ocfs2: Have the metadata lock use generic dlmglue functions
Fill in the ->check_downconvert and ->set_lvb callbacks with meta data
specific operations and switch ocfs2_unblock_meta() to call
ocfs2_generic_unblock_lock()
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index faa6f57..c8177d0 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -92,6 +92,10 @@
static int ocfs2_unblock_meta(struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl);
+static int ocfs2_check_meta_downconvert(struct ocfs2_lock_res *lockres,
+ int new_level);
+static void ocfs2_set_meta_lvb(struct ocfs2_lock_res *lockres);
+
static int ocfs2_unblock_data(struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl);
static int ocfs2_unblock_inode_lock(struct ocfs2_lock_res *lockres,
@@ -179,6 +183,8 @@
static struct ocfs2_lock_res_ops ocfs2_inode_meta_lops = {
.get_osb = ocfs2_get_inode_osb,
.unblock = ocfs2_unblock_meta,
+ .check_downconvert = ocfs2_check_meta_downconvert,
+ .set_lvb = ocfs2_set_meta_lvb,
.flags = LOCK_TYPE_REQUIRES_REFRESH|LOCK_TYPE_USES_LVB,
};
@@ -2822,6 +2828,29 @@
return status;
}
+static int ocfs2_check_meta_downconvert(struct ocfs2_lock_res *lockres,
+ int new_level)
+{
+ struct inode *inode = ocfs2_lock_res_inode(lockres);
+ int checkpointed = ocfs2_inode_fully_checkpointed(inode);
+
+ BUG_ON(new_level != LKM_NLMODE && new_level != LKM_PRMODE);
+ BUG_ON(lockres->l_level != LKM_EXMODE && !checkpointed);
+
+ if (checkpointed)
+ return 1;
+
+ ocfs2_start_checkpoint(OCFS2_SB(inode->i_sb));
+ return 0;
+}
+
+static void ocfs2_set_meta_lvb(struct ocfs2_lock_res *lockres)
+{
+ struct inode *inode = ocfs2_lock_res_inode(lockres);
+
+ __ocfs2_stuff_meta_lvb(inode);
+}
+
static int ocfs2_unblock_meta(struct ocfs2_lock_res *lockres,
struct ocfs2_unblock_ctl *ctl)
{
@@ -2835,7 +2864,8 @@
mlog(0, "unblock inode %llu\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno);
- status = ocfs2_do_unblock_meta(inode, &ctl->requeue);
+ status = ocfs2_generic_unblock_lock(OCFS2_SB(inode->i_sb),
+ lockres, ctl, NULL);
if (status < 0)
mlog_errno(status);