From a4d8e918a8a5f2f574288976c604c3fbad314f7c Mon Sep 17 00:00:00 2001
From: yangsheng <yangsheng>
Date: Fri, 20 Jun 2008 05:46:48 +0000
Subject: [PATCH] Branch HEAD b=15593
i=shadow, johann
Force to remove SUID when the do_truncate() be called in 2.6.22 kernel.
---
lustre/llite/llite_lib.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/lustre/llite/llite_lib.c b/lustre/llite/llite_lib.c
index 1a82ddf4a1..76104a93cc 100644
--- a/lustre/llite/llite_lib.c
+++ b/lustre/llite/llite_lib.c
@@ -1529,9 +1529,19 @@ out:
int ll_setattr(struct dentry *de, struct iattr *attr)
{
+ int 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;
+ }
return ll_setattr_raw(de->d_inode, attr);
}
--
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