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>
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@ -92,6 +92,10 @@ struct ocfs2_unblock_ctl {
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static int ocfs2_unblock_meta(struct ocfs2_lock_res *lockres,
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struct ocfs2_unblock_ctl *ctl);
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static int ocfs2_check_meta_downconvert(struct ocfs2_lock_res *lockres,
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int new_level);
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static void ocfs2_set_meta_lvb(struct ocfs2_lock_res *lockres);
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static int ocfs2_unblock_data(struct ocfs2_lock_res *lockres,
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struct ocfs2_unblock_ctl *ctl);
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static int ocfs2_unblock_inode_lock(struct ocfs2_lock_res *lockres,
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@ -179,6 +183,8 @@ static struct ocfs2_lock_res_ops ocfs2_inode_rw_lops = {
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static struct ocfs2_lock_res_ops ocfs2_inode_meta_lops = {
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.get_osb = ocfs2_get_inode_osb,
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.unblock = ocfs2_unblock_meta,
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.check_downconvert = ocfs2_check_meta_downconvert,
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.set_lvb = ocfs2_set_meta_lvb,
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.flags = LOCK_TYPE_REQUIRES_REFRESH|LOCK_TYPE_USES_LVB,
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};
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@ -2822,6 +2828,29 @@ static int ocfs2_unblock_inode_lock(struct ocfs2_lock_res *lockres,
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return status;
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}
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static int ocfs2_check_meta_downconvert(struct ocfs2_lock_res *lockres,
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int new_level)
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{
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struct inode *inode = ocfs2_lock_res_inode(lockres);
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int checkpointed = ocfs2_inode_fully_checkpointed(inode);
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BUG_ON(new_level != LKM_NLMODE && new_level != LKM_PRMODE);
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BUG_ON(lockres->l_level != LKM_EXMODE && !checkpointed);
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if (checkpointed)
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return 1;
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ocfs2_start_checkpoint(OCFS2_SB(inode->i_sb));
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return 0;
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}
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static void ocfs2_set_meta_lvb(struct ocfs2_lock_res *lockres)
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{
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struct inode *inode = ocfs2_lock_res_inode(lockres);
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__ocfs2_stuff_meta_lvb(inode);
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}
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static int ocfs2_unblock_meta(struct ocfs2_lock_res *lockres,
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struct ocfs2_unblock_ctl *ctl)
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{
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@ -2835,7 +2864,8 @@ static int ocfs2_unblock_meta(struct ocfs2_lock_res *lockres,
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mlog(0, "unblock inode %llu\n",
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(unsigned long long)OCFS2_I(inode)->ip_blkno);
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status = ocfs2_do_unblock_meta(inode, &ctl->requeue);
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status = ocfs2_generic_unblock_lock(OCFS2_SB(inode->i_sb),
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lockres, ctl, NULL);
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if (status < 0)
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mlog_errno(status);
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