Aneesh Kumar K.V 56eecdb912 mm: Use ptep/pmdp_set_numa() for updating _PAGE_NUMA bit ... Archs like ppc64 doesn't do tlb flush in set_pte/pmd functions when using a hash table MMU for various reasons (the flush is handled as part of the PTE modification when necessary). ppc64 thus doesn't implement flush_tlb_range for hash based MMUs. Additionally ppc64 require the tlb flushing to be batched within ptl locks. The reason to do that is to ensure that the hash page table is in sync with linux page table. We track the hpte index in linux pte and if we clear them without flushing hash and drop the ptl lock, we can have another cpu update the pte and can end up with duplicate entry in the hash table, which is fatal. We also want to keep set_pte_at simpler by not requiring them to do hash flush for performance reason. We do that by assuming that set_pte_at() is never *ever* called on a PTE that is already valid. This was the case until the NUMA code went in which broke that assumption. Fix that by introducing a new pair of helpers to set _PAGE_NUMA in a way similar to ptep/pmdp_set_wrprotect(), with a generic implementation using set_pte_at() and a powerpc specific one using the appropriate mechanism needed to keep the hash table in sync. Acked-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>		2014-02-17 11:19:36 +11:00
..
bitops	bitops/find: clarify and extend documentation	2013-11-13 12:09:22 +09:00
4level-fixup.h	…
Kbuild.asm	UAPI: Set up uapi/asm/Kbuild.asm	2012-10-02 18:01:56 +01:00
atomic-long.h	…
atomic.h	asm-generic: move cmpxchg*_local defs to cmpxchg.h	2013-03-13 06:11:05 +01:00
atomic64.h	…
audit_change_attr.h	audit: Modify a set of system calls in audit class definitions	2014-01-17 17:01:46 -05:00
audit_dir_write.h	audit: support the "standard" <asm-generic/unistd.h>	2011-05-04 14:41:28 -04:00
audit_read.h	audit: support the "standard" <asm-generic/unistd.h>	2011-05-04 14:41:28 -04:00
audit_signal.h	…
audit_write.h	audit: Modify a set of system calls in audit class definitions	2014-01-17 17:01:46 -05:00
barrier.h	arch: Introduce smp_load_acquire(), smp_store_release()	2014-01-12 10:37:17 +01:00
bitops.h	…
bitsperlong.h	UAPI: (Scripted) Disintegrate include/asm-generic	2012-10-04 18:20:15 +01:00
bug.h	bug.h: Fix up CONFIG_BUG=n implicit function declarations.	2012-06-25 10:32:49 -07:00
bugs.h	…
cache.h	…
cacheflush.h	asm-generic/cacheflush.h: flush icache when copying to user pages	2011-05-25 08:39:37 -07:00
checksum.h	asm-generic headers: Allow yet more arch overrides in checksum.h	2013-02-11 20:00:33 +05:30
clkdev.h	asm-generic: Add default clkdev.h	2012-10-03 21:33:53 +02:00
cmpxchg-local.h	generic: Use raw local irq variant for generic cmpxchg	2013-02-19 08:43:37 +01:00
cmpxchg.h	asm-generic: move cmpxchg*_local defs to cmpxchg.h	2013-03-13 06:11:05 +01:00
cputime.h	cputime: Generic on-demand virtual cputime accounting	2013-01-27 19:23:27 +01:00
cputime_jiffies.h	cputime: Move default nsecs_to_cputime() to jiffies based cputime file	2013-01-27 19:23:25 +01:00
cputime_nsecs.h	cputime_nsecs: use math64.h for nsec resolution conversion helpers	2013-04-26 18:58:12 +02:00
current.h	…
delay.h	asm-generic: delay.h fix udelay and ndelay for 8 bit args	2011-07-22 18:45:33 +02:00
device.h	…
div64.h	…
dma-coherent.h	common: dma-mapping: add support for generic dma_mmap_* calls	2012-07-30 12:25:46 +02:00
dma-mapping-broken.h	asm-generic/dma-mapping-broken.h: Provide dma_alloc_attrs()/dma_free_attrs()	2012-12-25 20:14:54 +01:00
dma-mapping-common.h	common: dma-mapping: introduce dma_get_sgtable() function	2012-07-30 12:25:46 +02:00
dma.h	…
emergency-restart.h	…
exec.h	Split arch_align_stack() out from asm-generic/system.h	2012-03-28 18:30:03 +01:00
fb.h	…
fixmap.h	add generic fixmap.h	2014-01-23 16:36:54 -08:00
ftrace.h	…
futex.h	…
getorder.h	bitops: Add missing parentheses to new get_order macro	2012-02-24 10:39:27 -08:00
gpio.h	GPIO bulk changes for the v3.13 development cycle	2013-11-12 15:50:46 +09:00
hardirq.h	…
hash.h	lib: hash: follow-up fixups for arch hash	2013-12-19 00:14:53 -05:00
hugetlb.h	mm: Fix generic hugetlb pte check return type.	2013-10-02 20:02:35 -04:00
hw_irq.h	…
ide_iops.h	…
int-ll64.h	UAPI: (Scripted) Disintegrate include/asm-generic	2012-10-04 18:20:15 +01:00
io-64-nonatomic-hi-lo.h	asm-generic: architecture independent readq/writeq for 32bit environment	2012-02-21 16:47:28 -08:00
io-64-nonatomic-lo-hi.h	asm-generic: architecture independent readq/writeq for 32bit environment	2012-02-21 16:47:28 -08:00
io.h	kernel: Fix s390 absolute memory access for /dev/mem	2013-05-22 09:45:57 +02:00
ioctl.h	UAPI: (Scripted) Disintegrate include/asm-generic	2012-10-04 18:20:15 +01:00
iomap.h	[PARISC] fix compile break caused by iomap: make IOPORT/PCI mapping functions conditional	2012-02-27 09:43:30 -06:00
irq.h	…
irq_regs.h	…
irqflags.h	…
kdebug.h	…
kmap_types.h	asm-generic: remove km_type definitions	2012-07-24 15:27:30 +08:00
kvm_para.h	KVM: add kvm_para_available to asm-generic/kvm_para.h	2013-06-05 13:21:29 +03:00
libata-portmap.h	…
linkage.h	…
local.h	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
local64.h	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
memory_model.h	__page_to_pfn: Fix typo in comment	2013-10-14 15:28:29 +02:00
mm_hooks.h	…
mmu.h	asm-generic/mmu.h: Add support for FDPIC	2012-12-09 23:14:14 +01:00
mmu_context.h	…
module.h	Make most arch asm/module.h files use asm-generic/module.h	2012-09-28 14:31:03 +09:30
mutex-dec.h	arch: Make __mutex_fastpath_lock_retval return whether fastpath succeeded or not	2013-06-26 12:10:55 +02:00
mutex-null.h	arch: Make __mutex_fastpath_lock_retval return whether fastpath succeeded or not	2013-06-26 12:10:55 +02:00
mutex-xchg.h	arch: Make __mutex_fastpath_lock_retval return whether fastpath succeeded or not	2013-06-26 12:10:55 +02:00
mutex.h	…
page.h	The following changes since commit 3ee72ca992	2012-01-10 17:39:40 -08:00
param.h	UAPI: (Scripted) Disintegrate include/asm-generic	2012-10-04 18:20:15 +01:00
parport.h	include: remove __dev* attributes.	2013-01-03 15:57:16 -08:00
pci-bridge.h	PCI: work around Stratus ftServer broken PCIe hierarchy	2012-04-30 15:21:02 -06:00
pci-dma-compat.h	…
pci.h	PCI: collapse pcibios_resource_to_bus	2012-02-23 20:19:04 -07:00
pci_iomap.h	[PARISC] fix compile break caused by iomap: make IOPORT/PCI mapping functions conditional	2012-02-27 09:43:30 -06:00
percpu.h	…
pgalloc.h	…
pgtable-nopmd.h	…
pgtable-nopud.h	…
pgtable.h	mm: Use ptep/pmdp_set_numa() for updating _PAGE_NUMA bit	2014-02-17 11:19:36 +11:00
preempt.h	sched: Remove PREEMPT_NEED_RESCHED from generic code	2013-12-11 15:52:32 +01:00
ptrace.h	asm-generic/ptrace.h: start a common low level ptrace helper	2011-05-26 17:12:36 -07:00
resource.h	UAPI: (Scripted) Disintegrate include/asm-generic	2012-10-04 18:20:15 +01:00
rtc.h	…
rwsem.h	Hexagon: Add locking types and functions	2011-11-01 07:34:20 -07:00
scatterlist.h	…
sections.h	vmlinux.lds: add comments for global variables and clean up useless declarations	2013-07-03 16:07:34 -07:00
segment.h	…
serial.h	…
siginfo.h	constify copy_siginfo_to_user{,32}()	2013-11-09 00:16:29 -05:00
signal.h	unify default ptrace_signal_deliver	2012-11-29 00:01:23 -05:00
simd.h	crypto: create generic version of ablk_helper	2013-09-24 06:02:24 +10:00
sizes.h	ARM: 7430/1: sizes.h: move from asm-generic to <linux/sizes.h>	2012-06-28 17:14:34 +01:00
spinlock.h	…
statfs.h	UAPI: (Scripted) Disintegrate include/asm-generic	2012-10-04 18:20:15 +01:00
string.h	…
switch_to.h	Split the switch_to() wrapper out of asm-generic/system.h	2012-03-28 18:30:03 +01:00
syscall.h	asm/syscall.h: add syscall_get_arch	2012-04-14 11:13:19 +10:00
syscalls.h	burying unused conditionals	2013-02-14 09:21:15 -05:00
termios-base.h	…
termios.h	UAPI: (Scripted) Disintegrate include/asm-generic	2012-10-04 18:20:15 +01:00
timex.h	…
tlb.h	Fix TLB gather virtual address range invalidation corner cases	2013-08-16 08:52:46 -07:00
tlbflush.h	BUG: headers with BUG/BUG_ON etc. need linux/bug.h	2012-03-04 17:54:34 -05:00
topology.h	…
trace_clock.h	tracing,x86: Add a TSC trace_clock	2012-11-13 15:48:27 -05:00
uaccess-unaligned.h	…
uaccess.h	asm-generic: uaccess: Spelling s/a ny/any/	2014-01-02 10:45:23 +01:00
unaligned.h	…
unistd.h	We get rid of the general module prefix confusion with a binary config option,	2013-05-05 10:58:06 -07:00
user.h	…
vga.h	…
vmlinux.lds.h	kernel: add support for init_array constructors	2013-10-17 15:05:17 +10:30
vtime.h	include/asm-generic/vtime.h: avoid zero-length file	2013-09-30 14:31:02 -07:00
word-at-a-time.h	word-at-a-time: provide generic big-endian zero_bytemask implementation	2013-12-12 10:39:01 -08:00
xor.h	asm-generic: xor: mark static functions as __maybe_unused	2012-10-03 21:21:06 +02:00