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Subject[PATCH v1] x86/intel_rdt: Switch to bitmap_zalloc()
Date
Switch to bitmap_zalloc() to show clearly what we are allocating.
Besides that it returns pointer of bitmap type instead of opaque void *.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
arch/x86/kernel/cpu/intel_rdt.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kernel/cpu/intel_rdt.c b/arch/x86/kernel/cpu/intel_rdt.c
index abb71ac70443..1214f3f7ec6d 100644
--- a/arch/x86/kernel/cpu/intel_rdt.c
+++ b/arch/x86/kernel/cpu/intel_rdt.c
@@ -485,9 +485,7 @@ static int domain_setup_mon_state(struct rdt_resource *r, struct rdt_domain *d)
size_t tsize;

if (is_llc_occupancy_enabled()) {
- d->rmid_busy_llc = kcalloc(BITS_TO_LONGS(r->num_rmid),
- sizeof(unsigned long),
- GFP_KERNEL);
+ d->rmid_busy_llc = bitmap_zalloc(r->num_rmid, GFP_KERNEL);
if (!d->rmid_busy_llc)
return -ENOMEM;
INIT_DELAYED_WORK(&d->cqm_limbo, cqm_handle_limbo);
@@ -496,7 +494,7 @@ static int domain_setup_mon_state(struct rdt_resource *r, struct rdt_domain *d)
tsize = sizeof(*d->mbm_total);
d->mbm_total = kcalloc(r->num_rmid, tsize, GFP_KERNEL);
if (!d->mbm_total) {
- kfree(d->rmid_busy_llc);
+ bitmap_free(d->rmid_busy_llc);
return -ENOMEM;
}
}
@@ -504,7 +502,7 @@ static int domain_setup_mon_state(struct rdt_resource *r, struct rdt_domain *d)
tsize = sizeof(*d->mbm_local);
d->mbm_local = kcalloc(r->num_rmid, tsize, GFP_KERNEL);
if (!d->mbm_local) {
- kfree(d->rmid_busy_llc);
+ bitmap_free(d->rmid_busy_llc);
kfree(d->mbm_total);
return -ENOMEM;
}
@@ -612,7 +610,7 @@ static void domain_remove_cpu(int cpu, struct rdt_resource *r)

kfree(d->ctrl_val);
kfree(d->mbps_val);
- kfree(d->rmid_busy_llc);
+ bitmap_free(d->rmid_busy_llc);
kfree(d->mbm_total);
kfree(d->mbm_local);
kfree(d);
--
2.18.0
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