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-rw-r--r--fs/btrfs/inode.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 6dd6e50d143a..57c3129ee2a2 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5642,6 +5642,13 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
}
/*
+ * O_TMPFILE, set link count to 0, so that after this point,
+ * we fill in an inode item with the correct link count.
+ */
+ if (!name)
+ set_nlink(inode, 0);
+
+ /*
* we have to initialize this early, so we can reclaim the inode
* number if we fail afterwards in this function.
*/
@@ -9007,6 +9014,14 @@ static int btrfs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
if (ret)
goto out;
+ /*
+ * We set number of links to 0 in btrfs_new_inode(), and here we set
+ * it to 1 because d_tmpfile() will issue a warning if the count is 0,
+ * through:
+ *
+ * d_tmpfile() -> inode_dec_link_count() -> drop_nlink()
+ */
+ set_nlink(inode, 1);
d_tmpfile(dentry, inode);
mark_inode_dirty(inode);