Messages in this thread Patch in this message | | | From | (Eric W. Biederman) | Date | Fri, 07 Jun 2019 16:41:58 -0500 | Subject | [RFC PATCH 2/5] signal/kvm: Stop using sigprocmask in kvm_sigset_(activate|deactivate) |
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Instead of jumping through hoops call __set_current_blocked directly. As well as directly manipulating real_blocked.
This is in preparation for modifying the code to always keep real_blocked in sync with blocked except in the rare cases when the kernel needs to override it.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> --- virt/kvm/kvm_main.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index f0d13d9d125d..8575a1010bfc 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2240,7 +2240,8 @@ void kvm_sigset_activate(struct kvm_vcpu *vcpu) * ->real_blocked don't care as long ->real_blocked is always a subset * of ->blocked. */ - sigprocmask(SIG_SETMASK, &vcpu->sigset, ¤t->real_blocked); + current->real_blocked = current->blocked; + __set_current_blocked(&vcpu->sigset); } void kvm_sigset_deactivate(struct kvm_vcpu *vcpu) @@ -2248,7 +2249,7 @@ void kvm_sigset_deactivate(struct kvm_vcpu *vcpu) if (!vcpu->sigset_active) return; - sigprocmask(SIG_SETMASK, ¤t->real_blocked, NULL); + __set_current_blocked(¤t->real_blocked); sigemptyset(¤t->real_blocked); } -- 2.21.0.dirty
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