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| author | Breno Leitao <leitao@debian.org> | 2026-08-05 07:52:36 -0700 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2026-08-10 11:47:20 -1000 |
| commit | a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 (patch) | |
| tree | 39f5b258386e1127d253d293194e9a2991bf3c34 /Documentation/ABI/testing/debugfs-scmi | |
| download | linux-stable-a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656.tar.gz linux-stable-a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656.zip | |
workqueue: skip the node_nr_active update for non-unbound workqueuesgrafted
apply_wqattrs_commit() updates node_nr_active->max unconditionally.
wq->node_nr_active[] is only allocated for unbound workqueues, so guard
the call before per-cpu workqueues start using this path.
No functional change: only unbound workqueues reach apply_wqattrs_*()
today.
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'Documentation/ABI/testing/debugfs-scmi')
| -rw-r--r-- | Documentation/ABI/testing/debugfs-scmi | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/debugfs-scmi b/Documentation/ABI/testing/debugfs-scmi new file mode 100644 index 000000000..ee7179ab2 --- /dev/null +++ b/Documentation/ABI/testing/debugfs-scmi @@ -0,0 +1,70 @@ +What: /sys/kernel/debug/scmi/<n>/instance_name +Date: March 2023 +KernelVersion: 6.3 +Contact: cristian.marussi@arm.com +Description: The name of the underlying SCMI instance <n> described by + all the debugfs accessors rooted at /sys/kernel/debug/scmi/<n>, + expressed as the full name of the top DT SCMI node under which + this SCMI instance is rooted. +Users: Debugging, any userspace test suite + +What: /sys/kernel/debug/scmi/<n>/atomic_threshold_us +Date: March 2023 +KernelVersion: 6.3 +Contact: cristian.marussi@arm.com +Description: An optional time value, expressed in microseconds, representing, + on this SCMI instance <n>, the threshold above which any SCMI + command, advertised to have an higher-than-threshold execution + latency, should not be considered for atomic mode of operation, + even if requested. +Users: Debugging, any userspace test suite + +What: /sys/kernel/debug/scmi/<n>/transport/type +Date: March 2023 +KernelVersion: 6.3 +Contact: cristian.marussi@arm.com +Description: A string representing the type of transport configured for this + SCMI instance <n>. +Users: Debugging, any userspace test suite + +What: /sys/kernel/debug/scmi/<n>/transport/is_atomic +Date: March 2023 +KernelVersion: 6.3 +Contact: cristian.marussi@arm.com +Description: A boolean stating if the transport configured on the underlying + SCMI instance <n> is capable of atomic mode of operation. +Users: Debugging, any userspace test suite + +What: /sys/kernel/debug/scmi/<n>/transport/max_rx_timeout_ms +Date: March 2023 +KernelVersion: 6.3 +Contact: cristian.marussi@arm.com +Description: Timeout in milliseconds allowed for SCMI synchronous replies + for the currently configured SCMI transport for instance <n>. +Users: Debugging, any userspace test suite + +What: /sys/kernel/debug/scmi/<n>/transport/max_msg_size +Date: March 2023 +KernelVersion: 6.3 +Contact: cristian.marussi@arm.com +Description: Max message size of allowed SCMI messages for the currently + configured SCMI transport for instance <n>. +Users: Debugging, any userspace test suite + +What: /sys/kernel/debug/scmi/<n>/transport/tx_max_msg +Date: March 2023 +KernelVersion: 6.3 +Contact: cristian.marussi@arm.com +Description: Max number of concurrently allowed in-flight SCMI messages for + the currently configured SCMI transport for instance <n> on the + TX channels. +Users: Debugging, any userspace test suite + +What: /sys/kernel/debug/scmi/<n>/transport/rx_max_msg +Date: March 2023 +KernelVersion: 6.3 +Contact: cristian.marussi@arm.com +Description: Max number of concurrently allowed in-flight SCMI messages for + the currently configured SCMI transport for instance <n> on the + RX channels. +Users: Debugging, any userspace test suite |