dict.c: prevent useless resize to same size.

Related to issue #2306.
This commit is contained in:
antirez 2015-02-05 10:42:09 +01:00
parent 170e41464d
commit 777020839a

View File

@ -211,6 +211,9 @@ int dictExpand(dict *d, unsigned long size)
if (dictIsRehashing(d) || d->ht[0].used > size)
return DICT_ERR;
/* Rehashing to the same table size is not useful. */
if (realsize == d->ht[0].size) return DICT_ERR;
/* Allocate the new hash table and initialize all pointers to NULL */
n.size = realsize;
n.sizemask = realsize-1;