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-rw-r--r--kernel/fork.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index ac8100e..195958a 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -368,6 +368,8 @@ void fastcall __mmdrop(struct mm_struct *mm)
*/
void mmput(struct mm_struct *mm)
{
+ might_sleep();
+
if (atomic_dec_and_test(&mm->mm_users)) {
exit_aio(mm);
exit_mmap(mm);
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