Messages in this thread | | | Date | Sat, 18 May 2024 08:52:54 +0800 | Subject | Re: [PATCH stable] block/mq-deadline: fix different priority request on the same zone | From | Wu Bo <> |
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On 2024/5/18 01:53, Bart Van Assche wrote: > On 5/16/24 18:44, Wu Bo wrote: >> So I figured this solution to fix this priority issue on zoned >> device. It sure >> raises the overhead but can do fix it. > > Something I should have realized earlier is that this patch is not > necessary with the latest upstream kernel (v6.10-rc1). Damien's zoned > write plugging patch series has been merged. Hence, I/O schedulers, > including the mq-deadline I/O schedulers, will only see a single > zoned write at a time per zone. So it is no longer possible that > zoned writes are reordered by the I/O scheduler because of their I/O > priorities. Hi Bart,
Yes, I noticed that 'zone write plugging' has been merged to latest branch. But it seems hard to backport to old version which mq-deadline priority feature has been merged. So is it possible to apply this fix to old versions?
Thanks, Wu Bo > > Thanks, > > Bart.
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