| Message ID | 20180511190641.23008-13-jean-philippe.brucker@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
diff --git a/kernel/fork.c b/kernel/fork.c index 1062f7450e97..bf05d188c8de 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -999,6 +999,7 @@ void mmput_async(struct mm_struct *mm) schedule_work(&mm->async_put_work); } } +EXPORT_SYMBOL_GPL(mmput_async); #endif /**
In some cases releasing a mm bound to a device might invoke an exit handler, that takes a lock already held by the function calling mmput(). This is the case for VFIO, which needs to call mmput_async to avoid a deadlock. Other drivers using SVA might follow. Since they can be built as modules, export the mmput_async symbol. Cc: akpm@linux-foundation.org Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com> --- kernel/fork.c | 1 + 1 file changed, 1 insertion(+)