linux-kernel - Re: [patch 0/7] Add TRIM support for raid linear/0/1/10

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Date:	Wed, 14 Mar 2012 09:30:19 +0800
From:	Shaohua Li <shli@...nel.org>
To:	Holger Kiehl <Holger.Kiehl@....de>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-raid@...r.kernel.org" <linux-raid@...r.kernel.org>,
	"neilb@...e.de" <neilb@...e.de>,
	"axboe@...nel.dk" <axboe@...nel.dk>
Subject: Re: [patch 0/7] Add TRIM support for raid linear/0/1/10

2012/3/13 Holger Kiehl <Holger.Kiehl@....de>:
> On Tue, 13 Mar 2012, Shaohua Li wrote:
>
>> Thanks for testing. This is very wield, the req->__data_len is wrong.
>> Is this a clean build?
>>
> I just downloaded linux-3.3-rc7.tar.bz2 from kernel.org and applied
> your patches again. The result is the same.
>
> Am I the only one experiencing these problems?
Martin Petersen pointed out scsi layer doesn't support discard merge, which
might be the reason you see the error message (my drive isn't a scsi device).
can you please try attached patch?

Thanks,
Shaohua

Download attachment "blk-discard-nomerge.patch" of type "application/octet-stream" (904 bytes)