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Index: sys/kern/subr_blist.c
===================================================================
--- sys/kern/subr_blist.c
+++ sys/kern/subr_blist.c
@@ -184,42 +184,12 @@
((u_daddr_t)-1 >> (BLIST_RADIX - (n + count))));
}
-/*
- * Find the first bit set in a u_daddr_t.
- */
-static inline int
-generic_bitpos(u_daddr_t mask)
-{
- int hi, lo, mid;
-
- lo = 0;
- hi = BLIST_RADIX;
- while (lo + 1 < hi) {
- mid = (lo + hi) >> 1;
- if (mask & bitrange(0, mid))
- hi = mid;
- else
- lo = mid;
- }
- return (lo);
-}
-
static inline int
bitpos(u_daddr_t mask)
{
- switch (sizeof(mask)) {
-#ifdef HAVE_INLINE_FFSLL
- case sizeof(long long):
- return (ffsll(mask) - 1);
-#endif
-#ifdef HAVE_INLINE_FFS
- case sizeof(int):
- return (ffs(mask) - 1);
-#endif
- default:
- return (generic_bitpos(mask));
- }
+ CTASSERT(sizeof(long long) >= sizeof(mask));
+ return (ffsll(mask) - 1);
}
/*

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