diff options
Diffstat (limited to 'module/zfs/metaslab.c')
| -rw-r--r-- | module/zfs/metaslab.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/module/zfs/metaslab.c b/module/zfs/metaslab.c index 92f51806a..23f3e2989 100644 --- a/module/zfs/metaslab.c +++ b/module/zfs/metaslab.c @@ -1874,7 +1874,12 @@ static unsigned int metaslab_idx_func(multilist_t *ml, void *arg) { metaslab_t *msp = arg; - return (msp->ms_id % multilist_get_num_sublists(ml)); + + /* + * ms_id values are allocated sequentially, so full 64bit + * division would be a waste of time, so limit it to 32 bits. + */ + return ((unsigned int)msp->ms_id % multilist_get_num_sublists(ml)); } uint64_t |