From: sashiko-bot@kernel.org
To: "Ian Rogers" <irogers@google.com>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: [PATCH v6 08/11] perf bpf-filter: Support slab cache locks (&<name>) in lock_held()
Date: Thu, 22 Oct 2026 20:37:28 +0000 [thread overview]
Message-ID: <sashiko-outbox-182015@kernel.org> (raw)
In-Reply-To: <20261022203003.1779152-9-irogers@google.com>
> Extend the lock_held() BPF sample filter to support dynamically
> allocated kernel locks inside slab caches prefixed with '&' (e.g.
> lock_held(&dentry), lock_held_read(&dentry), lock_held_write(&dentry)).
>
> Reuse do_slab_cache_iter() from lock_data.h via a SEC("iter/kmem_cache")
> program to resolve the requested slab cache name to its kernel
> struct kmem_cache * address, and use the bpf_get_kmem_cache() kfunc in
> record_lock_acquired_owner() and record_lock_released_addr() to match
> held locks allocated from that slab cache.
>
> Signed-off-by: Ian Rogers <irogers@google.com>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261022203003.1779152-1-irogers@google.com?part=8
next prev parent reply other threads:[~2026-10-22 20:37 UTC|newest]
Thread overview: 106+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-17 5:45 [PATCH v1 0/5] perf bpf-filter / lock contention: Add lock_held() sample filter and RCU/SRCU support Ian Rogers
2026-10-17 5:45 ` [PATCH v1 1/5] perf lock contention: Share common BPF and lock type definitions in lock_data.h Ian Rogers
2026-10-17 5:52 ` sashiko-bot
2026-10-17 5:45 ` [PATCH v1 2/5] perf bpf-filter: Add lock_held() sample filter Ian Rogers
2026-10-17 6:09 ` sashiko-bot
2026-10-17 5:45 ` [PATCH v1 3/5] perf test: Add tests for lock_held() BPF " Ian Rogers
2026-10-17 5:49 ` sashiko-bot
2026-10-17 5:45 ` [PATCH v1 4/5] perf bpf-filter: Extend lock_held() to support RCU, Tasks Trace RCU, and SRCU Ian Rogers
2026-10-17 5:56 ` sashiko-bot
2026-10-17 5:45 ` [PATCH v1 5/5] perf lock contention: Extend BPF lock contention to RCU " Ian Rogers
2026-10-17 6:08 ` sashiko-bot
2026-10-17 17:14 ` [PATCH v2 0/6] perf bpf-filter / lock contention: Add lock_held() sample filter and RCU/SRCU support Ian Rogers
2026-10-17 17:14 ` [PATCH v2 1/6] perf lock contention: Share common BPF and lock type definitions in lock_data.h Ian Rogers
2026-10-17 17:31 ` sashiko-bot
2026-10-17 17:14 ` [PATCH v2 2/6] perf bpf-filter: Add lock_held() sample filter Ian Rogers
2026-10-17 17:35 ` sashiko-bot
2026-10-17 17:14 ` [PATCH v2 3/6] perf test: Add tests for lock_held() BPF " Ian Rogers
2026-10-17 17:17 ` sashiko-bot
2026-10-17 17:14 ` [PATCH v2 4/6] perf bpf-filter: Extend lock_held() to support RCU, Tasks Trace RCU, and SRCU Ian Rogers
2026-10-17 17:25 ` sashiko-bot
2026-10-17 17:14 ` [PATCH v2 5/6] perf lock contention: Extend BPF lock contention to RCU " Ian Rogers
2026-10-17 17:30 ` sashiko-bot
2026-10-17 17:14 ` [PATCH v2 6/6] perf lock contention: Filter events before creating lock_stat Ian Rogers
2026-10-17 17:17 ` sashiko-bot
2026-10-18 5:37 ` [PATCH v3 0/6] perf bpf-filter / lock contention: Add lock_held() sample filter and RCU/SRCU support Ian Rogers
2026-10-18 5:37 ` [PATCH v3 1/6] perf lock contention: Share common BPF and lock type definitions in lock_data.h Ian Rogers
2026-10-18 5:50 ` sashiko-bot
2026-10-18 5:37 ` [PATCH v3 2/6] perf bpf-filter: Add lock_held() sample filter Ian Rogers
2026-10-18 6:12 ` sashiko-bot
2026-10-18 5:37 ` [PATCH v3 3/6] perf test: Add tests for lock_held() BPF " Ian Rogers
2026-10-18 5:41 ` sashiko-bot
2026-10-18 5:37 ` [PATCH v3 4/6] perf bpf-filter: Extend lock_held() to support RCU, Tasks Trace RCU, and SRCU Ian Rogers
2026-10-18 5:51 ` sashiko-bot
2026-10-18 5:37 ` [PATCH v3 5/6] perf lock contention: Extend BPF lock contention to RCU " Ian Rogers
2026-10-18 5:48 ` sashiko-bot
2026-10-18 5:37 ` [PATCH v3 6/6] perf lock contention: Filter events before creating lock_stat Ian Rogers
2026-10-18 5:40 ` sashiko-bot
2026-10-19 7:00 ` [PATCH v3 0/6] perf bpf-filter / lock contention: Add lock_held() sample filter and RCU/SRCU support Namhyung Kim
2026-10-19 19:08 ` Ian Rogers
2026-10-19 22:09 ` [PATCH v4 0/7] " Ian Rogers
2026-10-19 22:09 ` [PATCH v4 1/7] perf lock contention: Filter events before creating lock_stat Ian Rogers
2026-10-19 22:14 ` sashiko-bot
2026-10-20 4:34 ` Namhyung Kim
2026-10-21 21:39 ` Arnaldo Carvalho de Melo
2026-10-19 22:09 ` [PATCH v4 2/7] perf bpf-filter: Support BPF sample filters on tracepoint events Ian Rogers
2026-10-19 22:26 ` sashiko-bot
2026-10-20 5:41 ` Namhyung Kim
2026-10-20 15:30 ` Ian Rogers
2026-10-20 22:29 ` Namhyung Kim
2026-10-19 22:09 ` [PATCH v4 3/7] perf lock contention: Share common BPF and lock type definitions in lock_data.h Ian Rogers
2026-10-19 22:17 ` sashiko-bot
2026-10-19 22:09 ` [PATCH v4 4/7] perf bpf-filter: Add lock_held() sample filter Ian Rogers
2026-10-19 22:28 ` sashiko-bot
2026-10-19 22:09 ` [PATCH v4 5/7] perf test: Add tests for lock_held() BPF " Ian Rogers
2026-10-19 22:12 ` sashiko-bot
2026-10-19 22:09 ` [PATCH v4 6/7] perf bpf-filter: Extend lock_held() to support RCU, Tasks Trace RCU, and SRCU Ian Rogers
2026-10-19 22:19 ` sashiko-bot
2026-10-19 22:09 ` [PATCH v4 7/7] perf lock contention: Extend BPF lock contention to RCU " Ian Rogers
2026-10-19 22:19 ` sashiko-bot
2026-10-20 20:58 ` [PATCH v5 0/8] perf bpf-filter / lock contention: Add lock_held() sample filter and RCU/SRCU support Ian Rogers
2026-10-20 20:58 ` [PATCH v5 1/8] perf lock contention: Filter events before creating lock_stat Ian Rogers
2026-10-20 22:38 ` sashiko-bot
2026-10-20 20:58 ` [PATCH v5 2/8] perf bpf-filter: Fix bpf_link leak by using PERF_EVENT_IOC_SET_BPF Ian Rogers
2026-10-20 22:41 ` sashiko-bot
2026-10-20 20:58 ` [PATCH v5 3/8] perf bpf-filter: Support BPF sample filters on tracepoint events Ian Rogers
2026-10-20 22:57 ` sashiko-bot
2026-10-20 20:58 ` [PATCH v5 4/8] perf lock contention: Share common BPF and lock type definitions in lock_data.h Ian Rogers
2026-10-20 22:42 ` Namhyung Kim
2026-10-20 23:02 ` sashiko-bot
2026-10-20 20:58 ` [PATCH v5 5/8] perf bpf-filter: Add lock_held() sample filter Ian Rogers
2026-10-20 22:49 ` Namhyung Kim
2026-10-20 23:17 ` sashiko-bot
2026-10-20 20:58 ` [PATCH v5 6/8] perf test: Add tests for lock_held() BPF " Ian Rogers
2026-10-20 23:20 ` sashiko-bot
2026-10-20 20:58 ` [PATCH v5 7/8] perf bpf-filter: Extend lock_held() to support RCU, Tasks Trace RCU, and SRCU Ian Rogers
2026-10-20 23:29 ` sashiko-bot
2026-10-20 20:58 ` [PATCH v5 8/8] perf lock contention: Extend BPF lock contention to RCU " Ian Rogers
2026-10-20 23:37 ` sashiko-bot
2026-10-22 20:29 ` [PATCH v6 00/11] perf bpf-filter / lock contention: Add lock_held() sample filter and RCU/SRCU support Ian Rogers
2026-10-22 20:29 ` [PATCH v6 01/11] perf bpf-filter: Fix bpf_link leak by using PERF_EVENT_IOC_SET_BPF Ian Rogers
2026-10-22 20:35 ` sashiko-bot
2026-10-22 22:06 ` Namhyung Kim
2026-10-22 20:29 ` [PATCH v6 02/11] perf bpf-filter: Support BPF sample filters on tracepoint events Ian Rogers
2026-10-22 20:55 ` sashiko-bot
2026-10-22 20:29 ` [PATCH v6 03/11] perf lock contention: Share common BPF and lock type definitions in lock_data.h Ian Rogers
2026-10-22 20:36 ` sashiko-bot
2026-10-22 20:29 ` [PATCH v6 04/11] perf lock contention: Extend get_lock_owner() for rt_mutex and mutex handoff Ian Rogers
2026-10-22 20:41 ` sashiko-bot
2026-10-22 20:29 ` [PATCH v6 05/11] perf bpf-filter: Add lock_held() sample filter for global mutexes Ian Rogers
2026-10-22 20:46 ` sashiko-bot
2026-10-22 22:55 ` Namhyung Kim
2026-10-23 5:16 ` Ian Rogers
2026-10-22 20:29 ` [PATCH v6 06/11] perf bpf-filter: Extend lock_held() to other kernel lock types Ian Rogers
2026-10-22 20:55 ` sashiko-bot
2026-10-22 22:56 ` Namhyung Kim
2026-10-23 5:19 ` Ian Rogers
2026-10-22 20:29 ` [PATCH v6 07/11] perf bpf-filter: Support per-process and semi-global locks in lock_held() Ian Rogers
2026-10-22 20:49 ` sashiko-bot
2026-10-22 20:30 ` [PATCH v6 08/11] perf bpf-filter: Support slab cache locks (&<name>) " Ian Rogers
2026-10-22 20:37 ` sashiko-bot [this message]
2026-10-22 20:30 ` [PATCH v6 09/11] perf test: Add tests for lock_held() BPF sample filter Ian Rogers
2026-10-22 20:37 ` sashiko-bot
2026-10-22 20:30 ` [PATCH v6 10/11] perf bpf-filter: Extend lock_held() to support RCU, Tasks Trace RCU, and SRCU Ian Rogers
2026-10-22 20:44 ` sashiko-bot
2026-10-22 20:30 ` [PATCH v6 11/11] perf lock contention: Extend BPF lock contention to RCU " Ian Rogers
2026-10-22 20:43 ` sashiko-bot
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