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-rw-r--r--sys/ia64/include/runq.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/ia64/include/runq.h b/sys/ia64/include/runq.h
index 3fc658a..9f844b6 100644
--- a/sys/ia64/include/runq.h
+++ b/sys/ia64/include/runq.h
@@ -36,7 +36,7 @@
#define RQB_BIT(pri) (1UL << ((pri) & (RQB_BPW - 1)))
#define RQB_WORD(pri) ((pri) >> RQB_L2BPW)
-#define RQB_FFS(word) (ffs64(word))
+#define RQB_FFS(word) (ffs64(word) - 1)
/*
* Type of run queue status word.
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