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vhost: put mm after thread stop

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makes it possible to batch use/unuse mm

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin
2010-10-06 15:34:38 +02:00
parent 3fcedec752
commit 533a19b4b8
1 changed files with 3 additions and 4 deletions
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7
drivers/vhost/vhost.c
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@@ -401,15 +401,14 @@ void vhost_dev_cleanup(struct vhost_dev *dev)
kfree(rcu_dereference_protected(dev->memory, kfree(rcu_dereference_protected(dev->memory,
lockdep_is_held(&dev->mutex))); lockdep_is_held(&dev->mutex)));
RCU_INIT_POINTER(dev->memory, NULL); RCU_INIT_POINTER(dev->memory, NULL);
if (dev->mm)
mmput(dev->mm);
dev->mm = NULL;
WARN_ON(!list_empty(&dev->work_list)); WARN_ON(!list_empty(&dev->work_list));
if (dev->worker) { if (dev->worker) {
kthread_stop(dev->worker); kthread_stop(dev->worker);
dev->worker = NULL; dev->worker = NULL;
} }
if (dev->mm)
mmput(dev->mm);
dev->mm = NULL;
} }
static int log_access_ok(void __user *log_base, u64 addr, unsigned long sz) static int log_access_ok(void __user *log_base, u64 addr, unsigned long sz)