Matthew Wilcox <willy@xxxxxxxxxxxxx> writes:
> On Thu, Apr 06, 2023 at 09:53:37AM -0700, Stefan Roesch wrote:
>> + case PR_SET_MEMORY_MERGE:
>> + if (mmap_write_lock_killable(me->mm))
>> + return -EINTR;
>> +
>> + if (arg2) {
>> + int err = ksm_add_mm(me->mm);
>> + if (err)
>> + return err;
>
> You'll return to userspace with the mutex held, no?
>
Thanks for catching this, I'll fix it in the next version.
