| Message ID | 20230105003813.1770367-1-paulmck@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [rcu,01/27] arch/x86: Remove "select SRCU" | expand |
On Wed, Jan 04, 2023, Paul E. McKenney wrote: > Now that the SRCU Kconfig option is unconditionally selected, there is > no longer any point in selecting it. Therefore, remove the "select SRCU" > Kconfig statements. > > Signed-off-by: Paul E. McKenney <paulmck@kernel.org> > Cc: Thomas Gleixner <tglx@linutronix.de> > Cc: Ingo Molnar <mingo@redhat.com> > Cc: Borislav Petkov <bp@alien8.de> > Cc: Dave Hansen <dave.hansen@linux.intel.com> > Cc: "H. Peter Anvin" <hpa@zytor.com> > Cc: Sean Christopherson <seanjc@google.com> > Cc: Paolo Bonzini <pbonzini@redhat.com> > Cc: <x86@kernel.org> > Cc: <kvm@vger.kernel.org> > --- ... > diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig > index fbeaa9ddef598..9306d99585188 100644 > --- a/arch/x86/kvm/Kconfig > +++ b/arch/x86/kvm/Kconfig > @@ -46,7 +46,6 @@ config KVM > select KVM_XFER_TO_GUEST_WORK > select KVM_GENERIC_DIRTYLOG_READ_PROTECT > select KVM_VFIO > - select SRCU Would it be too much trouble to bundle all of the KVM changes into a single patch? The SRCU requirement is a generic KVM requirement that's handled in the arch Kconfigs purely because of KVM's somewhat roundabout Kconfig setup. > select INTERVAL_TREE > select HAVE_KVM_PM_NOTIFIER if PM > help > -- > 2.31.1.189.g2e36527f23 >
On Mon, Jan 09, 2023 at 05:43:23PM +0000, Sean Christopherson wrote: > On Wed, Jan 04, 2023, Paul E. McKenney wrote: > > Now that the SRCU Kconfig option is unconditionally selected, there is > > no longer any point in selecting it. Therefore, remove the "select SRCU" > > Kconfig statements. > > > > Signed-off-by: Paul E. McKenney <paulmck@kernel.org> > > Cc: Thomas Gleixner <tglx@linutronix.de> > > Cc: Ingo Molnar <mingo@redhat.com> > > Cc: Borislav Petkov <bp@alien8.de> > > Cc: Dave Hansen <dave.hansen@linux.intel.com> > > Cc: "H. Peter Anvin" <hpa@zytor.com> > > Cc: Sean Christopherson <seanjc@google.com> > > Cc: Paolo Bonzini <pbonzini@redhat.com> > > Cc: <x86@kernel.org> > > Cc: <kvm@vger.kernel.org> > > --- > > ... > > > diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig > > index fbeaa9ddef598..9306d99585188 100644 > > --- a/arch/x86/kvm/Kconfig > > +++ b/arch/x86/kvm/Kconfig > > @@ -46,7 +46,6 @@ config KVM > > select KVM_XFER_TO_GUEST_WORK > > select KVM_GENERIC_DIRTYLOG_READ_PROTECT > > select KVM_VFIO > > - select SRCU > > Would it be too much trouble to bundle all of the KVM changes into a single patch? > The SRCU requirement is a generic KVM requirement that's handled in the arch Kconfigs > purely because of KVM's somewhat roundabout Kconfig setup. No problem, and will do on my next rebase. I might end up with a long list of Cc's, but so it goes. I will of course send the result as a reply to this message. Thanx, Paul > > select INTERVAL_TREE > > select HAVE_KVM_PM_NOTIFIER if PM > > help > > -- > > 2.31.1.189.g2e36527f23 > >
On Mon, Jan 09, 2023 at 11:22:28AM -0800, Paul E. McKenney wrote: > On Mon, Jan 09, 2023 at 05:43:23PM +0000, Sean Christopherson wrote: > > On Wed, Jan 04, 2023, Paul E. McKenney wrote: > > > Now that the SRCU Kconfig option is unconditionally selected, there is > > > no longer any point in selecting it. Therefore, remove the "select SRCU" > > > Kconfig statements. > > > > > > Signed-off-by: Paul E. McKenney <paulmck@kernel.org> > > > Cc: Thomas Gleixner <tglx@linutronix.de> > > > Cc: Ingo Molnar <mingo@redhat.com> > > > Cc: Borislav Petkov <bp@alien8.de> > > > Cc: Dave Hansen <dave.hansen@linux.intel.com> > > > Cc: "H. Peter Anvin" <hpa@zytor.com> > > > Cc: Sean Christopherson <seanjc@google.com> > > > Cc: Paolo Bonzini <pbonzini@redhat.com> > > > Cc: <x86@kernel.org> > > > Cc: <kvm@vger.kernel.org> > > > --- > > > > ... > > > > > diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig > > > index fbeaa9ddef598..9306d99585188 100644 > > > --- a/arch/x86/kvm/Kconfig > > > +++ b/arch/x86/kvm/Kconfig > > > @@ -46,7 +46,6 @@ config KVM > > > select KVM_XFER_TO_GUEST_WORK > > > select KVM_GENERIC_DIRTYLOG_READ_PROTECT > > > select KVM_VFIO > > > - select SRCU > > > > Would it be too much trouble to bundle all of the KVM changes into a single patch? > > The SRCU requirement is a generic KVM requirement that's handled in the arch Kconfigs > > purely because of KVM's somewhat roundabout Kconfig setup. > > No problem, and will do on my next rebase. I might end up with a long > list of Cc's, but so it goes. I will of course send the result as a > reply to this message. Like this? (Given the acks, the Cc list wasn't as long as I feared that it would be.) Thanx, Paul ------------------------------------------------------------------------ commit 8bde7256e3bdcf4519ee783b0bd919685b960402 Author: Paul E. McKenney <paulmck@kernel.org> Date: Tue Nov 22 15:45:39 2022 -0800 kvm: Remove "select SRCU" Now that the SRCU Kconfig option is unconditionally selected, there is no longer any point in selecting it. Therefore, remove the "select SRCU" Kconfig statements from the various KVM Kconfig files. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Sean Christopherson <seanjc@google.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: <kvm@vger.kernel.org> Acked-by: Marc Zyngier <maz@kernel.org> Acked-by: Anup Patel <anup@brainfault.org> Acked-by: Heiko Carstens <hca@linux.ibm.com> Reviewed-by: John Ogness <john.ogness@linutronix.de> diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig index 05da3c8f7e88f..312f0e9869111 100644 --- a/arch/arm64/kvm/Kconfig +++ b/arch/arm64/kvm/Kconfig @@ -28,7 +28,6 @@ menuconfig KVM select KVM_MMIO select KVM_GENERIC_DIRTYLOG_READ_PROTECT select KVM_XFER_TO_GUEST_WORK - select SRCU select KVM_VFIO select HAVE_KVM_EVENTFD select HAVE_KVM_IRQFD diff --git a/arch/mips/kvm/Kconfig b/arch/mips/kvm/Kconfig index 91d197bee9c0a..591f46a5d7be1 100644 --- a/arch/mips/kvm/Kconfig +++ b/arch/mips/kvm/Kconfig @@ -26,7 +26,6 @@ config KVM select HAVE_KVM_VCPU_ASYNC_IOCTL select KVM_MMIO select MMU_NOTIFIER - select SRCU select INTERVAL_TREE help Support for hosting Guest kernels. diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig index a9f57dad6d916..902611954200d 100644 --- a/arch/powerpc/kvm/Kconfig +++ b/arch/powerpc/kvm/Kconfig @@ -22,7 +22,6 @@ config KVM select PREEMPT_NOTIFIERS select HAVE_KVM_EVENTFD select HAVE_KVM_VCPU_ASYNC_IOCTL - select SRCU select KVM_VFIO select IRQ_BYPASS_MANAGER select HAVE_KVM_IRQ_BYPASS diff --git a/arch/riscv/kvm/Kconfig b/arch/riscv/kvm/Kconfig index f36a737d5f96d..6bc9b290c1283 100644 --- a/arch/riscv/kvm/Kconfig +++ b/arch/riscv/kvm/Kconfig @@ -27,7 +27,6 @@ config KVM select KVM_XFER_TO_GUEST_WORK select HAVE_KVM_VCPU_ASYNC_IOCTL select HAVE_KVM_EVENTFD - select SRCU help Support hosting virtualized guest machines. diff --git a/arch/s390/kvm/Kconfig b/arch/s390/kvm/Kconfig index 33f4ff909476c..45fdf2a9b2e32 100644 --- a/arch/s390/kvm/Kconfig +++ b/arch/s390/kvm/Kconfig @@ -31,7 +31,6 @@ config KVM select HAVE_KVM_IRQ_ROUTING select HAVE_KVM_INVALID_WAKEUPS select HAVE_KVM_NO_POLL - select SRCU select KVM_VFIO select INTERVAL_TREE select MMU_NOTIFIER diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig index fbeaa9ddef598..9306d99585188 100644 --- a/arch/x86/kvm/Kconfig +++ b/arch/x86/kvm/Kconfig @@ -46,7 +46,6 @@ config KVM select KVM_XFER_TO_GUEST_WORK select KVM_GENERIC_DIRTYLOG_READ_PROTECT select KVM_VFIO - select SRCU select INTERVAL_TREE select HAVE_KVM_PM_NOTIFIER if PM help
On Mon, Jan 09, 2023, Paul E. McKenney wrote: > On Mon, Jan 09, 2023 at 11:22:28AM -0800, Paul E. McKenney wrote: > > On Mon, Jan 09, 2023 at 05:43:23PM +0000, Sean Christopherson wrote: > > > On Wed, Jan 04, 2023, Paul E. McKenney wrote: > > > > Now that the SRCU Kconfig option is unconditionally selected, there is > > > > no longer any point in selecting it. Therefore, remove the "select SRCU" > > > > Kconfig statements. > > > > > > > > Signed-off-by: Paul E. McKenney <paulmck@kernel.org> > > > > Cc: Thomas Gleixner <tglx@linutronix.de> > > > > Cc: Ingo Molnar <mingo@redhat.com> > > > > Cc: Borislav Petkov <bp@alien8.de> > > > > Cc: Dave Hansen <dave.hansen@linux.intel.com> > > > > Cc: "H. Peter Anvin" <hpa@zytor.com> > > > > Cc: Sean Christopherson <seanjc@google.com> > > > > Cc: Paolo Bonzini <pbonzini@redhat.com> > > > > Cc: <x86@kernel.org> > > > > Cc: <kvm@vger.kernel.org> > > > > --- > > > > > > ... > > > > > > > diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig > > > > index fbeaa9ddef598..9306d99585188 100644 > > > > --- a/arch/x86/kvm/Kconfig > > > > +++ b/arch/x86/kvm/Kconfig > > > > @@ -46,7 +46,6 @@ config KVM > > > > select KVM_XFER_TO_GUEST_WORK > > > > select KVM_GENERIC_DIRTYLOG_READ_PROTECT > > > > select KVM_VFIO > > > > - select SRCU > > > > > > Would it be too much trouble to bundle all of the KVM changes into a single patch? > > > The SRCU requirement is a generic KVM requirement that's handled in the arch Kconfigs > > > purely because of KVM's somewhat roundabout Kconfig setup. > > > > No problem, and will do on my next rebase. I might end up with a long > > list of Cc's, but so it goes. I will of course send the result as a > > reply to this message. > > Like this? Ya, looks good!
On Tue, Jan 10, 2023 at 07:55:13PM +0000, Sean Christopherson wrote: > On Mon, Jan 09, 2023, Paul E. McKenney wrote: > > On Mon, Jan 09, 2023 at 11:22:28AM -0800, Paul E. McKenney wrote: > > > On Mon, Jan 09, 2023 at 05:43:23PM +0000, Sean Christopherson wrote: > > > > On Wed, Jan 04, 2023, Paul E. McKenney wrote: > > > > > Now that the SRCU Kconfig option is unconditionally selected, there is > > > > > no longer any point in selecting it. Therefore, remove the "select SRCU" > > > > > Kconfig statements. > > > > > > > > > > Signed-off-by: Paul E. McKenney <paulmck@kernel.org> > > > > > Cc: Thomas Gleixner <tglx@linutronix.de> > > > > > Cc: Ingo Molnar <mingo@redhat.com> > > > > > Cc: Borislav Petkov <bp@alien8.de> > > > > > Cc: Dave Hansen <dave.hansen@linux.intel.com> > > > > > Cc: "H. Peter Anvin" <hpa@zytor.com> > > > > > Cc: Sean Christopherson <seanjc@google.com> > > > > > Cc: Paolo Bonzini <pbonzini@redhat.com> > > > > > Cc: <x86@kernel.org> > > > > > Cc: <kvm@vger.kernel.org> > > > > > --- > > > > > > > > ... > > > > > > > > > diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig > > > > > index fbeaa9ddef598..9306d99585188 100644 > > > > > --- a/arch/x86/kvm/Kconfig > > > > > +++ b/arch/x86/kvm/Kconfig > > > > > @@ -46,7 +46,6 @@ config KVM > > > > > select KVM_XFER_TO_GUEST_WORK > > > > > select KVM_GENERIC_DIRTYLOG_READ_PROTECT > > > > > select KVM_VFIO > > > > > - select SRCU > > > > > > > > Would it be too much trouble to bundle all of the KVM changes into a single patch? > > > > The SRCU requirement is a generic KVM requirement that's handled in the arch Kconfigs > > > > purely because of KVM's somewhat roundabout Kconfig setup. > > > > > > No problem, and will do on my next rebase. I might end up with a long > > > list of Cc's, but so it goes. I will of course send the result as a > > > reply to this message. > > > > Like this? > > Ya, looks good! Glad you like it! May I have your ack? Or would you take this one? Thanx, Paul
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 3604074a878b8..4a9175fe7dd18 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -283,7 +283,6 @@ config X86 select RTC_LIB select RTC_MC146818_LIB select SPARSE_IRQ - select SRCU select SYSCTL_EXCEPTION_TRACE select THREAD_INFO_IN_TASK select TRACE_IRQFLAGS_SUPPORT @@ -1938,7 +1937,6 @@ config X86_SGX depends on X86_64 && CPU_SUP_INTEL && X86_X2APIC depends on CRYPTO=y depends on CRYPTO_SHA256=y - select SRCU select MMU_NOTIFIER select NUMA_KEEP_MEMINFO if NUMA select XARRAY_MULTI diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig index fbeaa9ddef598..9306d99585188 100644 --- a/arch/x86/kvm/Kconfig +++ b/arch/x86/kvm/Kconfig @@ -46,7 +46,6 @@ config KVM select KVM_XFER_TO_GUEST_WORK select KVM_GENERIC_DIRTYLOG_READ_PROTECT select KVM_VFIO - select SRCU select INTERVAL_TREE select HAVE_KVM_PM_NOTIFIER if PM help
Now that the SRCU Kconfig option is unconditionally selected, there is no longer any point in selecting it. Therefore, remove the "select SRCU" Kconfig statements. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Sean Christopherson <seanjc@google.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: <x86@kernel.org> Cc: <kvm@vger.kernel.org> --- arch/x86/Kconfig | 2 -- arch/x86/kvm/Kconfig | 1 - 2 files changed, 3 deletions(-)