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linux/arch/powerpc/mm
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Hari Bathini 8597538712 powerpc/fadump: Do not use hugepages when fadump is active 
FADump capture kernel boots in restricted memory environment preserving
the context of previous kernel to save vmcore. Supporting hugepages in
such environment makes things unnecessarily complicated, as hugepages
need memory set aside for them. This means most of the capture kernel's
memory is used in supporting hugepages. In most cases, this results in
out-of-memory issues while booting FADump capture kernel. But hugepages
are not of much use in capture kernel whose only job is to save vmcore.
So, disabling hugepages support, when fadump is active, is a reliable
solution for the out of memory issues. Introducing a flag variable to
disable HugeTLB support when fadump is active.

Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Reviewed-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-05-03 23:09:25 +10:00
..
8xx_mmu.c powerpc/mm/slice: Fix hugepage allocation at hint address on 8xx 2018-03-06 09:21:23 +11:00
40x_mmu.c
44x_mmu.c
copro_fault.c powerpc/mm: Add support for handling > 512TB address in SLB miss 2018-03-31 00:10:38 +11:00
dma-noncoherent.c powerpc/mm: Rename map_page() to map_kernel_page() on 32-bit 2017-06-05 19:59:03 +10:00
drmem.c powerpc/mm/drmem: Fix unexpected flag value in ibm,dynamic-memory-v2 2018-02-23 16:45:51 +11:00
dump_hashpagetable.c powerpc/64s: Replace CONFIG_PPC_STD_MMU_64 with CONFIG_PPC_BOOK3S_64 2017-11-06 16:48:14 +11:00
dump_linuxpagetables.c powerpc/mm: Introduce _PAGE_NA 2018-01-16 23:47:14 +11:00
fault.c powerpc/mm/keys: Update documentation and remove unnecessary check 2018-04-04 15:23:09 +10:00
fsl_booke_mmu.c
hash64_4k.c powerpc/mm/hash64: Store the slot information at the right offset for hugetlb 2018-02-13 22:37:48 +11:00
hash64_64k.c powerpc/mm/hash64: Store the slot information at the right offset for hugetlb 2018-02-13 22:37:48 +11:00
hash_low_32.S powerpc: fix location of two EXPORT_SYMBOL 2017-09-01 16:42:45 +10:00
hash_native_64.c Merge branch 'fixes' into next 2018-03-28 22:59:50 +11:00
hash_utils_64.c powerpc/fadump: Do not use hugepages when fadump is active 2018-05-03 23:09:25 +10:00
highmem.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hugepage-hash64.c
hugetlbpage-book3e.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hugetlbpage-hash64.c powerpc/mm/hash64: Store the slot information at the right offset for hugetlb 2018-02-13 22:37:48 +11:00
hugetlbpage-radix.c powerpc updates for 4.15 2017-11-16 12:47:46 -08:00
hugetlbpage.c powerpc/fadump: Do not use hugepages when fadump is active 2018-05-03 23:09:25 +10:00
init_32.c powerpc/mm/32: Remove the reserved memory hack 2018-04-01 00:47:44 +11:00
init_64.c powerpc/mm/radix: Parse disable_radix commandline correctly. 2018-04-04 16:59:36 +10:00
init-common.c powerpc/mm: Fix crashes with 16G huge pages 2018-02-13 22:37:47 +11:00
Makefile powerpc: initial pkey plumbing 2018-01-20 21:45:03 +11:00
mem.c powerpc/mm: Flush cache on memory hot(un)plug 2018-04-24 09:46:56 +10:00
mmap.c exec: pass stack rlimit into mm layout functions 2018-04-11 10:28:37 -07:00
mmu_context_book3s64.c powerpc/mm: Add support for handling > 512TB address in SLB miss 2018-03-31 00:10:38 +11:00
mmu_context_hash32.c
mmu_context_iommu.c mm, migrate: remove reason argument from new_page_t 2018-04-11 10:28:32 -07:00
mmu_context_nohash.c powerpc/mm/slice: Simplify and optimise slice context initialisation 2018-03-13 23:43:05 +11:00
mmu_context.c powerpc, membarrier: Skip memory barrier in switch_mm() 2018-02-05 21:34:02 +01:00
mmu_decl.h powerpc/mm/32: Remove the reserved memory hack 2018-04-01 00:47:44 +11:00
numa.c Merge branch 'topic/paca' into next 2018-03-31 09:09:36 +11:00
pgtable_32.c powerpc/mm/32: Remove the reserved memory hack 2018-04-01 00:47:44 +11:00
pgtable_64.c powerpc/mm/hash64: Increase the VA range 2018-03-31 00:10:38 +11:00
pgtable-book3e.c
pgtable-book3s64.c Merge branch 'topic/paca' into next 2018-03-31 09:09:36 +11:00
pgtable-hash64.c powerpc/mm/hash64: Increase the VA range 2018-03-31 00:10:38 +11:00
pgtable-radix.c powerpc/mm/radix: Update pte fragment count from 16 to 256 on radix 2018-04-04 16:58:06 +10:00
pgtable.c powerpc/mm: extend _PAGE_PRIVILEGED to all CPUs 2018-01-16 23:47:13 +11:00
pkeys.c powerpc/mm/keys: Update documentation and remove unnecessary check 2018-04-04 15:23:09 +10:00
ppc_mmu_32.c
slb_low.S powerpc/mm: Add support for handling > 512TB address in SLB miss 2018-03-31 00:10:38 +11:00
slb.c powerpc/mm: Add support for handling > 512TB address in SLB miss 2018-03-31 00:10:38 +11:00
slice.c powerpc/8xx: Fix build with hugetlbfs enabled 2018-04-11 12:00:23 +10:00
subpage-prot.c powerpc/mm: Invalidate subpage_prot() system call on radix platforms 2018-01-21 01:12:21 +11:00
tlb_hash32.c
tlb_hash64.c powerpc/mm: Add support for handling > 512TB address in SLB miss 2018-03-31 00:10:38 +11:00
tlb_low_64e.S
tlb_nohash_low.S powerpc/8xx: Getting rid of remaining use of CONFIG_8xx 2017-08-10 23:32:12 +10:00
tlb_nohash.c powerpc/mm/nohash: do not flush the entire mm when range is a single page 2018-01-27 20:24:44 +11:00
tlb-radix.c powerpc/mm/radix: Fix checkstops caused by invalid tlbiel 2018-04-12 23:49:55 +10:00
vphn.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vphn.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00