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linux(4): Use the right function to get the bit index in vdso binuptime.

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This is modeled after a1f93266 (by kib@).

MFC after:		2 weeks
This commit is contained in:
Dmitry Chagin 2022-05-08 17:20:52 +03:00
parent 5a6a4fb284
commit c6df217603
1 changed files with 6 additions and 6 deletions
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12
sys/compat/linux/linux_vdso_gtod.inc
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@ -37,25 +37,25 @@ fls(int mask)
#ifdef _LP64
static int
ffsl(long mask)
flsl(long mask)
{
int bit;
if (mask == 0)
return (0);
for (bit = 1; !(mask & 1); bit++)
for (bit = 1; mask != 1; bit++)
mask = (unsigned long)mask >> 1;
return (bit);
}
#else
static int
ffsll(long long mask)
flsll(long long mask)
{
int bit;
if (mask == 0)
return (0);
for (bit = 1; !(mask & 1); bit++)
for (bit = 1; mask != 1; bit++)
mask = (unsigned long long)mask >> 1;
return (bit);
}
@ -186,9 +186,9 @@ freebsd_binuptime(struct bintime *bt, struct vdso_timekeep *tk, bool abs)
return (error);
scale = th->th_scale;
#ifdef _LP64
scale_bits = ffsl(scale);
scale_bits = flsl(scale);
#else
scale_bits = ffsll(scale);
scale_bits = flsll(scale);
#endif
if (__predict_false(scale_bits + fls(delta) > 63)) {
x = (scale >> 32) * delta;