From: William Lee Irwin III <wli@holomorphy.com>
To: Joseph Cordina <joseph.cordina@um.edu.mt>
Cc: linux-kernel@vger.kernel.org
Subject: Re: wait queue process state
Date: Mon, 27 May 2002 08:49:50 -0700 [thread overview]
Message-ID: <20020527154950.GO14918@holomorphy.com> (raw)
In-Reply-To: <3CF2A0FB.8090507@um.edu.mt>
On Mon, May 27, 2002 at 05:11:23PM -0400, Joseph Cordina wrote:
> The reason I am asking is that I am working on scheduler activations
> which allow new kernel threads to be created when a kernel thread blocks
> inside the kernel. Yet this only works for INTERRUPTIBLE processes, I
> was thinking of making it work also for NONINTERRUPTIBLE processes. Just
> wondering if this would have any repurcusions. Also when a process
> generates a page fault which causes a page to be retreived from the
> filesystem, it such a process placed in the wait queue as
> NONINTERRUPTIBLE also ?
filemap_nopage() from mm/filemap.c does wait_on_page() or some variant
thereof (2.5 has wait_on_page_locked()) in several places, and it's
placed into the TASK_UNINTERRUPTIBLE state while doing so.
Cheers,
Bill
next prev parent reply other threads:[~2002-05-27 15:50 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-27 21:11 wait queue process state Joseph Cordina
2002-05-27 15:49 ` William Lee Irwin III [this message]
2002-05-28 7:57 ` Terje Eggestad
2002-05-28 23:01 ` jw schultz
2002-05-28 23:05 ` Benjamin LaHaise
2002-05-29 0:21 ` Alan Cox
2002-05-29 10:58 ` David Woodhouse
2002-05-29 12:43 ` Alan Cox
2002-05-29 11:55 ` Roman Zippel
2002-05-29 13:29 ` Alan Cox
2002-05-29 11:56 ` David Woodhouse
2002-05-31 19:05 ` Theodore Ts'o
2002-05-29 11:25 ` Trond Myklebust
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