Change Details

Presumably, SWT_SLEEPQTIMO was originally used to differentiate between sleepqueue waits with and without a timeout. While here, reference the mi_switch(9) man page in the comments. These flags will be documented there.

Overall, this is a non-functional change, except for kernels built with SCHED_STATS. However, the switch types are useful for communicating the intent of the caller. 1. Ensure that every caller provides a type. In most cases, we upgrade the basic yield to sched_relinquish() aka SWT_RELINQUISH. 2. The case of sched_bind() is distinct, so add a new switch type SWT_BIND. 3. Remove the two unused types, SWT_PREEMPT and SWT_SLEEPQTIMO. 4. Remove SWT_NONE altogether and assert that callers always provide a type flag. 5. Reference the mi_switch(9) man page in the comments, as these flags will be documented there.

PresumablyOverall, this is a non-functional change, SWT_SLEEPQTIMO was originally used to differentiate betweenexcept for kernels built with sleepqueue waits with and without a timeoutSCHED_STATS. However, the switch types are useful for communicating the intent of the caller. While here,1. Ensure that every caller provides a type. reference the mi_switch(9) man page in the comments.In most cases, Thesewe upgrade the basic yield to sched_relinquish() aka SWT_RELINQUISH. 2. The case of sched_bind() is distinct, so add a new switch type SWT_BIND. 3. Remove the two unused types, SWT_PREEMPT and SWT_SLEEPQTIMO. 4. Remove SWT_NONE altogether and assert that callers always provide a type flag. 5. Reference the mi_switch(9) man page in the comments, as these flags will be documented there.