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Commit 9b4a6ba9 authored by Josef Bacik's avatar Josef Bacik Committed by Jens Axboe
Browse files

nbd: use flags instead of bool 



In preparation for some future changes, change a few of the state bools over to
normal bits to set/clear properly.

Signed-off-by: default avatarJosef Bacik <jbacik@fb.com>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent c2611898

drivers/block/nbd.c

+10 −8
Original line number Diff line number Diff line
@@ -41,8 +41,12 @@ 


#include <linux/nbd.h>



#define NBD_TIMEDOUT			0

#define NBD_DISCONNECT_REQUESTED	1



struct nbd_device {

	u32 flags;

	unsigned long runtime_flags;

	struct socket * sock;	/* If == NULL, device is not ready, yet	*/

	int magic;
@@ -54,8 +58,6 @@ struct nbd_device { 
	int blksize;

	loff_t bytesize;

	int xmit_timeout;

	bool timedout;

	bool disconnect; /* a disconnect has been requested by user */



	struct timer_list timeout_timer;

	/* protects initialization and shutdown of the socket */
@@ -192,7 +194,7 @@ static void nbd_xmit_timeout(unsigned long arg) 


	spin_lock_irqsave(&nbd->sock_lock, flags);



	nbd->timedout = true;

	set_bit(NBD_TIMEDOUT, &nbd->runtime_flags);



	if (nbd->sock) {

		sock = nbd->sock;
@@ -562,8 +564,7 @@ static int nbd_set_socket(struct nbd_device *nbd, struct socket *sock) 
/* Reset all properties of an NBD device */

static void nbd_reset(struct nbd_device *nbd)

{

	nbd->disconnect = false;

	nbd->timedout = false;

	nbd->runtime_flags = 0;

	nbd->blksize = 1024;

	nbd->bytesize = 0;

	set_capacity(nbd->disk, 0);
@@ -626,7 +627,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd, 
			return -EINVAL;

		}



		nbd->disconnect = true;

		set_bit(NBD_DISCONNECT_REQUESTED, &nbd->runtime_flags);



		nbd_send_cmd(nbd, blk_mq_rq_to_pdu(sreq));

		blk_mq_free_request(sreq);
@@ -706,9 +707,10 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd, 
		kill_bdev(bdev);

		nbd_bdev_reset(bdev);



		if (nbd->disconnect) /* user requested, ignore socket errors */

		/* user requested, ignore socket errors */

		if (test_bit(NBD_DISCONNECT_REQUESTED, &nbd->runtime_flags))

			error = 0;

		if (nbd->timedout)

		if (test_bit(NBD_TIMEDOUT, &nbd->runtime_flags))

			error = -ETIMEDOUT;



		nbd_reset(nbd);