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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" Hi, This series contains small improvements for virtio pci driver. The main idea support surprise removal of virtio pci device. Patches 1 to 3 prepare the code to handle surprise removal by marking the device as broken in patch-4. Patch summary: patch-1: ensures that compiler optimization doesn't occur on vq->broken flag patch-2: maintains the mirror sequence on VQ delete and VQ create patch-3: protects vqs list for simultaneous access from reader and a writer patch-4: handles surprise removal of virtio pci device which avoids call trace and system lockup --- changelog: v1->v2: - updated commit log for WRITE_ONCE usage - improved vqs protection patch-3 for using natural structure alignment v0->v1: - fixed below comments from Michael - fixed typo in patch4 in comment - using WRITE_ONCE instead of smp_store_release() - using spinlock instead of rwlock - improved comment in patch - removed fixes tag in patch-1 Parav Pandit (4): virtio: Improve vq->broken access to avoid any compiler optimization virtio: Keep vring_del_virtqueue() mirror of VQ create virtio: Protect vqs list access virtio_pci: Support surprise removal of virtio pci device drivers/virtio/virtio.c | 1 + drivers/virtio/virtio_pci_common.c | 7 +++++++ drivers/virtio/virtio_ring.c | 17 ++++++++++++++--- include/linux/virtio.h | 1 + 4 files changed, 23 insertions(+), 3 deletions(-) -- 2.27.0 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization