ocfs2: Convert to private i_dquot field

CC: Mark Fasheh <mfasheh@suse.com>
CC: Joel Becker <jlbec@evilplan.org>
CC: ocfs2-devel@oss.oracle.com
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/ocfs2/inode.h

@@ -80,6 +80,8 @@ struct ocfs2_inode_info
 	 */
 	tid_t i_sync_tid;
 	tid_t i_datasync_tid;
+
+	struct dquot *i_dquot[MAXQUOTAS];
 };
 
 /*

fs/ocfs2/super.c

@@ -143,6 +143,11 @@ static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend);
 static int ocfs2_enable_quotas(struct ocfs2_super *osb);
 static void ocfs2_disable_quotas(struct ocfs2_super *osb);
 
+static struct dquot **ocfs2_get_dquots(struct inode *inode)
+{
+	return OCFS2_I(inode)->i_dquot;
+}
+
 static const struct super_operations ocfs2_sops = {
 	.statfs		= ocfs2_statfs,
 	.alloc_inode	= ocfs2_alloc_inode,
@@ -155,6 +160,7 @@ static const struct super_operations ocfs2_sops = {
 	.show_options   = ocfs2_show_options,
 	.quota_read	= ocfs2_quota_read,
 	.quota_write	= ocfs2_quota_write,
+	.get_dquots	= ocfs2_get_dquots,
 };
 
 enum {
@@ -563,6 +569,7 @@ static struct inode *ocfs2_alloc_inode(struct super_block *sb)
 
 	oi->i_sync_tid = 0;
 	oi->i_datasync_tid = 0;
+	memset(&oi->i_dquot, 0, sizeof(oi->i_dquot));
 
 	jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode);
 	return &oi->vfs_inode;
@@ -2073,6 +2080,7 @@ static int ocfs2_initialize_super(struct super_block *sb,
 	sb->s_export_op = &ocfs2_export_ops;
 	sb->s_qcop = &ocfs2_quotactl_ops;
 	sb->dq_op = &ocfs2_quota_operations;
+	sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;
 	sb->s_xattr = ocfs2_xattr_handlers;
 	sb->s_time_gran = 1;
 	sb->s_flags |= MS_NOATIME;