From c812d91b3672349263b8b7b8930ec48194272056 Mon Sep 17 00:00:00 2001
From: yangsheng <yangsheng>
Date: Sat, 24 Jan 2009 18:11:17 +0000
Subject: [PATCH] Branch b1_8 b=15593 i=nikita, shadow

Force to remove the suid in interop environment.
---
 lustre/llite/llite_lib.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/lustre/llite/llite_lib.c b/lustre/llite/llite_lib.c
index 26ce33e..8c1de03 100644
--- a/lustre/llite/llite_lib.c
+++ b/lustre/llite/llite_lib.c
@@ -1733,20 +1733,27 @@ int ll_setattr_raw(struct inode *inode, struct iattr *attr)
 
 int ll_setattr(struct dentry *de, struct iattr *attr)
 {
-        int mode;
+        int mode = de->d_inode->i_mode;
 
         if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) ==
             (ATTR_CTIME|ATTR_SIZE|ATTR_MODE))
                 attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
         if ((attr->ia_valid & (ATTR_MODE|ATTR_FORCE|ATTR_SIZE)) ==
             (ATTR_SIZE|ATTR_MODE)) {
-                mode = de->d_inode->i_mode;
                 if (((mode & S_ISUID) && (!(attr->ia_mode & S_ISUID))) ||
                     ((mode & S_ISGID) && (mode & S_IXGRP) &&
                     (!(attr->ia_mode & S_ISGID))))
                         attr->ia_valid |= ATTR_FORCE;
         }
 
+        if ((mode & S_ISUID) && S_ISREG(mode) &&
+            !(attr->ia_mode & S_ISUID))
+                attr->ia_valid |= ATTR_KILL_SUID;
+
+        if (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
+            S_ISREG(mode) && !(attr->ia_mode & S_ISGID))
+                attr->ia_valid |= ATTR_KILL_SGID;
+
         return ll_setattr_raw(de->d_inode, attr);
 }
 
-- 
1.8.3.1