Messages in this thread | | | From | Zhangfei Gao <> | Date | Wed, 16 Nov 2016 09:44:26 +0800 | Subject | Re: [PATCH 10/11] hisi_sas: use atomic64_t for hisi_sas_device.running_req |
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On Mon, Nov 7, 2016 at 8:48 PM, John Garry <john.garry@huawei.com> wrote: > Sometimes the value of hisi_sas_device.running_req > would go negative unless we have the check for > running_req >= 0 before trying to decrement. > > This is because using running_req is not thread-safe. > > As such, the value for running_req may be actually incorrect, > so use atomic64_t instead. > > Signed-off-by: John Garry <john.garry@huawei.com> > Reviewed-by: Xiang Chen <chenxiang66@hisilicon.com>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
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