diff options
Diffstat (limited to 'src/kernel/blk.c')
| -rw-r--r-- | src/kernel/blk.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/kernel/blk.c b/src/kernel/blk.c index 661bc2e..90e9b34 100644 --- a/src/kernel/blk.c +++ b/src/kernel/blk.c @@ -247,6 +247,13 @@ static int dnbd3_blk_ioctl(struct block_device *bdev, fmode_t mode, unsigned int /* switching didn't work but we are back to the old server */ result = -EAGAIN; } + } else { + /* switch succeeded, fake very low RTT so we don't switch away again soon */ + mutex_lock(&dev->alt_servers_lock); + if (is_same_server(alt_server, &new_server)) { + alt_server->rtts[0] = alt_server->rtts[1] = alt_server->rtts[2] = alt_server->rtts[3] = 4; + } + mutex_unlock(&dev->alt_servers_lock); } } else { /* specified server is already working, so do not switch */ |