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| author |   Reza Arbab <arbab@linux.vnet.ibm.com> | 2017-01-03 14:39:51 -0600 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2017-01-17 10:05:43 +1100 |
| commit | 32b53c012e0bfe20b2745962a89db0dc72ef3270 (patch) | |
| tree | 4f6d713c1b48f508bdfe0bd802204aba11a40ec5 /arch/powerpc/include/asm/book3s/64/hash.h | |
| parent | Linux 4.10-rc4 (diff) | |
| download | linux-dev-32b53c012e0bfe20b2745962a89db0dc72ef3270.tar.xz linux-dev-32b53c012e0bfe20b2745962a89db0dc72ef3270.zip | |
powerpc/mm: Fix memory hotplug BUG() on radix
Memory hotplug is leading to hash page table calls, even on radix:
arch_add_memory
create_section_mapping
htab_bolt_mapping
BUG_ON(!ppc_md.hpte_insert);
To fix, refactor {create,remove}_section_mapping() into hash__ and
radix__ variants. Leave the radix versions stubbed for now.
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/book3s/64/hash.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/hash.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/hash.h b/arch/powerpc/include/asm/book3s/64/hash.h index f61cad3de4e6..4c935f7504f7 100644 --- a/arch/powerpc/include/asm/book3s/64/hash.h +++ b/arch/powerpc/include/asm/book3s/64/hash.h @@ -201,6 +201,10 @@ extern int __meminit hash__vmemmap_create_mapping(unsigned long start, unsigned long phys); extern void hash__vmemmap_remove_mapping(unsigned long start, unsigned long page_size); + +int hash__create_section_mapping(unsigned long start, unsigned long end); +int hash__remove_section_mapping(unsigned long start, unsigned long end); + #endif /* !__ASSEMBLY__ */ #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_BOOK3S_64_HASH_H */ |