ext3: Convert to private i_dquot field

CC: linux-ext4@vger.kernel.org
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/ext3/ext3.h

@@ -615,6 +615,10 @@ struct ext3_inode_info {
 	atomic_t i_sync_tid;
 	atomic_t i_datasync_tid;
 
+#ifdef CONFIG_QUOTA
+	struct dquot *i_dquot[MAXQUOTAS];
+#endif
+
 	struct inode vfs_inode;
 };
 

fs/ext3/super.c

@@ -485,6 +485,10 @@ static struct inode *ext3_alloc_inode(struct super_block *sb)
 	ei->vfs_inode.i_version = 1;
 	atomic_set(&ei->i_datasync_tid, 0);
 	atomic_set(&ei->i_sync_tid, 0);
+#ifdef CONFIG_QUOTA
+	memset(&ei->i_dquot, 0, sizeof(ei->i_dquot));
+#endif
+
 	return &ei->vfs_inode;
 }
 
@@ -764,6 +768,10 @@ static ssize_t ext3_quota_read(struct super_block *sb, int type, char *data,
 			       size_t len, loff_t off);
 static ssize_t ext3_quota_write(struct super_block *sb, int type,
 				const char *data, size_t len, loff_t off);
+static struct dquot **ext3_get_dquots(struct inode *inode)
+{
+	return EXT3_I(inode)->i_dquot;
+}
 
 static const struct dquot_operations ext3_quota_operations = {
 	.write_dquot	= ext3_write_dquot,
@@ -803,6 +811,7 @@ static const struct super_operations ext3_sops = {
 #ifdef CONFIG_QUOTA
 	.quota_read	= ext3_quota_read,
 	.quota_write	= ext3_quota_write,
+	.get_dquots	= ext3_get_dquots,
 #endif
 	.bdev_try_to_free_page = bdev_try_to_free_page,
 };
@@ -2001,6 +2010,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 #ifdef CONFIG_QUOTA
 	sb->s_qcop = &ext3_qctl_operations;
 	sb->dq_op = &ext3_quota_operations;
+	sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;
 #endif
 	memcpy(sb->s_uuid, es->s_uuid, sizeof(es->s_uuid));
 	INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */