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authorLinus Torvalds <torvalds@linux-foundation.org>2015-04-14 13:58:48 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-14 13:58:48 -0700
commite95e7f627062be5e6ce971ce873e6234c91ffc50 (patch)
treec00c00f2afb284037d4acc301f3be8a35a858acd /arch
parent078838d56574694d0a4815d9c1b7f28e8844638b (diff)
parent1524b745406a85ba201cb25df72110c1ccac0f72 (diff)
downloadkernel-e95e7f627062be5e6ce971ce873e6234c91ffc50.tar.gz
Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull NOHZ changes from Ingo Molnar: "This tree adds full dynticks support to KVM guests (support the disabling of the timer tick on the guest). The main missing piece was the recognition of guest execution as RCU extended quiescent state and related changes" * 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: kvm,rcu,nohz: use RCU extended quiescent state when running KVM guest context_tracking: Export context_tracking_user_enter/exit context_tracking: Run vtime_user_enter/exit only when state == CONTEXT_USER context_tracking: Add stub context_tracking_is_enabled context_tracking: Generalize context tracking APIs to support user and guest context_tracking: Rename context symbols to prepare for transition state ppc: Remove unused cpp symbols in kvm headers
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/include/asm/kvm_book3s.h4
-rw-r--r--arch/x86/kernel/traps.c2
2 files changed, 1 insertions, 5 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 942c7b1678e3..993090422690 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -106,10 +106,6 @@ struct kvmppc_vcpu_book3s {
spinlock_t mmu_lock;
};
-#define CONTEXT_HOST 0
-#define CONTEXT_GUEST 1
-#define CONTEXT_GUEST_END 2
-
#define VSID_REAL 0x07ffffffffc00000ULL
#define VSID_BAT 0x07ffffffffb00000ULL
#define VSID_64K 0x0800000000000000ULL
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index f4fa991406cd..324ab5247687 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -123,7 +123,7 @@ enum ctx_state ist_enter(struct pt_regs *regs)
* but we need to notify RCU.
*/
rcu_nmi_enter();
- prev_state = IN_KERNEL; /* the value is irrelevant. */
+ prev_state = CONTEXT_KERNEL; /* the value is irrelevant. */
}
/*