btrfs: add btrfs_trans_handle->fs_info pointer
btrfs_trans_handle->root is documented as for use for confirming
that the root passed in to start the transaction is the same as the
one ending it. It's used in several places when an fs_info pointer
is needed, so let's just add an fs_info pointer directly. Eventually,
the root pointer can be removed.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 44549d7..c6c505e 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4589,7 +4589,7 @@
*/
if (trans->can_flush_pending_bgs &&
trans->chunk_bytes_reserved >= (u64)SZ_2M) {
- btrfs_create_pending_block_groups(trans, trans->root);
+ btrfs_create_pending_block_groups(trans, extent_root);
btrfs_trans_release_chunk_metadata(trans);
}
return ret;
@@ -5730,7 +5730,7 @@
*/
void btrfs_trans_release_chunk_metadata(struct btrfs_trans_handle *trans)
{
- struct btrfs_fs_info *fs_info = trans->root->fs_info;
+ struct btrfs_fs_info *fs_info = trans->fs_info;
if (!trans->chunk_bytes_reserved)
return;
@@ -8543,7 +8543,7 @@
delayed_refs = &trans->transaction->delayed_refs;
spin_lock(&delayed_refs->lock);
- if (btrfs_qgroup_insert_dirty_extent(trans->root->fs_info,
+ if (btrfs_qgroup_insert_dirty_extent(trans->fs_info,
delayed_refs, qrecord))
kfree(qrecord);
spin_unlock(&delayed_refs->lock);
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 3a83631c..93ee1c1 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -2196,7 +2196,7 @@
{
if (list_empty(&trans->qgroup_ref_list) && !trans->delayed_ref_elem.seq)
return;
- btrfs_err(trans->root->fs_info,
+ btrfs_err(trans->fs_info,
"qgroups not uptodate in trans handle %p: list is%s empty, "
"seq is %#x.%x",
trans, list_empty(&trans->qgroup_ref_list) ? "" : " not",
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index d986447..41e14c6 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -561,6 +561,7 @@
h->transaction = cur_trans;
h->root = root;
h->use_count = 1;
+ h->fs_info = root->fs_info;
h->type = type;
h->can_flush_pending_bgs = true;
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index c5abee4..efb1226 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -128,6 +128,7 @@
* Subvolume quota depends on this
*/
struct btrfs_root *root;
+ struct btrfs_fs_info *fs_info;
struct seq_list delayed_ref_elem;
struct list_head qgroup_ref_list;
struct list_head new_bgs;