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-rw-r--r--fs/btrfs/delayed-inode.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index 06ec8ab6d9ba..a8d492dbd3e7 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -556,6 +556,12 @@ static int btrfs_delayed_item_reserve_metadata(struct btrfs_trans_handle *trans,
dst_rsv = &fs_info->delayed_block_rsv;
num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1);
+
+ /*
+ * Here we migrate space rsv from transaction rsv, since have already
+ * reserved space when starting a transaction. So no need to reserve
+ * qgroup space here.
+ */
ret = btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes, 1);
if (!ret) {
trace_btrfs_space_reservation(fs_info, "delayed_item",
@@ -577,7 +583,10 @@ static void btrfs_delayed_item_release_metadata(struct btrfs_root *root,
return;
rsv = &fs_info->delayed_block_rsv;
- btrfs_qgroup_convert_reserved_meta(root, item->bytes_reserved);
+ /*
+ * Check btrfs_delayed_item_reserve_metadata() to see why we don't need
+ * to release/reserve qgroup space.
+ */
trace_btrfs_space_reservation(fs_info, "delayed_item",
item->key.objectid, item->bytes_reserved,
0);
@@ -602,9 +611,6 @@ static int btrfs_delayed_inode_reserve_metadata(
num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1);
- ret = btrfs_qgroup_reserve_meta_prealloc(root, num_bytes, true);
- if (ret < 0)
- return ret;
/*
* btrfs_dirty_inode will update the inode under btrfs_join_transaction
* which doesn't reserve space for speed. This is a problem since we
@@ -616,6 +622,10 @@ static int btrfs_delayed_inode_reserve_metadata(
*/
if (!src_rsv || (!trans->bytes_reserved &&
src_rsv->type != BTRFS_BLOCK_RSV_DELALLOC)) {
+ ret = btrfs_qgroup_reserve_meta_prealloc(root,
+ fs_info->nodesize, true);
+ if (ret < 0)
+ return ret;
ret = btrfs_block_rsv_add(root, dst_rsv, num_bytes,
BTRFS_RESERVE_NO_FLUSH);
/*
@@ -634,6 +644,8 @@ static int btrfs_delayed_inode_reserve_metadata(
"delayed_inode",
btrfs_ino(inode),
num_bytes, 1);
+ } else {
+ btrfs_qgroup_free_meta_prealloc(root, fs_info->nodesize);
}
return ret;
}