nbd: Move flag parsing to a function

nbd changes properties of the blockdevice depending on flags that were
received. This patch moves this flag parsing into a separate function
nbd_parse_flags().

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 34a46c3..b67500d 100644 (file)
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -641,6 +641,18 @@ static void nbd_bdev_reset(struct block_device *bdev)
        }
 }
 
+static void nbd_parse_flags(struct nbd_device *nbd, struct block_device *bdev)
+{
+       if (nbd->flags & NBD_FLAG_READ_ONLY)
+               set_device_ro(bdev, true);
+       if (nbd->flags & NBD_FLAG_SEND_TRIM)
+               queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, nbd->disk->queue);
+       if (nbd->flags & NBD_FLAG_SEND_FLUSH)
+               blk_queue_flush(nbd->disk->queue, REQ_FLUSH);
+       else
+               blk_queue_flush(nbd->disk->queue, 0);
+}
+
 static int nbd_dev_dbg_init(struct nbd_device *nbd);
 static void nbd_dev_dbg_close(struct nbd_device *nbd);
 
@@ -742,15 +754,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
 
                mutex_unlock(&nbd->tx_lock);
 
-               if (nbd->flags & NBD_FLAG_READ_ONLY)
-                       set_device_ro(bdev, true);
-               if (nbd->flags & NBD_FLAG_SEND_TRIM)
-                       queue_flag_set_unlocked(QUEUE_FLAG_DISCARD,
-                               nbd->disk->queue);
-               if (nbd->flags & NBD_FLAG_SEND_FLUSH)
-                       blk_queue_flush(nbd->disk->queue, REQ_FLUSH);
-               else
-                       blk_queue_flush(nbd->disk->queue, 0);
+               nbd_parse_flags(nbd, bdev);
 
                thread = kthread_run(nbd_thread_send, nbd, "%s",
                                     nbd_name(nbd));