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| author |   Yunfeng Ye <yeyunfeng@huawei.com> | 2020-11-19 14:21:25 +0800 |
|---|---|---|
| committer |   Tejun Heo <tj@kernel.org> | 2020-11-25 17:10:28 -0500 |
| commit | 01341fbd0d8d4e717fc1231cdffe00343088ce0b (patch) | |
| tree | ff3811c2c56f56b94ec7687bf943454112591fda /drivers/usb/cdns3/cdns3-imx.c | |
| parent | Merge tag '5.10-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6 (diff) | |
| download | linux-dev-01341fbd0d8d4e717fc1231cdffe00343088ce0b.tar.xz linux-dev-01341fbd0d8d4e717fc1231cdffe00343088ce0b.zip | |
workqueue: Kick a worker based on the actual activation of delayed works
In realtime scenario, We do not want to have interference on the
isolated cpu cores. but when invoking alloc_workqueue() for percpu wq
on the housekeeping cpu, it kick a kworker on the isolated cpu.
alloc_workqueue
pwq_adjust_max_active
wake_up_worker
The comment in pwq_adjust_max_active() said:
"Need to kick a worker after thawed or an unbound wq's
max_active is bumped"
So it is unnecessary to kick a kworker for percpu's wq when invoking
alloc_workqueue(). this patch only kick a worker based on the actual
activation of delayed works.
Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com>
Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-imx.c')
0 files changed, 0 insertions, 0 deletions