kernel-ark/include/asm-s390
Martin Schwidefsky 833774849d [S390] Fix pte type checking.
handle_pte_fault uses pte_present, pte_none and pte_file to find out
the type of a pte. That is done without holding the page table lock.
This clashes with the way how ptep_clear_flush removes active page
table entries from the system. First the ipte instruction is used
to invalidate the pte and remove all plt entries for the page. The
ipte sets the hardware invalid bit without changing any other bit.
After the ipte finished the pte is cleared. A concurrent fault can
observe the the previously valid pte with the invalid bit set. With
the current encoding of the different pte types an invalidated
read-only pte can be misinterpreted as a swap-pte.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-18 18:30:51 +02:00
..
a.out.h
appldata.h
atomic.h
auxvec.h
bitops.h
bug.h
bugs.h
byteorder.h
cache.h
cacheflush.h
ccwdev.h
ccwgroup.h
checksum.h
cio.h [S390] cio: Use ccw_dev_id and subchannel_id in ccw_device_private 2006-10-11 15:31:38 +02:00
cmb.h
compat.h
cpcmd.h
cputime.h
current.h
dasd.h
debug.h
delay.h
div64.h
dma-mapping.h
dma.h
ebcdic.h
elf.h
emergency-restart.h [PATCH] Add emergency_restart() 2005-07-26 14:35:41 -07:00
errno.h
extmem.h
fcntl.h
futex.h
hardirq.h
idals.h
io.h
ioctl.h
ioctls.h
ipc.h
ipcbuf.h
irq_regs.h
irq.h
irqflags.h
Kbuild
kdebug.h [S390] add kprobes support. 2006-09-20 15:58:39 +02:00
kexec.h
kmap_types.h
kprobes.h
linkage.h
local.h
lowcore.h
mathemu.h
mman.h
mmu_context.h
mmu.h
module.h
monwriter.h
msgbuf.h
mutex.h
namei.h
page.h
param.h
pci.h
percpu.h
pgalloc.h
pgtable.h [S390] Fix pte type checking. 2006-10-18 18:30:51 +02:00
poll.h
posix_types.h
processor.h
ptrace.h
qdio.h
qeth.h
resource.h
rwsem.h
s390_ext.h
s390_rdev.h
scatterlist.h
sections.h
segment.h
semaphore.h
sembuf.h
setup.h
sfp-machine.h
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h
sigp.h
smp.h
socket.h
sockios.h
spinlock_types.h
spinlock.h
stat.h
statfs.h
string.h
suspend.h
system.h
tape390.h
termbits.h
termios.h
thread_info.h
timer.h
timex.h
tlb.h
tlbflush.h
todclk.h
topology.h
types.h
uaccess.h
ucontext.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unaligned.h
unistd.h [S390] Wire up epoll_pwait syscall. 2006-10-18 18:30:45 +02:00
user.h
vtoc.h
xor.h
zcrypt.h