Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

- move an implementation example to an EXAMPLES section.

Browse Source 
- adapt to multiprocessor.
This commit is contained in:
yamt 2007-02-17 17:35:52 +00:00
parent 443a5d8276
commit 5ee77a9232
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
share/man/man9/cpu_need_resched.9
View File

@ -1,4 +1,4 @@
.\" $NetBSD: cpu_need_resched.9,v 1.3 2007/02/17 17:26:31 yamt Exp $
.\" $NetBSD: cpu_need_resched.9,v 1.4 2007/02/17 17:35:52 yamt Exp $
.\"
.\" Copyright (c) 2002 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -52,17 +52,20 @@ notify machine-dependent code that a context switch from the current
LWP is required.
This event may occur if a higher priority LWP appears on the run
queue or if the current LWP has exceeded its time slice.
.Pp
.Sh EXAMPLES
Specifically, the
.Fn cpu_need_resched
function will perform the following operations:
.Bl -bullet -offset indent
.It
Set a global flag which is checked by
Set a per-processor flag which is checked by
.Xr userret 9
when returning to user-mode execution.
.It
Post an asynchronous software trap (AST).
.It
Send an inter processor interrupt to wake up
.Fn cpu_idle .
.El
.Sh SEE ALSO
.Xr scheduler 9 ,