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Re: [PATCHv2]brd: set max_discard_sectors properly

From Jinpu Wang <jinpu.wang@profitbricks.com>
Newsgroups linux.kernel
Subject Re: [PATCHv2]brd: set max_discard_sectors properly
Date 2016-04-18 10:40 +0200
Message-ID <rpcSR-2jV-7@gated-at.bofh.it> (permalink)
References <rocUW-4mc-15@gated-at.bofh.it> <ronGG-42G-7@gated-at.bofh.it>
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On Sat, Apr 16, 2016 at 3:50 AM, Christoph Hellwig <hch@infradead.org> wrote:
>> -     blk_queue_max_discard_sectors(brd->brd_queue, UINT_MAX);
>> +     blk_queue_max_discard_sectors(brd->brd_queue, UINT_MAX >> 9);
>
> Shouldn't we fix the issue by capping to UINT_MAX >> 9 inside
> blk_queue_max_discard_sectors?  That way we'll prevent against having
> issues like this in any other driver as well.


Thanks Christoph, make sense to me, will rework it to this way.

Regards,
Jack

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Re: [PATCHv2]brd: set max_discard_sectors properly Christoph Hellwig <hch@infradead.org> - 2016-04-16 04:00 +0200
  Re: [PATCHv2]brd: set max_discard_sectors properly Jinpu Wang <jinpu.wang@profitbricks.com> - 2016-04-18 10:40 +0200
    Re: [PATCHv2]brd: set max_discard_sectors properly Jinpu Wang <jinpu.wang@profitbricks.com> - 2016-04-18 16:00 +0200

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