On 2014-05-16 09:43, Ming Lei wrote:
On Fri, May 16, 2014 at 11:32 PM, Jens Axboe wrote:
On 2014-05-16 09:31, Ming Lei wrote:
When there isn't enough vring descriptor for adding to vq,
blk-mq will be put as stopped state until some of pending
descriptors are completed & freed.
Unfortunately,
On Fri, May 16, 2014 at 11:32 PM, Jens Axboe wrote:
> On 2014-05-16 09:31, Ming Lei wrote:
>>
>> When there isn't enough vring descriptor for adding to vq,
>> blk-mq will be put as stopped state until some of pending
>> descriptors are completed & freed.
>>
>> Unfortunately, the vq's interrupt may
When there isn't enough vring descriptor for adding to vq,
blk-mq will be put as stopped state until some of pending
descriptors are completed & freed.
Unfortunately, the vq's interrupt may come just before
blk-mq's BLK_MQ_S_STOPPED flag is set, so the blk-mq will
still be kept as stopped even tho
On 2014-05-16 09:31, Ming Lei wrote:
When there isn't enough vring descriptor for adding to vq,
blk-mq will be put as stopped state until some of pending
descriptors are completed & freed.
Unfortunately, the vq's interrupt may come just before
blk-mq's BLK_MQ_S_STOPPED flag is set, so the blk-mq
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