From owner-cvs-all  Tue Jul 30  1:12:37 2002
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From: David Xu <davidx@viasoft.com.cn>
Organization: VIA
To: Seigo Tanimura <tanimura@FreeBSD.ORG>,
	cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG
Subject: Re: cvs commit: src/sys/kern kern_condvar.c kern_switch.c kern_synch.c         src/sys/sys proc.h src/sys/vm vm_glue.c
Date: Tue, 30 Jul 2002 16:12:55 +0800
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could you look carefully timeout handing function? for example,
cv_timedwait_end(), it has same problem with swapping.

David Xu


On Tuesday 30 July 2002 14:54, Seigo Tanimura wrote:
> tanimura    2002/07/29 23:54:05 PDT
>
>   Modified files:
>     sys/kern             kern_condvar.c kern_switch.c kern_synch.c
>     sys/sys              proc.h
>     sys/vm               vm_glue.c
>   Log:
>   - Optimize wakeup() and its friends; if a thread waken up is being
>     swapped in, we do not have to ask for the scheduler thread to do
>     that.
>
>   - Assert that a process is not swapped out in runq functions and
>     swapout().
>
>   - Introduce thread_safetoswapout() for readability.
>
>   - In swapout_procs(), perform a test that may block (check of a
>     thread working on its vm map) first.  This lets us call swapout()
>     with the sched_lock held, providing a better atomicity.
>
>   Revision  Changes    Path
>   1.27      +4 -2      src/sys/kern/kern_condvar.c
>   1.35      +6 -0      src/sys/kern/kern_switch.c
>   1.191     +12 -6     src/sys/kern/kern_synch.c
>   1.233     +5 -0      src/sys/sys/proc.h
>   1.150     +65 -64    src/sys/vm/vm_glue.c
>
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