On Fri, Dec 02, 2016 at 12:07:21AM -0500, je...@suse.com wrote:
> From: Jeff Mahoney <je...@suse.com>
>
> There are 11 functions that accept a root parameter and immediately
> overwrite it. We can pass those an fs_info pointer instead.
>
> Signed-off-by: Jeff Mahoney <je...@suse.com>
> ---
> fs/btrfs/ctree.h | 4 ++--
> fs/btrfs/disk-io.c | 4 ++--
> fs/btrfs/extent-tree.c | 17 +++++++-------
> fs/btrfs/file-item.c | 5 ++---
> fs/btrfs/free-space-cache.c | 5 ++---
> fs/btrfs/free-space-cache.h | 2 +-
> fs/btrfs/transaction.c | 9 ++++----
> fs/btrfs/tree-log.c | 6 ++---
> fs/btrfs/volumes.c | 55
> +++++++++++++++++++++------------------------
> fs/btrfs/volumes.h | 4 ++--
> 10 files changed, 52 insertions(+), 59 deletions(-)
>
[snip]
> int btrfs_remove_chunk(struct btrfs_trans_handle *trans,
> - struct btrfs_root *root, u64 chunk_offset)
> + struct btrfs_fs_info *fs_info, u64 chunk_offset)
> {
> + struct btrfs_root *root = fs_info->chunk_root;
> struct extent_map_tree *em_tree;
> struct extent_map *em;
> struct btrfs_root *extent_root = root->fs_info->extent_root;
> @@ -2812,8 +2811,7 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans,
> struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices;
>
> /* Just in case */
> - root = root->fs_info->chunk_root;
> - em_tree = &root->fs_info->mapping_tree.map_tree;
> + em_tree = &fs_info->mapping_tree.map_tree;
I think this "Just in case" comment was referring to the reassignment of
the root, so it's just confusing now.
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