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Martin Schwidefsky b2fa47e6bf [S390] refactor page table functions for better pgste support 
Rework the architecture page table functions to access the bits in the
page table extension array (pgste). There are a number of changes:
1) Fix missing pgste update if the attach_count for the mm is <= 1.
2) For every operation that affects the invalid bit in the pte or the
   rcp byte in the pgste the pcl lock needs to be acquired. The function
   pgste_get_lock gets the pcl lock and returns the current pgste value
   for a pte pointer. The function pgste_set_unlock stores the pgste
   and releases the lock. Between these two calls the bits in the pgste
   can be shuffled.
3) Define two software bits in the pte _PAGE_SWR and _PAGE_SWC to avoid
   calling SetPageDirty and SetPageReferenced from pgtable.h. If the
   host reference backup bit or the host change backup bit has been
   set the dirty/referenced state is transfered to the pte. The common
   code will pick up the state from the pte.
4) Add ptep_modify_prot_start and ptep_modify_prot_commit for mprotect.
5) Remove pgd_populate_kernel, pud_populate_kernel, pmd_populate_kernel
   pgd_clear_kernel, pud_clear_kernel, pmd_clear_kernel and ptep_invalidate.
6) Rename kvm_s390_test_and_clear_page_dirty to
   ptep_test_and_clear_user_dirty and add ptep_test_and_clear_user_young.
7) Define mm_exclusive() and mm_has_pgste() helper to improve readability.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-05-23 10:24:31 +02:00
..
airq.h
appldata.h
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
atomic.h Fix common misspellings 2011-03-31 11:26:23 -03:00
auxvec.h
bitops.h bitops: remove minix bitops from asm/bitops.h 2011-03-23 19:46:22 -07:00
bitsperlong.h
bug.h panic: Allow warnings to set different taint flags 2010-05-19 08:36:48 +01:00
bugs.h
byteorder.h
cache.h [S390] net: provide architecture specific NET_SKB_PAD 2011-02-17 13:13:59 +01:00
cacheflush.h module: undo module RONX protection correctly. 2011-05-19 16:55:26 +09:30
ccwdev.h [S390] ccw_driver: remove duplicate members 2011-03-23 10:15:59 +01:00
ccwgroup.h [S390] ccwgroup_driver: remove duplicate members 2011-03-23 10:15:59 +01:00
checksum.h [S390] convert/optimize csum_fold() to C 2009-09-11 10:29:43 +02:00
chpid.h
chsc.h [S390] cio: move scsw helper functions to header file 2009-09-11 10:29:36 +02:00
cio.h Fix common misspellings 2011-03-31 11:26:23 -03:00
cmb.h
cmpxchg.h [S390] percpu: implement arch specific irqsafe_cpu_ops 2011-05-23 10:24:29 +02:00
compat.h [S390] Add is_32bit_task() helper function 2011-01-12 09:55:25 +01:00
cpcmd.h
cpu.h [S390] correct alignment of cpuid structure 2010-10-25 16:10:19 +02:00
cputime.h [S390] nohz: optimize arch_needs_cpu() 2011-01-05 12:47:28 +01:00
crw.h [S390] cio: wait for channel report 2010-02-26 22:37:29 +01:00
current.h
dasd.h [S390] dasd: Add support for raw ECKD access. 2011-01-05 12:47:30 +01:00
debug.h [S390] s390dbf: Add description for usage of "%s" in sprintf events 2009-09-11 10:29:53 +02:00
delay.h [S390] Provide arch specific mdelay implementation. 2009-10-06 10:35:08 +02:00
device.h
diag.h [S390] replace diag10() with diag10_range() function 2011-05-10 17:13:43 +02:00
div64.h
dma.h
ebcdic.h
elf.h [S390] Remove data execution protection 2011-05-23 10:24:28 +02:00
emergency-restart.h
errno.h
etr.h [S390] use inline assembly contraints available with gcc 3.3.3 2010-02-26 22:37:30 +01:00
extmem.h
fb.h
fcntl.h
fcx.h
ftrace.h ftrace/s390: mcount offset calculation 2011-05-16 15:05:06 -04:00
futex.h futex: Sanitize futex ops argument types 2011-03-11 12:23:31 +01:00
hardirq.h [S390] time: move local_tick_enable()/disable() to timex.h 2011-01-05 12:47:24 +01:00
hugetlb.h [S390] Remove data execution protection 2011-05-23 10:24:28 +02:00
idals.h
io.h
ioctl.h
ioctls.h ioctl: Use asm-generic/ioctls.h on s390 (enables termiox) 2010-10-22 10:20:01 -07:00
ipcbuf.h
ipl.h [S390] kernel: Append scpdata to kernel boot command line 2009-09-11 10:29:46 +02:00
irq_regs.h
irq.h [S390] ap bus: add support for irq statistics 2011-01-05 12:47:26 +01:00
irqflags.h Fix IRQ flag handling naming 2010-10-07 14:08:55 +01:00
isc.h
itcw.h
jump_label.h jump label: Add s390 support 2011-04-04 13:43:16 -04:00
Kbuild KVM: S390: Export kvm_virtio.h 2010-10-24 10:51:30 +02:00
kdebug.h
kexec.h
kmap_types.h kmap_types: make most arches use generic header file 2009-06-16 19:47:51 -07:00
kprobes.h [S390] kprobes: jprobe save and restore 2011-01-05 12:47:24 +01:00
kvm_host.h KVM: Remove unnecessary divide operations 2010-08-01 10:47:30 +03:00
kvm_para.h KVM: Add __KERNEL__ guards to exported headers 2009-09-10 10:46:48 +03:00
kvm_virtio.h KVM: S390: Add virtio hotplug add support 2010-10-24 10:51:29 +02:00
kvm.h KVM: s390: Make psw available on all exits, not just a subset 2009-12-03 09:32:25 +02:00
linkage.h
local64.h arch: Implement local64_t 2010-06-09 11:12:36 +02:00
local.h
lowcore.h [S390] pfault: cpu hotplug vs missing completion interrupts 2011-05-23 10:24:29 +02:00
mathemu.h
mman.h mm: remove duplicate asm/mman.h files 2009-09-22 07:17:42 -07:00
mmu_context.h [S390] Remove data execution protection 2011-05-23 10:24:28 +02:00
mmu.h [S390] refactor page table functions for better pgste support 2011-05-23 10:24:31 +02:00
module.h
monwriter.h
msgbuf.h
mutex.h [S390] mutex: Introduce arch_mutex_cpu_relax() 2011-01-05 12:47:31 +01:00
nmi.h
page.h [S390] refactor page table functions for better pgste support 2011-05-23 10:24:31 +02:00
param.h [S390] Have param.h simply include <asm-generic/param.h>. 2010-01-04 09:05:58 +01:00
pci.h
percpu.h [S390] percpu: implement arch specific irqsafe_cpu_ops 2011-05-23 10:24:29 +02:00
perf_event.h irq_work: Add generic hardirq context callbacks 2010-10-18 19:58:50 +02:00
pgalloc.h [S390] refactor page table functions for better pgste support 2011-05-23 10:24:31 +02:00
pgtable.h [S390] refactor page table functions for better pgste support 2011-05-23 10:24:31 +02:00
poll.h
posix_types.h
processor.h [S390] pfault: cpu hotplug vs missing completion interrupts 2011-05-23 10:24:29 +02:00
ptrace.h [S390] ptrace cleanup 2011-01-05 12:47:31 +01:00
qdio.h [S390] qdio: outbound tasklet scan threshold 2011-01-05 12:47:28 +01:00
qeth.h qeth: support ipv6 query arp cache for HiperSockets 2010-12-10 14:28:47 -08:00
reset.h
resource.h
rwsem.h rwsem: Move duplicate function prototypes to linux/rwsem.h 2011-01-27 12:30:39 +01:00
s390_ext.h [S390] extint: get rid of early code plus cleanup 2011-01-05 12:47:26 +01:00
scatterlist.h [S390] set ARCH_HAS_SG_CHAIN for s390 2010-10-25 16:10:15 +02:00
schid.h
sclp.h
scsw.h [S390] cio: move scsw helper functions to header file 2009-09-11 10:29:36 +02:00
seccomp.h
sections.h
segment.h
sembuf.h
setup.h [S390] topology: clean up facility detection 2010-10-25 16:10:21 +02:00
sfp-machine.h
sfp-util.h Revert "endian: #define __BYTE_ORDER" 2010-05-26 08:30:15 -07:00
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h
sigp.h [S390] spinlock: check virtual cpu running status 2010-02-26 22:37:31 +01:00
smp.h [S390] smp/idle: call init_idle() before starting a new cpu 2011-01-05 12:47:30 +01:00
socket.h net: Generalize socket rx gap / receive queue overflow cmsg 2009-10-12 13:26:31 -07:00
sockios.h [S390] use generic sockios.h header file 2009-12-07 12:51:37 +01:00
sparsemem.h
spinlock_types.h locking: Convert raw_rwlock to arch_rwlock 2009-12-14 23:55:32 +01:00
spinlock.h [S390] use inline assembly contraints available with gcc 3.3.3 2010-02-26 22:37:30 +01:00
stat.h
statfs.h add f_flags to struct statfs(64) 2010-08-09 16:48:44 -04:00
string.h
suspend.h
swab.h [S390] use inline assembly contraints available with gcc 3.3.3 2010-02-26 22:37:30 +01:00
syscall.h [S390] cleanup system call parameter setup 2010-10-25 16:10:19 +02:00
sysinfo.h [S390] topology: move topology sysinfo code 2010-10-25 16:10:21 +02:00
system.h [S390] xchg/cmpxchg: move to own header file 2011-03-23 10:15:59 +01:00
tape390.h
termbits.h [S390] use generic termbits.h header file 2009-12-07 12:51:37 +01:00
termios.h
thread_info.h [S390] Add is_32bit_task() helper function 2011-01-12 09:55:25 +01:00
timer.h
timex.h [S390] time: let local_tick_enable/disable() reprogram the clock comparator 2011-01-05 12:47:25 +01:00
tlb.h [S390] tlb: fix build error caused by THP 2011-01-31 11:30:21 +01:00
tlbflush.h [S390] convert old cpumask API into new one 2011-05-23 10:24:31 +02:00
topology.h [S390] topology: export cpu topology via proc/sysinfo 2010-10-25 16:10:21 +02:00
types.h remove dma64_addr_t 2011-03-23 19:47:18 -07:00
uaccess.h futex: Sanitize futex ops argument types 2011-03-11 12:23:31 +01:00
ucontext.h [S390] 64-bit register support for 31-bit processes 2009-10-06 10:35:10 +02:00
unaligned.h
unistd.h [S390] wire up sys_syncfs 2011-03-23 10:15:58 +01:00
user.h
vdso.h [S390] vdso: use ntp adjusted clock multiplier 2010-04-22 17:17:19 +02:00
vtoc.h
xor.h
zcrypt.h