On 1/9/23 7:47 AM, Yishai Hadas wrote: > The last_pg is wrong, it is actually the first page of the last > scatterlist element. To get the last page of the last scatterlist > element we have to add prv->length. So it is checking mergability > against the wrong page, Further, a SG element is not guaranteed to end > on a page boundary, so we have to check the sub page location also for > merge eligibility. > > Fix the above by checking physical contiguity, compute the actual last > page and then call pages_are_mergable(). Reviewed-by: Jens Axboe <axboe@xxxxxxxxx> Andrew, can you pick this one up? -- Jens Axboe
