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* [patch] md/raid10: unlock on error path in raid10_start_reshape()
@ 2012-05-17  6:49 Dan Carpenter
  2012-05-17  7:39 ` NeilBrown
  0 siblings, 1 reply; 2+ messages in thread
From: Dan Carpenter @ 2012-05-17  6:49 UTC (permalink / raw)
  To: Neil Brown; +Cc: linux-raid, kernel-janitors

We need to unlock and enable IRQs before returning here.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index e8ed1d8..ba7290f 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -3918,6 +3918,7 @@ static int raid10_start_reshape(struct mddev *mddev)
 	if (mddev->reshape_backwards) {
 		sector_t size = raid10_size(mddev, 0, 0);
 		if (size < mddev->array_sectors) {
+			spin_unlock_irq(&conf->device_lock);
 			printk(KERN_ERR "md/raid10:%s: array size must be reduce before number of disks\n",
 			       mdname(mddev));
 			return -EINVAL;

^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [patch] md/raid10: unlock on error path in raid10_start_reshape()
  2012-05-17  6:49 [patch] md/raid10: unlock on error path in raid10_start_reshape() Dan Carpenter
@ 2012-05-17  7:39 ` NeilBrown
  0 siblings, 0 replies; 2+ messages in thread
From: NeilBrown @ 2012-05-17  7:39 UTC (permalink / raw)
  To: Dan Carpenter; +Cc: linux-raid, kernel-janitors

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On Thu, 17 May 2012 09:49:11 +0300 Dan Carpenter <dan.carpenter@oracle.com>
wrote:

> We need to unlock and enable IRQs before returning here.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> 
> diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
> index e8ed1d8..ba7290f 100644
> --- a/drivers/md/raid10.c
> +++ b/drivers/md/raid10.c
> @@ -3918,6 +3918,7 @@ static int raid10_start_reshape(struct mddev *mddev)
>  	if (mddev->reshape_backwards) {
>  		sector_t size = raid10_size(mddev, 0, 0);
>  		if (size < mddev->array_sectors) {
> +			spin_unlock_irq(&conf->device_lock);
>  			printk(KERN_ERR "md/raid10:%s: array size must be reduce before number of disks\n",
>  			       mdname(mddev));
>  			return -EINVAL;

Hi Dan,
 thanks heaps for this!!
I've merged the change into the original patch with suitable attribution.
The result should get into tomorrows linux-next.

Thanks,
NeilBrown

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^ permalink raw reply	[flat|nested] 2+ messages in thread

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2012-05-17  6:49 [patch] md/raid10: unlock on error path in raid10_start_reshape() Dan Carpenter
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