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linux/include/asm-powerpc
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Adam Litke c9169f8747 [POWERPC] hugepage BUG fix 
On Tue, 2006-08-15 at 08:22 -0700, Dave Hansen wrote:
> kernel BUG in cache_free_debugcheck at mm/slab.c:2748!

Alright, this one is only triggered when slab debugging is enabled.  The
slabs are assumed to be aligned on a HUGEPTE_TABLE_SIZE boundary.  The free
path makes use of this assumption and uses the lowest nibble to pass around
an index into an array of kmem_cache pointers.  With slab debugging turned
on, the slab is still aligned, but the "working" object pointer is not.
This would break the assumption above that a full nibble is available for
the PGF_CACHENUM_MASK.

The following patch reduces PGF_CACHENUM_MASK to cover only the two least
significant bits, which is enough to cover the current number of 4 pgtable
cache types.  Then use this constant to mask out the appropriate part of
the huge pte pointer.

Signed-off-by: Adam Litke <agl@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-08-24 10:07:23 +10:00
..
iseries [POWERPC] Clean up it_lp_queue.h 2006-06-28 15:18:55 +10:00
8253pit.h [PATCH] powerpc: Standardize on _ASM_POWERPC header symbol prefix 2005-09-09 22:11:34 +10:00
a.out.h [PATCH] powerpc: Merge include/asm-ppc*/a.out.h into include/asm-powerpc 2005-09-21 19:21:08 +10:00
abs_addr.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
agp.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
asm-compat.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
atomic.h power: improve inline asm memory constraints 2006-07-08 15:00:28 -07:00
auxvec.h [PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel 2005-11-11 22:25:39 +11:00
backlight.h [PATCH] powermac: More powermac backlight fixes 2006-07-31 13:28:45 -07:00
bitops.h power: improve inline asm memory constraints 2006-07-08 15:00:28 -07:00
bootx.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
btext.h [PATCH] powerpc: Unify udbg (#2) 2006-01-09 14:49:54 +11:00
bug.h [PATCH] git-powerpc: WARN was a dumb idea 2006-03-28 20:48:54 +11:00
bugs.h [PATCH] powerpc: Make check_bugs() static inline 2005-09-09 22:11:35 +10:00
byteorder.h [PATCH] powerpc: merge byteorder.h 2005-09-28 15:42:53 +10:00
cache.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
cacheflush.h [PATCH] powerpc: Merge cacheflush.h and cache.h 2005-11-10 13:09:22 +11:00
checksum.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
compat.h [PATCH] powerpc signal __user annotations 2006-02-08 01:03:46 -05:00
cputable.h [POWERPC] Simplify the code defining the 64-bit CPU features 2006-06-28 15:19:03 +10:00
cputime.h [PATCH] powerpc: implement missing jiffies64_to_cputime64() 2006-07-05 09:39:54 -07:00
current.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
dbdma.h powerpc: Merge various powermac-related header files. 2005-10-20 20:53:39 +10:00
delay.h [POWERPC] Fix mdelay badness on shared processor partitions 2006-06-21 15:01:33 +10:00
div64.h [PATCH] Move the identical files from include/asm-ppc{,64} 2005-08-30 13:32:05 +10:00
dma-mapping.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
dma.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
eeh_event.h [PATCH] powerpc/pseries: clear PCI failure counter if no new failures 2006-04-22 18:46:13 +10:00
eeh.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-06-22 22:11:30 -07:00
elf.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-06-22 22:11:30 -07:00
emergency-restart.h [PATCH] Move the identical files from include/asm-ppc{,64} 2005-08-30 13:32:05 +10:00
errno.h [PATCH] powerpc: Standardize on _ASM_POWERPC header symbol prefix 2005-09-09 22:11:34 +10:00
fcntl.h [PATCH] Consolidate the asm-ppc*/fcntl.h files into asm-powerpc 2005-09-07 16:57:39 -07:00
firmware.h [PATCH] powerpc: Rename and export ppc64_firmware_features 2006-03-28 16:45:20 +11:00
floppy.h [PATCH] irq-flags: POWERPC: Use the new IRQF_ constants 2006-07-02 13:58:47 -07:00
futex.h [PATCH] lightweight robust futexes updates 2006-03-27 08:44:49 -08:00
grackle.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
hardirq.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
heathrow.h powerpc: Fix some #ifndef __KERNEL__ that should be #ifdef 2006-01-09 15:14:05 +11:00
hvcall.h [POWERPC] check firmware state before suspending 2006-06-15 19:31:27 +10:00
hvconsole.h [PATCH] powerpc: hvc_console updates 2006-03-28 16:45:26 +11:00
hvcserver.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
hw_irq.h [PATCH] genirq: add ->retrigger() irq op to consolidate hw_irq_resend() 2006-06-29 10:26:23 -07:00
i8259.h [POWERPC] Add new interrupt mapping core and change platforms to use it 2006-07-03 21:36:01 +10:00
ibmebus.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
ide.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
immap_86xx.h [POWERPC] Add 8641 Register space and IRQ definitions. 2006-06-21 15:01:28 +10:00
io.h Merge branch 'merge' 2006-04-29 16:15:57 +10:00
ioctl.h [PATCH] powerpc: Standardize on _ASM_POWERPC header symbol prefix 2005-09-09 22:11:34 +10:00
ioctls.h powerpc: remove duplicate ioctl definitions 2005-11-01 14:36:30 +11:00
iommu.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-06-22 22:11:30 -07:00
ipc.h [PATCH] Move the identical files from include/asm-ppc{,64} 2005-08-30 13:32:05 +10:00
ipcbuf.h [PATCH] powerpc: Keep fixing merged ipcbuf.h 2005-11-03 16:58:17 +11:00
ipic.h [PATCH] powerpc: moved ipic code to arch/powerpc 2006-01-09 14:48:57 +11:00
irq.h [PATCH] powerpc: fix trigger handling in the new irq code 2006-07-10 13:24:20 -07:00
irqflags.h [PATCH] lockdep: irqtrace subsystem, core 2006-07-03 15:27:03 -07:00
Kbuild Add Kbuild file for PowerPC 'make headers_install' 2006-06-18 12:17:47 +01:00
kdebug.h [PATCH] Notify page fault call chain for powerpc 2006-06-26 09:58:22 -07:00
kdump.h [POWERPC] kdump: Reserve the existing TCE mappings left by the first kernel 2006-06-28 11:59:46 +10:00
kexec.h [POWERPC] Make crash.c work on 32-bit and 64-bit 2006-08-17 16:41:10 +10:00
keylargo.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
kmap_types.h [PATCH] powerpc: Merge kmap_types.h 2005-09-19 09:38:49 +10:00
kprobes.h [PATCH] IA64: kprobe invalidate icache of jump buffer 2006-07-31 13:28:38 -07:00
linkage.h [PATCH] powerpc: Standardize on _ASM_POWERPC header symbol prefix 2005-09-09 22:11:34 +10:00
lmb.h [PATCH] powerpc: Remove calculation of io hole 2006-03-22 15:04:30 +11:00
local.h [PATCH] Move all the very similar files to asm-powerpc 2005-08-30 13:32:06 +10:00
lppaca.h [PATCH] Fix sparse parse error in lppaca.h 2006-01-17 17:18:25 -08:00
machdep.h [POWERPC] Add new interrupt mapping core and change platforms to use it 2006-07-03 21:36:01 +10:00
macio.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
mc146818rtc.h [PATCH] powerpc: Standardize on _ASM_POWERPC header symbol prefix 2005-09-09 22:11:34 +10:00
mediabay.h powerpc: Merge various powermac-related header files. 2005-10-20 20:53:39 +10:00
mman.h [PATCH] add asm-generic/mman.h 2006-02-15 15:32:22 -08:00
mmu_context.h [POWERPC] Correct the MAX_CONTEXT definition 2006-06-29 16:16:15 +10:00
mmu.h [POWERPC] powerpc: Initialise ppc_md htab pointers earlier 2006-06-28 11:59:47 +10:00
mmzone.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
module.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
mpc86xx.h Merge branch 'for_paulus' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc 2006-06-28 16:10:53 +10:00
mpic.h [POWERPC] Add new interrupt mapping core and change platforms to use it 2006-07-03 21:36:01 +10:00
msgbuf.h [PATCH] powerpc: Merge a few more include files 2005-09-09 22:11:35 +10:00
mutex.h [PATCH] mutex subsystem, add default include/asm-*/mutex.h files 2006-01-09 15:59:19 -08:00
namei.h [PATCH] powerpc: Standardize on _ASM_POWERPC header symbol prefix 2005-09-09 22:11:34 +10:00
nvram.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
of_device.h typo fixes: mecanism -> mechanism 2006-06-30 18:20:44 +02:00
ohare.h powerpc: Fix some #ifndef __KERNEL__ that should be #ifdef 2006-01-09 15:14:05 +11:00
oprofile_impl.h [PATCH] powerpc: Remove oprofile spinlock backtrace code 2006-03-29 13:44:16 +11:00
paca.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-06-22 22:11:30 -07:00
page_32.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
page_64.h [PATCH] powerpc: Fix pagetable bloat for hugepages 2006-04-28 15:02:51 +10:00
page.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-06-22 22:11:30 -07:00
param.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
parport.h [PATCH] powerpc: parallel port init fix 2006-01-11 14:49:24 +11:00
pci-bridge.h [POWERPC] pcibus_to_node fixes 2006-06-15 19:31:26 +10:00
pci.h [PATCH] 64bit resource: change pci core and arch code to use resource_size_t 2006-06-27 09:24:00 -07:00
percpu.h [PATCH] lockdep: add per_cpu_offset() 2006-07-03 15:27:00 -07:00
pgalloc.h [POWERPC] hugepage BUG fix 2006-08-24 10:07:23 +10:00
pgtable-4k.h powerpc: Use 64k pages without needing cache-inhibited large pages 2006-06-15 10:45:18 +10:00
pgtable-64k.h powerpc: Use 64k pages without needing cache-inhibited large pages 2006-06-15 10:45:18 +10:00
pgtable.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-06-22 22:11:30 -07:00
pmac_feature.h [PATCH] powerpc: Kill _machine and hard-coded platform numbers 2006-03-28 23:15:54 +11:00
pmac_low_i2c.h [PATCH] 3/5 powerpc: Add platform functions interpreter 2006-01-09 15:47:18 +11:00
pmac_pfunc.h typo fixes: mecanism -> mechanism 2006-06-30 18:20:44 +02:00
pmc.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
poll.h [PATCH] POLLRDHUP/EPOLLRDHUP handling for half-closed devices notifications 2006-03-25 08:22:56 -08:00
posix_types.h [PATCH] powerpc: Merge asm-ppc*/posix_types.h 2005-09-21 19:21:07 +10:00
ppc_asm.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ppc-pci.h [PATCH] powerpc: properly configure DDR/P5IOC children devs 2006-03-16 16:55:07 +11:00
processor.h [POWERPC] disable floating point exceptions for init 2006-06-21 15:01:33 +10:00
prom.h [POWERPC] Add new interrupt mapping core and change platforms to use it 2006-07-03 21:36:01 +10:00
pSeries_reconfig.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
ptrace.h [PATCH] powerpc: enable PPC_PTRACE_[GS]ETREGS on ppc32 2006-06-09 21:20:51 +10:00
reg_8xx.h [PATCH] powerpc: Merge cacheflush.h and cache.h 2005-11-10 13:09:22 +11:00
reg.h [POWERPC] cell: add RAS support 2006-06-21 15:01:29 +10:00
resource.h [PATCH] Move all the very similar files to asm-powerpc 2005-08-30 13:32:06 +10:00
rtas.h [POWERPC] Fix might-sleep warning on removing cpus 2006-08-08 16:00:11 +10:00
rtc.h powerpc: Make set_rtc_time() return error code from lower-level function 2005-10-22 15:57:55 +10:00
rwsem.h [PATCH] lockdep: remove RWSEM_DEBUG remnants 2006-07-03 15:27:01 -07:00
scatterlist.h [PATCH] powerpc: merge scatterlist.h 2005-10-27 16:45:52 +10:00
seccomp.h powerpc: Fix some #ifndef __KERNEL__ that should be #ifdef 2006-01-09 15:14:05 +11:00
sections.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
semaphore.h Merge ../linux-2.6 by hand 2005-10-31 13:37:12 +11:00
sembuf.h [PATCH] powerpc: Standardize on _ASM_POWERPC header symbol prefix 2005-09-09 22:11:34 +10:00
serial.h powerpc: Introduce a new config symbol to control 16550 early debug code 2006-01-10 16:19:05 +11:00
setup.h [PATCH] powerpc: Merge a few more include files 2005-09-09 22:11:35 +10:00
shmbuf.h [PATCH] powerpc: Fix __power64__ typos that should be __powerpc64__ 2005-09-09 22:11:35 +10:00
shmparam.h [PATCH] powerpc: Standardize on _ASM_POWERPC header symbol prefix 2005-09-09 22:11:34 +10:00
sigcontext.h powerpc: merge sigcontext.h 2005-11-03 16:24:25 +11:00
siginfo.h [PATCH] ppc64: Add definitions for new PTRACE calls 2005-09-12 17:19:12 +10:00
signal.h [PATCH] irq-flags: POWERPC: Use the new IRQF_ constants 2006-07-02 13:58:47 -07:00
smp.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
smu.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
socket.h [AF_UNIX]: Datagram getpeersec 2006-06-29 16:58:06 -07:00
sockios.h [PATCH] powerpc: Standardize on _ASM_POWERPC header symbol prefix 2005-09-09 22:11:34 +10:00
sparsemem.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
spinlock_types.h [PATCH] powerpc: merge include/asm-ppc*/spinlock_types.h into include/asm-powerpc/spinlock_types.h 2005-09-21 19:21:09 +10:00
spinlock.h [PATCH] powerpc: use lwsync in atomics, bitops, lock functions 2006-01-13 21:18:50 +11:00
spu_csa.h [POWERPC] spufs: one more fix for 64k pages 2006-06-21 15:01:32 +10:00
spu_priv1.h [POWERPC] spufs: fix spu irq affinity setting 2006-06-21 15:01:31 +10:00
spu.h [POWERPC] Add new interrupt mapping core and change platforms to use it 2006-07-03 21:36:01 +10:00
sstep.h powerpc: Make single-stepping emulation (mostly) usable on 32-bit 2005-10-28 22:48:08 +10:00
stat.h powerpc: merge stat.h 2005-11-03 16:02:23 +11:00
statfs.h [PATCH] powerpc: merge include/asm-ppc*/statfs.h into include/asm-powerpc/statfs.h 2005-09-21 19:21:10 +10:00
string.h powerpc: fix strncasecmp prototype 2006-03-25 09:41:40 -08:00
synch.h [PATCH] powerpc: newline for ISYNC_ON_SMP 2006-02-24 14:06:00 +11:00
syscalls.h [PATCH] powerpc: declare arch syscalls in <asm/syscalls.h> 2006-03-27 14:48:22 +11:00
systbl.h [POWERPC] Unify ppc syscall tables 2006-06-21 15:01:32 +10:00
system.h [POWERPC] Fix gettimeofday inaccuracies 2006-08-23 15:51:18 +10:00
tce.h [PATCH] powerpc: kill union tce_entry 2006-04-29 18:07:54 +10:00
termbits.h [PATCH] Add CMSPAR to termbits.h for powerpc and alpha 2006-05-26 11:55:46 -07:00
termios.h powerpc: use asm-generic/termios.h 2005-11-01 14:36:55 +11:00
thread_info.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
time.h [POWERPC] update asm-powerpc/time.h 2006-06-28 15:18:56 +10:00
timex.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
tlb.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
tlbflush.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
todc.h [POWERPC] todc: add support for Time-Of-Day-Clock 2006-06-29 16:22:46 +10:00
topology.h [PATCH] sched: mc/smt power savings sched policy 2006-06-27 17:32:45 -07:00
tsi108_irq.h [POWERPC] Update mpc7448hpc2 board irq support using device tree 2006-08-23 15:51:18 +10:00
tsi108.h [POWERPC] Update mpc7448hpc2 board irq support using device tree 2006-08-23 15:51:18 +10:00
types.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
uaccess.h powerpc: Fix incorrect might_sleep in __get_user/__put_user on kernel addresses 2006-05-03 23:06:46 +10:00
ucontext.h powerpc: merge ucontext.h 2005-11-03 16:59:17 +11:00
udbg.h [POWERPC] Add udbg support for RTAS console 2006-06-28 11:59:48 +10:00
unaligned.h [PATCH] powerpc: Standardize on _ASM_POWERPC header symbol prefix 2005-09-09 22:11:34 +10:00
uninorth.h powerpc: Merge various powermac-related header files. 2005-10-20 20:53:39 +10:00
unistd.h Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-05-24 09:22:21 +01:00
user.h [PATCH] powerpc: Merge a few more include files 2005-09-09 22:11:35 +10:00
vdso_datapage.h [PATCH] powerpc: Kill _machine and hard-coded platform numbers 2006-03-28 23:15:54 +11:00
vdso.h [PATCH] powerpc: Make the vDSO functions set error code (#2) 2005-11-16 14:05:11 +11:00
vga.h [PATCH] vgacon: make VGA_MAP_MEM take size, remove extra use 2006-06-22 15:05:58 -07:00
vio.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-06-22 22:11:30 -07:00
xmon.h powerpc: Simplify and clean up the xmon terminal I/O 2005-11-08 22:55:08 +11:00
xor.h [PATCH] Move the identical files from include/asm-ppc{,64} 2005-08-30 13:32:05 +10:00