On Fri, Sep 24, 2021 at 02:54:24PM +0100, Mark Rutland wrote: > We could instead have the scheduler entrypoints snapshot their caller > into a field in task_struct. If there are sufficiently few callers, that > could be an inline wrapper that passes a __func__ string. Otherwise, we > still need to symbolize. I strongly dislike that option, we'd make the scheduler slower for something that's typically unused. The 3 people actually using wchan should pay the cost of obtaining the data, not everybody all the time.
