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exec: protect mru_block with RCU

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Hence, freeing a RAMBlock has to be switched to call_rcu.

Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2013-09-09 17:58:40 +02:00
parent 439c5e02d5
commit 43771539d4
2 changed files with 39 additions and 15 deletions
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2
include/exec/cpu-all.h
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@ -24,6 +24,7 @@
#include "exec/memory.h"
#include "qemu/thread.h"
#include "qom/cpu.h"
#include "qemu/rcu.h"
/* some important defines:
*
@ -268,6 +269,7 @@ CPUArchState *cpu_copy(CPUArchState *env);
typedef struct RAMBlock RAMBlock;
struct RAMBlock {
struct rcu_head rcu;
struct MemoryRegion *mr;
uint8_t *host;
ram_addr_t offset;