From fb870f6cdd72a1f143d9d25ab864e474fed65616 Mon Sep 17 00:00:00 2001
From: Filipe Manana <fdmanana@suse.com>
Date: Tue, 8 Sep 2020 11:27:21 +0100
Subject: btrfs: remove item_size member of struct btrfs_clone_extent_info

The value of item_size of struct btrfs_clone_extent_info is always set to
the size of a non-inline file extent item, and in fact the infrastructure
that uses this structure (btrfs_punch_hole_range()) does not work with
inline file extents at all (and it is not supposed to).

So just remove that field from the structure and use directly
sizeof(struct btrfs_file_extent_item) instead. Also assert that the
file extent type is not inline at btrfs_insert_clone_extent().

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---
 fs/btrfs/file.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'fs/btrfs/file.c')

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 73827c9c7a70..28794a98778a 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2596,15 +2596,16 @@ static int btrfs_insert_clone_extent(struct btrfs_trans_handle *trans,
 	key.type = BTRFS_EXTENT_DATA_KEY;
 	key.offset = clone_info->file_offset;
 	ret = btrfs_insert_empty_item(trans, root, path, &key,
-				      clone_info->item_size);
+				      sizeof(struct btrfs_file_extent_item));
 	if (ret)
 		return ret;
 	leaf = path->nodes[0];
 	slot = path->slots[0];
 	write_extent_buffer(leaf, clone_info->extent_buf,
 			    btrfs_item_ptr_offset(leaf, slot),
-			    clone_info->item_size);
+			    sizeof(struct btrfs_file_extent_item));
 	extent = btrfs_item_ptr(leaf, slot, struct btrfs_file_extent_item);
+	ASSERT(btrfs_file_extent_type(leaf, extent) != BTRFS_FILE_EXTENT_INLINE);
 	btrfs_set_file_extent_offset(leaf, extent, clone_info->data_offset);
 	btrfs_set_file_extent_num_bytes(leaf, extent, clone_len);
 	if (clone_info->is_new_extent)
-- 
cgit