On 26/01/2015 07:24, Fam Zheng wrote:
>> > Do the entire lookup under RCU, which avoids atomic operations.
> address_space_get_flatview() already is RCU protected, I don't see why this
> patch is necessary. Could you explain?
It's just an optimization; flatview_ref/flatview_unref do
atomic_inc/a
On Thu, 01/22 15:47, Paolo Bonzini wrote:
> Do the entire lookup under RCU, which avoids atomic operations.
address_space_get_flatview() already is RCU protected, I don't see why this
patch is necessary. Could you explain?
And there is one question below:
>
> Signed-off-by: Paolo Bonzini
> ---
Do the entire lookup under RCU, which avoids atomic operations.
Signed-off-by: Paolo Bonzini
---
memory.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/memory.c b/memory.c
index a844ced..577e87c 100644
--- a/memory.c
+++ b/memory.c
@@ -1828,7 +1828,8 @@ MemoryRegionSec
