[PATCH 0/2] block: Fix deadlock when merging requests with BFQ

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To: Jens Axboe <axboe@xxxxxxxxx>
Subject: [PATCH 0/2] block: Fix deadlock when merging requests with BFQ
From: Jan Kara <jack@xxxxxxx>
Date: Fri, 21 May 2021 00:33:51 +0200
Cc: <linux-block@xxxxxxxxxxxxxxx>, Khazhy Kumykov <khazhy@xxxxxxxxxx>, Paolo Valente <paolo.valente@xxxxxxxxxx>, Jan Kara <jack@xxxxxxx>

Hello,

This patch series fixes a lockdep complaint and a possible deadlock that
can happen when blk_mq_sched_try_insert_merge() merges and frees a request.

								Honza

Follow-Ups:
- [PATCH 2/2] blk: Fix lock inversion between ioc lock and bfqd lock
  - From: Jan Kara
- [PATCH 1/2] block: Do not merge recursively in elv_attempt_insert_merge()
  - From: Jan Kara

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