From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 13 Dec 2019 14:06:45 +0000 (+0100)
Subject: memory: use RCU_READ_LOCK_GUARD
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=293a733df783c242f2e67abb16e8ab180e7d5eed;p=qmiga%2Fqemu.git

memory: use RCU_READ_LOCK_GUARD

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

diff --git a/include/exec/memory.h b/include/exec/memory.h
index 27a84e0cc3..9d3fdb5696 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -2171,7 +2171,7 @@ 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);
@@ -2182,7 +2182,6 @@ 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);