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Re: [Qemu-devel] [PATCH 10/15] exec: RCUify AddressSpaceDispatch


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH 10/15] exec: RCUify AddressSpaceDispatch
Date: Tue, 03 Feb 2015 11:07:06 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0


On 28/01/2015 06:45, Fam Zheng wrote:
> If I understand it, this code doesn't hold iothread lock when releasing the
> memory region, but in one of the memroy region destructors,
> memory_region_destructor_ram_from_ptr:
> 
>     void qemu_ram_free_from_ptr(ram_addr_t addr)
>     {
>         RAMBlock *block;
> 
>         /* This assumes the iothread lock is taken here too.  */
>         qemu_mutex_lock_ramlist();
>         QTAILQ_FOREACH(block, &ram_list.blocks, next) {
> ...
> 
> Is the comment stale or I missed something?

No, you're right.

Paolo



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