Messages in this thread | | | Date | Tue, 11 Jul 2023 19:06:20 +0800 | Subject | Re: [PATCH 1/2] blk-flush: fix rq->flush.seq for post-flush requests | From | Chengming Zhou <> |
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On 2023/7/10 21:30, Christoph Hellwig wrote: > On Mon, Jul 10, 2023 at 02:47:04PM +0800, chengming.zhou@linux.dev wrote: >> From: Chengming Zhou <zhouchengming@bytedance.com> >> >> If the policy == (REQ_FSEQ_DATA | REQ_FSEQ_POSTFLUSH), it means that the >> data sequence and post-flush sequence need to be done for this request. >> >> The rq->flush.seq should record what sequences have been done (or don't >> need to be done). So in this case, pre-flush doesn't need to be done, >> we should init rq->flush.seq to REQ_FSEQ_PREFLUSH not REQ_FSEQ_POSTFLUSH. >> >> Of course, this doesn't cause any problem in fact, since pre-flush and >> post-flush sequence do the same thing for now. > > I wonder if it really doesn't cause any problems, but the change for > sure looks good: > > Reviewed-by: Christoph Hellwig <hch@lst.de> > > It should probably go before your other flush optimizations and maybe > grow a fixes tag.
Ok, will add a Fixes tag and send it as a separate patch since it's a bug fix.
Thanks.
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