workqueue: could work->func be reused for private data by introducing per-wq default function?
From: Gao Xiang
Date: Tue May 01 2018 - 04:57:52 EST
Hi Tejun Heo, Lai Jiangshan,
ÂÂÂ I don't know whether the related topic was discussed or not (or
it's actually an insane proposal :( )
ÂÂÂ It seems that the most of workqueues INIT_WORK by a default handle
function.
ÂÂÂ So could we use a per-workqueue default handle function for these
workqueues, and leave an extra private data field for each work_struct?
ÂÂÂ There are so many work_structs that we could reuse the func field
for the other uses.
ÂÂÂ Is it acceptable? I haven't dived into the workqueue implementation
yet, but it seems not straight-forward for find_worker_executing_work,
etc. at a glance.
ÂÂÂ Thanks,
Gao Xiang