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| author | Nick Piggin <npiggin@suse.de> | 2008-07-30 15:23:13 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-30 15:26:54 +1000 |
| commit | ce0ad7f0952581ba75ab6aee55bb1ed9bb22cf4f (patch) | |
| tree | bf2a8845a031cb685219db2ddcb3d296b4a9ffab /include/asm-powerpc | |
| parent | 7d2a175b9bf6e9422bebe95130a3c79a25ff4602 (diff) | |
| download | op-kernel-dev-ce0ad7f0952581ba75ab6aee55bb1ed9bb22cf4f.zip op-kernel-dev-ce0ad7f0952581ba75ab6aee55bb1ed9bb22cf4f.tar.gz | |
powerpc/mm: Lockless get_user_pages_fast() for 64-bit (v3)
Implement lockless get_user_pages_fast for 64-bit powerpc.
Page table existence is guaranteed with RCU, and speculative page references
are used to take a reference to the pages without having a prior existence
guarantee on them.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'include/asm-powerpc')
| -rw-r--r-- | include/asm-powerpc/pgtable-ppc64.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-powerpc/pgtable-ppc64.h b/include/asm-powerpc/pgtable-ppc64.h index 5fc78c0..74c6f38 100644 --- a/include/asm-powerpc/pgtable-ppc64.h +++ b/include/asm-powerpc/pgtable-ppc64.h @@ -461,6 +461,8 @@ void pgtable_cache_init(void); return pt; } +pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long address); + #endif /* __ASSEMBLY__ */ #endif /* _ASM_POWERPC_PGTABLE_PPC64_H_ */ |
