Martin Schwidefsky 691d526415 s390/mm: fix incorrect ASCE after crst_table_downgrade ... The switch_mm function does nothing in case the prev and next mm are the same. It can happen that a crst_table_downgrade has changed the top-level pgd in the meantime on a different CPU. Always store the new ASCE to be picked up in entry.S. [heiko.carstens@de.ibm.com]: Bug was introduced with git commit 53e857f308 ("s390/mm,tlb: race of lazy TLB flush vs. recreation of TLB entries") and causes random crashes due to broken page tables being used. Reported-by: Dominik Vogt <vogt@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>		2015-03-02 11:35:57 -08:00
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asm	s390/mm: fix incorrect ASCE after crst_table_downgrade	2015-03-02 11:35:57 -08:00
uapi/asm	Fairly small update, but there are some interesting new features.	2015-02-13 09:55:09 -08:00