From 13c6a790d77c3fe81e1a25524d1f9115b0da9404 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 10 Feb 2016 16:47:14 +0100 Subject: [PATCH] s390/mm: correct comment about segment table entries The comment describing the bit encoding for segment table entries is incorrect in regard to the read and write bits. The segment read bit is 0x0002 and write is 0x0001, not the other way around. Reported-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/pgtable.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 21e95cdcf8f6..7be9ae808a8b 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -298,15 +298,15 @@ static inline int is_module_addr(void *addr) /* * Segment table entry encoding (R = read-only, I = invalid, y = young bit): - * dy..R...I...wr + * dy..R...I...rw * prot-none, clean, old 00..1...1...00 * prot-none, clean, young 01..1...1...00 * prot-none, dirty, old 10..1...1...00 * prot-none, dirty, young 11..1...1...00 - * read-only, clean, old 00..1...1...01 - * read-only, clean, young 01..1...0...01 - * read-only, dirty, old 10..1...1...01 - * read-only, dirty, young 11..1...0...01 + * read-only, clean, old 00..1...1...10 + * read-only, clean, young 01..1...0...10 + * read-only, dirty, old 10..1...1...10 + * read-only, dirty, young 11..1...0...10 * read-write, clean, old 00..1...1...11 * read-write, clean, young 01..1...0...11 * read-write, dirty, old 10..0...1...11 -- 2.20.1