Re: [PATCH v2 0/1] bsg: fix regression resulting in panics when sending commands via BSG

From: Jens Axboe
Date: Thu Aug 24 2017 - 10:22:56 EST


On 08/23/2017 05:57 PM, Benjamin Block wrote:
> Hello all,
>
> This is the second try for fixing the regression in the BSG-interface that
> exists since v4.11 (for more infos see the first series).
>
> I separated my other changes from the bug-fix so that it is easier to apply
> if judged good. I will rebase my cleanups I sent in v1 and send them when I
> get a bit more time. But the regression-fix is more important, so here's
> that.
>
> I did some more tests on it than on v1, including some heavy parallel I/O
> on the same blk-queue using both BSG and the normal SCSI-stack at the same
> time (throwing some intentional bad commands in it too). That seemed to
> work all well enough - i.e. it didn't crash and got the expected results. I
> haven't done any external error-inject, but IMO that would be beyond the
> scope right now.
>
> The fix is based on Christoph's idea, I discussed this with him off-list
> already.
>
> I rebased the series on Jens' for-next.

Added for 4.13, thanks.

--
Jens Axboe