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| author |   Paul Mackerras <paulus@samba.org> | 2016-02-22 13:41:12 +1100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2016-02-27 21:06:57 +1100 |
| commit | 1ec3f937102154b54c3ba97b79d4bd3931bb0eaa (patch) | |
| tree | fe1d48d2cac53135d9ffc8fd77f8c073ac7c070a /arch/powerpc/mm/hash_utils_64.c | |
| parent | Merge tag 'powerpc-4.5-4' into next (diff) | |
| download | linux-dev-1ec3f937102154b54c3ba97b79d4bd3931bb0eaa.tar.xz linux-dev-1ec3f937102154b54c3ba97b79d4bd3931bb0eaa.zip | |
powerpc/mm/book3s-64: Clean up some obsolete or misleading comments
No code changes.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/mm/hash_utils_64.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index ba59d5977f34..47a0bc12cb65 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -168,11 +168,11 @@ unsigned long htab_convert_pte_flags(unsigned long pteflags) rflags |= HPTE_R_N; /* * PP bits: - * Linux use slb key 0 for kernel and 1 for user. - * kernel areas are mapped by PP bits 00 - * and and there is no kernel RO (_PAGE_KERNEL_RO). - * User area mapped by 0x2 and read only use by - * 0x3. + * Linux uses slb key 0 for kernel and 1 for user. + * kernel areas are mapped with PP=00 + * and there is no kernel RO (_PAGE_KERNEL_RO). + * User area is mapped with PP=0x2 for read/write + * or PP=0x3 for read-only (including writeable but clean pages). */ if (pteflags & _PAGE_USER) { rflags |= 0x2; |