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From: Avi Kivity <avi@redhat.com>
To: kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 46/47] KVM: document lock nesting rule
Date: Wed, 19 Aug 2009 16:02:42 +0300	[thread overview]
Message-ID: <1250686963-8357-47-git-send-email-avi@redhat.com> (raw)
In-Reply-To: <1250686963-8357-1-git-send-email-avi@redhat.com>

From: Michael S. Tsirkin <mst@redhat.com>

Document kvm->lock nesting within kvm->slots_lock

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 virt/kvm/kvm_main.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 5946065..fc1b58a 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -68,7 +68,7 @@ MODULE_LICENSE("GPL");
 /*
  * Ordering of locks:
  *
- * 		kvm->lock --> kvm->irq_lock
+ * 		kvm->slots_lock --> kvm->lock --> kvm->irq_lock
  */
 
 DEFINE_SPINLOCK(kvm_lock);
-- 
1.6.3.3


  parent reply	other threads:[~2009-08-19 13:03 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-19 13:01 [PATCH 00/47] KVM updates for 2.6.32 merge window (2/4) Avi Kivity
2009-08-19 13:01 ` [PATCH 01/47] KVM: Return to userspace on emulation failure Avi Kivity
2009-08-19 13:01 ` [PATCH 02/47] KVM: MMU: introduce is_last_spte helper Avi Kivity
2009-08-19 13:01 ` [PATCH 03/47] KVM: MMU audit: update count_writable_mappings / count_rmaps Avi Kivity
2009-08-19 13:02 ` [PATCH 04/47] KVM: MMU audit: update audit_write_protection Avi Kivity
2009-08-19 13:02 ` [PATCH 05/47] KVM: MMU audit: nontrapping ptes in nonleaf level Avi Kivity
2009-08-19 13:02 ` [PATCH 06/47] KVM: MMU audit: audit_mappings tweaks Avi Kivity
2009-08-19 13:02 ` [PATCH 07/47] KVM: MMU audit: largepage handling Avi Kivity
2009-08-19 13:02 ` [PATCH 08/47] KVM: Move performance counter MSR access interception to generic x86 path Avi Kivity
2009-08-19 13:02 ` [PATCH 09/47] KVM: VMX: more MSR_IA32_VMX_EPT_VPID_CAP capability bits Avi Kivity
2009-08-19 13:02 ` [PATCH 10/47] KVM: MMU: make for_each_shadow_entry aware of largepages Avi Kivity
2009-08-19 13:02 ` [PATCH 11/47] KVM: MMU: add kvm_mmu_get_spte_hierarchy helper Avi Kivity
2009-08-19 13:02 ` [PATCH 12/47] KVM: VMX: EPT misconfiguration handler Avi Kivity
2009-08-19 13:02 ` [PATCH 13/47] KVM: VMX: conditionally disable 2M pages Avi Kivity
2009-08-19 13:02 ` [PATCH 14/47] KVM: Replace pending exception by PF if it happens serially Avi Kivity
2009-08-19 13:02 ` [PATCH 15/47] KVM: Optimize searching for highest IRR Avi Kivity
2009-08-19 13:02 ` [PATCH 16/47] KVM: Fix racy event propagation in timer Avi Kivity
2009-08-19 13:02 ` [PATCH 17/47] KVM: Drop useless atomic test from timer function Avi Kivity
2009-08-19 13:02 ` [PATCH 18/47] KVM: VMX: Only reload guest cr2 if different from host cr2 Avi Kivity
2009-08-19 13:02 ` [PATCH 19/47] KVM: SVM: Don't save/restore " Avi Kivity
2009-08-19 13:02 ` [PATCH 20/47] x86: Add definition for IGNNE MSR Avi Kivity
2009-08-19 13:02 ` [PATCH 21/47] KVM: Implement MSRs used by Hyper-V Avi Kivity
2009-08-19 13:02 ` [PATCH 22/47] KVM: SVM: Implement INVLPGA Avi Kivity
2009-08-19 13:02 ` [PATCH 23/47] KVM: SVM: Improve nested interrupt injection Avi Kivity
2009-08-19 13:02 ` [PATCH 24/47] KVM: convert custom marker based tracing to event traces Avi Kivity
2009-08-19 13:02 ` [PATCH 25/47] KVM: Allow emulation of syscalls instructions on #UD Avi Kivity
2009-08-19 13:02 ` [PATCH 26/47] KVM: x86 emulator: Add missing EFLAGS bit definitions Avi Kivity
2009-08-19 13:02 ` [PATCH 27/47] KVM: x86 emulator: Prepare for emulation of syscall instructions Avi Kivity
2009-08-19 13:02 ` [PATCH 28/47] KVM: x86 emulator: add syscall emulation Avi Kivity
2009-08-19 13:02 ` [PATCH 29/47] KVM: x86 emulator: Add sysenter emulation Avi Kivity
2009-08-19 13:02 ` [PATCH 30/47] KVM: x86 emulator: Add sysexit emulation Avi Kivity
2009-08-19 13:02 ` [PATCH 31/47] KVM: s390: Fix memslot initialization for userspace_addr != 0 Avi Kivity
2009-08-19 13:02 ` [PATCH 32/47] hugetlbfs: export vma_kernel_pagsize to modules Avi Kivity
2009-08-19 13:02 ` [PATCH 33/47] KVM: Prepare memslot data structures for multiple hugepage sizes Avi Kivity
2009-08-19 13:02 ` [PATCH 34/47] KVM: x86: missing locking in PIT/IRQCHIP/SET_BSP_CPU ioctl paths Avi Kivity
2009-08-19 13:02 ` [PATCH 35/47] KVM: ignore AMDs HWCR register access to set the FFDIS bit Avi Kivity
2009-08-19 13:02 ` [PATCH 36/47] KVM: ignore reads from AMDs C1E enabled MSR Avi Kivity
2009-08-19 13:02 ` [PATCH 37/47] KVM: introduce module parameter for ignoring unknown MSRs accesses Avi Kivity
2009-08-19 13:02 ` [PATCH 38/47] KVM: powerpc: convert marker probes to event trace Avi Kivity
2009-08-19 13:02 ` [PATCH 39/47] KVM: remove old KVMTRACE support code Avi Kivity
2009-08-19 13:02 ` [PATCH 40/47] KVM: use vcpu_id instead of bsp_vcpu pointer in kvm_vcpu_is_bsp Avi Kivity
2009-08-19 13:02 ` [PATCH 41/47] KVM: document locking for kvm_io_device_ops Avi Kivity
2009-08-19 13:02 ` [PATCH 42/47] KVM: switch coalesced mmio changes to slots_lock Avi Kivity
2009-08-19 13:02 ` [PATCH 43/47] KVM: switch pit creation " Avi Kivity
2009-08-19 13:02 ` [PATCH 44/47] KVM: convert bus " Avi Kivity
2009-08-19 13:02 ` [PATCH 45/47] KVM: remove in_range from io devices Avi Kivity
2009-08-19 13:02 ` Avi Kivity [this message]
2009-08-19 13:02 ` [PATCH 47/47] KVM: fix lock imbalance Avi Kivity

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