From: Omar Sandoval <osandov@xxxxxx>
btrfs_link() calls btrfs_orphan_del() if it's linking an O_TMPFILE but
it doesn't reserve space to do so. Even before the removal of the
orphan_block_rsv it wasn't using it.
Fixes: ef3b9af50bfa ("Btrfs: implement inode_operations callback tmpfile")
Signed-off-by: Omar Sandoval <osandov@xxxxxx>
---
fs/btrfs/inode.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 88b89a48b66f..2a610a8d30c4 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6535,8 +6535,9 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
* 2 items for inode and inode ref
* 2 items for dir items
* 1 item for parent inode
+ * 1 item for orphan item deletion if O_TMPFILE
*/
- trans = btrfs_start_transaction(root, 5);
+ trans = btrfs_start_transaction(root, inode->i_nlink ? 5 : 6);
if (IS_ERR(trans)) {
err = PTR_ERR(trans);
trans = NULL;
--
2.17.0
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