Martin Schwidefsky 0d01792300 [S390] pud_present/pmd_present bug. ...

Git commit 3610cce87af0693603db171d5b6f6735f5e3dc5b (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

..

a.out.h

arch: personality independent stack top

2007-07-19 10:04:45 -07:00

appldata.h

[S390] Inline assembly cleanup.

2006-09-28 16:56:43 +02:00

atomic.h

[S390] Change atomic_read/set to inline functions with barrier semantics.

2007-08-22 13:51:49 +02:00

auxvec.h

[PATCH] auxiliary vector cleanups

2005-09-07 16:57:21 -07:00

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

[S390] check_bugs() should be inline.

2007-03-05 23:35:50 +01:00

byteorder.h

[S390] Inline assembly cleanup.

2006-09-28 16:56:43 +02:00

cache.h

[S390] Get rid of ARCH_KMALLOC_MINALIGN.

2007-10-12 16:13:07 +02:00

cacheflush.h

[PATCH] Optimize D-cache alias handling on fork

2006-12-13 09:27:08 -08:00

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

[S390] Fix TCP/UDP pseudo header checksum computation.

2007-03-26 20:43:46 +02:00

chpid.h

[S390] cio: Channel-path configure function.

2007-04-27 16:01:39 +02:00

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

Introduce compat_u64 and compat_s64 types

2007-07-16 09:05:48 -07:00

cpcmd.h

[S390] cpcmd <-> __cpcmd calling issues

2006-12-04 15:40:30 +01:00

cpu.h

[S390] Add per-cpu idle time / idle count sysfs attributes.

2007-10-22 12:52:47 +02:00

cputime.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

current.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

dasd.h

[S390] New DASD feature for ERP related logging

2006-12-08 15:54:15 +01:00

debug.h

[PATCH] Fix 'make headers_check' on s390

2006-09-16 12:54:31 -07:00

delay.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

device.h

Driver core: add dev_archdata to struct device

2006-12-01 14:52:01 -08:00

diag.h

[S390] vmur: fix diag14 exceptions with addresses > 2GB.

2007-08-22 13:51:47 +02:00

div64.h

[S390] __div64_32 for 31 bit.

2006-09-28 16:55:39 +02:00

dma.h

[S390] empty function defines.

2006-09-20 15:58:51 +02:00

ebcdic.h

[S390] Inline assembly cleanup.

2006-09-28 16:56:43 +02:00

elf.h

[S390] add hardware capability support (ELF_HWCAP).

2007-05-04 18:48:35 +02:00

emergency-restart.h

[PATCH] Add emergency_restart()

2005-07-26 14:35:41 -07:00

errno.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

etr.h

[S390] ETR support.

2007-02-05 21:18:19 +01:00

extmem.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

fb.h

fbdev: detect primary display device

2007-07-17 10:23:11 -07:00

fcntl.h

[PATCH] Clean up struct flock64 definitions

2005-09-07 16:57:38 -07:00

futex.h

[S390] don't call handle_mm_fault() if in an atomic context.

2007-01-09 10:18:50 +01:00

hardirq.h

[S390] ETR support.

2007-02-05 21:18:19 +01:00

idals.h

Don't include linux/config.h from anywhere else in include/

2006-04-26 12:56:16 +01:00

io.h

[S390] remove __io_virt and mmiowb.

2007-02-12 15:49:57 +01:00

ioctl.h

[PATCH] Generic ioctl.h

2006-01-10 08:01:34 -08:00

ioctls.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

ipcbuf.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

ipl.h

[S390] Avoid sparse warnings.

2007-05-10 15:45:52 +02:00

irq_regs.h

[S390] irq change build fixes.

2006-10-06 16:38:35 +02:00

irq.h

[PATCH] Make touch_nmi_watchdog imply touch_softlockup_watchdog on all archs

2006-09-29 09:18:05 -07:00

irqflags.h

[S390] Inline assembly cleanup.

2006-09-28 16:56:43 +02:00

Kbuild

[S390] Unexport <asm/z90crypt.h>, export <asm/zcrypt.h> in its place.

2006-09-24 22:07:25 +01:00

kdebug.h

x86: optimize page faults like all other achitectures and kill notifier cruft

2007-10-16 09:42:50 -07:00

kexec.h

kdump/kexec: calculate note size at compile time

2007-05-08 11:15:07 -07:00

kmap_types.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

kprobes.h

kprobes: support kretprobe blacklist

2007-10-16 09:43:10 -07:00

linkage.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

local.h

[S390] local_t cleanup : use asm-generic/local.h.

2007-02-21 10:55:55 +01:00

lowcore.h

[S390] add hardware capability support (ELF_HWCAP).

2007-05-04 18:48:35 +02:00

mathemu.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

mman.h

[PATCH] add asm-generic/mman.h

2006-02-15 15:32:22 -08:00

mmu_context.h

[S390] Cleanup page table definitions.

2007-10-22 12:52:49 +02:00

mmu.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

module.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

monwriter.h

[S390] Linux API for writing z/VM APPLDATA Monitor records.

2006-09-20 15:59:34 +02:00

msgbuf.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

mutex.h

[PATCH] mutex subsystem, add default include/asm-*/mutex.h files

2006-01-09 15:59:19 -08:00

namei.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

page.h

[S390] 4level-fixup cleanup

2007-10-22 12:52:49 +02:00

param.h

[S390] Kconfig: use common Kconfig files for s390.

2007-05-10 15:46:08 +02:00

pci.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

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

Consolidate asm/poll.h

2007-05-11 08:29:34 -07:00

posix_types.h

[PATCH] FD_ZERO build fix

2007-01-11 18:18:22 -08:00

processor.h

[S390] Cleanup page table definitions.

2007-10-22 12:52:49 +02:00

ptrace.h

[S390] Move psw_set_key.

2007-06-19 13:10:20 +02:00

qdio.h

s390: free skbs in finite amount of time in qeth

2007-05-08 01:16:23 -04:00

qeth.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

reset.h

[S390] Convert memory detection into C code.

2007-02-05 21:18:37 +01:00

resource.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

rwsem.h

[S390] Inline assembly cleanup.

2006-09-28 16:56:43 +02:00

s390_ext.h

[S390] remove packed attribute from ext_int_info_t.

2007-10-12 16:13:07 +02:00

s390_rdev.h

[PATCH] s390: email-address change

2006-01-14 18:27:10 -08:00

scatterlist.h

Add CONFIG_DEBUG_SG sg validation

2007-10-22 21:20:03 +02:00

sclp.h

[S390] sclp: Test facility list before executing a service call.

2007-07-10 11:24:43 +02:00

sections.h

[S390] nss: Free unused memory in kernel image.

2007-02-21 10:55:37 +01:00

segment.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

semaphore.h

kill DECLARE_MUTEX_LOCKED

2007-10-17 08:42:47 -07:00

sembuf.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

setup.h

[S390] zfcpdump support.

2007-04-27 16:01:44 +02:00

sfp-machine.h

[S390] Bogomips calculation for 64 bit.

2007-07-10 11:24:47 +02:00

sfp-util.h

[S390] Bogomips calculation for 64 bit.

2007-07-10 11:24:47 +02:00

shmbuf.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

shmparam.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

sigcontext.h

[PATCH] s390: sigcontext.h vs __user

2006-01-14 18:27:08 -08:00

siginfo.h

[PATCH] consolidate SIGEV_PAD_SIZE

2005-05-01 08:59:08 -07:00

signal.h

[PATCH] irq-flags: S390: Use the new IRQF_ constants

2006-07-02 13:58:48 -07:00

sigp.h

[S390] Inline assembly cleanup.

2006-09-28 16:56:43 +02:00

smp.h

[S390] Convert to smp_call_function_single.

2007-07-27 12:29:17 +02:00

socket.h

[NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support

2007-04-25 22:24:21 -07:00

sockios.h

[NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolution

2007-04-25 22:24:04 -07:00

spinlock_types.h

[PATCH] Directed yield: direct yield of spinlocks for s390.

2006-10-01 00:39:22 -07:00

spinlock.h

[S390] incorrect placement of include.

2006-10-04 20:02:12 +02:00

stat.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

statfs.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

string.h

[S390] Inline assembly cleanup.

2006-09-28 16:56:43 +02:00

suspend.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

system.h

[S390] Fix irq tracing and lockdep_sys_exit calls.

2007-11-20 11:13:45 +01:00

tape390.h

[S390] Add crypto support for 3592 tape devices

2007-02-05 21:18:26 +01:00

termbits.h

lots-of-architectures: enable arbitary speed tty support

2007-07-10 17:51:13 -07:00

termios.h

[PATCH] consolidate line discipline number definitions

2007-02-11 10:51:26 -08:00

thread_info.h

[S390] preempt_count initialization.

2006-06-29 15:02:47 +02:00

timer.h

[S390] Get rid of a lot of sparse warnings.

2007-02-05 21:16:47 +01:00

timex.h

[S390] Support for s390 Pseudo Random Number Generator

2007-02-05 21:18:22 +01:00

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

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

topology.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

types.h

remove strict ansi check from __u64 in asm/types.h

2007-10-17 08:42:53 -07:00

uaccess.h

[S390] noexec protection

2007-02-05 21:18:17 +01:00

ucontext.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

unaligned.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

unistd.h

[S390] Wire up sys_fallocate.

2007-07-27 12:29:19 +02:00

user.h

[PATCH] s390: uml ptrace fixes

2005-06-04 17:13:00 -07:00

vtoc.h

Use __uXX types for S390 DASD volume label definitions which are user-visible

2006-05-04 01:18:33 +01:00

xor.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

zcrypt.h

[S390] zcrypt: remove duplicated struct CPRBX definition

2007-10-12 16:13:04 +02:00