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kvm: rename last argument to kvm_get_dirty_log_protect

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When manual dirty log reprotect will be enabled, kvm_get_dirty_log_protect's
pointer argument will always be false on exit, because no TLB flush is needed
until the manual re-protection operation.  Rename it from "is_dirty" to "flush",
which more accurately tells the caller what they have to do with it.

Signed-off-by: Paolo Bonzini <[email protected]>
This commit is contained in:
Paolo Bonzini 2018-10-23 02:18:42 +02:00
commit 8fe65a8299
5 changed files with 13 additions and 13 deletions
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6
virt/kvm/arm/arm.c
View file

@ -1205,14 +1205,14 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
*/
int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log)
{
bool is_dirty = false;
bool flush = false;
int r;
mutex_lock(&kvm->slots_lock);
r = kvm_get_dirty_log_protect(kvm, log, &is_dirty);
r = kvm_get_dirty_log_protect(kvm, log, &flush);
if (is_dirty)
if (flush)
kvm_flush_remote_tlbs(kvm);
mutex_unlock(&kvm->slots_lock);

6
virt/kvm/kvm_main.c
View file

@ -1154,7 +1154,7 @@ EXPORT_SYMBOL_GPL(kvm_get_dirty_log);
*
*/
int kvm_get_dirty_log_protect(struct kvm *kvm,
struct kvm_dirty_log *log, bool *is_dirty)
struct kvm_dirty_log *log, bool *flush)
{
struct kvm_memslots *slots;
struct kvm_memory_slot *memslot;
@ -1181,7 +1181,7 @@ int kvm_get_dirty_log_protect(struct kvm *kvm,
memset(dirty_bitmap_buffer, 0, n);
spin_lock(&kvm->mmu_lock);
*is_dirty = false;
*flush = false;
for (i = 0; i < n / sizeof(long); i++) {
unsigned long mask;
gfn_t offset;
@ -1189,7 +1189,7 @@ int kvm_get_dirty_log_protect(struct kvm *kvm,
if (!dirty_bitmap[i])
continue;
*is_dirty = true;
*flush = true;
mask = xchg(&dirty_bitmap[i], 0);
dirty_bitmap_buffer[i] = mask;