On 2014-06-24, Andy Lutomirski wrote:
>> + /* Make bounds tables and bouds directory unlocked. */
>> + if (vm_flags & VM_LOCKED)
>> + vm_flags &= ~VM_LOCKED;
>
> Why? I would expect MCL_FUTURE to lock these.
>
Andy, I was just a little confused about LOCKED & POPULATE earlier and I thought VM_LOCKED is not necessary for MPX specific bounds tables. Now, this checking should be removed, and there should be mm_populate() for VM_LOCKED case after mmap_region():
if (!IS_ERR_VALUE(addr) && (vm_flags & VM_LOCKED))
mm_populate(addr, len);
Thanks,
Qiaowei
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