[PATCH -next] ashmem: Fix ashmem_shrink deadlock.

[Neil Zhang]

2013/5/14 Greg Kroah-Hartman <gregkh at linuxfoundation.org>:
> On Wed, May 01, 2013 at 09:56:13AM -0400, Robert Love wrote:
>> Don't acquire ashmem_mutex in ashmem_shrink if we've somehow recursed
>> into the
>> shrinker code from within ashmem. Just bail out, avoiding a deadlock.
>> This is
>> fine, as ashmem cache pruning is advisory anyhow.
>>
>> Signed-off-by: Robert Love <rlove at google.com>
>> ---
>>  drivers/staging/android/ashmem.c | 6 +++++-
>>  1 file changed, 5 insertions(+), 1 deletion(-)
>
> Based on Andrew's review comments, I'll drop this from my queue and wait
> for a "better" fix for this.
>
> thanks,
>
> greg k-h
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We found the similar issue these days.
Add RaulXiong to paste the call stack.

Best Regards,
Neil Zhang