Re: [PATCH] mmc: block: fix the host's claim-release in special request

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

On Thu, Mar 14 2013, Ulf Hansson wrote:
>> 2013/3/14 Seungwon Jeon <tgih.jun@xxxxxxxxxxx>:
>>> For normal request mmc_blk_issue_rq is called twice with asynchronous
>>> transfer(cur and prev). Host's claim and release can be done in each
>>> mmc_blk_issue_rq. However, Special request is currently excluded in
>>> asynchronous transfer. After special request is finished, if there is
>>> no new request, mmc_release_host won't be called in mmc_blk_issue_rq.
>>> The problem is founded during mmc_suspend.
>>>
>>> [<c0541124>] (__schedule+0x0/0x78c) from [<c05419e8>] (schedule+0x38/0x78)
>>> [<c05419b0>] (schedule+0x0/0x78) from [<c03a843c>]
>>> (__mmc_claim_host+0xac/0x1b4)
>>> [<c03a8390>] (__mmc_claim_host+0x0/0x1b4) from [<c03ac98c>]
>>> (mmc_suspend+0x28/0x9c)
>>> [<c03ac964>] (mmc_suspend+0x0/0x9c) from [<c03aad24>]
>>> (mmc_suspend_host+0xb4/0x194)
>>> ...
>>>
>>> Reported-by: Johan Rudholm <jrudholm@xxxxxxxxx>
>>> Signed-off-by: Seungwon Jeon <tgih.jun@xxxxxxxxxxx>
>>
>> Thank you for the quick response and fix! This fixes the problem. So
>> please include my
>>
>> Tested-by: Johan Rudholm <johan.rudholm@xxxxxxxxxxxxxx>
>
> Chris, could you send this for the 3.9 rc, since it is a bugfix?

Thanks, pushed to mmc-next for 3.9-rc.

- Chris.
-- 
Chris Ball   <cjb@xxxxxxxxxx>   <http://printf.net/>
One Laptop Per Child
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux