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SubjectRe: [PATCH v6 10/12] mmap locking API: rename mmap_sem to mmap_lock
i build linux next kernel have the kernel/sys.c error.

2020-06-04 13:57 GMT+08:00, Michel Lespinasse <walken@google.com>:
> On Wed, Jun 3, 2020 at 9:35 PM youling 257 <youling257@gmail.com> wrote:
>> I have build error about kernel/sys.c,
>>
>> kernel/sys.c: In function ‘prctl_set_vma’:
>> kernel/sys.c:2392:18: error:
>> ‘struct mm_struct’ has no member named ‘mmap_sem’; did you mean
>> ‘mmap_base’?
>> 2392 | down_write(&mm->mmap_sem);
>> | ^~~~~~~~
>> | mmap_base
>> kernel/sys.c:2402:16: error:
>> ‘struct mm_struct’ has no member named ‘mmap_sem’; did you mean
>> ‘mmap_base’?
>> 2402 | up_write(&mm->mmap_sem);
>> | ^~~~~~~~
>> | mmap_base
>>
>> why not rename kernel/sys.c mmap_sem to mmap_lock?
>
> The proper fix would be to use the mmap locking apis defined in
> include/linux/mmap_lock.h instead.
>
> However I would like more information about your report. Did you apply
> the series yourself ? If so, what base tree did you apply it onto ? If
> not, what tree did you use that already included the series ?
>
> Thanks,
>
> --
> Michel "Walken" Lespinasse
> A program is never fully debugged until the last user dies.
>

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