[lvm-devel] [PATCH 0/1] adding Btrfs resizing capability to lvresize/fsadm.sh

[Marcus Müller]

So,

I'll admit that me spontaneously handing in above feature patch
yesterday was an act of "let's get this out of my head before I go
home". For private purposes, I wanted lvresize -r to deal with BTRFS, too.
Am I right here to post feature branches at all? Any copyright
assignments I need to take care of?

Regarding the patch:

BTRFS is a bit special in that one filesystem can spread across multiple
physical volumes. In the case of multi-volume BTRFS, we need to specify
which specific one needs resizing; hence the whole devid dance.
Also: BTRFS needs to be mounted to be resized; mount detection sometimes
fails. That is not an issue, since it's safe to multi-mount a filesystem
and resize it. So in fact, I was considering skipping the checking for
mountedness completely, but then decided against it to keep the resize_*
functions as uniform and recognizable as possible.

Best regards,
Marcus Müller

On 08/02/2017 07:42 PM, Marcus Müller wrote:
> Btrfs support was missing from LVM's volume resize tools.
> Fixed that.
> 
> Marcus Müller (1):
>   added resizing for btrfs
> 
>  scripts/fsadm.sh | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
>  1 file changed, 68 insertions(+), 1 deletion(-)
>