[dm-devel] [PATCH 2/2] dm: Avoid use-after-free of a mapped device

Jun'ichi Nomura j-nomura at ce.jp.nec.com
Tue Feb 26 00:30:57 UTC 2013


On 02/26/13 00:09, Bart Van Assche wrote:
> Without your patch my test failed after two or three iterations. With your patch my test is still running after 53 iterations. So if you want you can add Tested-by: Bart Van Assche <bvanassche at acm.org>.

Great. Thanks for testing.
I'll submit a patch with your Reported-by and Tested-by.

> Your e-mail and the above patch are also interesting because these explain why reverting to the v3.7 of drivers/md made my test succeed.
> 
> Note: even if this patch gets accepted I think it's still useful to modify blk_run_queue() such that it converts recursion into iteration.

Yes. That's a separate discussion.
Though I'm not sure if it's ok in general to implicitly convert
sync run-queue to async one.

-- 
Jun'ichi Nomura, NEC Corporation




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