size = backtrace(array, MAX_BACKTRACE);
backtrace_symbols_fd(array, size, 2);
}
+#endif
-static inline void assert_trace(const char *assertion, const char *filename,
- const char *func, unsigned line, int val)
+static inline void warning_trace(const char *assertion, const char *filename,
+ const char *func, unsigned line, long val)
{
- if (val)
+ if (!val)
return;
- if (assertion)
- fprintf(stderr, "%s:%d: %s: Assertion `%s` failed, value %d\n",
- filename, line, func, assertion, val);
- else
- fprintf(stderr, "%s:%d: %s: Assertion failed, value %d.\n",
- filename, line, func, val);
+ fprintf(stderr,
+ "%s:%d: %s: Warning: assertion `%s` failed, value %ld\n",
+ filename, line, func, assertion, val);
+#ifndef BTRFS_DISABLE_BACKTRACE
print_trace();
- abort();
- exit(1);
-}
-
-#define BUG() assert_trace(NULL, __FILE__, __func__, __LINE__, 0)
-#else
-#define BUG() assert(0)
#endif
+}
-static inline void warning_trace(const char *assertion, const char *filename,
- const char *func, unsigned line, int val,
- int trace)
+static inline void bugon_trace(const char *assertion, const char *filename,
+ const char *func, unsigned line, long val)
{
- if (val)
+ if (!val)
return;
- if (assertion)
- fprintf(stderr,
- "%s:%d: %s: Warning: assertion `%s` failed, value %d\n",
- filename, line, func, assertion, val);
- else
- fprintf(stderr,
- "%s:%d: %s: Warning: assertion failed, value %d.\n",
- filename, line, func, val);
+ fprintf(stderr,
+ "%s:%d: %s: BUG_ON `%s` triggered, value %ld\n",
+ filename, line, func, assertion, val);
#ifndef BTRFS_DISABLE_BACKTRACE
- if (trace)
- print_trace();
+ print_trace();
#endif
+ abort();
+ exit(1);
}
-
#ifdef __CHECKER__
#define __force __attribute__((force))
#define __bitwise__ __attribute__((bitwise))
return (long) ptr;
}
-static inline long IS_ERR(const void *ptr)
+static inline int IS_ERR(const void *ptr)
{
return IS_ERR_VALUE((unsigned long)ptr);
}
+static inline int IS_ERR_OR_NULL(const void *ptr)
+{
+ return !ptr || IS_ERR(ptr);
+}
+
/*
* This looks more complex than it should be. But we need to
* get the type for the ~ right in round_down (it needs to be
#define vfree(x) free(x)
#ifndef BTRFS_DISABLE_BACKTRACE
-#define BUG_ON(c) assert_trace(#c, __FILE__, __func__, __LINE__, !(c))
-#define WARN_ON(c) warning_trace(#c, __FILE__, __func__, __LINE__, !(c), 1)
-#else
-#define BUG_ON(c) assert(!(c))
-#define WARN_ON(c) warning_trace(#c, __FILE__, __func__, __LINE__, !(c), 0)
-#endif
-
+static inline void assert_trace(const char *assertion, const char *filename,
+ const char *func, unsigned line, long val)
+{
+ if (val)
+ return;
+ fprintf(stderr,
+ "%s:%d: %s: Assertion `%s` failed, value %ld\n",
+ filename, line, func, assertion, val);
#ifndef BTRFS_DISABLE_BACKTRACE
-#define ASSERT(c) assert_trace(#c, __FILE__, __func__, __LINE__, (c))
+ print_trace();
+#endif
+ abort();
+ exit(1);
+}
+#define ASSERT(c) assert_trace(#c, __FILE__, __func__, __LINE__, (long)(c))
#else
#define ASSERT(c) assert(c)
#endif
+#define BUG_ON(c) bugon_trace(#c, __FILE__, __func__, __LINE__, (long)(c))
+#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) );})
+#ifndef __bitwise
#ifdef __CHECKER__
#define __bitwise __bitwise__
#else
#define __bitwise
-#endif
+#endif /* __CHECKER__ */
+#endif /* __bitwise */
/* Alignment check */
#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0)