Aneesh Kumar K.V d19469e841 power/mm: update pte_write and pte_wrprotect to handle savedwrite ... We use pte_write() to check whethwer the pte entry is writable. This is mostly used to later mark the pte read only if it is writable. The other use of pte_write() is to check whether the pte_entry is writable so that hardware page table entry can be marked accordingly. This is used in kvm where we look at qemu page table entry and update hardware hash page table for the guest with correct write enable bit. With the above, for the first usage we should also check the savedwrite bit so that we can correctly clear the savedwite bit. For the later, we add a new variant __pte_write(). With this we can revert write_protect_page part of 595cd8f256 ("mm/ksm: handle protnone saved writes when making page write protect"). But I left it as it is as an example code for savedwrite check. Fixes: c137a2757b ("powerpc/mm/autonuma: switch ppc64 to its own implementation of saved write") Link: http://lkml.kernel.org/r/1488203787-17849-2-git-send-email-aneesh.kumar@linux.vnet.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Rik van Riel <riel@surriel.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2017-03-09 17:01:09 -08:00
..
book3s	power/mm: update pte_write and pte_wrprotect to handle savedwrite	2017-03-09 17:01:09 -08:00
nohash	powerpc/booke: Fix boot crash due to null hugepd	2017-03-03 11:24:50 +11:00
8xx_immap.h	…
Kbuild	…
accounting.h	sched/cputime, powerpc: Prepare accounting structure for cputime flush on tick	2017-01-14 09:54:12 +01:00
agp.h	…
archrandom.h	…
asm-compat.h	…
asm-offsets.h	…
asm-prototypes.h	powerpc: Add a prototype for mcount() so it can be versioned	2017-02-10 13:28:06 +11:00
async_tx.h	…
atomic.h	…
backlight.h	…
barrier.h	…
bitops.h	powerpc/64: Implement clear_bit_unlock_is_negative_byte()	2017-02-18 14:40:01 +11:00
bootx.h	…
btext.h	…
bug.h	…
bugs.h	…
cache.h	powerpc: Add new cache geometry aux vectors	2017-02-06 19:46:04 +11:00
cacheflush.h	…
cell-pmu.h	…
cell-regs.h	…
checksum.h	powerpc/64: Fix checksum folding in csum_add()	2017-03-04 23:07:17 +11:00
cmpxchg.h	…
code-patching.h	powerpc/kprobes: Implement Optprobes	2017-02-10 13:28:04 +11:00
compat.h	…
context_tracking.h	…
copro.h	…
cpm.h	…
cpm1.h	…
cpm2.h	…
cpu_has_feature.h	powerpc: Fix build failure with clang due to BUILD_BUG_ON()	2017-01-25 13:36:10 +11:00
cpufeature.h	…
cpuidle.h	powerpc/powernv: Fix bug due to labeling ambiguity in power_enter_stop	2017-03-03 11:24:50 +11:00
cputable.h	…
cputhreads.h	…
cputime.h	sched/cputime: Remove generic asm headers	2017-02-01 09:14:07 +01:00
current.h	…
dbdma.h	…
dbell.h	…
dcr-generic.h	…
dcr-mmio.h	…
dcr-native.h	…
dcr-regs.h	…
dcr.h	…
debug.h	…
delay.h	…
device.h	treewide: Move dma_ops from struct dev_archdata into struct device	2017-01-24 12:23:35 -05:00
disassemble.h	…
dma-mapping.h	treewide: Consolidate get_dma_ops() implementations	2017-01-24 12:23:35 -05:00
dma.h	…
edac.h	…
eeh.h	…
eeh_event.h	…
ehv_pic.h	…
elf.h	powerpc/64: Fix L1D cache shape vector reporting L1I values	2017-03-06 21:51:32 +11:00
emergency-restart.h	…
emulated_ops.h	…
epapr_hcalls.h	…
exception-64e.h	…
exception-64s.h	powerpc/64: CONFIG_RELOCATABLE support for hmi interrupts	2017-02-07 16:39:44 +11:00
exec.h	…
fadump.h	…
fb.h	…
feature-fixups.h	…
firmware.h	powerpc/pseries: Add hypercall wrappers for hash page table resizing	2017-02-09 21:45:48 +11:00
fixmap.h	…
floppy.h	…
fs_pd.h	…
fsl_85xx_cache_sram.h	…
fsl_gtm.h	…
fsl_hcalls.h	scripts/spelling.txt: add "partiton" pattern and fix typo instances	2017-02-27 18:43:46 -08:00
fsl_lbc.h	…
fsl_pamu_stash.h	…
fsl_pm.h	…
ftrace.h	…
futex.h	…
grackle.h	…
hardirq.h	…
head-64.h	Merge branch 'topic/ppc-kvm' into next	2017-02-14 17:18:29 +11:00
heathrow.h	…
highmem.h	…
hmi.h	…
hugetlb.h	powerpc/mm: Fix little-endian 4K hugetlb	2017-01-18 11:58:50 +11:00
hvcall.h	Merge branch 'topic/ppc-kvm' into next	2017-02-14 17:18:29 +11:00
hvconsole.h	…
hvcserver.h	…
hvsi.h	…
hw_breakpoint.h	…
hw_irq.h	…
hydra.h	…
i8259.h	…
ibmebus.h	…
icswx.h	…
ide.h	…
ima.h	powerpc: ima: send the kexec buffer to the next kernel	2016-12-20 09:48:44 -08:00
immap_cpm2.h	…
io-defs.h	…
io-workarounds.h	…
io.h	…
io_event_irq.h	…
iommu.h	…
ipic.h	…
irq.h	…
irq_work.h	…
irqflags.h	…
isa-bridge.h	powerpc: Add support for non-PCI ISA bridges	2017-01-31 13:54:17 +11:00
jump_label.h	…
kdebug.h	…
kdump.h	…
kexec.h	powerpc: ima: send the kexec buffer to the next kernel	2016-12-20 09:48:44 -08:00
keylargo.h	…
kgdb.h	…
kmap_types.h	…
kprobes.h	kprobes: move kprobe declarations to asm-generic/kprobes.h	2017-02-27 18:43:45 -08:00
kvm_asm.h	…
kvm_book3s.h	KVM: PPC: Book3S HV: Enable radix guest support	2017-01-31 19:11:52 +11:00
kvm_book3s_32.h	…
kvm_book3s_64.h	KVM: PPC: Book3S HV: Split HPT allocation from activation	2017-01-31 21:59:39 +11:00
kvm_book3s_asm.h	…
kvm_booke.h	…
kvm_booke_hv_asm.h	…
kvm_fpu.h	…
kvm_host.h	KVM: PPC: Book3S HV: Outline of KVM-HV HPT resizing implementation	2017-01-31 21:59:56 +11:00
kvm_para.h	…
kvm_ppc.h	KVM: PPC: Book3S HV: Outline of KVM-HV HPT resizing implementation	2017-01-31 21:59:56 +11:00
libata-portmap.h	…
linkage.h	…
livepatch.h	powerpc/livepatch: Remove klp_write_module_reloc() stub	2016-12-19 11:15:25 +01:00
local.h	…
lppaca.h	…
lv1call.h	…
machdep.h	…
macio.h	…
mc146818rtc.h	…
mce.h	…
mediabay.h	…
mm-arch-hooks.h	…
mman.h	…
mmu-8xx.h	…
mmu-40x.h	…
mmu-44x.h	…
mmu-book3e.h	…
mmu.h	powerpc updates for 4.11 part 1.	2017-02-22 10:30:38 -08:00
mmu_context.h	…
mmzone.h	…
module.h	modversions: treat symbol CRCs as 32 bit quantities	2017-02-03 08:28:25 -08:00
mpc5xxx.h	…
mpc6xx.h	…
mpc52xx.h	…
mpc52xx_psc.h	…
mpc85xx.h	…
mpc5121.h	…
mpc8260.h	…
mpic.h	…
mpic_msgr.h	…
mpic_timer.h	…
msi_bitmap.h	…
nmi.h	…
nvram.h	…
ohare.h	…
opal-api.h	powerpc/powernv: Initialise nest mmu	2017-01-30 20:24:33 +11:00
opal.h	Merge branch 'topic/ppc-kvm' into next	2017-02-14 17:18:29 +11:00
oprofile_impl.h	…
paca.h	sched/cputime, powerpc: Migrate stolen_time field to the accounting structure	2017-01-14 09:54:12 +01:00
page.h	powerpc: do not make the entire heap executable	2017-02-22 16:41:29 -08:00
page_32.h	…
page_64.h	powerpc/64: Clean up ppc64_caches using a struct per cache	2017-02-06 19:46:04 +11:00
parport.h	…
pasemi_dma.h	…
pci-bridge.h	powerpc: Move isa bridge definitions to separate include	2017-01-31 13:54:17 +11:00
pci.h	treewide: Constify most dma_map_ops structures	2017-01-24 12:23:35 -05:00
percpu.h	…
perf_event.h	…
perf_event_fsl_emb.h	…
perf_event_server.h	powerpc/perf: Use MSR to report privilege level on P9 DD1	2017-01-18 16:15:58 +11:00
pgalloc.h	…
pgtable-be-types.h	powerpc/mm: Fix little-endian 4K hugetlb	2017-01-18 11:58:50 +11:00
pgtable-types.h	powerpc/mm: Fix little-endian 4K hugetlb	2017-01-18 11:58:50 +11:00
pgtable.h	…
plpar_wrappers.h	powerpc/pseries: Add hypercall wrappers for hash page table resizing	2017-02-09 21:45:48 +11:00
pmac_feature.h	…
pmac_low_i2c.h	…
pmac_pfunc.h	…
pmc.h	…
pmi.h	…
pnv-pci.h	drivers/pci/hotplug: Mask PDC interrupt if required	2017-02-15 20:02:43 +11:00
powernv.h	powerpc/powernv: Initialise nest mmu	2017-01-30 20:24:33 +11:00
ppc-opcode.h	powerpc: emulate_step() tests for load/store instructions	2017-03-03 11:24:50 +11:00
ppc-pci.h	…
ppc4xx.h	…
ppc4xx_ocm.h	…
ppc_asm.h	powerpc/32: Remove FIX_SRR1	2017-01-26 17:49:32 -06:00
probes.h	…
processor.h	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next	2017-02-18 21:37:14 +11:00
prom.h	powerpc: Update to new option-vector-5 format for CAS	2017-03-06 21:44:09 +11:00
ps3.h	treewide: Consolidate get_dma_ops() implementations	2017-01-24 12:23:35 -05:00
ps3av.h	…
ps3gpu.h	…
ps3stor.h	…
pte-common.h	…
ptrace.h	…
reg.h	powerpc updates for 4.11 part 2	2017-03-01 10:10:16 -08:00
reg_8xx.h	powerpc/8xx: Perf events on PPC 8xx	2017-01-26 17:49:34 -06:00
reg_a2.h	…
reg_booke.h	…
reg_fsl_emb.h	…
rheap.h	…
rio.h	…
rtas.h	powerpc/pseries: Implement indexed-count hotplug memory add	2017-02-17 17:57:30 +11:00
runlatch.h	…
scom.h	…
seccomp.h	…
sections.h	…
serial.h	…
setjmp.h	…
setup.h	…
sfp-machine.h	…
shmparam.h	…
signal.h	…
smp.h	…
smu.h	…
sparsemem.h	powerpc/mm: Fix build break with BOOK3S_64=n and MEMORY_HOTPLUG=y	2017-02-15 19:58:39 +11:00
spinlock.h	…
spinlock_types.h	…
spu.h	…
spu_csa.h	…
spu_info.h	…
spu_priv1.h	…
sstep.h	…
string.h	…
swab.h	…
swiotlb.h	treewide: Constify most dma_map_ops structures	2017-01-24 12:23:35 -05:00
switch_to.h	…
synch.h	…
syscall.h	…
syscalls.h	…
systbl.h	…
tce.h	…
termios.h	…
thread_info.h	…
time.h	…
timex.h	…
tlb.h	mm: add tlb_remove_check_page_size_change to track page size change	2016-12-12 18:55:07 -08:00
tlbflush.h	…
tm.h	…
topology.h	…
trace.h	…
trace_clock.h	…
tsi108.h	…
tsi108_irq.h	…
tsi108_pci.h	…
types.h	…
uaccess.h	powerpc/sparse: Constify the address pointer in __get_user_nosleep()	2017-02-02 16:35:21 +11:00
udbg.h	…
uic.h	…
unaligned.h	…
uninorth.h	…
unistd.h	…
uprobes.h	…
user.h	…
vdso.h	…
vdso_datapage.h	…
vga.h	…
vio.h	…
word-at-a-time.h	…
xics.h	powerpc/powernv: Fix CPU hotplug to handle waking on HVI	2017-02-09 15:19:57 +11:00
xilinx_intc.h	…
xilinx_pci.h	…
xmon.h	…
xor.h	…