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[v2,0/7] omap: iommu migration, relocation and cleanups

Message ID 20110826112531.GQ1923@amd.com (mailing list archive)
State New, archived
Headers show

Commit Message

Joerg Roedel Aug. 26, 2011, 11:25 a.m. UTC 
On Wed, Aug 24, 2011 at 01:08:07PM -0400, Ohad Ben-Cohen wrote:
> Ohad Ben-Cohen (7):
>   omap: iommu: migrate to the generic IOMMU API
>   omap: iommu/iovmm: move to dedicated iommu folder
>   omap: iommu: stop exporting local functions
>   omap: iommu: PREFETCH_IOTLB cleanup
>   omap: iovmm: remove unused functionality
>   omap: iommu: remove unused exported API
>   omap: iommu: omapify 'struct iommu' and exposed API

Applied all to arm/omap, thanks Ohad. I also put a commit on-top which
finished the mutex->spin_lock conversion. Looks like one call-place was
missed. See attached patch.

commit 4234541f1a64d9dc6d489cf8f614dc01c62360f6
Author: Joerg Roedel <joerg.roedel@amd.com>
Date:   Fri Aug 26 13:20:06 2011 +0200

    omap: iommu: Fix up mutex->spin_lock conversion of iommu_lock
    
    The omap_iommu_set_isr() was still using the mutex functions
    but the iommu_lock was converted to a spin_lock. Fix that
    up.
    
    Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

Comments

Ohad Ben Cohen Aug. 26, 2011, 12:21 p.m. UTC | #1 
On Fri, Aug 26, 2011 at 2:25 PM, Roedel, Joerg <Joerg.Roedel@amd.com> wrote:
> Applied all to arm/omap, thanks Ohad. I also put a commit on-top which
> finished the mutex->spin_lock conversion. Looks like one call-place was
> missed. See attached patch.
>
> commit 4234541f1a64d9dc6d489cf8f614dc01c62360f6
> Author: Joerg Roedel <joerg.roedel@amd.com>
> Date:   Fri Aug 26 13:20:06 2011 +0200
>
>    omap: iommu: Fix up mutex->spin_lock conversion of iommu_lock
>
>    The omap_iommu_set_isr() was still using the mutex functions

Thanks, Joerg.

(I am already working on removing omap_iommu_set_isr() and providing
that functionality via the IOMMU API, so the s/mutex/spinlock/ patch I
squashed with the original patch set accidentally didn't cover that
function).
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Patch

diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index dad45ab..90744af 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -918,14 +918,14 @@  int omap_iommu_set_isr(const char *name,
 		return -ENODEV;
 
 	obj = to_iommu(dev);
-	mutex_lock(&obj->iommu_lock);
+	spin_lock(&obj->iommu_lock);
 	if (obj->refcount != 0) {
-		mutex_unlock(&obj->iommu_lock);
+		spin_unlock(&obj->iommu_lock);
 		return -EBUSY;
 	}
 	obj->isr = isr;
 	obj->isr_priv = isr_priv;
-	mutex_unlock(&obj->iommu_lock);
+	spin_unlock(&obj->iommu_lock);
 
 	return 0;
 }