Martin Schwidefsky 0d01792300 [S390] pud_present/pmd_present bug. ... Git commit 3610cce87a (yeah my own :-/) introduced a bug in regard to pud/pmd table entries. If the address of the page table refered to by a pud/pmd value happens to have zeroes in the lower 32 bits, pud_present and pmd_present return false. The obvious effect is that this triggers the BUG_ON in exit_mmap because some ptes will not get released on process end. Worse is that the next fault for memory covered by that pud/pmd will allocate another pmd/pte table and populate the pud/pmd entry. The old page table entries hanging below this entry are lost! The fix is simple, properly check against 0. The check is added for pud_none/pmd_none as well even if these two functions work because the invalid bit is in the lower 32 bits. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		2007-12-17 16:25:56 +01:00
..
Kbuild	…
a.out.h	arch: personality independent stack top	2007-07-19 10:04:45 -07:00
appldata.h	…
atomic.h	[S390] Change atomic_read/set to inline functions with barrier semantics.	2007-08-22 13:51:49 +02:00
auxvec.h	…
bitops.h	forbid asm/bitops.h direct inclusion	2007-10-19 11:53:41 -07:00
bug.h	Fix WARN_ON() on bitfield ops for all other archs	2007-08-01 20:45:38 -07:00
bugs.h	…
byteorder.h	…
cache.h	[S390] Get rid of ARCH_KMALLOC_MINALIGN.	2007-10-12 16:13:07 +02:00
cacheflush.h	…
ccwdev.h	[S390] cio: Introduce ccw_bus_type.shutdown.	2007-10-12 16:13:01 +02:00
ccwgroup.h	[S390] cio: Add docbook comments.	2007-10-12 16:12:59 +02:00
checksum.h	…
chpid.h	…
cio.h	[S390] cio: Add docbook comments.	2007-10-12 16:12:59 +02:00
cmb.h	[S390] cio: Kerneldoc comments for cmf.	2007-10-12 16:12:59 +02:00
compat.h	…
cpcmd.h	…
cpu.h	[S390] Add per-cpu idle time / idle count sysfs attributes.	2007-10-22 12:52:47 +02:00
cputime.h	…
current.h	…
dasd.h	…
debug.h	…
delay.h	…
device.h	…
diag.h	[S390] vmur: fix diag14 exceptions with addresses > 2GB.	2007-08-22 13:51:47 +02:00
div64.h	…
dma.h	…
ebcdic.h	…
elf.h	…
emergency-restart.h	…
errno.h	…
etr.h	…
extmem.h	…
fb.h	fbdev: detect primary display device	2007-07-17 10:23:11 -07:00
fcntl.h	…
futex.h	…
hardirq.h	…
idals.h	…
io.h	…
ioctl.h	…
ioctls.h	…
ipcbuf.h	…
ipl.h	…
irq.h	…
irq_regs.h	…
irqflags.h	…
kdebug.h	x86: optimize page faults like all other achitectures and kill notifier cruft	2007-10-16 09:42:50 -07:00
kexec.h	…
kmap_types.h	…
kprobes.h	kprobes: support kretprobe blacklist	2007-10-16 09:43:10 -07:00
linkage.h	…
local.h	…
lowcore.h	…
mathemu.h	…
mman.h	…
mmu.h	…
mmu_context.h	[S390] Cleanup page table definitions.	2007-10-22 12:52:49 +02:00
module.h	…
monwriter.h	…
msgbuf.h	…
mutex.h	…
namei.h	…
page.h	[S390] 4level-fixup cleanup	2007-10-22 12:52:49 +02:00
param.h	…
pci.h	…
percpu.h	define new percpu interface for shared data	2007-07-19 10:04:44 -07:00
pgalloc.h	[S390] 4level-fixup cleanup	2007-10-22 12:52:49 +02:00
pgtable.h	[S390] pud_present/pmd_present bug.	2007-12-17 16:25:56 +01:00
poll.h	…
posix_types.h	…
processor.h	[S390] Cleanup page table definitions.	2007-10-22 12:52:49 +02:00
ptrace.h	…
qdio.h	…
qeth.h	…
reset.h	…
resource.h	…
rwsem.h	…
s390_ext.h	[S390] remove packed attribute from ext_int_info_t.	2007-10-12 16:13:07 +02:00
s390_rdev.h	…
scatterlist.h	Add CONFIG_DEBUG_SG sg validation	2007-10-22 21:20:03 +02:00
sclp.h	…
sections.h	…
segment.h	…
semaphore.h	kill DECLARE_MUTEX_LOCKED	2007-10-17 08:42:47 -07:00
sembuf.h	…
setup.h	…
sfp-machine.h	…
sfp-util.h	…
shmbuf.h	…
shmparam.h	…
sigcontext.h	…
siginfo.h	…
signal.h	…
sigp.h	…
smp.h	[S390] Convert to smp_call_function_single.	2007-07-27 12:29:17 +02:00
socket.h	…
sockios.h	…
spinlock.h	…
spinlock_types.h	…
stat.h	…
statfs.h	…
string.h	…
suspend.h	…
system.h	[S390] Fix irq tracing and lockdep_sys_exit calls.	2007-11-20 11:13:45 +01:00
tape390.h	…
termbits.h	…
termios.h	…
thread_info.h	…
timer.h	…
timex.h	…
tlb.h	[S390] 4level-fixup cleanup	2007-10-22 12:52:49 +02:00
tlbflush.h	[S390] Cleanup page table definitions.	2007-10-22 12:52:49 +02:00
todclk.h	…
topology.h	…
types.h	remove strict ansi check from __u64 in asm/types.h	2007-10-17 08:42:53 -07:00
uaccess.h	…
ucontext.h	…
unaligned.h	…
unistd.h	[S390] Wire up sys_fallocate.	2007-07-27 12:29:19 +02:00
user.h	…
vtoc.h	…
xor.h	…
zcrypt.h	[S390] zcrypt: remove duplicated struct CPRBX definition	2007-10-12 16:13:04 +02:00