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linux/include/asm-powerpc
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David Gibson 86df864249 Correct hash flushing from huge_ptep_set_wrprotect() 
As Andy Whitcroft recently pointed out, the current powerpc version of
huge_ptep_set_wrprotect() has a bug.  It just calls ptep_set_wrprotect()
which in turn calls pte_update() then hpte_need_flush() with the 'huge'
argument set to 0.  This will cause hpte_need_flush() to flush the wrong
hash entries (of any).  Andy's fix for this is already in the powerpc
tree as commit 016b33c495.

I have confirmed this is a real bug, not masked by some other
synchronization, with a new testcase for libhugetlbfs.  A process write
a (MAP_PRIVATE) hugepage mapping, fork(), then alter the mapping and
have the child incorrectly see the second write.

Therefore, this should be fixed for 2.6.26, and for the stable tree.
Here is a suitable patch for 2.6.26, which I think will also be suitable
for the stable tree (neither of the headers in question has been changed
much recently).

It is cut down slighlty from Andy's original version, in that it does
not include a 32-bit version of huge_ptep_set_wrprotect().  Currently,
hugepages are not supported on any 32-bit powerpc platform.  When they
are, a suitable 32-bit version can be added - the only 32-bit hardware
which supports hugepages does not use the conventional hashtable MMU and
so will have different needs anyway.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-08 09:27:58 -07:00
..
iseries [POWERPC] iSeries: Localise and constify some iSeries data 2008-04-15 21:21:25 +10:00
8xx_immap.h [POWERPC] include/asm-powerpc/: Spelling fixes 2007-12-20 16:17:44 +11:00
8253pit.h
a.out.h aout: move STACK_TOP[_MAX] to asm/processor.h 2008-02-08 09:22:29 -08:00
abs_addr.h [LIB]: Make PowerPC LMB code generic so sparc64 can use it too. 2008-02-13 16:56:49 -08:00
agp.h x86: remove flush_agp_mappings() 2008-01-30 13:34:07 +01:00
asm-compat.h
atomic.h
auxvec.h
backlight.h
bitops.h generic: implement __fls on all 64-bit archs 2008-04-26 19:21:16 +02:00
bootx.h
btext.h
bug.h
bugs.h
byteorder.h
cache.h
cacheflush.h
cell-pmu.h
cell-regs.h
checksum.h
clk_interface.h
compat.h asm-*/compat.h: fix typo in comment 2008-02-03 16:32:51 +02:00
cpm1.h [POWERPC] CPM: Move opcodes common to CPM1 and CPM2 to include/asm-powerpc/cpm.h 2008-04-17 01:01:37 -05:00
cpm2.h [POWERPC] CPM: Move opcodes common to CPM1 and CPM2 to include/asm-powerpc/cpm.h 2008-04-17 01:01:37 -05:00
cpm.h [POWERPC] CPM: Move opcodes common to CPM1 and CPM2 to include/asm-powerpc/cpm.h 2008-04-17 01:01:37 -05:00
cputable.h [POWERPC] Made FSL Book-E PMC support more generic 2008-02-05 23:34:14 -06:00
cputhreads.h [POWERPC] Fix thinko in cpu_thread_mask_to_cores() 2008-02-26 22:17:03 +11:00
cputime.h taskstats scaled time cleanup 2008-02-06 10:41:00 -08:00
current.h
dbdma.h
dcr-mmio.h
dcr-native.h [POWERPC] 4xx: Add dcri_clrset() for locked read/modify/write functionality 2008-03-26 07:20:38 -05:00
dcr-regs.h [POWERPC] 4xx: Add PPC4xx L2-cache support (440GX) 2008-03-26 07:27:54 -05:00
dcr.h
delay.h
device.h
div64.h
dma-mapping.h [POWERPC] Add set_dma_ops() to match get_dma_ops() 2008-01-31 12:11:09 +11:00
dma.h scheduled OSS driver removal 2008-02-06 10:41:02 -08:00
edac.h
eeh_event.h
eeh.h
elf.h [POWERPC] Switch to generic compat_binfmt_elf code 2008-02-07 20:40:18 +11:00
emergency-restart.h
errno.h
exception.h [POWERPC] irqtrace support for 64-bit powerpc 2008-04-18 15:38:47 +10:00
fb.h
fcntl.h
firmware.h [POWERPC] celleb: Add support for native CBE 2007-12-11 13:34:40 +11:00
fixmap.h [POWERPC] Port fixmap from x86 and use for kmap_atomic 2008-04-24 20:58:02 +10:00
floppy.h
fs_pd.h
fsl_lbc.h [POWERPC] fsl_lbc: implement few UPM routines 2008-04-17 01:01:38 -05:00
futex.h asm-*/futex.h should include linux/uaccess.h 2008-04-30 08:29:52 -07:00
gpio.h [POWERPC] Implement support for the GPIO LIB API 2008-04-17 07:46:11 +10:00
grackle.h
hardirq.h
heathrow.h
highmem.h [POWERPC] Port fixmap from x86 and use for kmap_atomic 2008-04-24 20:58:02 +10:00
hugetlb.h Correct hash flushing from huge_ptep_set_wrprotect() 2008-07-08 09:27:58 -07:00
hvcall.h
hvconsole.h
hvcserver.h
hw_irq.h [POWERPC] irqtrace support for 64-bit powerpc 2008-04-18 15:38:47 +10:00
hydra.h
i8259.h
ibmebus.h
ide.h ide: remove ide_init_default_irq() macro 2008-04-18 00:46:35 +02:00
immap_86xx.h [POWERPC] 86xx: fix guts_set_dmacr() and add guts_set_pmuxcr_dma() to immap_86xx.h 2007-12-11 13:57:18 -06:00
immap_cpm2.h
immap_qe.h [POWERPC] QE: immap_qe.h should include asm/io.h 2008-04-17 01:01:39 -05:00
io-defs.h [POWERPC] cell: Generalize io-workarounds code 2008-04-24 21:08:12 +10:00
io.h [POWERPC] Add "memory" clobber to MMIO accessors 2008-05-31 17:08:28 +10:00
ioctl.h
ioctls.h
iommu.h iommu sg: powerpc: convert iommu to use the IOMMU helper 2008-02-05 09:44:11 -08:00
ipcbuf.h
ipic.h [POWERPC] ipic: add new interrupts introduced by new chip 2007-12-11 13:57:18 -06:00
irq_regs.h
irq.h proper __do_softirq() prototype 2008-04-29 08:06:02 -07:00
irqflags.h [POWERPC] irqtrace support for 64-bit powerpc 2008-04-18 15:38:47 +10:00
Kbuild kbuild: fix a.out.h export to userspace with O= build. 2008-06-27 23:13:54 +02:00
kdebug.h
kdump.h [POWERPC] 85xx: Add support for relocatable kernel (and booting at non-zero) 2008-04-24 20:58:01 +10:00
kexec.h [POWERPC] kdump shutdown hook support 2008-01-25 22:52:50 +11:00
keylargo.h
kgdb.h
kmap_types.h
kprobes.h Kprobes: indicate kretprobe support in Kconfig 2008-03-04 16:35:11 -08:00
kvm_asm.h KVM: ppc: PowerPC 440 KVM implementation 2008-04-27 18:21:39 +03:00
kvm_host.h KVM: ppc: Handle guest idle by emulating MSR[WE] writes 2008-05-04 14:44:44 +03:00
kvm_para.h KVM: ppc: PowerPC 440 KVM implementation 2008-04-27 18:21:39 +03:00
kvm_ppc.h KVM: ppc: Remove duplicate function 2008-06-06 21:22:09 +03:00
kvm.h KVM: ppc: PowerPC 440 KVM implementation 2008-04-27 18:21:39 +03:00
libata-portmap.h
linkage.h
lmb.h [POWERPC] Use lowmem_end_addr to limit lmb allocations on ppc32 2008-04-17 07:46:13 +10:00
local.h
lppaca.h
lv1call.h
machdep.h [POWERPC] Remove unused machine call outs 2008-04-17 10:01:00 +10:00
macio.h [POWERPC] replace asm/of_device.h with linux/of_device.h in macio.h 2008-04-15 21:21:26 +10:00
mc146818rtc.h
mediabay.h [POWERPC] Build fix for drivers/macintosh/mediabay.c 2008-06-16 15:00:47 +10:00
mman.h
mmu_context.h
mmu-8xx.h [POWERPC] Move phys_addr_t definition into asm/types.h 2008-04-17 07:46:14 +10:00
mmu-40x.h [POWERPC] Move phys_addr_t definition into asm/types.h 2008-04-17 07:46:14 +10:00
mmu-44x.h ppc: Export tlb_44x_hwater for KVM 2008-04-27 18:21:37 +03:00
mmu-fsl-booke.h [POWERPC] Move phys_addr_t definition into asm/types.h 2008-04-17 07:46:14 +10:00
mmu-hash32.h [POWERPC] Move phys_addr_t definition into asm/types.h 2008-04-17 07:46:14 +10:00
mmu-hash64.h [POWERPC] vmemmap fixes to use smaller pages 2008-05-15 20:49:25 +10:00
mmu.h
mmzone.h
module.h
mpc8xx.h [POWERPC] 8xx: Get rid of conditional includes of board specific setup 2008-01-28 08:31:04 -06:00
mpc52xx_psc.h [POWERPC] mpc512x: Add MPC512x PSC support to MPC52xx psc driver 2008-02-06 14:05:40 -07:00
mpc52xx.h [POWERPC] Add common clock setting routine mpc52xx_psc_set_clkdiv() 2008-01-26 15:32:18 -07:00
mpc86xx.h
mpc512x.h [POWERPC] mpc512x: Basic platform support 2008-02-06 14:03:10 -07:00
mpc8260.h [POWERPC] 82xx: Embedded Planet EP8248E support 2008-01-23 19:34:43 -06:00
mpic.h [POWERPC] mpic: Fix use of uninitialized variable 2008-05-23 16:15:37 +10:00
msgbuf.h
mutex.h
namei.h
nvram.h include/asm-powerpc/nvram.h needs list.h 2008-02-05 09:44:08 -08:00
of_device.h
of_platform.h [POWERPC] Enable RTC for Ebony and Walnut (v2) 2008-01-25 07:07:26 -06:00
ohare.h
oprofile_impl.h [POWERPC] Made FSL Book-E PMC support more generic 2008-02-05 23:34:14 -06:00
paca.h [POWERPC] Raise the upper limit of NR_CPUS and move the pacas into the BSS 2008-04-24 20:58:04 +10:00
page_32.h [POWERPC] 85xx: Add support for relocatable kernel (and booting at non-zero) 2008-04-24 20:58:01 +10:00
page_64.h hugetlbfs: architecture header cleanup 2008-04-28 08:58:25 -07:00
page.h [POWERPC] 85xx: Add support for relocatable kernel (and booting at non-zero) 2008-04-24 20:58:01 +10:00
param.h
parport.h
pasemi_dma.h pasemi_mac: jumbo frame support 2008-03-05 16:34:39 -06:00
pci-bridge.h [POWERPC] Make pci_bus_to_host()'s struct pci_bus * argument const 2008-04-18 15:37:14 +10:00
pci.h [POWERPC] Merge PCI resource allocation & assignment 2007-12-20 16:18:09 +11:00
percpu.h percpu: fix DEBUG_PREEMPT per_cpu checking 2008-02-23 12:09:28 -08:00
pgalloc-32.h CONFIG_HIGHPTE vs. sub-page page tables. 2008-02-08 09:22:42 -08:00
pgalloc-64.h CONFIG_HIGHPTE vs. sub-page page tables. 2008-02-08 09:22:42 -08:00
pgalloc.h
pgtable-4k.h
pgtable-64k.h [POWERPC] Provide a way to protect 4k subpages when using 64k pages 2008-01-24 10:06:01 +11:00
pgtable-ppc32.h [POWERPC] 4xx: Fix problem with new TLB storage attibute fields on 440x6 core 2008-05-06 10:36:20 -05:00
pgtable-ppc64.h Correct hash flushing from huge_ptep_set_wrprotect() 2008-07-08 09:27:58 -07:00
pgtable.h
phyp_dump.h [POWERPC] pseries/phyp dump: Reserve a variable amount of space at boot 2008-04-17 07:46:14 +10:00
pmac_feature.h [POWERPC] Disable G5 NAP mode during SMU commands on U3 2008-02-08 19:52:35 +11:00
pmac_low_i2c.h
pmac_pfunc.h
pmc.h
pmi.h [POWERPC] remove include of asm/of_device.h from pmi.h 2008-04-15 21:21:25 +10:00
poll.h
posix_types.h asm-*/posix_types.h: scrub __GLIBC__ 2008-02-08 09:22:34 -08:00
ppc4xx.h [POWERPC] 4xx: Create common ppc4xx_reset_system() in ppc4xx_soc.c 2008-04-02 20:44:56 -05:00
ppc_asm.h
ppc-pci.h [POWERPC] iSeries: Call iSeries_pcibios_init from setup_arch 2007-12-11 13:42:32 +11:00
processor.h [POWERPC] Add IRQSTACKS support on ppc32 2008-04-29 15:57:34 +10:00
prom.h [POWERPC] Add of_translate_dma_address 2007-12-11 15:43:35 +11:00
ps3.h [POWERPC] PS3: Make ps3_virq_setup and ps3_virq_destroy static 2008-05-02 15:00:44 +10:00
ps3av.h ps3: use symbolic names for video modes 2008-02-06 10:41:17 -08:00
ps3fb.h
ps3stor.h
pSeries_reconfig.h
ptrace.h [POWERPC] Move stackframe definitions to common header 2008-04-18 15:37:18 +10:00
qe_ic.h
qe.h [POWERPC] QE: export qe_get_brg_clk() 2008-04-17 01:01:39 -05:00
reg_8xx.h
reg_booke.h [POWERPC] Made FSL Book-E PMC support more generic 2008-02-05 23:34:14 -06:00
reg_fsl_emb.h [POWERPC] Made FSL Book-E PMC support more generic 2008-02-05 23:34:14 -06:00
reg.h [POWERPC] move celleb DABRX definitions 2008-03-03 08:03:14 +01:00
resource.h
rheap.h
rio.h [RAPIDIO] Move include/asm-ppc/rio.h to asm-powerpc 2008-04-29 19:40:27 +10:00
rtas.h Revert "[POWERPC] Fix RTAS os-term usage on kernel panic" 2007-12-03 09:39:45 +11:00
rtc.h
rwsem.h [POWERPC] irqtrace support for 64-bit powerpc 2008-04-18 15:38:47 +10:00
scatterlist.h
seccomp.h
sections.h
semaphore.h Generic semaphore implementation 2008-04-17 10:42:34 -04:00
sembuf.h
serial.h
setjmp.h [POWERPC] Make setjmp/longjmp code usable outside of xmon 2008-01-25 22:52:50 +11:00
setup.h
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h
smp.h
smu.h [POWERPC] include/asm-powerpc/: Spelling fixes 2007-12-20 16:17:44 +11:00
socket.h [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
sockios.h
sparsemem.h [POWERPC] Add error return from htab_remove_mapping() 2008-04-01 20:43:08 +11:00
spinlock_types.h
spinlock.h [POWERPC] irqtrace support for 64-bit powerpc 2008-04-18 15:38:47 +10:00
spu_csa.h powerpc/spufs: remove class_0_dsisr from spu exception handling 2008-06-16 14:35:00 +10:00
spu_info.h
spu_priv1.h [POWERPC] cell: wrap master run control bit 2007-12-21 19:45:05 +11:00
spu.h powerpc/spufs: remove class_0_dsisr from spu exception handling 2008-06-16 14:35:00 +10:00
sstep.h
stat.h
statfs.h
string.h [POWERPC] Add hand-coded assembly strcmp 2008-04-07 10:03:03 +10:00
suspend.h
synch.h
syscalls.h unified (weak) sys_pipe implementation 2008-05-03 13:50:33 -07:00
systbl.h [POWERPC] Wire up new timerfd syscalls 2008-02-14 22:11:01 +11:00
system.h [POWERPC] Fix rmb to order cacheable vs. noncacheable 2008-06-16 15:00:20 +10:00
tce.h
termbits.h
termios.h
thread_info.h [POWERPC] Fix kernel stack allocation alignment 2008-04-24 20:57:33 +10:00
time.h [POWERPC] Fix hardware IRQ time accounting problem. 2007-12-06 16:08:59 +11:00
timex.h
tlb.h
tlbflush.h
topology.h asm-generic: add node_to_cpumask_ptr macro 2008-04-19 19:44:58 +02:00
tsi108_irq.h
tsi108_pci.h
tsi108.h
types.h powerpc: types: use <asm-generic/int-*.h> for the powerpc architecture 2008-05-02 16:18:35 -07:00
uaccess.h [POWERPC] Fix uninitialized variable bug in copy_{to|from}_user 2008-05-15 20:49:52 +10:00
ucc_fast.h
ucc_slow.h
ucc.h
ucontext.h
udbg.h [POWERPC] 4xx: Add early udbg support for 40x processors 2007-12-23 13:13:03 -06:00
uic.h
unaligned.h kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
uninorth.h
unistd.h [POWERPC] Wire up new timerfd syscalls 2008-02-14 22:11:01 +11:00
user.h Sanitize the type of struct user.u_ar0 2008-02-07 08:42:30 -08:00
vdso_datapage.h [POWERPC] vdso: Fixes for cache block sizes 2007-11-20 13:56:31 +11:00
vdso.h
vga.h
vio.h [POWERPC] iSeries: Fix section mismatch in viodsasd 2008-02-06 16:30:00 +11:00
xilinx_intc.h
xmon.h
xor.h