On Wed, 30 Jul 2025 13:16:06 +0530, Nilay Shroff wrote:

There have been a few reports[1] indicating potential lockdep warnings due
to a lock dependency from the percpu allocator to the elevator lock. This
patch series aims to eliminate that dependency.

The series consists of three patches:
The first patch is preparatory patch and just move elevator queue
allocation logic from ->init_sched into blk_mq_init_sched.

[...]

Applied, thanks!

[1/3] block: move elevator queue allocation logic into blk_mq_init_sched
      commit: 49811586be373e26a3ab52f54e0dfa663c02fddd
[2/3] block: fix lockdep warning caused by lock dependency in elv_iosched_store
      commit: f5a6604f7a4405450e4a1f54e5430f47290c500f
[3/3] block: fix potential deadlock while running nr_hw_queue update
      commit: 04225d13aef11b2a539014def5e47d8c21fd74a5

Best regards,
-- 
Jens Axboe