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From: Tony Krowiak <akrowiak@linux.ibm.com>
To: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org
Cc: jjherne@linux.ibm.com, borntraeger@de.ibm.com, cohuck@redhat.com,
	mjrosato@linux.ibm.com, pasic@linux.ibm.com,
	alex.williamson@redhat.com, kwankhede@nvidia.com,
	fiuczy@linux.ibm.com
Subject: [PATCH 2/2] s390/vfio-ap: fix unlinking of queues from the mdev
Date: Wed, 17 Aug 2022 18:52:42 -0400	[thread overview]
Message-ID: <20220817225242.188805-3-akrowiak@linux.ibm.com> (raw)
In-Reply-To: <20220817225242.188805-1-akrowiak@linux.ibm.com>

The vfio_ap_mdev_unlink_adapter and vfio_ap_mdev_unlink_domain functions
add the associated vfio_ap_queue objects to the hashtable that links them
to the matrix mdev to which their APQN is assigned. In order to unlink
them, they must be deleted from the hashtable. This patch fixes that
issue.

Reported-by: Tony Krowiak <akrowiak@linux.ibm.com>
Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
---
 drivers/s390/crypto/vfio_ap_ops.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c
index ee82207b4e60..2493926b5dfb 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -1049,8 +1049,7 @@ static void vfio_ap_mdev_unlink_adapter(struct ap_matrix_mdev *matrix_mdev,
 		if (q && qtable) {
 			if (test_bit_inv(apid, matrix_mdev->shadow_apcb.apm) &&
 			    test_bit_inv(apqi, matrix_mdev->shadow_apcb.aqm))
-				hash_add(qtable->queues, &q->mdev_qnode,
-					 q->apqn);
+				vfio_ap_unlink_queue_fr_mdev(q);
 		}
 	}
 }
@@ -1236,8 +1235,7 @@ static void vfio_ap_mdev_unlink_domain(struct ap_matrix_mdev *matrix_mdev,
 		if (q && qtable) {
 			if (test_bit_inv(apid, matrix_mdev->shadow_apcb.apm) &&
 			    test_bit_inv(apqi, matrix_mdev->shadow_apcb.aqm))
-				hash_add(qtable->queues, &q->mdev_qnode,
-					 q->apqn);
+				vfio_ap_unlink_queue_fr_mdev(q);
 		}
 	}
 }
-- 
2.31.1


  parent reply	other threads:[~2022-08-17 22:53 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-17 22:52 [PATCH 0/2] s390/vfio-ap: fix two problems discovered in the vfio_ap driver Tony Krowiak
2022-08-17 22:52 ` [PATCH 1/2] s390/vfio-ap: fix hang during removal of mdev after duplicate assignment Tony Krowiak
2022-08-17 22:52 ` Tony Krowiak [this message]
2022-08-18  8:04 ` [PATCH 0/2] s390/vfio-ap: fix two problems discovered in the vfio_ap driver Alexander Gordeev
2022-08-18 13:18   ` Anthony Krowiak

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