From: Christian Borntraeger <[email protected]>
[patch 8/14] s390: test_bit return value.
The test_bit function returns a non-boolean value, it returns 0,1,2,4,...
instead of only 0 or 1. This causes wrongs results in the mincore
system call. Check against 0 to get a proper boolean value.
Signed-off-by: Christian Borntraeger <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
---
include/asm-s390/bitops.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff -urpN linux-2.6/include/asm-s390/bitops.h linux-2.6-patched/include/asm-s390/bitops.h
--- linux-2.6/include/asm-s390/bitops.h 2005-10-28 02:02:08.000000000 +0200
+++ linux-2.6-patched/include/asm-s390/bitops.h 2005-10-28 14:04:50.000000000 +0200
@@ -518,8 +518,8 @@ static inline int __test_bit(unsigned lo
static inline int
__constant_test_bit(unsigned long nr, const volatile unsigned long *addr) {
- return (((volatile char *) addr)
- [(nr^(__BITOPS_WORDSIZE-8))>>3] & (1<<(nr&7)));
+ return ((((volatile char *) addr)
+ [(nr^(__BITOPS_WORDSIZE-8))>>3] & (1<<(nr&7)))) != 0;
}
#define test_bit(nr,addr) \
-
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