Re: [PATCH 5.15/5.10 2/2] blk-iocost: do not WARN if iocg was already offlined

[Sasha Levin <sashal@kernel.org>]

[ Sasha's backport helper bot ]

Hi,

✅ All tests passed successfully. No issues detected.
No action required from the submitter.

The upstream commit SHA1 provided is correct: 01bc4fda9ea0a6b52f12326486f07a4910666cf6

WARNING: Author mismatch between patch and upstream commit:
Backport author: bin.lan.cn@windriver.com
Commit author: Li Nan<linan122@huawei.com>

Status in newer kernel trees:
6.14.y | Present (exact SHA1)
6.13.y | Present (exact SHA1)
6.12.y | Present (exact SHA1)
6.6.y | Present (different SHA1: 1c172ac7afe4)
6.1.y | Present (different SHA1: 2e962785b508)
5.15.y | Not found

Note: The patch differs from the upstream commit:
---
1:  01bc4fda9ea0a ! 1:  62b4e00c59eb3 blk-iocost: do not WARN if iocg was already offlined
    @@ Metadata
      ## Commit message ##
         blk-iocost: do not WARN if iocg was already offlined
     
    +    [ Upstream commit 01bc4fda9ea0a6b52f12326486f07a4910666cf6 ]
    +
         In iocg_pay_debt(), warn is triggered if 'active_list' is empty, which
         is intended to confirm iocg is active when it has debt. However, warn
         can be triggered during a blkcg or disk removal, if iocg_waitq_timer_fn()
    @@ Commit message
         Acked-by: Tejun Heo <tj@kernel.org>
         Link: https://lore.kernel.org/r/20240419093257.3004211-1-linan666@huaweicloud.com
         Signed-off-by: Jens Axboe <axboe@kernel.dk>
    +    Signed-off-by: Bin Lan <bin.lan.cn@windriver.com>
    +    Signed-off-by: He Zhe <zhe.he@windriver.com>
     
      ## block/blk-iocost.c ##
     @@ block/blk-iocost.c: static void iocg_pay_debt(struct ioc_gq *iocg, u64 abs_vpay,
---

Results of testing on various branches:

| Branch                    | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| stable/linux-5.15.y       |  Success    |  Success   |