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commit 050eef364ad700590a605a0749f825cab4834b1e [S390] fix tlb flushing vs. concurrent /proc accesses broke KVM on s390x. On every schedule a Badness at include/asm/mmu_context.h:83 appears. s390_enable_sie replaces the mm on the __running__ task, therefore, we have to increase the attach count of the new mm. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>