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x86/intel_rdt: Switch to bitmap_zalloc() 

Switch to bitmap_zalloc() to show clearly what is allocated. Besides that
it returns a pointer of bitmap type instead of opaque void *.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: https://lkml.kernel.org/r/20180830115039.63430-1-andriy.shevchenko@linux.intel.com
This commit is contained in:
Andy Shevchenko 2018-08-30 14:50:39 +03:00 committed by Thomas Gleixner
parent 53ed74af05
commit 82159876d3
1 changed files with 4 additions and 6 deletions
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10
arch/x86/kernel/cpu/intel_rdt.c
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@ -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);