From: Jacob Pan <jacob.jun.pan@intel.com>
To: Vipin Sharma <vipinsh@google.com>
Cc: tj@kernel.org, mkoutny@suse.com, rdunlap@infradead.org,
thomas.lendacky@amd.com, brijesh.singh@amd.com,
jon.grimm@amd.com, eric.vantassell@amd.com, pbonzini@redhat.com,
hannes@cmpxchg.org, frankja@linux.ibm.com,
borntraeger@de.ibm.com, corbet@lwn.net, seanjc@google.com,
vkuznets@redhat.com, wanpengli@tencent.com, jmattson@google.com,
joro@8bytes.org, tglx@linutronix.de, mingo@redhat.com,
bp@alien8.de, hpa@zytor.com, gingell@google.com,
rientjes@google.com, dionnaglaze@google.com, kvm@vger.kernel.org,
x86@kernel.org, cgroups@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
Jacob Pan <jacob.jun.pan@linux.intel.com>,
jacob.jun.pan@intel.com
Subject: Re: [Patch v3 1/2] cgroup: sev: Add misc cgroup controller
Date: Wed, 24 Mar 2021 09:17:01 -0700 [thread overview]
Message-ID: <20210324091701.63c9ce8e@jacob-builder> (raw)
In-Reply-To: <YFjn7wv/iMO4Isgz@google.com>
Hi Vipin,
On Mon, 22 Mar 2021 11:54:39 -0700, Vipin Sharma <vipinsh@google.com> wrote:
> On Fri, Mar 19, 2021 at 02:28:01PM -0700, Jacob Pan wrote:
> > On Thu, 4 Mar 2021 15:19:45 -0800, Vipin Sharma <vipinsh@google.com>
> > wrote:
> > > +#ifndef _MISC_CGROUP_H_
> > > +#define _MISC_CGROUP_H_
> > > +
> > nit: should you do #include <linux/cgroup.h>?
> > Otherwise, css may be undefined.
>
> User of this controller will use get_curernt_misc_cg() API which returns
> a pointer. Ideally the user should use this pointer and they shouldn't
> have any need to access "css" in their code. They also don't need to
> create a object of 'struct misc_cg{}', because that won't be correct misc
> cgroup object. They should just declare a pointer like we are doing here
> in 'struct kvm_sev_info {}'.
>
> If they do need to use "css" then they can include cgroup header in their
> code.
>
I didn't mean the users of misc_cgroup will use css directly. I meant if I
want to use misc cgruop in ioasid.c, I have to do the following to avoid
undefined css:
#include <linux/cgroup.h>
#include <linux/misc_cgroup.h>
So it might be simpler if you do #include <linux/cgroup.h> inside
misc_cgroup.h. Then in ioasid.c, I only need to do
#include <linux/misc_cgroup.h>.
> Let me know if I am overlooking something here.
>
> Thanks
> Vipin Sharma
Thanks,
Jacob
next prev parent reply other threads:[~2021-03-24 16:15 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-04 23:19 [Patch v3 0/2] cgroup: New misc cgroup controller Vipin Sharma
2021-03-04 23:19 ` [Patch v3 1/2] cgroup: sev: Add " Vipin Sharma
2021-03-11 18:59 ` Michal Koutný
2021-03-12 19:07 ` Vipin Sharma
2021-03-15 18:34 ` Michal Koutný
2021-03-12 19:48 ` Vipin Sharma
2021-03-12 20:51 ` Sean Christopherson
2021-03-12 21:18 ` Tom Lendacky
2021-03-19 21:28 ` Jacob Pan
2021-03-22 18:54 ` Vipin Sharma
2021-03-24 16:17 ` Jacob Pan [this message]
2021-03-24 22:09 ` Vipin Sharma
2021-03-04 23:19 ` [Patch v3 2/2] cgroup: sev: Miscellaneous cgroup documentation Vipin Sharma
2021-03-07 12:48 ` [Patch v3 0/2] cgroup: New misc cgroup controller Tejun Heo
2021-03-11 18:58 ` Michal Koutný
2021-03-11 19:39 ` Tejun Heo
2021-03-12 17:49 ` Vipin Sharma
2021-03-15 19:10 ` Michal Koutný
2021-03-22 18:24 ` Vipin Sharma
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