linux-kernel - [RFC][PATCH 04/11] kvm: Don't open code task_pid in kvm_vcpu

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Message-Id: <20180711024459.10654-4-ebiederm@xmission.com>
Date:   Tue, 10 Jul 2018 21:44:52 -0500
From:   "Eric W. Biederman" <ebiederm@...ssion.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Oleg Nesterov <oleg@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, Wen Yang <wen.yang99@....com.cn>,
        majiang <ma.jiang@....com.cn>,
        "Eric W. Biederman" <ebiederm@...ssion.com>
Subject: [RFC][PATCH 04/11] kvm: Don't open code task_pid in kvm_vcpu_ioctl

Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com>
---
 virt/kvm/kvm_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index ada21f47f22b..4c593acc4510 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2560,7 +2560,7 @@ static long kvm_vcpu_ioctl(struct file *filp,
 		if (arg)
 			goto out;
 		oldpid = rcu_access_pointer(vcpu->pid);
-		if (unlikely(oldpid != current->pids[PIDTYPE_PID].pid)) {
+		if (unlikely(oldpid != task_pid(current))) {
 			/* The thread running this VCPU changed. */
 			struct pid *newpid;
 
-- 
2.17.1