4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: "Yan, Zheng" <z...@redhat.com>
[ Upstream commit 8b8f53af1ed9df88a4c0fbfdf3db58f62060edf3 ]
In any case, d_splice_alias() does not drop reference of original
dentry.
Signed-off-by: "Yan, Zheng" <z...@redhat.com>
Reviewed-by: Jeff Layton <jlay...@redhat.com>
Signed-off-by: Ilya Dryomov <idryo...@gmail.com>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
fs/ceph/inode.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1077,6 +1077,7 @@ static struct dentry *splice_dentry(stru
if (IS_ERR(realdn)) {
pr_err("splice_dentry error %ld %p inode %p ino %llx.%llx\n",
PTR_ERR(realdn), dn, in, ceph_vinop(in));
+ dput(dn);
dn = realdn; /* note realdn contains the error */
goto out;
} else if (realdn) {
