diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 024402438bd1..ab064c84b092 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1553,68 +1553,70 @@ static void zram_debugfs_destroy(void)
 	debugfs_remove_recursive(zram_debugfs_root);
 }
 
-static ssize_t read_block_state(struct file *file, char __user *buf,
-				size_t count, loff_t *ppos)
+static void *zram_block_state_start(struct seq_file *seq, loff_t *pos)
 {
-	char *kbuf;
-	unsigned long index;
-	ssize_t written = 0;
-	struct zram *zram = file->private_data;
+	struct zram *zram = seq->private;
 	unsigned long nr_pages;
 
-	kbuf = kvmalloc(count, GFP_KERNEL);
-	if (!kbuf)
-		return -ENOMEM;
-
-	guard(rwsem_read)(&zram->dev_lock);
-	if (!init_done(zram)) {
-		kvfree(kbuf);
-		return -EINVAL;
-	}
+	down_read(&zram->dev_lock);
+	if (!init_done(zram))
+		return ERR_PTR(-EINVAL);
 
 	nr_pages = zram->disksize >> PAGE_SHIFT;
+	if (*pos >= nr_pages)
+		return NULL;
 
-	for (index = *ppos; index < nr_pages; index++) {
-		int copied;
-
-		slot_lock(zram, index);
-		if (!slot_allocated(zram, index))
-			goto next;
-
-		copied = snprintf(kbuf + written, count,
-			"%12lu %12u.%06d %c%c%c%c%c%c\n",
-			index, zram->table[index].attr.ac_time, 0,
-			test_slot_flag(zram, index, ZRAM_SAME) ? 's' : '.',
-			test_slot_flag(zram, index, ZRAM_WB) ? 'w' : '.',
-			test_slot_flag(zram, index, ZRAM_HUGE) ? 'h' : '.',
-			test_slot_flag(zram, index, ZRAM_IDLE) ? 'i' : '.',
-			get_slot_comp_priority(zram, index) ? 'r' : '.',
-			test_slot_flag(zram, index,
-				       ZRAM_INCOMPRESSIBLE) ? 'n' : '.');
-
-		if (count <= copied) {
-			slot_unlock(zram, index);
-			break;
-		}
-		written += copied;
-		count -= copied;
-next:
-		slot_unlock(zram, index);
-		*ppos += 1;
-	}
-
-	if (copy_to_user(buf, kbuf, written))
-		written = -EFAULT;
-	kvfree(kbuf);
-
-	return written;
+	return pos;
 }
 
-static const struct file_operations proc_zram_block_state_op = {
-	.open = simple_open,
-	.read = read_block_state,
-	.llseek = default_llseek,
+static void *zram_block_state_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	struct zram *zram = seq->private;
+	unsigned long nr_pages = zram->disksize >> PAGE_SHIFT;
+
+	++*pos;
+	if (*pos >= nr_pages)
+		return NULL;
+
+	return pos;
+}
+
+static void zram_block_state_stop(struct seq_file *seq, void *v)
+{
+	struct zram *zram = seq->private;
+
+	up_read(&zram->dev_lock);
+}
+
+static int zram_block_state_show(struct seq_file *seq, void *v)
+{
+	struct zram *zram = seq->private;
+	unsigned long index = *(loff_t *)v;
+
+	slot_lock(zram, index);
+	if (slot_allocated(zram, index)) {
+		seq_printf(seq, "%12lu %12u.%06d %c%c%c%c%c%c\n",
+			   index, zram->table[index].attr.ac_time, 0,
+			   test_slot_flag(zram, index, ZRAM_SAME) ? 's' : '.',
+			   test_slot_flag(zram, index, ZRAM_WB) ? 'w' : '.',
+			   test_slot_flag(zram, index, ZRAM_HUGE) ? 'h' : '.',
+			   test_slot_flag(zram, index, ZRAM_IDLE) ? 'i' : '.',
+			   get_slot_comp_priority(zram, index) ? 'r' : '.',
+			   test_slot_flag(zram, index,
+					  ZRAM_INCOMPRESSIBLE) ? 'n' : '.');
+	}
+	slot_unlock(zram, index);
+
+	return 0;
+}
+
+static const struct seq_operations zram_block_state_sops = {
+	.start = zram_block_state_start,
+	.next = zram_block_state_next,
+	.stop = zram_block_state_stop,
+	.show = zram_block_state_show,
 };
+DEFINE_SEQ_ATTRIBUTE(zram_block_state);
 
 static void zram_debugfs_register(struct zram *zram)
 {
@@ -1624,7 +1626,7 @@ static void zram_debugfs_register(struct zram *zram)
 	zram->debugfs_dir = debugfs_create_dir(zram->disk->disk_name,
 						zram_debugfs_root);
 	debugfs_create_file("block_state", 0400, zram->debugfs_dir,
-				zram, &proc_zram_block_state_op);
+				zram, &zram_block_state_fops);
 }
 
 static void zram_debugfs_unregister(struct zram *zram)