From: Mark Fasheh <mark.fasheh@oracle.com>
Date: Fri, 20 Jul 2007 19:02:14 +0000 (-0700)
Subject: ocfs2: check ia_size limits in setattr
X-Git-Tag: v2.6.23-rc3~11^2~5
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ce76fd30ce98cdaeb38dca0dfbb3fa6d2801c5ce;p=linux-2.6

ocfs2: check ia_size limits in setattr

We have to manually check the requested truncate size as the check in
vmtruncate() comes too late for Ocfs2.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
---

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index b1ae4c7541..4ffa715be0 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1028,6 +1028,11 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
 	}
 
 	if (size_change && attr->ia_size != i_size_read(inode)) {
+		if (attr->ia_size > sb->s_maxbytes) {
+			status = -EFBIG;
+			goto bail_unlock;
+		}
+
 		if (i_size_read(inode) > attr->ia_size)
 			status = ocfs2_truncate_file(inode, bh, attr->ia_size);
 		else