linux-kernel - Re: [PATCH v4 4/4] Revert "scsi: core: run queue if SCSI device queue isn't ready and queue is idle"

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 13 Apr 2020 13:51:22 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Douglas Anderson <dianders@...omium.org>
Cc:     axboe@...nel.dk, jejb@...ux.ibm.com, martin.petersen@...cle.com,
        paolo.valente@...aro.org, groeck@...omium.org,
        Gwendal Grignou <gwendal@...omium.org>,
        linux-scsi@...r.kernel.org, linux-block@...r.kernel.org,
        Ming Lei <ming.lei@...hat.com>, sqazi@...gle.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 4/4] Revert "scsi: core: run queue if SCSI device queue isn't ready and queue is idle"


Douglas,

> This reverts commit 7e70aa789d4a0c89dbfbd2c8a974a4df717475ec.
>
> Now that we have the patches ("blk-mq: In blk_mq_dispatch_rq_list()
> "no budget" is a reason to kick") and ("blk-mq: Rerun dispatching in
> the case of budget contention") we should no longer need the fix in
> the SCSI code.  Revert it, resolving conflicts with other patches that
> have touched this code.
>
> With this revert (and the two new patches) I can run the script that
> was in commit 7e70aa789d4a ("scsi: core: run queue if SCSI device
> queue isn't ready and queue is idle") in a loop with no failure.  If I
> do this revert without the two new patches I can easily get a failure.
>
> Signed-off-by: Douglas Anderson <dianders@...omium.org>

Looks good to me, never really liked the original commit.

Acked-by: Martin K. Petersen <martin.petersen@...cle.com>

-- 
Martin K. Petersen	Oracle Linux Engineering