Commit 7d8f9876 authored Dec 22, 2010 by Tao Ma Committed by Joel Becker Dec 22, 2010

ocfs2: Fix system inodes cache overflow.

When we store system inodes cache in ocfs2_super,
we use a array for global system inodes. But unfortunately,
the range is calculated wrongly which makes it overflow and
pollute ocfs2_super->local_system_inodes.
This patch fix it by setting the range properly.

The corresponding bug is ossbug1303.
http://oss.oracle.com/bugzilla/show_bug.cgi?id=1303



Cc: stable@kernel.org
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

parent 8ac33dc8

fs/ocfs2/ocfs2_fs.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -350,7 +350,7 @@ enum {
		#define OCFS2_LAST_LOCAL_SYSTEM_INODE LOCAL_GROUP_QUOTA_SYSTEM_INODE
		NUM_SYSTEM_INODES
		};
		#define NUM_GLOBAL_SYSTEM_INODES OCFS2_LAST_GLOBAL_SYSTEM_INODE
		#define NUM_GLOBAL_SYSTEM_INODES OCFS2_FIRST_LOCAL_SYSTEM_INODE
		#define NUM_LOCAL_SYSTEM_INODES \
		(NUM_SYSTEM_INODES - OCFS2_FIRST_LOCAL_SYSTEM_INODE)