On Tue, 1 Mar 2022 20:39:19 +0800, Laibin Qiu wrote:
> 1.In current process, all bio will set the BIO_THROTTLED flag
> after __blk_throtl_bio().
>
> 2.If bio needs to be throttled, it will start the timer and
> stop submit bio directly. Bio will submit in
> blk_throtl_dispatch_work_fn() when the timer expires.But in
> the current process, if bio is throttled. The BIO_THROTTLED
> will be set to bio after timer start. If the bio has been
> completed, it may cause use-after-free blow.
>
> [...]
Applied, thanks!
[1/1] blk-throttle: Set BIO_THROTTLED when bio has been throttled
commit: 5a011f889b4832aa80c2a872a5aade5c48d2756f
Best regards,
--
Jens Axboe
