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Message-ID: <29495f1d0608011120j8103c5bwd169367ee2d67bc0@mail.gmail.com>
Date: Tue, 1 Aug 2006 13:20:28 -0500
From: "Nish Aravamudan" <nish.aravamudan@...il.com>
To: "Dave Jones" <davej@...hat.com>, arjan@...radead.org,
"Linux Kernel" <linux-kernel@...r.kernel.org>,
"Andrew Morton" <akpm@...l.org>
Subject: Re: deprecate and convert some sleep_on variants.
On 8/1/06, Dave Jones <davej@...hat.com> wrote:
> We've been carrying this for a dogs age in Fedora. It'd be good to get
> this in -mm, so that it stands some chance of getting upstreamed at some point.
>
> Signed-off-by: Arjan van de Ven <arjan@...radead.org>
> Signed-off-by: Dave Jones <davej@...hat.com>
>
> diff -urNp --exclude-from=/home/davej/.exclude linux-1060/drivers/block/DAC960.c linux-1070/drivers/block/DAC960.c
> --- linux-1060/drivers/block/DAC960.c
> +++ linux-1070/drivers/block/DAC960.c
> @@ -6132,6 +6132,9 @@ static boolean DAC960_V2_ExecuteUserComm
> unsigned long flags;
> unsigned char Channel, TargetID, LogicalDriveNumber;
> unsigned short LogicalDeviceNumber;
> + wait_queue_t __wait;
> +
> + init_waitqueue_entry(&__wait, current);
>
> spin_lock_irqsave(&Controller->queue_lock, flags);
> while ((Command = DAC960_AllocateCommand(Controller)) == NULL)
> @@ -6314,11 +6317,18 @@ static boolean DAC960_V2_ExecuteUserComm
> .SegmentByteCount =
> CommandMailbox->ControllerInfo.DataTransferSize;
> DAC960_ExecuteCommand(Command);
> + add_wait_queue(&Controller->CommandWaitQueue, &__wait);
> + set_current_state(TASK_UNINTERRUPTIBLE);
Could this use prepare_to_wait()
> +
> while (Controller->V2.NewControllerInformation->PhysicalScanActive)
> {
> DAC960_ExecuteCommand(Command);
> - sleep_on_timeout(&Controller->CommandWaitQueue, HZ);
> + schedule_timeout(HZ);
> + set_current_state(TASK_UNINTERRUPTIBLE);
and schedule_timeout_uninterruptible() (which is redundant for the
first invocation, I suppose)
> }
> + current->state = TASK_RUNNING;
> + remove_wait_queue(&Controller->CommandWaitQueue, &__wait);
and finish_wait()?
Same for ibmtr.c ?
Also, would these changes:
> diff -urNp --exclude-from=/home/davej/.exclude linux-1060/include/linux/wait.h linux-1070/include/linux/wait.h
> --- linux-1060/include/linux/wait.h
> +++ linux-1070/include/linux/wait.h
Be better in a separate patch?
Thanks,
Nish
-
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