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: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 98af837..e152809 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4559,6 +4559,9 @@
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 @@
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;
}