[lxc-devel] [PATCH] Use rdepends when non-thinpool LVM container is cloned

[Serge Hallyn]

Quoting KATOH Yasufumi (karma at jazz.email.ne.jp):
> When a non-thinpool LVM container which have snapshotted clone is
> destroyed, the LV of snapshotted clone was also deleted. This patch
> prevent it.
> 
> The original non-thinpool LVM container of snapshotted clone cannot be
> now destroyed.
> 
> Signed-off-by: KATOH Yasufumi <karma at jazz.email.ne.jp>

Acked-by: Serge E. Hallyn <serge.hallyn at ubuntu.com>

> ---
>  src/lxc/bdev.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/src/lxc/bdev.c b/src/lxc/bdev.c
> index 197ab55..cf7c043 100644
> --- a/src/lxc/bdev.c
> +++ b/src/lxc/bdev.c
> @@ -3403,8 +3403,12 @@ struct bdev *bdev_copy(struct lxc_container *c0, const char *cname,
>  	*needs_rdep = 0;
>  	if (bdevtype && strcmp(orig->type, "dir") == 0 &&
>  			(strcmp(bdevtype, "aufs") == 0 ||
> -			 strcmp(bdevtype, "overlayfs") == 0))
> +			 strcmp(bdevtype, "overlayfs") == 0)) {
>  		*needs_rdep = 1;
> +	} else if (snap && strcmp(orig->type, "lvm") == 0 &&
> +			!lvm_is_thin_volume(orig->src)) {
> +		*needs_rdep = 1;
> +	}
>  
>  	new = bdev_get(bdevtype ? bdevtype : orig->type);
>  	if (!new) {
> -- 
> 2.2.1
> 
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