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| author | Junaid Shahid <junaids@google.com> | 2019-01-04 04:14:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-16 12:29:49 +0300 |
| commit | c6170b81e7b78942cb4b36fc72cbd75145fd08d5 (patch) | |
| tree | e45a4c8fb8dc8357dc6ee8d5995d7f8de71fd10e /arch/x86/kvm/mmu.c | |
| parent | 61524f1bccc041b7871a21984b69b8e538f446c0 (diff) | |
| download | linux-c6170b81e7b78942cb4b36fc72cbd75145fd08d5.tar.xz | |
kvm: Convert kvm_lock to a mutex
commit 0d9ce162cf46c99628cc5da9510b959c7976735b upstream.
It doesn't seem as if there is any particular need for kvm_lock to be a
spinlock, so convert the lock to a mutex so that sleepable functions (in
particular cond_resched()) can be called while holding it.
Signed-off-by: Junaid Shahid <junaids@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[bwh: Backported to 4.9:
- Drop changes in kvm_hyperv_tsc_notifier(), vm_stat_clear(),
vcpu_stat_clear(), kvm_uevent_notify_change()
- Adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kvm/mmu.c')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index df142bb700f6..57aa700a1cac 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -4979,7 +4979,7 @@ mmu_shrink_scan(struct shrinker *shrink, struct shrink_control *sc) int nr_to_scan = sc->nr_to_scan; unsigned long freed = 0; - spin_lock(&kvm_lock); + mutex_lock(&kvm_lock); list_for_each_entry(kvm, &vm_list, vm_list) { int idx; @@ -5029,7 +5029,7 @@ unlock: break; } - spin_unlock(&kvm_lock); + mutex_unlock(&kvm_lock); return freed; } |