In the Linux kernel, the following vulnerability has been resolved: ceph: fix deadlock or deadcode of misusing dget() The lock order is incorrect between denty and its parent, we should always make sure that the parent get the lock first. But since this deadcode is never used and the parent dir will always be set from the callers, let's just remove it.
https://git.kernel.org/stable/c/eb55ba8aa7fb7aad54f40fbf4d8dcdfdba0bebf6
https://git.kernel.org/stable/c/e016e358461b89b231626fcf78c5c38e35c44fd3
https://git.kernel.org/stable/c/b493ad718b1f0357394d2cdecbf00a44a36fa085
https://git.kernel.org/stable/c/a9c15d6e8aee074fae66c04d114f20b84274fcca
https://git.kernel.org/stable/c/7f2649c94264d00df6b6ac27161e9f4372a3450e
https://git.kernel.org/stable/c/76cb2aa3421fee4fde706dec41b1344bc0a9ad67
https://git.kernel.org/stable/c/6ab4fd508fad942f1f1ba940492f2735e078e980
https://git.kernel.org/stable/c/196b87e5c00ce021e164a5de0f0d04f4116a9160