On Tue, Oct 22, 2024 at 09:06:35AM +0200, Peter Zijlstra wrote: > What is returned is an array index -- and SRCU is currently built using > an array of size 2. Using larger arrays is conceivable (IIRC some > versions of preemptible RCU used up to 4 or something). > > So while the values 0,1 are possible inside bool, that does not reflect > the nature of the numbers, which is an array index. Mapping that onto > bool would be slightly confusing (and limit possible future extention of > using larger arrays for SRCU). Ok, make sense. Maybe add this to the comment if we're updating іt. But using an unsigned return value might still be useful.
