add missing cifs quota support part 1

fs/cifs/cifsfs.c

@@ -247,6 +247,108 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m)
 	return 0;
 }
 
+int cifs_xquota_set(struct super_block * sb, int quota_type, qid_t qid,
+		struct fs_disk_quota * pdquota)
+{
+	int xid;
+	int rc = 0;
+	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+	struct cifsTconInfo *pTcon;
+	
+	if(cifs_sb)
+		pTcon = cifs_sb->tcon;
+	else
+		return -EIO;
+
+
+	xid = GetXid();
+	if(pTcon)
+		rc = -EIO;
+	else {
+
+	}
+
+	FreeXid(xid);
+	return rc;
+}
+
+int cifs_xquota_get(struct super_block * sb, int quota_type, qid_t qid,
+                struct fs_disk_quota * pdquota)
+{
+	int xid;
+	int rc = 0;
+	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+	struct cifsTconInfo *pTcon;
+
+	if(cifs_sb)
+		pTcon = cifs_sb->tcon;
+	else
+		return -EIO;
+
+	xid = GetXid();
+	if(pTcon)
+		rc = -EIO;
+	else {
+
+	}
+
+	FreeXid(xid);
+	return rc;
+}
+
+int cifs_xstate_set(struct super_block * sb, unsigned int flags, int operation)
+{
+	int xid; 
+	int rc = 0;
+	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+	struct cifsTconInfo *pTcon;
+
+	if(cifs_sb)
+		pTcon = cifs_sb->tcon;
+	else
+		return -EIO;
+
+	xid = GetXid();
+	if(pTcon)
+		rc = -EIO;
+	else {
+
+	}
+
+	FreeXid(xid);
+	return rc;
+}
+
+int cifs_xstate_get(struct super_block * sb, struct fs_quota_stat *qstats)
+{
+	int xid;
+	int rc = 0;
+	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+	struct cifsTconInfo *pTcon;
+
+	if(cifs_sb)
+		pTcon = cifs_sb->tcon;
+	else
+		return -EIO;
+
+	xid = GetXid();
+	if(pTcon)
+		rc = -EIO;
+	else {
+
+	}
+
+	FreeXid(xid);
+	return rc;
+}
+
+static struct quotactl_ops cifs_quotactl_ops = {
+	.set_xquota	= cifs_xquota_set,
+	.get_xquota	= cifs_xquota_set,
+	.set_xstate	= cifs_xstate_set,
+	.get_xstate	= cifs_xstate_get,
+};
+
 struct super_operations cifs_super_ops = {
 	.read_inode = cifs_read_inode,
 	.put_super = cifs_put_super,

fs/cifs/cifspdu.h

@@ -68,6 +68,8 @@
 #define NT_TRANSACT_NOTIFY_CHANGE     0x04
 #define NT_TRANSACT_RENAME            0x05
 #define NT_TRANSACT_QUERY_SECURITY_DESC 0x06
+#define NT_TRANSACT_GET_USER_QUOTA    0x07
+#define NT_TRANSACT_SET_USER_QUOTA    0x08
 
 #define MAX_CIFS_HDR_SIZE 256	/* chained NTCreateXReadX will probably be biggest */
 
@@ -878,6 +880,21 @@ struct reparse_data {
 	char	LinkNamesBuf[1];
 };
 
+struct cifs_quota_data {
+	__u32	rsrvd1;  /* 0 */
+	__u32	sid_size;
+	__u64	rsrvd2;  /* 0 */
+	__u64	space_used;
+	__u64	soft_limit;
+	__u64	hard_limit;
+	char	sid[1];  /* variable size? */
+};
+
+/* quota sub commands */
+#define QUOTA_LIST_CONTINUE	    0
+#define QUOTA_LIST_START	0x100
+#define QUOTA_FOR_SID		0x101
+
 typedef union smb_com_transaction2 {
 	struct {
 		struct smb_hdr hdr;	/* wct = 14+ */