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Update the prototype for maybe_resched to take a thread not a ksegrp.

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Remove need_resched as it no longer exists.
Cleanup the text for other functions that have changed out from under
their descriptions.

This page needs to be reviewed again after things settle down a bit.

Reviewed by: jhb
This commit is contained in:
davidc 2002-04-12 06:03:47 +00:00
parent 73b614cd70
commit e402b1524f
1 changed files with 15 additions and 15 deletions
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30
share/man/man9/scheduler.9
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@ -44,7 +44,7 @@
.Ft int
.Fn curpriority_cmp "struct proc *p"
.Ft void
.Fn maybe_resched "struct ksegrp *kg"
.Fn maybe_resched "struct thread *td"
.Ft void
.Fn propagate_priority "struct proc *p"
.Ft void
@ -118,14 +118,14 @@ and is stored in the private variable
.Pp
The
.Fn maybe_resched
function compares the priorities of the current process and process
.Fa chk .
function compares the priorities of the current thread and
.Fa td .
If
.Fa chk
has a higher priority than the current process, then a context switch is
.Fa td
has a higher priority than the current thread, then a context switch is
needed, and
.Fn need_resched
is called to force a reschedule on the next return to userland.
.Dv KEF_NEEDRESCHED
is set.
.Pp
The
.Fn propagate_priority
@ -153,13 +153,13 @@ not to the priority of the previously encountered process.
.Pp
The
.Fn resetpriority
function recomputes the user priority of the process
.Fa p
stored in
.Va p_usrpri
function recomputes the user priority of the ksegrp
.Fa kg
(stored in
.Va kg_user_pri )
and calls
.Fn maybe_resched
to force a reschedule if needed.
to force a reschedule of each thread in the group if needed.
.Pp
The
.Fn roundrobin
@ -181,7 +181,7 @@ The
.Fn sched_setup
function is a
.Xr SYSINIT 9
that is called to start up the callout driven scheduler functions.
that is called to start the callout driven scheduler functions.
It just calls the
.Fn roundrobin
and
@ -195,8 +195,8 @@ The
.Fn schedclock
function is called by
.Fn statclock
to adjust the priority of the currently running process.
It updates the process's estimated CPU time and then adjusts the priority via
to adjust the priority of the currently running thread's ksegrp.
It updates the group's estimated CPU time and then adjusts the priority via
.Fn resetpriority .
.Pp
The