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| author | Joel Becker <joel.becker@oracle.com> | 2008-10-17 23:55:01 +0200 |
|---|---|---|
| committer | Mark Fasheh <mfasheh@suse.com> | 2009-01-05 17:40:31 +0100 |
| commit | d6b32bbb3eae3fb787f1c33bf9f767ca1ddeb208 (patch) | |
| tree | ce38de666096f571f4b1754e898729cf2d9eb435 /fs/ocfs2/quota_global.c | |
| parent | ocfs2: Add a validation hook for quota block reads. (diff) | |
| download | linux-d6b32bbb3eae3fb787f1c33bf9f767ca1ddeb208.tar.xz linux-d6b32bbb3eae3fb787f1c33bf9f767ca1ddeb208.zip | |
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/quota_global.c')
| -rw-r--r-- | fs/ocfs2/quota_global.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c index 7dbcfd7f65e6..a0b8b14cca8f 100644 --- a/fs/ocfs2/quota_global.c +++ b/fs/ocfs2/quota_global.c @@ -16,6 +16,7 @@ #include "ocfs2_fs.h" #include "ocfs2.h" #include "alloc.h" +#include "blockcheck.h" #include "inode.h" #include "journal.h" #include "file.h" @@ -90,12 +91,20 @@ struct qtree_fmt_operations ocfs2_global_ops = { static int ocfs2_validate_quota_block(struct super_block *sb, struct buffer_head *bh) { - struct ocfs2_disk_dqtrailer *dqt = ocfs2_dq_trailer(sb, bh->b_data); + struct ocfs2_disk_dqtrailer *dqt = + ocfs2_block_dqtrailer(sb->s_blocksize, bh->b_data); mlog(0, "Validating quota block %llu\n", (unsigned long long)bh->b_blocknr); - return 0; + 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. + */ + return ocfs2_validate_meta_ecc(sb, bh->b_data, &dqt->dq_check); } int ocfs2_read_quota_block(struct inode *inode, u64 v_block, |