Re: [PATCH v8 0/8] nbd: eliminate queue freeze/unfreeze overhead in connection setup

On Wed, 05 Aug 2026 20:29:22 +0800, Yang Erkun wrote:
> This series eliminates the blk_mq_freeze_queue()/unfreeze_queue()
> overhead that currently occurs during nbd connection setup(nbd provide
> ondemand and was using in AI sandbox e2b[1] to mount and attach rootfs).
> Each freeze cycle will introduce a RCU grace which was significant
> with multi-core system.
> 
> time nbd-client --name myexport --connections 96 127.0.0.1 1234
> 
> [...]

Applied, thanks!

[1/8] nbd: simplify find_fallback() by removing redundant logic
      commit: fe247030f1ce74e6bb917e219fe152270613073d
[2/8] nbd: disallow NBD_SET_SOCK on an active device
      commit: 04d8fb23e520419a283dd53c1d9cdfb7c5b1705e
[3/8] nbd: clear queue limits on disconnect
      commit: 0fdee7c5fa886554503001cecea049f053237381
[4/8] nbd: remove queue freeze in nbd_add_socket
      commit: 285908f554fe32d9ca7cb7c3a03a05144faeb461
[5/8] nbd: skip queue freeze when setting size at device startup
      commit: db285268df7948f6edbb7c8bb7cd02da3ceec6b4
[6/8] nbd: factor out a nbd_genl_foreach_sock
      commit: f8d21c590e55d629abed675554b186291ac08915
[7/8] nbd: remove queue freeze for newly created nbd from netlink path
      commit: a9d414b4a15c69b5389da3ec08f23e9f2926c52a
[8/8] nbd: add pre_defined_connections module parameter for pre-created devices
      commit: 326d49039c10b65522ac7277b19b9b5c42ed1aeb

Best regards,
-- 
Jens Axboe