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Diffstat (limited to 'share/man/man9/condvar.9')
| -rw-r--r-- | share/man/man9/condvar.9 | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/share/man/man9/condvar.9 b/share/man/man9/condvar.9 index 2ac8906..db3eab1 100644 --- a/share/man/man9/condvar.9 +++ b/share/man/man9/condvar.9 @@ -136,9 +136,27 @@ When a thread waits on a condition, .Fa lock is atomically released before the thread is blocked, then reacquired before the function call returns. +In addition, the thread will fully drop the +.Va Giant +mutex +(even if recursed) +while the it is suspended and will reacquire the +.Va Giant +mutex before the function returns. The .Fn cv_wait_unlock function does not reacquire the lock before returning. +Note that the +.Va Giant +mutex may be specified as +.Fa lock . +However, +.Va Giant +may not be used as +.Fa lock +for the +.Fn cv_wait_unlock +function. All waiters must pass the same .Fa lock in conjunction with |
