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virtio-mem: Require only coordinated discards

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We implement the RamDiscardManager interface and only require coordinated
discarding of RAM to work.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta@cloud.ionos.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Auger Eric <eric.auger@redhat.com>
Cc: Wei Yang <richard.weiyang@linux.alibaba.com>
Cc: teawater <teawaterz@linux.alibaba.com>
Cc: Marek Kedzierski <mkedzier@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210413095531.25603-13-david@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
David Hildenbrand 2021-04-13 11:55:30 +02:00 committed by Eduardo Habkost
parent 7e6d32ebf7
commit bc072ed403
1 changed files with 3 additions and 3 deletions
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6
hw/virtio/virtio-mem.c
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@ -719,7 +719,7 @@ static void virtio_mem_device_realize(DeviceState *dev, Error **errp)
return;
}
if (ram_block_discard_require(true)) {
if (ram_block_coordinated_discard_require(true)) {
error_setg(errp, "Discarding RAM is disabled");
return;
}
@ -727,7 +727,7 @@ static void virtio_mem_device_realize(DeviceState *dev, Error **errp)
ret = ram_block_discard_range(rb, 0, qemu_ram_get_used_length(rb));
if (ret) {
error_setg_errno(errp, -ret, "Unexpected error discarding RAM");
ram_block_discard_require(false);
ram_block_coordinated_discard_require(false);
return;
}
@ -771,7 +771,7 @@ static void virtio_mem_device_unrealize(DeviceState *dev)
virtio_del_queue(vdev, 0);
virtio_cleanup(vdev);
g_free(vmem->bitmap);
ram_block_discard_require(false);
ram_block_coordinated_discard_require(false);
}
static int virtio_mem_discard_range_cb(const VirtIOMEM *vmem, void *arg,