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Diffstat (limited to 'arch/powerpc/mm/hash_utils_64.c')
-rw-r--r--arch/powerpc/mm/hash_utils_64.c10
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;