On Sat, Mar 10, 2018 at 08:25:15PM -0500, Alex Gorbachev wrote:
> I am running into the problem described in
> https://lkml.org/lkml/2018/2/19/565 and
> https://tracker.ceph.com/issues/23137
> I went ahead and built a custom kernel reverting the change
> https://github.com/torvalds/linux/commit/639812a1ed9bf49ae2c026086fbf975339cd1eef
> After that a resize shows in lsblk and /sys/block/nbdX/size, but not
> in parted for a mounted filesystem.
> Unmapping and remapping the NBD device shows the size in parted.

Note 639812a is only a part of changes. The more invasive changes are
in 29eaadc [1]. For me the most suspicious looks removing
bd_set_size() in nbd_size_update(), but this is just a wild guess.

I would recommend to contact the authors of the change. This would
also be a gentle remainder for Josef that he promised to fix this.


Mykola Golub
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