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Commit 4b5829a8 authored by Miao Xie's avatar Miao Xie Committed by Chris Mason
Browse files

Btrfs: fix missing reserved space release in error path of delalloc reservation 



We forget to release the reserved space in the error path of delalloc
reservatiom, fix it.

Signed-off-by: default avatarMiao Xie <miaox@cn.fujitsu.com>
Signed-off-by: default avatarChris Mason <chris.mason@fusionio.com>
parent 543eabd5

fs/btrfs/extent-tree.c

+7 −0
Original line number Diff line number Diff line
@@ -4559,6 +4559,9 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) 
		ret = btrfs_qgroup_reserve(root, num_bytes +

					   nr_extents * root->leafsize);

		if (ret) {

			spin_lock(&BTRFS_I(inode)->lock);

			calc_csum_metadata_size(inode, num_bytes, 0);

			spin_unlock(&BTRFS_I(inode)->lock);

			mutex_unlock(&BTRFS_I(inode)->delalloc_mutex);

			return ret;

		}
@@ -4594,6 +4597,10 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) 
						      btrfs_ino(inode),

						      to_free, 0);

		}

		if (root->fs_info->quota_enabled) {

			btrfs_qgroup_free(root, num_bytes +

						nr_extents * root->leafsize);

		}

		mutex_unlock(&BTRFS_I(inode)->delalloc_mutex);

		return ret;

	}