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authorJeff Mahoney <jeffm@suse.com>2016-06-20 17:23:41 -0400
committerDavid Sterba <dsterba@suse.com>2016-07-26 13:54:26 +0200
commit64b63580728ef19137d35363a1c28794b70ad416 (patch)
treef78944d4590ee07bbdea3559712adc4973946d3a
parent05f9a780129c81dfd70ae827a9abb15c7e6321a8 (diff)
downloadop-kernel-dev-64b63580728ef19137d35363a1c28794b70ad416.zip
op-kernel-dev-64b63580728ef19137d35363a1c28794b70ad416.tar.gz
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>
-rw-r--r--fs/btrfs/extent-tree.c6
-rw-r--r--fs/btrfs/qgroup.c2
-rw-r--r--fs/btrfs/transaction.c1
-rw-r--r--fs/btrfs/transaction.h1
4 files changed, 6 insertions, 4 deletions
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 @@ out:
*/
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_metadata(struct btrfs_trans_handle *trans,
*/
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 @@ static int record_one_subtree_extent(struct btrfs_trans_handle *trans,
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 3a83631..93ee1c1 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -2196,7 +2196,7 @@ void assert_qgroups_uptodate(struct btrfs_trans_handle *trans)
{
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 @@ again:
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 @@ struct btrfs_trans_handle {
* 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;
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