linux/arch/s390/mm
Gerald Schaefer 75077afbec thp, s390: thp splitting backend for s390
This patch is part of the architecture backend for thp on s390.  It
provides the functions related to thp splitting, including serialization
against gup.  Unlike other archs, pmdp_splitting_flush() cannot use a tlb
flushing operation to serialize against gup on s390, because that wouldn't
be stopped by the disabled IRQs.  So instead, smp_call_function() is
called with an empty function, which will have the expected effect.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-09 16:22:30 +09:00
..
cmm.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
extable.c s390/exceptions: switch to relative exception table entries 2012-09-26 15:45:10 +02:00
extmem.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
fault.c s390/exceptions: switch to relative exception table entries 2012-09-26 15:45:10 +02:00
gup.c thp, s390: thp splitting backend for s390 2012-10-09 16:22:30 +09:00
hugetlbpage.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
init.c s390/mm: mark free_initrd_mem() as __init 2012-09-26 15:45:27 +02:00
maccess.c s390/kernel: Introduce memcpy_absolute() function 2012-05-30 09:04:49 +02:00
Makefile s390/exceptions: switch to relative exception table entries 2012-09-26 15:45:10 +02:00
mmap.c s390/mm: downgrade page table after fork of a 31 bit process 2012-07-26 16:24:14 +02:00
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
pageattr.c [S390] sparse: fix sparse warnings about missing prototypes 2011-10-30 15:16:46 +01:00
pgtable.c thp, s390: thp splitting backend for s390 2012-10-09 16:22:30 +09:00
vmem.c s390: enable large page support with CONFIG_DEBUG_PAGEALLOC 2012-09-26 15:44:50 +02:00