diff options
| -rw-r--r-- | fs/resctrl/rdtgroup.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/resctrl/rdtgroup.c b/fs/resctrl/rdtgroup.c index 0320360cd7a6..41ce4b377af4 100644 --- a/fs/resctrl/rdtgroup.c +++ b/fs/resctrl/rdtgroup.c @@ -3383,11 +3383,12 @@ static u32 cbm_ensure_valid(u32 _val, struct rdt_resource *r) { unsigned int cbm_len = r->cache.cbm_len; unsigned long first_bit, zero_bit; - unsigned long val = _val; + unsigned long val; - if (!val) - return 0; + if (!_val || r->cache.arch_has_sparse_bitmasks) + return _val; + val = _val; first_bit = find_first_bit(&val, cbm_len); zero_bit = find_next_zero_bit(&val, cbm_len, first_bit); |