diff options
| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2016-02-15 12:55:03 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2016-02-16 13:44:26 +1100 |
| commit | e9ab1a1cafb7911df1550a285f2f733ea5920f55 (patch) | |
| tree | 0a63e35cd571c6083440e4e8c3fb02bf23c27a6e /arch/powerpc/include/asm/pgtable.h | |
| parent | 178a787502123b01499c5a4617b94bb69ad49dd5 (diff) | |
powerpc: Make vmalloc_to_phys() public
This makes vmalloc_to_phys() public as there will be another user
(KVM in-kernel VFIO acceleration) for it soon. As this new user
can be compiled as a module, this exports the symbol.
As a little optimization, this changes the helper to call
vmalloc_to_pfn() instead of vmalloc_to_page() as the size of the
struct page may not be power-of-two aligned which will make gcc use
multiply instructions instead of shifts.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/include/asm/pgtable.h')
| -rw-r--r-- | arch/powerpc/include/asm/pgtable.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h index ac9fb114e25d..47897a30982d 100644 --- a/arch/powerpc/include/asm/pgtable.h +++ b/arch/powerpc/include/asm/pgtable.h @@ -78,6 +78,9 @@ static inline pte_t *find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea, } return __find_linux_pte_or_hugepte(pgdir, ea, is_thp, shift); } + +unsigned long vmalloc_to_phys(void *vmalloc_addr); + #endif /* __ASSEMBLY__ */ #endif /* _ASM_POWERPC_PGTABLE_H */ |