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[PATCH v2] hw/virtio: Document *_should_notify() are called within rcu_r
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH v2] hw/virtio: Document *_should_notify() are called within rcu_read_lock() |
Date: |
Sun, 23 May 2021 11:40:40 +0200 |
Such comments make reviewing this file somehow easier.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
v2: only one space before end of comment (mst)
---
hw/virtio/virtio.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index e02544b2df7..130e3568409 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -2449,6 +2449,7 @@ 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;
@@ -2485,6 +2486,7 @@ 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;
--
2.26.3
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