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Commit 13c6a790 authored by Martin Schwidefsky's avatar Martin Schwidefsky
Browse files

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: default avatarGerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 758d39eb

arch/s390/include/asm/pgtable.h

+5 −5
Original line number Diff line number Diff line
@@ -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