The following functions are just using @root to reach fs_info:
- exclude_super_stripes
- free_excluded_extents
- add_excluded_extent

Refactor them to use fs_info directly.

Signed-off-by: Qu Wenruo <w...@suse.com>
Reviewed-by: Johannes Thumshirn <jthumsh...@suse.de>
---
 check/main.c  |  4 ++--
 ctree.h       |  4 ++--
 extent-tree.c | 20 ++++++++++----------
 3 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/check/main.c b/check/main.c
index c2d0f3949c5e..94ffab46cb70 100644
--- a/check/main.c
+++ b/check/main.c
@@ -5552,7 +5552,7 @@ static int check_space_cache(struct btrfs_root *root)
                }
 
                if (btrfs_fs_compat_ro(root->fs_info, FREE_SPACE_TREE)) {
-                       ret = exclude_super_stripes(root, cache);
+                       ret = exclude_super_stripes(root->fs_info, cache);
                        if (ret) {
                                errno = -ret;
                                fprintf(stderr,
@@ -5561,7 +5561,7 @@ static int check_space_cache(struct btrfs_root *root)
                                continue;
                        }
                        ret = load_free_space_tree(root->fs_info, cache);
-                       free_excluded_extents(root, cache);
+                       free_excluded_extents(root->fs_info, cache);
                        if (ret < 0) {
                                errno = -ret;
                                fprintf(stderr,
diff --git a/ctree.h b/ctree.h
index 0d12563b7261..8c7b3cb40151 100644
--- a/ctree.h
+++ b/ctree.h
@@ -2568,9 +2568,9 @@ int btrfs_record_file_extent(struct btrfs_trans_handle 
*trans,
                              u64 num_bytes);
 int btrfs_free_block_group(struct btrfs_trans_handle *trans,
                           struct btrfs_fs_info *fs_info, u64 bytenr, u64 len);
-void free_excluded_extents(struct btrfs_root *root,
+void free_excluded_extents(struct btrfs_fs_info *fs_info,
                           struct btrfs_block_group_cache *cache);
-int exclude_super_stripes(struct btrfs_root *root,
+int exclude_super_stripes(struct btrfs_fs_info *fs_info,
                          struct btrfs_block_group_cache *cache);
 u64 add_new_free_space(struct btrfs_block_group_cache *block_group,
                       struct btrfs_fs_info *info, u64 start, u64 end);
diff --git a/extent-tree.c b/extent-tree.c
index 932af2c644bd..19d1ea0df570 100644
--- a/extent-tree.c
+++ b/extent-tree.c
@@ -2716,7 +2716,7 @@ int btrfs_read_block_groups(struct btrfs_root *root)
                if (btrfs_chunk_readonly(info, cache->key.objectid))
                        cache->ro = 1;
 
-               exclude_super_stripes(root, cache);
+               exclude_super_stripes(info, cache);
 
                ret = update_space_info(info, cache->flags, found_key.offset,
                                        btrfs_block_group_used(&cache->item),
@@ -2760,7 +2760,7 @@ btrfs_add_block_group(struct btrfs_fs_info *fs_info, u64 
bytes_used, u64 type,
        cache->flags = type;
        btrfs_set_block_group_flags(&cache->item, type);
 
-       exclude_super_stripes(fs_info->extent_root, cache);
+       exclude_super_stripes(fs_info, cache);
        ret = update_space_info(fs_info, cache->flags, size, bytes_used,
                                &cache->space_info);
        BUG_ON(ret);
@@ -3551,16 +3551,16 @@ int btrfs_record_file_extent(struct btrfs_trans_handle 
*trans,
 }
 
 
-static int add_excluded_extent(struct btrfs_root *root,
+static int add_excluded_extent(struct btrfs_fs_info *fs_info,
                               u64 start, u64 num_bytes)
 {
        u64 end = start + num_bytes - 1;
-       set_extent_bits(&root->fs_info->pinned_extents,
+       set_extent_bits(&fs_info->pinned_extents,
                        start, end, EXTENT_UPTODATE);
        return 0;
 }
 
-void free_excluded_extents(struct btrfs_root *root,
+void free_excluded_extents(struct btrfs_fs_info *fs_info,
                           struct btrfs_block_group_cache *cache)
 {
        u64 start, end;
@@ -3568,11 +3568,11 @@ void free_excluded_extents(struct btrfs_root *root,
        start = cache->key.objectid;
        end = start + cache->key.offset - 1;
 
-       clear_extent_bits(&root->fs_info->pinned_extents,
+       clear_extent_bits(&fs_info->pinned_extents,
                          start, end, EXTENT_UPTODATE);
 }
 
-int exclude_super_stripes(struct btrfs_root *root,
+int exclude_super_stripes(struct btrfs_fs_info *fs_info,
                          struct btrfs_block_group_cache *cache)
 {
        u64 bytenr;
@@ -3583,7 +3583,7 @@ int exclude_super_stripes(struct btrfs_root *root,
        if (cache->key.objectid < BTRFS_SUPER_INFO_OFFSET) {
                stripe_len = BTRFS_SUPER_INFO_OFFSET - cache->key.objectid;
                cache->bytes_super += stripe_len;
-               ret = add_excluded_extent(root, cache->key.objectid,
+               ret = add_excluded_extent(fs_info, cache->key.objectid,
                                          stripe_len);
                if (ret)
                        return ret;
@@ -3591,7 +3591,7 @@ int exclude_super_stripes(struct btrfs_root *root,
 
        for (i = 0; i < BTRFS_SUPER_MIRROR_MAX; i++) {
                bytenr = btrfs_sb_offset(i);
-               ret = btrfs_rmap_block(root->fs_info,
+               ret = btrfs_rmap_block(fs_info,
                                       cache->key.objectid, bytenr,
                                       &logical, &nr, &stripe_len);
                if (ret)
@@ -3618,7 +3618,7 @@ int exclude_super_stripes(struct btrfs_root *root,
                        }
 
                        cache->bytes_super += len;
-                       ret = add_excluded_extent(root, start, len);
+                       ret = add_excluded_extent(fs_info, start, len);
                        if (ret) {
                                kfree(logical);
                                return ret;
-- 
2.23.0

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