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authorDavid Hildenbrand <david@redhat.com>2021-11-08 18:31:58 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-09 10:02:48 -0800
commitffc763d0c334c397ef04c02f6bd512ae23bfa1aa (patch)
treed0ae29711bc1df6a52becb096470865265e9b5b2 /drivers/virtio
parent84e17e684eefa9d84d9d46e5436d46de129cd6da (diff)
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virtio-mem: factor out hotplug specifics from virtio_mem_remove() into virtio_mem_deinit_hotplug()
Let's prepare for a new virtio-mem kdump mode in which we don't actually hot(un)plug any memory but only observe the state of device blocks. Link: https://lkml.kernel.org/r/20211005121430.30136-9-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Dave Young <dyoung@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jason Wang <jasowang@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Oscar Salvador <osalvador@suse.de> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/virtio')
-rw-r--r--drivers/virtio/virtio_mem.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/virtio/virtio_mem.c b/drivers/virtio/virtio_mem.c
index 1be3ee7f684d..76d8aef3cfd2 100644
--- a/drivers/virtio/virtio_mem.c
+++ b/drivers/virtio/virtio_mem.c
@@ -2667,9 +2667,8 @@ out_free_vm:
return rc;
}
-static void virtio_mem_remove(struct virtio_device *vdev)
+static void virtio_mem_deinit_hotplug(struct virtio_mem *vm)
{
- struct virtio_mem *vm = vdev->priv;
unsigned long mb_id;
int rc;
@@ -2716,7 +2715,8 @@ static void virtio_mem_remove(struct virtio_device *vdev)
* away. Warn at least.
*/
if (virtio_mem_has_memory_added(vm)) {
- dev_warn(&vdev->dev, "device still has system memory added\n");
+ dev_warn(&vm->vdev->dev,
+ "device still has system memory added\n");
} else {
virtio_mem_delete_resource(vm);
kfree_const(vm->resource_name);
@@ -2730,6 +2730,13 @@ static void virtio_mem_remove(struct virtio_device *vdev)
} else {
vfree(vm->bbm.bb_states);
}
+}
+
+static void virtio_mem_remove(struct virtio_device *vdev)
+{
+ struct virtio_mem *vm = vdev->priv;
+
+ virtio_mem_deinit_hotplug(vm);
/* reset the device and cleanup the queues */
vdev->config->reset(vdev);