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btrfs-progs: Fix disable backtrace assert error 

Due to commit 00e769d04c2c83029d6c71(btrfs-progs: Correct value printed
by assertions/BUG_ON/WARN_ON), which changed the assert_trace()
parameter, the condition passed to assert/WARN_ON/BUG_ON are logical
notted for backtrace enabled and disabled case.

Such behavior makes us easier to pass value wrong, and in fact it did
cause us to pass wrong condition for ASSERT().

Instead of passing different conditions for ASSERT/WARN_ON/BUG_ON()
manually, this patch will use ASSERT() to implement the resting
ASSERT/WARN_ON/BUG() for disable backtrace case, and use assert_trace()
to implement ASSERT() and BUG_ON(), to allow them to print correct
value.

Also, move WARN_ON() out of the ifdef branch, as it's completely the
same for both branches.

Cc: Goldwyn Rodrigues <rgoldwyn@suse.de>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
master
Qu Wenruo 2017-01-19 12:00:03 +08:00 committed by David Sterba
parent 795cfb9b17
commit 5826f1e9ff
1 changed files with 6 additions and 8 deletions
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14
kerncompat.h
View File

@ -291,18 +291,16 @@ static inline void assert_trace(const char *assertion, const char *filename,
abort();
exit(1);
}
#define BUG_ON(c) assert_trace(#c, __FILE__, __func__, __LINE__, (long)(c))
#define WARN_ON(c) warning_trace(#c, __FILE__, __func__, __LINE__, (long)(c))
#define ASSERT(c) assert_trace(#c, __FILE__, __func__, __LINE__, (long)!(c))
#define BUG() assert_trace(NULL, __FILE__, __func__, __LINE__, 1)
#define BUG_ON(c) assert_trace(#c, __FILE__, __func__, __LINE__, (long)(c))
#else
#define BUG_ON(c) assert(!(c))
#define WARN_ON(c) warning_trace(#c, __FILE__, __func__, __LINE__, (long)(c))
#define ASSERT(c) assert(!(c))
#define BUG() assert(0)
#define ASSERT(c) assert(c)
#define BUG_ON(c) ASSERT(!(c))
#endif
#define BUG() BUG_ON(1)
#define WARN_ON(c) warning_trace(#c, __FILE__, __func__, __LINE__, (long)(c))
#define container_of(ptr, type, member) ({ \
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
(type *)( (char *)__mptr - offsetof(type,member) );})