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authorJoel Becker <joel.becker@oracle.com>2008-10-17 14:55:01 -0700
committerMark Fasheh <mfasheh@suse.com>2009-01-05 08:40:31 -0800
commitd6b32bbb3eae3fb787f1c33bf9f767ca1ddeb208 (patch)
treece38de666096f571f4b1754e898729cf2d9eb435 /fs/ocfs2/suballoc.c
parent684ef278377725d505aa23259ee673dab9b11851 (diff)
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>
Diffstat (limited to 'fs/ocfs2/suballoc.c')
-rw-r--r--fs/ocfs2/suballoc.c31
1 files changed, 30 insertions, 1 deletions
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 226fe21f260..78755766c32 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -35,6 +35,7 @@
#include "ocfs2.h"
#include "alloc.h"
+#include "blockcheck.h"
#include "dlmglue.h"
#include "inode.h"
#include "journal.h"
@@ -250,8 +251,18 @@ int ocfs2_check_group_descriptor(struct super_block *sb,
struct buffer_head *bh)
{
int rc;
+ struct ocfs2_group_desc *gd = (struct ocfs2_group_desc *)bh->b_data;
+
+ BUG_ON(!buffer_uptodate(bh));
- rc = ocfs2_validate_gd_self(sb, bh, 1);
+ /*
+ * 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, &gd->bg_check);
+ if (!rc)
+ rc = ocfs2_validate_gd_self(sb, bh, 1);
if (!rc)
rc = ocfs2_validate_gd_parent(sb, di, bh, 1);
@@ -261,9 +272,27 @@ int ocfs2_check_group_descriptor(struct super_block *sb,
static int ocfs2_validate_group_descriptor(struct super_block *sb,
struct buffer_head *bh)
{
+ int rc;
+ struct ocfs2_group_desc *gd = (struct ocfs2_group_desc *)bh->b_data;
+
mlog(0, "Validating group descriptor %llu\n",
(unsigned long long)bh->b_blocknr);
+ 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, &gd->bg_check);
+ if (rc)
+ return rc;
+
+ /*
+ * Errors after here are fatal.
+ */
+
return ocfs2_validate_gd_self(sb, bh, 0);
}