linux/arch/powerpc
Aneesh Kumar K.V 9ab3ac233a powerpc/mm/hash: Clear the invalid slot information correctly
We can get a hash pte fault with 4k base page size and find the pte
already inserted with 64K base page size. In that case we need to clear
the existing slot information from the old pte. Fix this correctly

With THP, we also clear the slot information with respect to all
the 64K hash pte mapping that 16MB page. They are all invalid
now. This make sure we don't find the slot valid when we fault with
4k base page size. Finding the slot valid should not result in any wrong
behavior because we do check again in hash page table for the validity.
But we can avoid that check completely.

Fixes: a43c0eb836 ("powerpc/mm: Convert 4k hash insert to C")
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-02-22 19:27:39 +11:00
..
boot powerpc updates for 4.5 2016-01-15 13:18:47 -08:00
configs powerpc/85xx: Enable TWR_P102x in mpc85xx_basic_defconfig 2015-12-22 18:23:21 -06:00
crypto powerpc: Create disable_kernel_{fp,altivec,vsx,spe}() 2015-12-01 13:52:25 +11:00
include powerpc/mm: Fix Multi hit ERAT cause by recent THP update 2016-02-15 21:10:04 +11:00
kernel powerpc/eeh: Fix partial hotplug criterion 2016-02-22 19:25:55 +11:00
kvm kvm: rename pfn_t to kvm_pfn_t 2016-01-15 17:56:32 -08:00
lib powerpc: Create disable_kernel_{fp,altivec,vsx,spe}() 2015-12-01 13:52:25 +11:00
math-emu powerpc: Correct emulated mtfsf instruction 2014-04-07 10:33:11 +10:00
mm powerpc/mm/hash: Clear the invalid slot information correctly 2016-02-22 19:27:39 +11:00
net net: filter: make JITs zero A for SKF_AD_ALU_XOR_X 2016-01-06 00:43:52 -05:00
oprofile powerpc: Remove mtmsrd(), use existing mtmsr() 2015-07-13 15:47:28 +10:00
perf powerpc/perf: Remove PPMU_HAS_SSLOT flag for Power8 2016-01-28 23:48:35 +11:00
platforms powerpc/ioda: Set "read" permission when "write" is set 2016-02-17 23:52:17 +11:00
sysdev mm, dax, pmem: introduce pfn_t 2016-01-15 17:56:32 -08:00
xmon powerpc/xmon: Use rtas_call_unlocked() in xmon 2015-12-17 22:40:55 +11:00
Kconfig powerpc/book3s_32: Fix build error with checkpoint restart 2016-01-31 15:08:06 +11:00
Kconfig.debug powerpc updates for 4.5 2016-01-15 13:18:47 -08:00
Makefile powerpc/cell: Drop CONFIG_TUNE_CELL in favour of CONFIG_CELL_CPU 2015-10-19 19:51:18 +11:00
relocs_check.sh powerpc: Convert relocs_check to a shell script using grep 2015-03-23 14:47:39 +11:00