
 const struct xfs_defer_op_type xfs_extent_free_defer_type = {
 	.max_items	= XFS_EFI_MAX_FAST_EXTENTS,
-	.diff_items	= xfs_extent_free_diff_items,
 	.create_intent	= xfs_extent_free_create_intent,
 	.abort_intent	= xfs_extent_free_abort_intent,
 	.create_done	= xfs_extent_free_create_done,
@@ -571,7 +573,6 @@ xfs_agfl_free_finish_item(
 /* sub-type with special handling for AGFL deferred frees */
 const struct xfs_defer_op_type xfs_agfl_free_defer_type = {
 	.max_items	= XFS_EFI_MAX_FAST_EXTENTS,
-	.diff_items	= xfs_extent_free_diff_items,
 	.create_intent	= xfs_extent_free_create_intent,
 	.abort_intent	= xfs_extent_free_abort_intent,
 	.create_done	= xfs_extent_free_create_done,

fs/xfs/xfs_refcount_item.c

@@ -333,7 +333,8 @@ STATIC void *
 xfs_refcount_update_create_intent(
 	struct xfs_trans		*tp,
 	struct list_head		*items,
-	unsigned int			count)
+	unsigned int			count,
+	bool				sort)
 {
 	struct xfs_mount		*mp = tp->t_mountp;
 	struct xfs_cui_log_item		*cuip = xfs_cui_init(mp, count);
@@ -342,6 +343,8 @@ xfs_refcount_update_create_intent(
 	ASSERT(count > 0);
 
 	xfs_trans_add_item(tp, &cuip->cui_item);
+	if (sort)
+		list_sort(mp, items, xfs_refcount_update_diff_items);
 	list_for_each_entry(refc, items, ri_list)
 		xfs_refcount_update_log_item(tp, cuip, refc);
 	return cuip;
@@ -422,7 +425,6 @@ xfs_refcount_update_cancel_item(
 
 const struct xfs_defer_op_type xfs_refcount_update_defer_type = {
 	.max_items	= XFS_CUI_MAX_FAST_EXTENTS,
-	.diff_items	= xfs_refcount_update_diff_items,
 	.create_intent	= xfs_refcount_update_create_intent,
 	.abort_intent	= xfs_refcount_update_abort_intent,
 	.create_done	= xfs_refcount_update_create_done,

fs/xfs/xfs_rmap_item.c

@@ -385,7 +385,8 @@ STATIC void *
 xfs_rmap_update_create_intent(
 	struct xfs_trans		*tp,
 	struct list_head		*items,
-	unsigned int			count)
+	unsigned int			count,
+	bool				sort)
 {
 	struct xfs_mount		*mp = tp->t_mountp;
 	struct xfs_rui_log_item		*ruip = xfs_rui_init(mp, count);
@@ -394,6 +395,8 @@ xfs_rmap_update_create_intent(
 	ASSERT(count > 0);
 
 	xfs_trans_add_item(tp, &ruip->rui_item);
+	if (sort)
+		list_sort(mp, items, xfs_rmap_update_diff_items);
 	list_for_each_entry(rmap, items, ri_list)
 		xfs_rmap_update_log_item(tp, ruip, rmap);
 	return ruip;
@@ -466,7 +469,6 @@ xfs_rmap_update_cancel_item(
 
 const struct xfs_defer_op_type xfs_rmap_update_defer_type = {
 	.max_items	= XFS_RUI_MAX_FAST_EXTENTS,
-	.diff_items	= xfs_rmap_update_diff_items,
 	.create_intent	= xfs_rmap_update_create_intent,
 	.abort_intent	= xfs_rmap_update_abort_intent,
 	.create_done	= xfs_rmap_update_create_done,