[pve-devel] [PATCH storage] fix 3214: storage dir structure creation with mkdir 0
Wolfgang Bumiller
w.bumiller at proxmox.com
Tue Dec 22 14:25:54 CET 2020
On Tue, Dec 22, 2020 at 01:57:25PM +0100, Wolfgang Bumiller wrote:
> On Tue, Dec 22, 2020 at 11:53:40AM +0100, Aaron Lauterer wrote:
> > We fail early when `mkdir 0` is set for the storage to avoid creating
> > the directories in the storage path.
> >
> > This means that once `mkdir 0` is set, the code to create the needed
> > directory structure (e.g. dump, image, ...) at the storage location will
> > never run.
> >
> > Adding an additional check to only return early if the storage path
> > currently does not exist solves the problem.
> >
> > Signed-off-by: Aaron Lauterer <a.lauterer at proxmox.com>
> > ---
> > PVE/Storage/Plugin.pm | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/PVE/Storage/Plugin.pm b/PVE/Storage/Plugin.pm
> > index 57c58a9..bda1beb 100644
> > --- a/PVE/Storage/Plugin.pm
> > +++ b/PVE/Storage/Plugin.pm
> > @@ -1158,8 +1158,8 @@ sub activate_storage {
> > "directory '$path' does not exist or is unreachable\n";
> > }
> >
> > -
> > - return if defined($scfg->{mkdir}) && !$scfg->{mkdir};
> > + my $st = File::stat::stat($path);
> > + return if defined($scfg->{mkdir}) && !$scfg->{mkdir} && !defined($st);
>
> Instead of calling stat you can just use the `-d` prefix operator.
scratch that, we already perform that check right above this code...
and `mkdir` here changes meaning from "create the path to the storage"
to "create the directries *inside* the storage"... this is bad :|
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