Messages in this thread | | | From | KY Srinivasan <> | Subject | RE: [PATCH 1/1] X86/Hyper-V:: Fix the circular dependency in IPI enlightenment. | Date | Fri, 6 Jul 2018 03:59:23 +0000 |
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> -----Original Message----- > From: Thomas Gleixner <tglx@linutronix.de> > Sent: Thursday, July 5, 2018 3:46 PM > To: Ingo Molnar <mingo@kernel.org> > Cc: KY Srinivasan <kys@microsoft.com>; x86@kernel.org; > gregkh@linuxfoundation.org; linux-kernel@vger.kernel.org; > devel@linuxdriverproject.org; olaf@aepfle.de; apw@canonical.com; > jasowang@redhat.com; hpa@zytor.com; Stephen Hemminger > <sthemmin@microsoft.com>; Michael Kelley (EOSG) > <Michael.H.Kelley@microsoft.com>; vkuznets@redhat.com > Subject: Re: [PATCH 1/1] X86/Hyper-V:: Fix the circular dependency in IPI > enlightenment. > > On Fri, 6 Jul 2018, Ingo Molnar wrote: > > * KY Srinivasan <kys@microsoft.com> wrote: > > > I am confused. The label ipi_mask_done was introduced in this patch > > > (the patch under question fixes a circular dependency in this patch): > > > > > > commit 68bb7bfb7985df2bd15c2dc975cb68b7a901488a > > > Author: K. Y. Srinivasan <kys@microsoft.com> > > > Date: Wed May 16 14:53:31 2018 -0700 > > > > > > X86/Hyper-V: Enable IPI enlightenments > > > > > > Hyper-V supports hypercalls to implement IPI; use them. > > > > > > Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> > > > Signed-off-by: Thomas Gleixner <tglx@linutronix.de> > > > Reviewed-by: Michael Kelley <mikelley@microsoft.com> > > > > > > This patch was committed by Thomas some weeks ago and is in linux- > next. > > > This patch is also in 4.18-rc3. > > > > And then that name was changed to a different label in: > > > > 4bd06060762b: x86/hyper-v: Use cheaper HVCALL_SEND_IPI hypercall > when possible > > > > So maybe you were testing on an older kernel. Could you try the latest - > tip?
> > The problem is that the wreckage is in Linus tree and needs to be fixed > there, i.e. via x86/urgent. > > Now we have the new bits queued in x86/hyperv already which collide. So > we > need to merge x86/urgent into x86/hyperv after applying the fix and mop up > the merge wreckage in x86/hyperv. > > I'll have a look tomorrow morning unless you beat me to it.
I can rebase this patch against the latest tip and resend (tomorrow).
K. Y > > Thanks, > > tglx
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