From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: Zhaoyang Li <lizy04@hust.edu.cn>, Sasha Levin <sashal@kernel.org>
Subject: Re: [PATCH 6.6.y] hrtimers: Force migrate away hrtimers queued after CPUHP_AP_HRTIMERS_DYING
Date: Wed, 21 May 2025 22:03:54 -0400 [thread overview]
Message-ID: <20250521135218-49533875d0300317@stable.kernel.org> (raw)
In-Reply-To: <20250521015934.538871-1-lizy04@hust.edu.cn>
[ 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: 53dac345395c0d2493cbc2f4c85fe38aef5b63f5
WARNING: Author mismatch between patch and upstream commit:
Backport author: Zhaoyang Li<lizy04@hust.edu.cn>
Commit author: Frederic Weisbecker<frederic@kernel.org>
Status in newer kernel trees:
6.14.y | Present (exact SHA1)
6.12.y | Present (different SHA1: e456a88bddae)
Note: The patch differs from the upstream commit:
---
1: 53dac345395c0 ! 1: 1e8712284e346 hrtimers: Force migrate away hrtimers queued after CPUHP_AP_HRTIMERS_DYING
@@ Metadata
## Commit message ##
hrtimers: Force migrate away hrtimers queued after CPUHP_AP_HRTIMERS_DYING
+ [ Upstream commit 53dac345395c0d2493cbc2f4c85fe38aef5b63f5 ]
+
hrtimers are migrated away from the dying CPU to any online target at
the CPUHP_AP_HRTIMERS_DYING stage in order not to delay bandwidth timers
handling tasks involved in the CPU hotplug forward progress.
@@ Commit message
Link: https://lore.kernel.org/all/20250117232433.24027-1-frederic@kernel.org
Closes: 20241213203739.1519801-1-usamaarif642@gmail.com
- ## include/linux/hrtimer_defs.h ##
-@@ include/linux/hrtimer_defs.h: struct hrtimer_cpu_base {
+ Signed-off-by: Zhaoyang Li <lizy04@hust.edu.cn>
+
+ ## include/linux/hrtimer.h ##
+@@ include/linux/hrtimer.h: struct hrtimer_cpu_base {
ktime_t softirq_expires_next;
struct hrtimer *softirq_next_timer;
struct hrtimer_clock_base clock_base[HRTIMER_MAX_CLOCK_BASES];
+ call_single_data_t csd;
} ____cacheline_aligned;
-
+ static inline void hrtimer_set_expires(struct hrtimer *timer, ktime_t time)
## kernel/time/hrtimer.c ##
@@
---
Results of testing on various branches:
| Branch | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| stable/linux-6.6.y | Success | Success |
prev parent reply other threads:[~2025-05-22 2:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-10 15:01 FAILED: patch "[PATCH] hrtimers: Force migrate away hrtimers queued after" failed to apply to 6.6-stable tree gregkh
2025-05-21 1:59 ` [PATCH 6.6.y] hrtimers: Force migrate away hrtimers queued after CPUHP_AP_HRTIMERS_DYING Zhaoyang Li
2025-05-22 2:03 ` Sasha Levin [this message]
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