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crush: remove redundant local variable

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Remove extra x1 variable, it's just temporary placeholder that
clutters the code unnecessarily.

Reflects ceph.git commit 0d19408d91dd747340d70287b4ef9efd89e95c6b.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Ilya Dryomov 2016-09-27 12:35:55 +02:00
parent 74a5293832
commit 64f77566e1
1 changed files with 2 additions and 3 deletions
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5
net/ceph/crush/mapper.c
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@ -245,7 +245,7 @@ static int bucket_straw_choose(struct crush_bucket_straw *bucket,
/* compute 2^44*log2(input+1) */
static __u64 crush_ln(unsigned int xin)
{
unsigned int x = xin, x1;
unsigned int x = xin;
int iexpon, index1, index2;
__u64 RH, LH, LL, xl64, result;
@ -273,12 +273,11 @@ static __u64 crush_ln(unsigned int xin)
/* RH*x ~ 2^48 * (2^15 + xf), xf<2^8 */
xl64 = (__s64)x * RH;
xl64 >>= 48;
x1 = xl64;
result = iexpon;
result <<= (12 + 32);
index2 = x1 & 0xff;
index2 = xl64 & 0xff;
/* LL ~ 2^48*log2(1.0+index2/2^15) */
LL = __LL_tbl[index2];