From: Sean Christopherson <seanjc@google.com>
To: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>,
Alex Williamson <alex.williamson@redhat.com>
Cc: kvm@vger.kernel.org, virtualization@lists.linux.dev,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Kevin Tian <kevin.tian@intel.com>,
Oliver Upton <oliver.upton@linux.dev>,
David Matlack <dmatlack@google.com>,
Like Xu <like.xu.linux@gmail.com>,
Binbin Wu <binbin.wu@linux.intel.com>,
Yong He <alexyonghe@tencent.com>
Subject: [PATCH v2 2/8] irqbypass: Drop superfluous might_sleep() annotations
Date: Fri, 16 May 2025 16:07:28 -0700 [thread overview]
Message-ID: <20250516230734.2564775-3-seanjc@google.com> (raw)
In-Reply-To: <20250516230734.2564775-1-seanjc@google.com>
Drop superfluous might_sleep() annotations from irqbypass, mutex_lock()
provides all of the necessary tracking.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
virt/lib/irqbypass.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/virt/lib/irqbypass.c b/virt/lib/irqbypass.c
index 080c706f3b01..28a4d933569a 100644
--- a/virt/lib/irqbypass.c
+++ b/virt/lib/irqbypass.c
@@ -90,8 +90,6 @@ int irq_bypass_register_producer(struct irq_bypass_producer *producer)
if (!producer->token)
return -EINVAL;
- might_sleep();
-
mutex_lock(&lock);
list_for_each_entry(tmp, &producers, node) {
@@ -136,8 +134,6 @@ void irq_bypass_unregister_producer(struct irq_bypass_producer *producer)
if (!producer->token)
return;
- might_sleep();
-
mutex_lock(&lock);
list_for_each_entry(tmp, &producers, node) {
@@ -176,8 +172,6 @@ int irq_bypass_register_consumer(struct irq_bypass_consumer *consumer)
!consumer->add_producer || !consumer->del_producer)
return -EINVAL;
- might_sleep();
-
mutex_lock(&lock);
list_for_each_entry(tmp, &consumers, node) {
@@ -222,8 +216,6 @@ void irq_bypass_unregister_consumer(struct irq_bypass_consumer *consumer)
if (!consumer->token)
return;
- might_sleep();
-
mutex_lock(&lock);
list_for_each_entry(tmp, &consumers, node) {
--
2.49.0.1112.g889b7c5bd8-goog
next prev parent reply other threads:[~2025-05-16 23:07 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-16 23:07 [PATCH v2 0/8] irqbypass: Cleanups and a perf improvement Sean Christopherson
2025-05-16 23:07 ` [PATCH v2 1/8] irqbypass: Drop pointless and misleading THIS_MODULE get/put Sean Christopherson
2025-05-16 23:07 ` Sean Christopherson [this message]
2025-05-16 23:07 ` [PATCH v2 3/8] irqbypass: Take ownership of producer/consumer token tracking Sean Christopherson
2025-05-16 23:07 ` [PATCH v2 4/8] irqbypass: Explicitly track producer and consumer bindings Sean Christopherson
2025-05-16 23:07 ` [PATCH v2 5/8] irqbypass: Use paired consumer/producer to disconnect during unregister Sean Christopherson
2025-05-16 23:07 ` [PATCH v2 6/8] irqbypass: Use guard(mutex) in lieu of manual lock+unlock Sean Christopherson
2025-05-16 23:07 ` [PATCH v2 7/8] irqbypass: Use xarray to track producers and consumers Sean Christopherson
2025-05-16 23:07 ` [PATCH v2 8/8] irqbypass: Require producers to pass in Linux IRQ number during registration Sean Christopherson
2025-05-23 1:53 ` Tian, Kevin
2025-05-18 20:10 ` [PATCH v2 0/8] irqbypass: Cleanups and a perf improvement Michael S. Tsirkin
2025-06-02 18:54 ` Alex Williamson
2025-06-02 23:30 ` Sean Christopherson
2025-06-24 19:38 ` Sean Christopherson
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