LU-17453 llite: use dget_parent to access dentry.d_parent

[fs/lustre-release.git] / lustre / llite / xattr.c

diff --git a/lustre/llite/xattr.c b/lustre/llite/xattr.c
index 500dc66..9839128 100644 (file)
--- a/lustre/llite/xattr.c
+++ b/lustre/llite/xattr.c
@@ -714,13 +714,15 @@ ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size)
                 */
                if (xh && xh->flags == XATTR_TRUSTED_T &&
                    strcmp(xattr_name, XATTR_NAME_PROJID) == 0) {
-                       struct inode *dir = d_inode(dentry->d_parent);
+                       struct dentry *parent = dget_parent(dentry);
+                       struct inode *dir = d_inode(parent);
 
                        if ((ll_i2info(inode)->lli_projid ==
                             ll_i2info(dir)->lli_projid) &&
                            test_bit(LLIF_PROJECT_INHERIT,
                                     &ll_i2info(dir)->lli_flags))
                                hide_xattr = true;
+                       dput(parent);
                } else if (xh && xh->flags == XATTR_SECURITY_T &&
                           strcmp(xattr_name, "security.c") == 0) {
                        /* Listing xattrs should not expose encryption