[PATCH 3/6] btrfs: remove fs_info from btrfs_check_space_for_delayed_refs

[Lu Fengqi]

It can be referenced from the transaction handle.

Signed-off-by: Lu Fengqi <lufq.f...@cn.fujitsu.com>
---
 fs/btrfs/ctree.h       | 3 +--
 fs/btrfs/extent-tree.c | 6 +++---
 fs/btrfs/inode.c       | 2 +-
 fs/btrfs/transaction.c | 2 +-
 4 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 15c659f23411..4002c9fd924b 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2600,8 +2600,7 @@ static inline u64 btrfs_calc_trunc_metadata_size(struct 
btrfs_fs_info *fs_info,
 
 int btrfs_should_throttle_delayed_refs(struct btrfs_trans_handle *trans,
                                       struct btrfs_fs_info *fs_info);
-int btrfs_check_space_for_delayed_refs(struct btrfs_trans_handle *trans,
-                                      struct btrfs_fs_info *fs_info);
+int btrfs_check_space_for_delayed_refs(struct btrfs_trans_handle *trans);
 void btrfs_dec_block_group_reservations(struct btrfs_fs_info *fs_info,
                                         const u64 start);
 void btrfs_wait_block_group_reservations(struct btrfs_block_group_cache *bg);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 77156bd2a9a7..831dc2ac1942 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2789,9 +2789,9 @@ u64 btrfs_csum_bytes_to_leaves(struct btrfs_fs_info 
*fs_info, u64 csum_bytes)
        return num_csums;
 }
 
-int btrfs_check_space_for_delayed_refs(struct btrfs_trans_handle *trans,
-                                      struct btrfs_fs_info *fs_info)
+int btrfs_check_space_for_delayed_refs(struct btrfs_trans_handle *trans)
 {
+       struct btrfs_fs_info *fs_info = trans->fs_info;
        struct btrfs_block_rsv *global_rsv;
        u64 num_heads = trans->transaction->delayed_refs.num_heads_ready;
        u64 csum_bytes = trans->transaction->delayed_refs.pending_csums;
@@ -2842,7 +2842,7 @@ int btrfs_should_throttle_delayed_refs(struct 
btrfs_trans_handle *trans,
        if (val >= NSEC_PER_SEC / 2)
                return 2;
 
-       return btrfs_check_space_for_delayed_refs(trans, fs_info);
+       return btrfs_check_space_for_delayed_refs(trans);
 }
 
 struct async_delayed_refs {
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 6c476dc81b8e..6a5557e8909d 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5319,7 +5319,7 @@ static struct btrfs_trans_handle 
*evict_refill_and_join(struct btrfs_root *root,
                 * Try to steal from the global reserve if there is space for
                 * it.
                 */
-               if (!btrfs_check_space_for_delayed_refs(trans, fs_info) &&
+               if (!btrfs_check_space_for_delayed_refs(trans) &&
                    !btrfs_block_rsv_migrate(global_rsv, rsv, rsv->size, false))
                        return trans;
 
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index e7f618b17b07..c5015458c5c8 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -760,7 +760,7 @@ static int should_end_transaction(struct btrfs_trans_handle 
*trans)
 {
        struct btrfs_fs_info *fs_info = trans->fs_info;
 
-       if (btrfs_check_space_for_delayed_refs(trans, fs_info))
+       if (btrfs_check_space_for_delayed_refs(trans))
                return 1;
 
        return !!btrfs_block_rsv_check(&fs_info->global_block_rsv, 5);
-- 
2.19.1