btrfs: pass the extent buffer for the btrfs_item_nr helpers

This is actually a change for extent tree v2, but it exists in
btrfs-progs but not in the kernel.  This makes it annoying to sync
accessors.h with btrfs-progs, and since this is the way I need it for
extent-tree v2 simply update these helpers to take the extent buffer in
order to make syncing possible now, and make the extent tree v2 stuff
easier moving forward.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 18 insertions, 17 deletions

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index e85b243be5a2..cdc112d3bab2 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -3033,13 +3033,13 @@ static noinline int __push_leaf_right(struct btrfs_path *path,
 		     BTRFS_LEAF_DATA_OFFSET + leaf_data_end(left),
 		     push_space);
 
-	memmove_extent_buffer(right, btrfs_item_nr_offset(push_items),
-			      btrfs_item_nr_offset(0),
+	memmove_extent_buffer(right, btrfs_item_nr_offset(right, push_items),
+			      btrfs_item_nr_offset(right, 0),
 			      right_nritems * sizeof(struct btrfs_item));
 
 	/* copy the items from left to right */
-	copy_extent_buffer(right, left, btrfs_item_nr_offset(0),
-		   btrfs_item_nr_offset(left_nritems - push_items),
+	copy_extent_buffer(right, left, btrfs_item_nr_offset(right, 0),
+		   btrfs_item_nr_offset(left, left_nritems - push_items),
 		   push_items * sizeof(struct btrfs_item));
 
 	/* update the item pointers */
@@ -3233,8 +3233,8 @@ static noinline int __push_leaf_left(struct btrfs_path *path, int data_size,
 
 	/* push data from right to left */
 	copy_extent_buffer(left, right,
-			   btrfs_item_nr_offset(btrfs_header_nritems(left)),
-			   btrfs_item_nr_offset(0),
+			   btrfs_item_nr_offset(left, btrfs_header_nritems(left)),
+			   btrfs_item_nr_offset(right, 0),
 			   push_items * sizeof(struct btrfs_item));
 
 	push_space = BTRFS_LEAF_DATA_SIZE(fs_info) -
@@ -3272,8 +3272,8 @@ static noinline int __push_leaf_left(struct btrfs_path *path, int data_size,
 				      BTRFS_LEAF_DATA_OFFSET +
 				      leaf_data_end(right), push_space);
 
-		memmove_extent_buffer(right, btrfs_item_nr_offset(0),
-			      btrfs_item_nr_offset(push_items),
+		memmove_extent_buffer(right, btrfs_item_nr_offset(right, 0),
+			      btrfs_item_nr_offset(left, push_items),
 			     (btrfs_header_nritems(right) - push_items) *
 			     sizeof(struct btrfs_item));
 	}
@@ -3407,8 +3407,8 @@ static noinline void copy_for_split(struct btrfs_trans_handle *trans,
 	btrfs_set_header_nritems(right, nritems);
 	data_copy_size = btrfs_item_data_end(l, mid) - leaf_data_end(l);
 
-	copy_extent_buffer(right, l, btrfs_item_nr_offset(0),
-			   btrfs_item_nr_offset(mid),
+	copy_extent_buffer(right, l, btrfs_item_nr_offset(right, 0),
+			   btrfs_item_nr_offset(l, mid),
 			   nritems * sizeof(struct btrfs_item));
 
 	copy_extent_buffer(right, l,
@@ -3784,8 +3784,8 @@ static noinline int split_item(struct btrfs_path *path,
 	nritems = btrfs_header_nritems(leaf);
 	if (slot != nritems) {
 		/* shift the items */
-		memmove_extent_buffer(leaf, btrfs_item_nr_offset(slot + 1),
-				btrfs_item_nr_offset(slot),
+		memmove_extent_buffer(leaf, btrfs_item_nr_offset(leaf, slot + 1),
+				btrfs_item_nr_offset(leaf, slot),
 				(nritems - slot) * sizeof(struct btrfs_item));
 	}
 
@@ -4077,9 +4077,10 @@ static void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *p
 						       ioff - batch->total_data_size);
 		}
 		/* shift the items */
-		memmove_extent_buffer(leaf, btrfs_item_nr_offset(slot + batch->nr),
-			      btrfs_item_nr_offset(slot),
-			      (nritems - slot) * sizeof(struct btrfs_item));
+		memmove_extent_buffer(leaf,
+				      btrfs_item_nr_offset(leaf, slot + batch->nr),
+				      btrfs_item_nr_offset(leaf, slot),
+				      (nritems - slot) * sizeof(struct btrfs_item));
 
 		/* shift the data */
 		memmove_extent_buffer(leaf, BTRFS_LEAF_DATA_OFFSET +
@@ -4333,8 +4334,8 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
 			btrfs_set_token_item_offset(&token, i, ioff + dsize);
 		}
 
-		memmove_extent_buffer(leaf, btrfs_item_nr_offset(slot),
-			      btrfs_item_nr_offset(slot + nr),
+		memmove_extent_buffer(leaf, btrfs_item_nr_offset(leaf, slot),
+			      btrfs_item_nr_offset(leaf, slot + nr),
 			      sizeof(struct btrfs_item) *
 			      (nritems - slot - nr));
 	}