linux-kernel - [PATCH 00/13] A few bugfix and cleanup patches for blk-mq

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Message-Id: <20221223125223.1687670-1-shikemeng@huaweicloud.com>
Date:   Fri, 23 Dec 2022 20:52:10 +0800
From:   Kemeng Shi <shikemeng@...weicloud.com>
To:     axboe@...nel.dk, dwagner@...e.de, hare@...e.de,
        ming.lei@...hat.com, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     hch@....de, john.garry@...wei.com, shikemeng@...weicloud.com
Subject: [PATCH 00/13] A few bugfix and cleanup patches for blk-mq

Hi, this series contain several bugfix patches to fix potential io
hung and a few cleanup patches to remove stale codes and unnecessary
check. Most changes are in request issue and dispatch path. Thanks.

Kemeng Shi (13):
  blk-mq: avoid sleep in blk_mq_alloc_request_hctx
  blk-mq: remove stale comment for blk_mq_sched_mark_restart_hctx
  blk-mq: wait on correct sbitmap_queue in blk_mq_mark_tag_wait
  blk-mq: Fix potential io hung for shared sbitmap per tagset
  blk-mq: remove unnecessary list_empty check in
    blk_mq_try_issue_list_directly
  blk-mq: remove unncessary error count and flush in
    blk_mq_plug_issue_direct
  blk-mq: remove error count and unncessary flush in
    blk_mq_try_issue_list_directly
  blk-mq: simplify flush check in blk_mq_dispatch_rq_list
  blk-mq: remove unnecessary error count and check in
    blk_mq_dispatch_rq_list
  blk-mq: remove set bd->last when get driver tag for next request fails
  blk-mq: remove unncessary from_schedule parameter in
    blk_mq_plug_issue_direct
  blk-mq: use switch/case to improve readability in
    blk_mq_try_issue_list_directly
  blk-mq: correct stale comment of .get_budget

 block/blk-mq-sched.c |   7 ++-
 block/blk-mq.c       | 103 ++++++++++++++++++-------------------------
 2 files changed, 46 insertions(+), 64 deletions(-)

-- 
2.30.0