From: "Yan, Zheng" <zyan@redhat.com>
Date: Tue, 19 Jun 2018 18:20:34 +0800
Subject: ceph: fix dentry leak in splice_dentry()
Git-commit: 8b8f53af1ed9df88a4c0fbfdf3db58f62060edf3
Patch-mainline: v4.18-rc3
References: bsc#1098236
In any case, d_splice_alias() does not drop reference of original
dentry.
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Acked-by: Luis Henriques <lhenriques@suse.com>
---
fs/ceph/inode.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1123,6 +1123,7 @@ 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) {