diff options
| author | Josef Bacik <jbacik@fb.com> | 2016-09-08 12:33:39 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-09-08 14:01:35 -0600 |
| commit | 9b4a6ba9185ac1c398f2db69c491989452ce7018 (patch) | |
| tree | a30520bd15076b7860969b8f065fd528ac40cb55 | |
| parent | c261189862c6f65117eb3b1748622a08ef49c262 (diff) | |
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: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
| -rw-r--r-- | drivers/block/nbd.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 4b7d0f3c3521..cf855a1b3729 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -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 @@ out: /* 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); |