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* [PATCH] memory: use RCU_READ_LOCK_GUARD
@ 2019-12-13 14:08 Paolo Bonzini
  2019-12-13 14:57 ` Dr. David Alan Gilbert
  0 siblings, 1 reply; 2+ messages in thread
From: Paolo Bonzini @ 2019-12-13 14:08 UTC (permalink / raw)
  To: qemu-devel; +Cc: Dr. David Alan Gilbert

Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 include/exec/memory.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/include/exec/memory.h b/include/exec/memory.h
index e499dc2..e42a9d7 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -2165,7 +2165,7 @@ MemTxResult address_space_read(AddressSpace *as, hwaddr addr,
 
     if (__builtin_constant_p(len)) {
         if (len) {
-            rcu_read_lock();
+            RCU_READ_LOCK_GUARD();
             fv = address_space_to_flatview(as);
             l = len;
             mr = flatview_translate(fv, addr, &addr1, &l, false, attrs);
@@ -2176,7 +2176,6 @@ MemTxResult address_space_read(AddressSpace *as, hwaddr addr,
                 result = flatview_read_continue(fv, addr, attrs, buf, len,
                                                 addr1, l, mr);
             }
-            rcu_read_unlock();
         }
     } else {
         result = address_space_read_full(as, addr, attrs, buf, len);
-- 
1.8.3.1



^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] memory: use RCU_READ_LOCK_GUARD
  2019-12-13 14:08 [PATCH] memory: use RCU_READ_LOCK_GUARD Paolo Bonzini
@ 2019-12-13 14:57 ` Dr. David Alan Gilbert
  0 siblings, 0 replies; 2+ messages in thread
From: Dr. David Alan Gilbert @ 2019-12-13 14:57 UTC (permalink / raw)
  To: Paolo Bonzini; +Cc: qemu-devel

* Paolo Bonzini (pbonzini@redhat.com) wrote:
> Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

> ---
>  include/exec/memory.h | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/include/exec/memory.h b/include/exec/memory.h
> index e499dc2..e42a9d7 100644
> --- a/include/exec/memory.h
> +++ b/include/exec/memory.h
> @@ -2165,7 +2165,7 @@ MemTxResult address_space_read(AddressSpace *as, hwaddr addr,
>  
>      if (__builtin_constant_p(len)) {
>          if (len) {
> -            rcu_read_lock();
> +            RCU_READ_LOCK_GUARD();
>              fv = address_space_to_flatview(as);
>              l = len;
>              mr = flatview_translate(fv, addr, &addr1, &l, false, attrs);
> @@ -2176,7 +2176,6 @@ MemTxResult address_space_read(AddressSpace *as, hwaddr addr,
>                  result = flatview_read_continue(fv, addr, attrs, buf, len,
>                                                  addr1, l, mr);
>              }
> -            rcu_read_unlock();
>          }
>      } else {
>          result = address_space_read_full(as, addr, attrs, buf, len);
> -- 
> 1.8.3.1
> 
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK



^ permalink raw reply	[flat|nested] 2+ messages in thread

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