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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-02-10 16:47:14 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-02-23 08:56:20 +0100 |
| commit | 13c6a790d77c3fe81e1a25524d1f9115b0da9404 (patch) | |
| tree | b2358ac01748916844782f936e57f6f85399a470 /arch/s390 | |
| parent | 758d39ebd3d5666edb3b1c339f7f138c349ff8bf (diff) | |
| download | linux-0-day-13c6a790d77c3fe81e1a25524d1f9115b0da9404.tar.gz linux-0-day-13c6a790d77c3fe81e1a25524d1f9115b0da9404.tar.xz | |
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 <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/pgtable.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 21e95cdcf8f62..7be9ae808a8b5 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 |