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Diffstat (limited to 'include/linux/kernel.h')
-rw-r--r--include/linux/kernel.h14
1 files changed, 12 insertions, 2 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index bd6d96cf80b1..0ad4c3044cf9 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -78,8 +78,11 @@
#define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
#define DIV_ROUND_UP __KERNEL_DIV_ROUND_UP
-#define DIV_ROUND_UP_ULL(ll,d) \
- ({ unsigned long long _tmp = (ll)+(d)-1; do_div(_tmp, d); _tmp; })
+
+#define DIV_ROUND_DOWN_ULL(ll, d) \
+ ({ unsigned long long _tmp = (ll); do_div(_tmp, d); _tmp; })
+
+#define DIV_ROUND_UP_ULL(ll, d) DIV_ROUND_DOWN_ULL((ll) + (d) - 1, (d))
#if BITS_PER_LONG == 32
# define DIV_ROUND_UP_SECTOR_T(ll,d) DIV_ROUND_UP_ULL(ll, d)
@@ -277,6 +280,13 @@ extern int oops_may_print(void);
void do_exit(long error_code) __noreturn;
void complete_and_exit(struct completion *, long) __noreturn;
+#ifdef CONFIG_ARCH_HAS_REFCOUNT
+void refcount_error_report(struct pt_regs *regs, const char *err);
+#else
+static inline void refcount_error_report(struct pt_regs *regs, const char *err)
+{ }
+#endif
+
/* Internal, do not use. */
int __must_check _kstrtoul(const char *s, unsigned int base, unsigned long *res);
int __must_check _kstrtol(const char *s, unsigned int base, long *res);