diff options
Diffstat (limited to 'src/kernel/blk.c')
| -rw-r--r-- | src/kernel/blk.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/kernel/blk.c b/src/kernel/blk.c index afdeea8..7e043c0 100644 --- a/src/kernel/blk.c +++ b/src/kernel/blk.c @@ -39,6 +39,7 @@ static int dnbd3_blk_ioctl(struct block_device *bdev, fmode_t mode, unsigned int struct request_queue *blk_queue = dev->disk->queue; char *imgname = NULL; dnbd3_ioctl_t *msg = NULL; + unsigned long irqflags; int i = 0; while (dev->disconnecting) { /* do nothing */ } @@ -193,9 +194,11 @@ static int dnbd3_blk_ioctl(struct block_device *bdev, fmode_t mode, unsigned int } else { + spin_lock_irqsave(&dev->blk_lock, irqflags); memcpy(&dev->new_servers[dev->new_servers_num].host, &msg->hosts[0], sizeof(msg->hosts[0])); dev->new_servers[dev->new_servers_num].failures = (cmd == IOCTL_ADD_SRV ? 0 : 1); // 0 = ADD, 1 = REM ++dev->new_servers_num; + spin_unlock_irqrestore(&dev->blk_lock, irqflags); result = 0; } break; |