linux/arch/s390/mm
Christian Borntraeger 6af7eea2ae [S390] s390: disable change bit override
commit 6a985c6194
([S390] s390: use change recording override for kernel mapping)
deactivated the change bit recording for the kernel mapping to
improve the performance. This works most of the time, but there
are cases (e.g. kernel runs in home space, futex atomic compare xcmg)
where we modify user memory with the kernel mapping instead of the
user mapping.
Instead of fixing these cases, this patch just deactivates change bit
override to avoid future problems with other kernel code that might
use the kernel mapping for user memory.

CC: stable@kernel.org
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-04-09 13:43:02 +02:00
..
cmm.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
extmem.c [S390] Replace ENOTSUPP usage with EOPNOTSUPP 2010-02-26 22:37:31 +01:00
fault.c [S390] use kprobes_built_in() in mm/fault code 2010-02-26 22:37:32 +01:00
hugetlbpage.c hugetlb: introduce pud_huge 2008-07-24 10:47:18 -07:00
init.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
maccess.c [S390] zcore: CPU registers are not saved under LPAR 2010-03-24 11:49:53 +01:00
Makefile [S390] Enable guest page hinting by default. 2009-09-11 10:29:54 +02:00
mmap.c [S390] use helpers for rlimits 2010-01-13 20:44:45 +01:00
page-states.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pgtable.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
vmem.c [S390] s390: disable change bit override 2010-04-09 13:43:02 +02:00