ocfs2: block read meta ecc.
Add block check calls to the read_block validate functions. This is the
almost all of the read-side checking of metaecc. xattr buckets are not checked
yet. Writes are also unchecked, and so a read-write mount will quickly fail.
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 288512c..9370b65 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -38,6 +38,7 @@
#include "ocfs2.h"
#include "alloc.h"
+#include "blockcheck.h"
#include "dlmglue.h"
#include "extent_map.h"
#include "file.h"
@@ -1262,7 +1263,7 @@
int ocfs2_validate_inode_block(struct super_block *sb,
struct buffer_head *bh)
{
- int rc = -EINVAL;
+ int rc;
struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data;
mlog(0, "Validating dinode %llu\n",
@@ -1270,6 +1271,21 @@
BUG_ON(!buffer_uptodate(bh));
+ /*
+ * If the ecc fails, we return the error but otherwise
+ * leave the filesystem running. We know any error is
+ * local to this block.
+ */
+ rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &di->i_check);
+ if (rc)
+ goto bail;
+
+ /*
+ * Errors after here are fatal.
+ */
+
+ rc = -EINVAL;
+
if (!OCFS2_IS_VALID_DINODE(di)) {
ocfs2_error(sb, "Invalid dinode #%llu: signature = %.*s\n",
(unsigned long long)bh->b_blocknr, 7,