On 7/14/19 8:34 PM, Zhengyuan Liu wrote:
>
> On 7/14/19 5:43 AM, Jens Axboe wrote:
>> On 7/12/19 9:58 PM, Zhengyuan Liu wrote:
>>> sq->cached_sq_head and cq->cached_cq_tail are both unsigned int.
>>> if cached_sq_head gets overflowed before cached_cq_tail, then we
>>> may miss a barrier req. As ca
On 7/12/19 9:58 PM, Zhengyuan Liu wrote:
> sq->cached_sq_head and cq->cached_cq_tail are both unsigned int.
> if cached_sq_head gets overflowed before cached_cq_tail, then we
> may miss a barrier req. As cached_cq_tail moved always following
> cached_sq_head, the NQ should be enough.
This (and the
sq->cached_sq_head and cq->cached_cq_tail are both unsigned int.
if cached_sq_head gets overflowed before cached_cq_tail, then we
may miss a barrier req. As cached_cq_tail moved always following
cached_sq_head, the NQ should be enough.
Signed-off-by: Zhengyuan Liu
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fs/io_uring.c | 2 +-
1 fil
