Ignore this patch. I had copied nbd_genl_connect, but there is no need to do 2 nbd_size_set calls if both attrs are set. I am going to resubmit a new patch.
On 05/15/2019 07:38 PM, Mike Christie wrote: > If the device is setup with ioctl we can resize the device after the > initial setup, but if the device is setup with netlink we cannot use the > resize related ioctls and there is no netlink reconfigure size ATTR > handling code. > > This patch adds netlink reconfigure resize support to match the ioctl > interface. > > Signed-off-by: Mike Christie <[email protected]> > --- > drivers/block/nbd.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c > index 053958a8a2ba..68b9d4b2d1be 100644 > --- a/drivers/block/nbd.c > +++ b/drivers/block/nbd.c > @@ -1939,6 +1939,15 @@ static int nbd_genl_reconfigure(struct sk_buff *skb, > struct genl_info *info) > goto out; > } > > + if (info->attrs[NBD_ATTR_SIZE_BYTES]) { > + u64 bytes = nla_get_u64(info->attrs[NBD_ATTR_SIZE_BYTES]); > + nbd_size_set(nbd, config->blksize, > + div64_u64(bytes, config->blksize)); > + } > + if (info->attrs[NBD_ATTR_BLOCK_SIZE_BYTES]) { > + u64 bsize = nla_get_u64(info->attrs[NBD_ATTR_BLOCK_SIZE_BYTES]); > + nbd_size_set(nbd, bsize, div64_u64(config->bytesize, bsize)); > + } > if (info->attrs[NBD_ATTR_TIMEOUT]) { > u64 timeout = nla_get_u64(info->attrs[NBD_ATTR_TIMEOUT]); > nbd->tag_set.timeout = timeout * HZ; >
