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* [PATCH 0/2 v4] block: Fix deadlock when merging requests with BFQ
@ 2021-06-23  9:36 Jan Kara
  2021-06-23  9:36 ` [PATCH 1/2] bfq: Remove merged request already in bfq_requests_merged() Jan Kara
                   ` (2 more replies)
  0 siblings, 3 replies; 7+ messages in thread
From: Jan Kara @ 2021-06-23  9:36 UTC (permalink / raw)
  To: Jens Axboe; +Cc: linux-block, Paolo Valente, Jan Kara

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.
Jens, can you please merge the series? It seems to have slipped through last
time when I posted it. Thanks!

Changes since v3:
* Rebased on top of for-next branch in axboe/linux-block.git

Changes since v2:
* Added reviewed-by tags

Changes since v1:
* Remove patch disabling recursing request merging during request insertion
* Modified BFQ to cleanup merged request already in its .merge_requests handler
* Added code to handle multiple requests that need freeing after being merged

								Honza

^ permalink raw reply	[flat|nested] 7+ messages in thread
* [PATCH 0/2 v3] block: Fix deadlock when merging requests with BFQ
@ 2021-05-28 12:30 Jan Kara
  2021-05-28 12:30 ` [PATCH 1/2] bfq: Remove merged request already in bfq_requests_merged() Jan Kara
  0 siblings, 1 reply; 7+ messages in thread
From: Jan Kara @ 2021-05-28 12:30 UTC (permalink / raw)
  To: Jens Axboe; +Cc: linux-block, Khazhy Kumykov, Ming Lei, Paolo Valente, Jan Kara

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.
Jens, can you please merge the series? Thanks!

Changed since v2:
* Added reviewed-by tags

Changes since v1:
* Remove patch disabling recursing request merging during request insertion
* Modified BFQ to cleanup merged request already in its .merge_requests handler
* Added code to handle multiple requests that need freeing after being merged

								Honza

^ permalink raw reply	[flat|nested] 7+ messages in thread
* [PATCH 0/2 v2] block: Fix deadlock when merging requests with BFQ
@ 2021-05-24 10:04 Jan Kara
  2021-05-24 10:04 ` [PATCH 1/2] bfq: Remove merged request already in bfq_requests_merged() Jan Kara
  0 siblings, 1 reply; 7+ messages in thread
From: Jan Kara @ 2021-05-24 10:04 UTC (permalink / raw)
  To: Jens Axboe; +Cc: linux-block, Khazhy Kumykov, Paolo Valente, Ming Lei, Jan Kara

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.

Changes since v1:
* Remove patch disabling recursing request merging during request insertion
* Modified BFQ to cleanup merged request already in its .merge_requests handler
* Added code to handle multiple requests that need freeing after being merged

								Honza

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2021-06-25  0:44 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-06-23  9:36 [PATCH 0/2 v4] block: Fix deadlock when merging requests with BFQ Jan Kara
2021-06-23  9:36 ` [PATCH 1/2] bfq: Remove merged request already in bfq_requests_merged() Jan Kara
2021-06-23  9:36 ` [PATCH 2/2] blk: Fix lock inversion between ioc lock and bfqd lock Jan Kara
2021-06-25  0:44 ` [PATCH 0/2 v4] block: Fix deadlock when merging requests with BFQ Jens Axboe
  -- strict thread matches above, loose matches on Subject: below --
2021-05-28 12:30 [PATCH 0/2 v3] " Jan Kara
2021-05-28 12:30 ` [PATCH 1/2] bfq: Remove merged request already in bfq_requests_merged() Jan Kara
2021-05-24 10:04 [PATCH 0/2 v2] block: Fix deadlock when merging requests with BFQ Jan Kara
2021-05-24 10:04 ` [PATCH 1/2] bfq: Remove merged request already in bfq_requests_merged() Jan Kara
2021-05-28  9:29   ` Paolo Valente

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