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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/sysfs-amd-pmf | |
| 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/sysfs-amd-pmf')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-amd-pmf | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-amd-pmf b/Documentation/ABI/testing/sysfs-amd-pmf new file mode 100644 index 000000000..7fc0e1c2b --- /dev/null +++ b/Documentation/ABI/testing/sysfs-amd-pmf @@ -0,0 +1,13 @@ +What: /sys/devices/platform/*/cnqf_enable +Date: September 2022 +Contact: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> +Description: Reading this file tells if the AMD Platform Management(PMF) + Cool n Quiet Framework(CnQF) feature is enabled or not. + + This feature is not enabled by default and gets only turned on + if OEM BIOS passes a "flag" to PMF ACPI function (index 11 or 12) + or in case the user writes "on". + + To turn off CnQF user can write "off" to the sysfs node. + Note: Systems that support auto mode will not have this sysfs file + available. |