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KVM: Fix comments that refer to the non-existent install_new_memslots()

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Fix stale comments that were left behind when install_new_memslots() was
replaced by kvm_swap_active_memslots() as part of the scalable memslots
rework.

Fixes: a54d806688 ("KVM: Keep memslots in tree-based structures instead of array-based ones")
Signed-off-by: Jun Miao <jun.miao@intel.com>
Link: https://lore.kernel.org/r/20230223052851.1054799-1-jun.miao@intel.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Jun Miao
2023-02-23 13:28:51 +08:00
committed by Sean Christopherson
parent 7ffc2e8951
commit b0d237087c
3 changed files with 10 additions and 10 deletions
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14
virt/kvm/kvm_main.c
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@@ -1298,7 +1298,7 @@ static void kvm_destroy_vm(struct kvm *kvm)
* At this point, pending calls to invalidate_range_start()
* have completed but no more MMU notifiers will run, so
* mn_active_invalidate_count may remain unbalanced.
* No threads can be waiting in install_new_memslots as the
* No threads can be waiting in kvm_swap_active_memslots() as the
* last reference on KVM has been dropped, but freeing
* memslots would deadlock without this manual intervention.
*/
@@ -1742,13 +1742,13 @@ static void kvm_invalidate_memslot(struct kvm *kvm,
kvm_arch_flush_shadow_memslot(kvm, old);
kvm_arch_guest_memory_reclaimed(kvm);
/* Was released by kvm_swap_active_memslots, reacquire. */
/* Was released by kvm_swap_active_memslots(), reacquire. */
mutex_lock(&kvm->slots_arch_lock);
/*
* Copy the arch-specific field of the newly-installed slot back to the
* old slot as the arch data could have changed between releasing
* slots_arch_lock in install_new_memslots() and re-acquiring the lock
* slots_arch_lock in kvm_swap_active_memslots() and re-acquiring the lock
* above. Writers are required to retrieve memslots *after* acquiring
* slots_arch_lock, thus the active slot's data is guaranteed to be fresh.
*/
@@ -1810,11 +1810,11 @@ static int kvm_set_memslot(struct kvm *kvm,
int r;
/*
* Released in kvm_swap_active_memslots.
* Released in kvm_swap_active_memslots().
*
* Must be held from before the current memslots are copied until
* after the new memslots are installed with rcu_assign_pointer,
* then released before the synchronize srcu in kvm_swap_active_memslots.
* Must be held from before the current memslots are copied until after
* the new memslots are installed with rcu_assign_pointer, then
* released before the synchronize srcu in kvm_swap_active_memslots().
*
* When modifying memslots outside of the slots_lock, must be held
* before reading the pointer to the current memslots until after all