CVS commit: [thorpej-futex2] src/sys/kern

["Jason R Thorpe" <thorpej%netbsd.org@localhost>]

Module Name:    src
Committed By:   thorpej
Date:           Sat Aug  7 01:22:34 UTC 2021

Modified Files:
        src/sys/kern [thorpej-futex2]: sys_futex.c

Log Message:
The return values for FUTEX_REQUEUE and FUTEX_CMP_REQUEUE are different,
but we weren't doing to the right thing.

FUTEX_REQUEUE returns the number of waiters awakened.

FUTEX_CMP_REQUEUE returns the number of waiters awakenend plus the
number of waiters requeued (and it is an exercise for the caller to
calculate the number requeued, if it cares).


To generate a diff of this commit:
cvs rdiff -u -r1.12.4.4 -r1.12.4.5 src/sys/kern/sys_futex.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.