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From: David Matlack <dmatlack@google.com>
To: pbonzini@redhat.com
Cc: David Matlack <dmatlack@google.com>,
	kvm@vger.kernel.org, Marcelo Tosatti <mtosatti@redhat.com>,
	Gleb Natapov <gleb@redhat.com>, Rik van Riel <riel@redhat.com>,
	seanjc@google.com, bgardon@google.com
Subject: [PATCH RESEND 2/2] Revert "KVM: set owner of cpu and vm file operations"
Date: Thu,  3 Mar 2022 18:33:28 +0000	[thread overview]
Message-ID: <20220303183328.1499189-3-dmatlack@google.com> (raw)
In-Reply-To: <20220303183328.1499189-1-dmatlack@google.com>

This reverts commit 3d3aab1b973b01bd2a1aa46307e94a1380b1d802.

Now that the KVM module's lifetime is tied to kvm.users_count, there is
no need to also tie it's lifetime to the lifetime of the VM and vCPU
file descriptors.

Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: David Matlack <dmatlack@google.com>
---
 virt/kvm/kvm_main.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index b59f0a29dbd5..73b8f70e16cc 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3684,7 +3684,7 @@ static int kvm_vcpu_release(struct inode *inode, struct file *filp)
 	return 0;
 }
 
-static struct file_operations kvm_vcpu_fops = {
+static const struct file_operations kvm_vcpu_fops = {
 	.release        = kvm_vcpu_release,
 	.unlocked_ioctl = kvm_vcpu_ioctl,
 	.mmap           = kvm_vcpu_mmap,
@@ -4735,7 +4735,7 @@ static long kvm_vm_compat_ioctl(struct file *filp,
 }
 #endif
 
-static struct file_operations kvm_vm_fops = {
+static const struct file_operations kvm_vm_fops = {
 	.release        = kvm_vm_release,
 	.unlocked_ioctl = kvm_vm_ioctl,
 	.llseek		= noop_llseek,
@@ -5744,8 +5744,6 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
 		goto out_free_5;
 
 	kvm_chardev_ops.owner = module;
-	kvm_vm_fops.owner = module;
-	kvm_vcpu_fops.owner = module;
 
 	r = misc_register(&kvm_dev);
 	if (r) {
-- 
2.35.1.616.g0bdcbb4464-goog


  parent reply	other threads:[~2022-03-03 18:33 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-03 18:33 [PATCH RESEND 0/2] KVM: Prevent module exit until all VMs are freed David Matlack
2022-03-03 18:33 ` [PATCH RESEND 1/2] " David Matlack
2022-03-08 21:40   ` Sean Christopherson
2022-03-08 22:28     ` David Matlack
2022-03-08 23:08       ` Sean Christopherson
2022-03-08 23:44         ` David Matlack
2022-03-08 23:43     ` David Matlack
2022-03-15 15:43   ` Murilo Opsfelder Araújo
2022-03-15 20:45     ` Paolo Bonzini
2022-03-03 18:33 ` David Matlack [this message]
2022-03-08 21:40   ` [PATCH RESEND 2/2] Revert "KVM: set owner of cpu and vm file operations" Sean Christopherson
2022-03-15 20:49 ` [PATCH RESEND 0/2] KVM: Prevent module exit until all VMs are freed Paolo Bonzini

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