linux-kernel - Re: [GIT PULL] KVM changes for 4.18 merge window

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Message-ID: <20180613044840.GA669@kroah.com>
Date:   Wed, 13 Jun 2018 06:48:40 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Wanpeng Li <kernellwp@...il.com>,
        Thomas-Mich Richter <tmricht@...ux.ibm.com>,
        Kees Cook <keescook@...omium.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Radim Krčmář <rkrcmar@...hat.com>,
        KVM list <kvm@...r.kernel.org>
Subject: Re: [GIT PULL] KVM changes for 4.18 merge window

On Tue, Jun 12, 2018 at 08:52:08PM -0700, Linus Torvalds wrote:
> On Tue, Jun 12, 2018 at 8:26 PM Linus Torvalds
> <torvalds@...ux-foundation.org> wrote:
> >
> > Ok, so commit 95cde3c59966 ("debugfs: inode: debugfs_create_dir uses
> > mode permission from parent") breaks lkvm, and I think qemu-kvm too.
> >
> > The commit looks like the RightThing(tm) to do, but we do not break
> > existing work-flows, no matter how much we'd like to.  So it gets
> > reverted.
> 
> I suspect it's the special kvm debugfs entries - see kvm_create_vm_debugfs()
> 
> Anyway, I've verified that both qemu-kvm and kvm-tool work fine with
> the revert in place.

I should have read the whole thread :)

The revert is fine, I'll work on the kvm debugfs file stuff for 4.19.

thanks,

greg k-h