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Subject[PATCH 04/35] ocfs2: Add a validation hook for quota block reads.
Date
From: Joel Becker <joel.becker@oracle.com>

Add a currently-returns-success hook for quota block reads. We'll be
adding checks to this.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
---
fs/ocfs2/quota_global.c | 14 +++++++++++++-
1 files changed, 13 insertions(+), 1 deletions(-)
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index 4b38a2e..5b05f94 100644
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -85,13 +85,25 @@ struct qtree_fmt_operations ocfs2_global_ops = {
.is_id = ocfs2_global_is_id,
};

+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);
+
+ mlog(0, "Validating quota block %llu\n",
+ (unsigned long long)bh->b_blocknr);
+
+ return 0;
+}
+
int ocfs2_read_quota_block(struct inode *inode, u64 v_block,
struct buffer_head **bh)
{
int rc = 0;
struct buffer_head *tmp = *bh;

- rc = ocfs2_read_virt_blocks(inode, v_block, 1, &tmp, 0, NULL);
+ rc = ocfs2_read_virt_blocks(inode, v_block, 1, &tmp, 0,
+ ocfs2_validate_quota_block);
if (rc)
mlog_errno(rc);

--
1.5.6


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