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authorPhilippe Mathieu-Daudé <philmd@redhat.com>2021-05-23 11:40:40 +0200
committerLaurent Vivier <laurent@vivier.eu>2021-07-09 18:42:46 +0200
commit4c6dd9a0262d39eb8570ba077b5320df682603d1 (patch)
tree7a8a2007917f370cee3fb6e2aaed65fd47aa7764 /hw/virtio
parenteb1960aac1f5b2cad24de300bda2726d63700290 (diff)
downloadqemu-4c6dd9a0262d39eb8570ba077b5320df682603d1.zip
hw/virtio: Document *_should_notify() are called within rcu_read_lock()
Such comments make reviewing this file somehow easier. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210523094040.3516968-1-philmd@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'hw/virtio')
-rw-r--r--hw/virtio/virtio.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 6dcf3baf56..874377f37a 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -2447,6 +2447,7 @@ static void virtio_set_isr(VirtIODevice *vdev, int value)
}
}
+/* Called within rcu_read_lock(). */
static bool virtio_split_should_notify(VirtIODevice *vdev, VirtQueue *vq)
{
uint16_t old, new;
@@ -2483,6 +2484,7 @@ static bool vring_packed_need_event(VirtQueue *vq, bool wrap,
return vring_need_event(off, new, old);
}
+/* Called within rcu_read_lock(). */
static bool virtio_packed_should_notify(VirtIODevice *vdev, VirtQueue *vq)
{
VRingPackedDescEvent e;